diff --git a/CHANGELOG.md b/CHANGELOG.md
index 046f2935..c950fcad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
   allowed to contain those fields.
 - Empty dictionary constructors now create an empty object instead of being
   treated like non-object literal `external` constructors.
+- Generate MDN API documentation for getters.
 - Update the docs for generated interface types to reference the MDN Web Docs
   project.
 - Address several broken links in API documentation.
diff --git a/analysis_options.yaml b/analysis_options.yaml
index 15660257..a4687c44 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -35,7 +35,6 @@ linter:
   - no_runtimeType_toString
   - package_api_docs
   - prefer_const_declarations
-  - prefer_expression_function_bodies
   - prefer_final_locals
   - unnecessary_await_in_return
   - use_string_buffers
diff --git a/lib/src/dom/clipboard_apis.dart b/lib/src/dom/clipboard_apis.dart
index 876a1e61..ddf3668e 100644
--- a/lib/src/dom/clipboard_apis.dart
+++ b/lib/src/dom/clipboard_apis.dart
@@ -29,8 +29,8 @@ extension type ClipboardEventInit._(JSObject _) implements EventInit, JSObject {
     DataTransfer? clipboardData,
   });
 
-  external set clipboardData(DataTransfer? value);
   external DataTransfer? get clipboardData;
+  external set clipboardData(DataTransfer? value);
 }
 
 /// The **`ClipboardEvent`** interface of the
@@ -49,6 +49,17 @@ extension type ClipboardEvent._(JSObject _) implements Event, JSObject {
     ClipboardEventInit eventInitDict,
   ]);
 
+  /// The **`clipboardData`** property of the [ClipboardEvent] interface holds a
+  /// [DataTransfer] object, which can be used to:
+  ///
+  /// - specify what data should be put into the clipboard from the
+  ///   [Element.cut_event] and [Element.copy_event] event handlers, typically
+  ///   with a [DataTransfer.setData] call;
+  /// - obtain the data to be pasted from the [Element.paste_event] event
+  ///   handler, typically with a [DataTransfer.getData] call.
+  ///
+  /// See the [Element.cut_event], [Element.copy_event], and
+  /// [Element.paste_event] events documentation for more information.
   external DataTransfer? get clipboardData;
 }
 
@@ -80,14 +91,23 @@ extension type ClipboardItem._(JSObject _) implements JSObject {
   /// `Promise` that resolves with a [Blob] of the requested  or an error if the
   /// MIME type is not found.
   external JSPromise<Blob> getType(String type);
+
+  /// The read-only **`presentationStyle`** property of the [ClipboardItem]
+  /// interface returns a string indicating how an item should be presented.
+  ///
+  /// For example, in some contexts an image might be displayed inline, while in
+  /// others it might be represented as an attachment.
   external PresentationStyle get presentationStyle;
+
+  /// The read-only **`types`** property of the [ClipboardItem] interface
+  /// returns an `Array` of  available within the [ClipboardItem]
   external JSArray<JSString> get types;
 }
 extension type ClipboardItemOptions._(JSObject _) implements JSObject {
   external factory ClipboardItemOptions({PresentationStyle presentationStyle});
 
-  external set presentationStyle(PresentationStyle value);
   external PresentationStyle get presentationStyle;
+  external set presentationStyle(PresentationStyle value);
 }
 
 /// The **`Clipboard`** interface of the
@@ -151,8 +171,8 @@ extension type Clipboard._(JSObject _) implements EventTarget, JSObject {
 extension type ClipboardUnsanitizedFormats._(JSObject _) implements JSObject {
   external factory ClipboardUnsanitizedFormats({JSArray<JSString> unsanitized});
 
-  external set unsanitized(JSArray<JSString> value);
   external JSArray<JSString> get unsanitized;
+  external set unsanitized(JSArray<JSString> value);
 }
 extension type ClipboardPermissionDescriptor._(JSObject _)
     implements PermissionDescriptor, JSObject {
@@ -161,6 +181,6 @@ extension type ClipboardPermissionDescriptor._(JSObject _)
     bool allowWithoutGesture,
   });
 
-  external set allowWithoutGesture(bool value);
   external bool get allowWithoutGesture;
+  external set allowWithoutGesture(bool value);
 }
diff --git a/lib/src/dom/compression.dart b/lib/src/dom/compression.dart
index 45e3d711..3dc3df7e 100644
--- a/lib/src/dom/compression.dart
+++ b/lib/src/dom/compression.dart
@@ -27,7 +27,12 @@ typedef CompressionFormat = String;
 extension type CompressionStream._(JSObject _) implements JSObject {
   external factory CompressionStream(CompressionFormat format);
 
+  /// The **`readable`** read-only property of the [CompressionStream] interface
+  /// returns a [ReadableStream].
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [CompressionStream] interface
+  /// returns a [WritableStream].
   external WritableStream get writable;
 }
 
@@ -41,6 +46,11 @@ extension type CompressionStream._(JSObject _) implements JSObject {
 extension type DecompressionStream._(JSObject _) implements JSObject {
   external factory DecompressionStream(CompressionFormat format);
 
+  /// The **`readable`** read-only property of the [DecompressionStream]
+  /// interface returns a [ReadableStream].
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [DecompressionStream]
+  /// interface returns a [WritableStream].
   external WritableStream get writable;
 }
diff --git a/lib/src/dom/credential_management.dart b/lib/src/dom/credential_management.dart
index add175b3..b016bdfa 100644
--- a/lib/src/dom/credential_management.dart
+++ b/lib/src/dom/credential_management.dart
@@ -38,7 +38,16 @@ typedef CredentialMediationRequirement = String;
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Credential).
 extension type Credential._(JSObject _) implements JSObject {
   external static JSPromise<JSBoolean> isConditionalMediationAvailable();
+
+  /// The **`id`** read-only property of the [Credential] interface returns a
+  /// string containing the credential's identifier. This might be a GUID,
+  /// username, or email address, or some other value, depending on the type of
+  /// credential.
   external String get id;
+
+  /// The **`type`** read-only property of the [Credential] interface returns a
+  /// string containing the credential's type. Valid values are `password`,
+  /// `federated`, `public-key`, `identity` and `otp`.
   external String get type;
 }
 
@@ -138,8 +147,8 @@ extension type CredentialsContainer._(JSObject _) implements JSObject {
 extension type CredentialData._(JSObject _) implements JSObject {
   external factory CredentialData({required String id});
 
-  external set id(String value);
   external String get id;
+  external set id(String value);
 }
 extension type CredentialRequestOptions._(JSObject _) implements JSObject {
   external factory CredentialRequestOptions({
@@ -150,16 +159,16 @@ extension type CredentialRequestOptions._(JSObject _) implements JSObject {
     PublicKeyCredentialRequestOptions publicKey,
   });
 
-  external set mediation(CredentialMediationRequirement value);
   external CredentialMediationRequirement get mediation;
-  external set signal(AbortSignal value);
+  external set mediation(CredentialMediationRequirement value);
   external AbortSignal get signal;
-  external set password(bool value);
+  external set signal(AbortSignal value);
   external bool get password;
-  external set federated(FederatedCredentialRequestOptions value);
+  external set password(bool value);
   external FederatedCredentialRequestOptions get federated;
-  external set publicKey(PublicKeyCredentialRequestOptions value);
+  external set federated(FederatedCredentialRequestOptions value);
   external PublicKeyCredentialRequestOptions get publicKey;
+  external set publicKey(PublicKeyCredentialRequestOptions value);
 }
 extension type CredentialCreationOptions._(JSObject _) implements JSObject {
   external factory CredentialCreationOptions({
@@ -169,14 +178,14 @@ extension type CredentialCreationOptions._(JSObject _) implements JSObject {
     PublicKeyCredentialCreationOptions publicKey,
   });
 
-  external set signal(AbortSignal value);
   external AbortSignal get signal;
-  external set password(PasswordCredentialInit value);
+  external set signal(AbortSignal value);
   external PasswordCredentialInit get password;
-  external set federated(FederatedCredentialInit value);
+  external set password(PasswordCredentialInit value);
   external FederatedCredentialInit get federated;
-  external set publicKey(PublicKeyCredentialCreationOptions value);
+  external set federated(FederatedCredentialInit value);
   external PublicKeyCredentialCreationOptions get publicKey;
+  external set publicKey(PublicKeyCredentialCreationOptions value);
 }
 
 /// The **`PasswordCredential`** interface of the
@@ -196,8 +205,23 @@ extension type PasswordCredential._(JSObject _)
     implements Credential, JSObject {
   external factory PasswordCredential(JSObject dataOrForm);
 
+  /// The **`password`** read-only property
+  /// of the [PasswordCredential] interface returns a string
+  /// containing the password of the credential.
   external String get password;
+
+  /// The **`name`** read-only property of
+  /// the [PasswordCredential] interface returns a string
+  /// containing a human-readable public name for display in a credential
+  /// chooser.
   external String get name;
+
+  /// The **`iconURL`** read-only property
+  /// of the [PasswordCredential] interface returns a string
+  /// containing a URL pointing to an image for an icon. This image is intended
+  /// for display
+  /// in a credential chooser. The URL must be accessible without
+  /// authentication.
   external String get iconURL;
 }
 extension type PasswordCredentialData._(JSObject _)
@@ -210,14 +234,14 @@ extension type PasswordCredentialData._(JSObject _)
     required String password,
   });
 
-  external set name(String value);
   external String get name;
-  external set iconURL(String value);
+  external set name(String value);
   external String get iconURL;
-  external set origin(String value);
+  external set iconURL(String value);
   external String get origin;
-  external set password(String value);
+  external set origin(String value);
   external String get password;
+  external set password(String value);
 }
 
 /// The **`FederatedCredential`** interface of the
@@ -244,7 +268,18 @@ extension type FederatedCredential._(JSObject _)
     implements Credential, JSObject {
   external factory FederatedCredential(FederatedCredentialInit data);
 
+  /// The **`provider`** property of the
+  /// [FederatedCredential] interface returns a string
+  /// containing a credential's federated identity provider.
   external String get provider;
+
+  /// The **`protocol`** property of the
+  /// [FederatedCredential] interface returns a read-only
+  /// string containing a credential's federated identity protocol. If this
+  /// property is
+  /// [`null`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null),
+  /// the protocol may be inferred from the
+  /// [FederatedCredential.provider] property.
   external String? get protocol;
   external String get name;
   external String get iconURL;
@@ -256,10 +291,10 @@ extension type FederatedCredentialRequestOptions._(JSObject _)
     JSArray<JSString> protocols,
   });
 
-  external set providers(JSArray<JSString> value);
   external JSArray<JSString> get providers;
-  external set protocols(JSArray<JSString> value);
+  external set providers(JSArray<JSString> value);
   external JSArray<JSString> get protocols;
+  external set protocols(JSArray<JSString> value);
 }
 extension type FederatedCredentialInit._(JSObject _)
     implements CredentialData, JSObject {
@@ -272,14 +307,14 @@ extension type FederatedCredentialInit._(JSObject _)
     String protocol,
   });
 
-  external set name(String value);
   external String get name;
-  external set iconURL(String value);
+  external set name(String value);
   external String get iconURL;
-  external set origin(String value);
+  external set iconURL(String value);
   external String get origin;
-  external set provider(String value);
+  external set origin(String value);
   external String get provider;
-  external set protocol(String value);
+  external set provider(String value);
   external String get protocol;
+  external set protocol(String value);
 }
diff --git a/lib/src/dom/csp.dart b/lib/src/dom/csp.dart
index 2c96cdb3..b7a6240a 100644
--- a/lib/src/dom/csp.dart
+++ b/lib/src/dom/csp.dart
@@ -66,17 +66,70 @@ extension type SecurityPolicyViolationEvent._(JSObject _)
     SecurityPolicyViolationEventInit eventInitDict,
   ]);
 
+  /// The **`documentURI`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the URI of the document or worker in which the violation was
+  /// found.
   external String get documentURI;
+
+  /// The **`referrer`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the referrer of the resources whose policy was violated. This
+  /// will be a URL
+  /// or `null`.
   external String get referrer;
+
+  /// The **`blockedURI`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the URI of the resource that was blocked because it violates
+  /// a policy.
   external String get blockedURI;
+
+  /// The **`effectiveDirective`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the directive whose enforcement uncovered the violation.
   external String get effectiveDirective;
+
+  /// The **`violatedDirective`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the directive whose enforcement uncovered the violation.
   external String get violatedDirective;
+
+  /// The **`originalPolicy`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// containing the policy whose enforcement uncovered the violation.
   external String get originalPolicy;
+
+  /// The **`sourceFile`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing the URI of the document or worker in which the violation was
+  /// found.
   external String get sourceFile;
+
+  /// The **`sample`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a string
+  /// representing a sample of the resource that caused the violation.
   external String get sample;
+
+  /// The **`disposition`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface indicates how the violated policy
+  /// is configured to be treated by the user agent.
   external SecurityPolicyViolationEventDisposition get disposition;
+
+  /// The **`statusCode`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is a number representing the HTTP
+  /// status code of the document or worker in which the violation occurred.
   external int get statusCode;
+
+  /// The **`lineNumber`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is the line number in the
+  /// document
+  /// or worker at which the violation occurred.
   external int get lineNumber;
+
+  /// The **`columnNumber`** read-only property of the
+  /// [SecurityPolicyViolationEvent] interface is the column number in the
+  /// document or worker at which the violation occurred.
   external int get columnNumber;
 }
 extension type SecurityPolicyViolationEventInit._(JSObject _)
@@ -99,28 +152,28 @@ extension type SecurityPolicyViolationEventInit._(JSObject _)
     int columnNumber,
   });
 
-  external set documentURI(String value);
   external String get documentURI;
-  external set referrer(String value);
+  external set documentURI(String value);
   external String get referrer;
-  external set blockedURI(String value);
+  external set referrer(String value);
   external String get blockedURI;
-  external set violatedDirective(String value);
+  external set blockedURI(String value);
   external String get violatedDirective;
-  external set effectiveDirective(String value);
+  external set violatedDirective(String value);
   external String get effectiveDirective;
-  external set originalPolicy(String value);
+  external set effectiveDirective(String value);
   external String get originalPolicy;
-  external set sourceFile(String value);
+  external set originalPolicy(String value);
   external String get sourceFile;
-  external set sample(String value);
+  external set sourceFile(String value);
   external String get sample;
-  external set disposition(SecurityPolicyViolationEventDisposition value);
+  external set sample(String value);
   external SecurityPolicyViolationEventDisposition get disposition;
-  external set statusCode(int value);
+  external set disposition(SecurityPolicyViolationEventDisposition value);
   external int get statusCode;
-  external set lineNumber(int value);
+  external set statusCode(int value);
   external int get lineNumber;
-  external set columnNumber(int value);
+  external set lineNumber(int value);
   external int get columnNumber;
+  external set columnNumber(int value);
 }
diff --git a/lib/src/dom/css_animations.dart b/lib/src/dom/css_animations.dart
index 9ba9debc..f99cdbd2 100644
--- a/lib/src/dom/css_animations.dart
+++ b/lib/src/dom/css_animations.dart
@@ -30,8 +30,27 @@ extension type AnimationEvent._(JSObject _) implements Event, JSObject {
     AnimationEventInit animationEventInitDict,
   ]);
 
+  /// The **`AnimationEvent.animationName`** read-only property is a
+  /// string containing the value of the  CSS
+  /// property associated with the transition.
   external String get animationName;
+
+  /// The **`AnimationEvent.elapsedTime`** read-only property is a
+  /// `float` giving the amount of time the animation has been running, in
+  /// seconds,
+  /// when this event fired, excluding any time the animation was paused. For an
+  /// [Element.animationstart_event] event,
+  /// `elapsedTime` is `0.0` unless there was a negative value for
+  /// , in which case the event will be fired with
+  /// `elapsedTime` containing `(-1 * delay)`.
   external num get elapsedTime;
+
+  /// The **`AnimationEvent.pseudoElement`** read-only property is a
+  /// string, starting with `'::'`, containing the name of the
+  /// [pseudo-element](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements)
+  /// the animation runs on.
+  /// If the animation doesn't run on a pseudo-element but on the element, an
+  /// empty string: `''`.
   external String get pseudoElement;
 }
 extension type AnimationEventInit._(JSObject _) implements EventInit, JSObject {
@@ -44,12 +63,12 @@ extension type AnimationEventInit._(JSObject _) implements EventInit, JSObject {
     String pseudoElement,
   });
 
-  external set animationName(String value);
   external String get animationName;
-  external set elapsedTime(num value);
+  external set animationName(String value);
   external num get elapsedTime;
-  external set pseudoElement(String value);
+  external set elapsedTime(num value);
   external String get pseudoElement;
+  external set pseudoElement(String value);
 }
 
 /// The **`CSSKeyframeRule`** interface describes an object representing a set
@@ -62,8 +81,16 @@ extension type AnimationEventInit._(JSObject _) implements EventInit, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSKeyframeRule).
 extension type CSSKeyframeRule._(JSObject _) implements CSSRule, JSObject {
-  external set keyText(String value);
+  /// The **`keyText`** property of the [CSSKeyframeRule] interface represents
+  /// the keyframe selector as a comma-separated list of percentage values. The
+  /// from and to keywords map to 0% and 100%, respectively.
   external String get keyText;
+  external set keyText(String value);
+
+  /// The read-only **`CSSKeyframeRule.style`** property is the
+  /// [CSSStyleDeclaration] interface for the
+  /// [declaration block](https://www.w3.org/TR/1998/REC-CSS2-19980512/syndata.html#block)
+  /// of the [CSSKeyframeRule].
   external CSSStyleDeclaration get style;
 }
 
@@ -88,8 +115,15 @@ extension type CSSKeyframesRule._(JSObject _) implements CSSRule, JSObject {
   /// The **`findRule()`** method of the [CSSKeyframeRule] interface finds the
   /// [CSSKeyFrameRule] that matches the specified keyframe selector.
   external CSSKeyframeRule? findRule(String select);
-  external set name(String value);
+
+  /// The **`name`** property of the [CSSKeyframeRule] interface gets and sets
+  /// the name of the animation as used by the  property.
   external String get name;
+  external set name(String value);
+
+  /// The read-only **`cssRules`** property of the [CSSKeyframeRule] interface
+  /// returns a [CSSRuleList] containing the rules in the keyframes
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule).
   external CSSRuleList get cssRules;
   external int get length;
 }
diff --git a/lib/src/dom/css_animations_2.dart b/lib/src/dom/css_animations_2.dart
index 58e03954..949c29fe 100644
--- a/lib/src/dom/css_animations_2.dart
+++ b/lib/src/dom/css_animations_2.dart
@@ -23,5 +23,10 @@ import 'web_animations.dart';
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSAnimation).
 extension type CSSAnimation._(JSObject _) implements Animation, JSObject {
+  /// The **`animationName`** property of the
+  /// [CSSAnimation] interface returns the . This
+  /// specifies one or more keyframe at-rules which describe the animation
+  /// applied to the
+  /// element.
   external String get animationName;
 }
diff --git a/lib/src/dom/css_cascade.dart b/lib/src/dom/css_cascade.dart
index b2dd9fbf..6c1c1014 100644
--- a/lib/src/dom/css_cascade.dart
+++ b/lib/src/dom/css_cascade.dart
@@ -25,6 +25,8 @@ import 'cssom.dart';
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSLayerBlockRule).
 extension type CSSLayerBlockRule._(JSObject _)
     implements CSSGroupingRule, JSObject {
+  /// The read-only **`name`** property of the [CSSLayerBlockRule] interface
+  /// represents the name of the associated cascade layer.
   external String get name;
 }
 
@@ -45,5 +47,8 @@ extension type CSSLayerBlockRule._(JSObject _)
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSLayerStatementRule).
 extension type CSSLayerStatementRule._(JSObject _)
     implements CSSRule, JSObject {
+  /// The read-only **`nameList`** property of the [CSSLayerStatementRule]
+  /// interface return the list of associated cascade layer names. The names
+  /// can't be modified.
   external JSArray<JSString> get nameList;
 }
diff --git a/lib/src/dom/css_conditional.dart b/lib/src/dom/css_conditional.dart
index cb2ffc58..062fe593 100644
--- a/lib/src/dom/css_conditional.dart
+++ b/lib/src/dom/css_conditional.dart
@@ -29,6 +29,9 @@ import 'cssom.dart';
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSConditionRule).
 extension type CSSConditionRule._(JSObject _)
     implements CSSGroupingRule, JSObject {
+  /// The **`conditionText`** property of
+  /// the [CSSConditionRule] interface returns or sets the text of the CSS
+  /// rule.
   external String get conditionText;
 }
 
@@ -40,6 +43,9 @@ extension type CSSConditionRule._(JSObject _)
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSMediaRule).
 extension type CSSMediaRule._(JSObject _)
     implements CSSConditionRule, JSObject {
+  /// The read-only **`media`** property of the
+  /// [CSSMediaRule] interface [MediaList] represents the intended
+  /// destination medium for style information.
   external MediaList get media;
 }
 
diff --git a/lib/src/dom/css_contain_3.dart b/lib/src/dom/css_contain_3.dart
index 66083dc8..2fe1f7e3 100644
--- a/lib/src/dom/css_contain_3.dart
+++ b/lib/src/dom/css_contain_3.dart
@@ -28,6 +28,34 @@ import 'css_conditional.dart';
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSContainerRule).
 extension type CSSContainerRule._(JSObject _)
     implements CSSConditionRule, JSObject {
+  /// The read-only **`containerName`** property of the [CSSContainerRule]
+  /// interface represents the container name of the associated CSS  at-rule.
+  ///
+  /// For example, the value of `containerName` for the  below is `sidebar`:
+  ///
+  /// ```css
+  /// @container sidebar (min-width: 700px) {
+  ///   .card {
+  ///     font-size: 2em;
+  ///   }
+  /// }
+  /// ```
   external String get containerName;
+
+  /// The read-only **`containerQuery`** property of the [CSSContainerRule]
+  /// interface returns a string representing the container conditions that are
+  /// evaluated when the container changes size in order to determine if the
+  /// styles in the associated  are applied.
+  ///
+  /// For example, the value of `containerQuery` for the  below is `(min-width:
+  /// 700px)`:
+  ///
+  /// ```css
+  /// @container sidebar (min-width: 700px) {
+  ///   .card {
+  ///     font-size: 2em;
+  ///   }
+  /// }
+  /// ```
   external String get containerQuery;
 }
diff --git a/lib/src/dom/css_counter_styles.dart b/lib/src/dom/css_counter_styles.dart
index 120481c5..e1ac9a0d 100644
--- a/lib/src/dom/css_counter_styles.dart
+++ b/lib/src/dom/css_counter_styles.dart
@@ -23,26 +23,68 @@ import 'cssom.dart';
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSCounterStyleRule).
 extension type CSSCounterStyleRule._(JSObject _) implements CSSRule, JSObject {
-  external set name(String value);
+  /// The **`name`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the  defined as the `name` for the associated rule.
   external String get name;
-  external set system(String value);
+  external set name(String value);
+
+  /// The **`system`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get system;
-  external set symbols(String value);
+  external set system(String value);
+
+  /// The **`symbols`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get symbols;
-  external set additiveSymbols(String value);
+  external set symbols(String value);
+
+  /// The **`additiveSymbols`** property of the [CSSCounterStyleRule] interface
+  /// gets and sets the value of the  descriptor. If the descriptor does not
+  /// have a value set, this attribute returns an empty string.
   external String get additiveSymbols;
-  external set negative(String value);
+  external set additiveSymbols(String value);
+
+  /// The **`negative`** property of the [CSSCounterStyleRule] interface gets
+  /// and sets the value of the  descriptor. If the descriptor does not have a
+  /// value set, this attribute returns an empty string.
   external String get negative;
-  external set prefix(String value);
+  external set negative(String value);
+
+  /// The **`prefix`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get prefix;
-  external set suffix(String value);
+  external set prefix(String value);
+
+  /// The **`suffix`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get suffix;
-  external set range(String value);
+  external set suffix(String value);
+
+  /// The **`range`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get range;
-  external set pad(String value);
+  external set range(String value);
+
+  /// The **`pad`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get pad;
-  external set speakAs(String value);
+  external set pad(String value);
+
+  /// The **`speakAs`** property of the [CSSCounterStyleRule] interface gets and
+  /// sets the value of the  descriptor. If the descriptor does not have a value
+  /// set, this attribute returns an empty string.
   external String get speakAs;
-  external set fallback(String value);
+  external set speakAs(String value);
+
+  /// The **`fallback`** property of the [CSSCounterStyleRule] interface gets
+  /// and sets the value of the  descriptor. If the descriptor does not have a
+  /// value set, this attribute returns an empty string.
   external String get fallback;
+  external set fallback(String value);
 }
diff --git a/lib/src/dom/css_font_loading.dart b/lib/src/dom/css_font_loading.dart
index df27fc9f..b00000e7 100644
--- a/lib/src/dom/css_font_loading.dart
+++ b/lib/src/dom/css_font_loading.dart
@@ -33,26 +33,26 @@ extension type FontFaceDescriptors._(JSObject _) implements JSObject {
     String lineGapOverride,
   });
 
-  external set style(String value);
   external String get style;
-  external set weight(String value);
+  external set style(String value);
   external String get weight;
-  external set stretch(String value);
+  external set weight(String value);
   external String get stretch;
-  external set unicodeRange(String value);
+  external set stretch(String value);
   external String get unicodeRange;
-  external set featureSettings(String value);
+  external set unicodeRange(String value);
   external String get featureSettings;
-  external set variationSettings(String value);
+  external set featureSettings(String value);
   external String get variationSettings;
-  external set display(String value);
+  external set variationSettings(String value);
   external String get display;
-  external set ascentOverride(String value);
+  external set display(String value);
   external String get ascentOverride;
-  external set descentOverride(String value);
+  external set ascentOverride(String value);
   external String get descentOverride;
-  external set lineGapOverride(String value);
+  external set descentOverride(String value);
   external String get lineGapOverride;
+  external set lineGapOverride(String value);
 }
 
 /// The **`FontFace`** interface of the
@@ -84,29 +84,117 @@ extension type FontFace._(JSObject _) implements JSObject {
   /// font [FontFace.status] property of the font face is anything other than
   /// `unloaded`, then this method does nothing.
   external JSPromise<FontFace> load();
-  external set family(String value);
+
+  /// The **`FontFace.family`** property allows the author to get or set the
+  /// font family of a [FontFace] object.
+  ///
+  /// The value is used for name matching against a particular font face when
+  /// styling elements using the
+  /// [`font-family`](https://developer.mozilla.org/en-US/docs/Web/CSS/font-family)
+  /// property.
+  /// Any name may be used, and this overrides any name specified in the
+  /// underlying font data.
+  ///
+  /// This property is equivalent to the  descriptor of .
   external String get family;
-  external set style(String value);
+  external set family(String value);
+
+  /// The **`style`** property of the [FontFace] interface retrieves or sets the
+  /// font's style.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get style;
-  external set weight(String value);
+  external set style(String value);
+
+  /// The **`weight`** property of the [FontFace] interface retrieves or sets
+  /// the weight of the font.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get weight;
-  external set stretch(String value);
+  external set weight(String value);
+
+  /// The **`stretch`** property of the [FontFace] interface retrieves or sets
+  /// how the font stretches.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get stretch;
-  external set unicodeRange(String value);
+  external set stretch(String value);
+
+  /// The **`unicodeRange`** property of the [FontFace] interface retrieves or
+  /// sets the range of unicode code points encompassing the font.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get unicodeRange;
-  external set featureSettings(String value);
+  external set unicodeRange(String value);
+
+  /// The **`featureSettings`** property of the [FontFace] interface retrieves
+  /// or sets infrequently used font features that are not available from a
+  /// font's variant properties.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get featureSettings;
-  external set variationSettings(String value);
+  external set featureSettings(String value);
+
+  /// The **`variationSettings`** property of the [FontFace] interface retrieves
+  /// or sets low-level OpenType or TrueType font variations.
+  ///
+  /// This property is equivalent to the  descriptor.
   external String get variationSettings;
-  external set display(String value);
+  external set variationSettings(String value);
+
+  /// The **`display`** property of the [FontFace] interface determines how a
+  /// font face is displayed based on whether and when it is downloaded and
+  /// ready to use.
+  /// This property is equivalent to the CSS `font-display` descriptor.
+  ///
+  /// When this property is used, font loading has a timeline with three
+  /// periods.
+  /// The lengths of the first two periods depend on the value of the property
+  /// and the user agent.
+  /// (See below.)
+  ///
+  /// - block period
+  ///   - : The browser invisibly prepares a fallback font. If the font face loads during this time, it's used to display the text and display is complete.
+  /// - swap period
+  ///   - : If the font face is still not loaded, the fallback font will be shown.
+  /// When the font face loads, the fallback will be swapped for the downloaded
+  /// font.
+  /// - failure period
+  ///   - : If the font face still is not loaded, the fallback font will be shown and no swap will occur.
   external String get display;
-  external set ascentOverride(String value);
+  external set display(String value);
+
+  /// The **`ascentOverride`** property of the [FontFace] interface returns and
+  /// sets the ascent metric for the font, the height above the baseline that
+  /// CSS uses to lay out line boxes in an inline formatting context.
+  ///
+  /// This property is equivalent to the  descriptor of .
   external String get ascentOverride;
-  external set descentOverride(String value);
+  external set ascentOverride(String value);
+
+  /// The **`descentOverride`** property of the [FontFace] interface returns and
+  /// sets the value of the  descriptor.
+  /// The possible values are `normal`, indicating that the metric used should
+  /// be obtained from the font file, or a percentage.
   external String get descentOverride;
-  external set lineGapOverride(String value);
+  external set descentOverride(String value);
+
+  /// The **`lineGapOverride`** property of the [FontFace] interface returns and
+  /// sets the value of the  descriptor.
+  /// The possible values are `normal`, indicating that the metric used should
+  /// be obtained from the font file, or a percentage.
   external String get lineGapOverride;
+  external set lineGapOverride(String value);
+
+  /// The **`status`** read-only property of the [FontFace] interface returns an
+  /// enumerated value indicating the status of the font, one of `"unloaded"`,
+  /// `"loading"`, `"loaded"`, or `"error"`.
   external FontFaceLoadStatus get status;
+
+  /// The **`loaded`** read-only property of the [FontFace] interface returns a
+  /// `Promise` that resolves with the current `FontFace` object when the font
+  /// specified in the object's constructor is done loading or rejects with a
+  /// `SyntaxError`.
   external JSPromise<FontFace> get loaded;
   external FontFaceFeatures get features;
   external FontFaceVariations get variations;
@@ -138,8 +226,8 @@ extension type FontFaceSetLoadEventInit._(JSObject _)
     JSArray<FontFace> fontfaces,
   });
 
-  external set fontfaces(JSArray<FontFace> value);
   external JSArray<FontFace> get fontfaces;
+  external set fontfaces(JSArray<FontFace> value);
 }
 
 /// The **`FontFaceSetLoadEvent`** interface of the
@@ -164,6 +252,9 @@ extension type FontFaceSetLoadEvent._(JSObject _) implements Event, JSObject {
     FontFaceSetLoadEventInit eventInitDict,
   ]);
 
+  /// The **`fontfaces`** read-only property of the
+  /// [FontFaceSetLoadEvent] interface returns an array of
+  /// [FontFace] instances, each of which represents a single usable font.
   external JSArray<FontFace> get fontfaces;
 }
 
@@ -216,12 +307,22 @@ extension type FontFaceSet._(JSObject _) implements EventTarget, JSObject {
     String font, [
     String text,
   ]);
-  external set onloading(EventHandler value);
   external EventHandler get onloading;
-  external set onloadingdone(EventHandler value);
+  external set onloading(EventHandler value);
   external EventHandler get onloadingdone;
-  external set onloadingerror(EventHandler value);
+  external set onloadingdone(EventHandler value);
   external EventHandler get onloadingerror;
+  external set onloadingerror(EventHandler value);
+
+  /// The `ready` read-only property of the [FontFaceSet] interface returns a
+  /// `Promise` that resolves to the given [FontFaceSet].
+  ///
+  /// The promise will only resolve once the document has completed loading
+  /// fonts, layout operations are completed, and no further font loads are
+  /// needed.
   external JSPromise<FontFaceSet> get ready;
+
+  /// The **`status`** read-only property of the [FontFaceSet] interface returns
+  /// the loading state of the fonts in the set.
   external FontFaceSetLoadStatus get status;
 }
diff --git a/lib/src/dom/css_fonts.dart b/lib/src/dom/css_fonts.dart
index a889df27..833204e2 100644
--- a/lib/src/dom/css_fonts.dart
+++ b/lib/src/dom/css_fonts.dart
@@ -23,6 +23,10 @@ import 'cssom.dart';
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFaceRule).
 extension type CSSFontFaceRule._(JSObject _) implements CSSRule, JSObject {
+  /// The read-only **`style`** property of the [CSSFontFaceRule] interface
+  /// returns the style information from the
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule). This
+  /// will be in the form of a [CSSStyleDeclaration] object.
   external CSSStyleDeclaration get style;
 }
 
@@ -37,8 +41,10 @@ extension type CSSFontFaceRule._(JSObject _) implements CSSRule, JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFeatureValuesRule).
 extension type CSSFontFeatureValuesRule._(JSObject _)
     implements CSSRule, JSObject {
-  external set fontFamily(String value);
+  /// The **`fontFamily`** property of the [CSSConditionRule] interface
+  /// represents the name of the font family it applies to.
   external String get fontFamily;
+  external set fontFamily(String value);
   external CSSFontFeatureValuesMap get annotation;
   external CSSFontFeatureValuesMap get ornaments;
   external CSSFontFeatureValuesMap get stylistic;
@@ -62,8 +68,24 @@ extension type CSSFontFeatureValuesMap._(JSObject _) implements JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSFontPaletteValuesRule).
 extension type CSSFontPaletteValuesRule._(JSObject _)
     implements CSSRule, JSObject {
+  /// The read-only **`name`** property of the [CSSFontPaletteValuesRule]
+  /// interface represents the name identifying the associated  at-rule. A valid
+  /// name always starts with two dashes, such as `--Alternate`.
   external String get name;
+
+  /// The read-only **`fontFamily`** property of the [CSSFontPaletteValuesRule]
+  /// interface lists the font families the rule can be applied to. The font
+  /// families must be _named_ families; _generic_ families like `courier` are
+  /// not valid.
   external String get fontFamily;
+
+  /// The read-only **`basePalette`** property of the [CSSFontPaletteValuesRule]
+  /// interface indicates the base palette associated with the rule.
   external String get basePalette;
+
+  /// The read-only **`overrideColors`** property of the
+  /// [CSSFontPaletteValuesRule] interface is a string containing a list of
+  /// color index and color pair that are to be used instead. It is specified in
+  /// the same format as the corresponding  descriptor.
   external String get overrideColors;
 }
diff --git a/lib/src/dom/css_highlight_api.dart b/lib/src/dom/css_highlight_api.dart
index 26e0534f..4c04da8b 100644
--- a/lib/src/dom/css_highlight_api.dart
+++ b/lib/src/dom/css_highlight_api.dart
@@ -37,10 +37,42 @@ typedef HighlightType = String;
 extension type Highlight._(JSObject _) implements JSObject {
   external factory Highlight(AbstractRange initialRanges);
 
-  external set priority(int value);
+  /// It is possible to create [Range] objects that overlap in a document.
+  ///
+  /// When overlapping ranges are used by multiple different [Highlight]
+  /// objects, and when those highlights are styled using  pseudo-elements, this
+  /// may lead to conflicting styles.
+  ///
+  /// If two text ranges overlap and are both highlighted using the
+  /// [css_custom_highlight_api], and if they're both styled using the `color`
+  /// CSS property, the browser needs to decide which color should be used for
+  /// styling the text in the overlapping part.
+  ///
+  /// By default, all highlights have the same priority and the browser chooses
+  /// the most recently registered highlight to style the overlapping parts.
+  ///
+  /// The `priority` property of the [Highlight] interface is a `Number` used to
+  /// change this default behavior and determine which highlight's styles should
+  /// be used to resolve style conflicts in overlapping parts.
+  ///
+  /// Note that all the styles of a highlight are applied and the browser only
+  /// needs to resolve conflicts when the same CSS properties are used by
+  /// multiple overlapping highlights. The highlight style conflict resolution
+  /// also does not depend on the order in which the  pseudo-elements rules
+  /// appear in the source, or whether or not CSS properties are marked as
+  /// `!important`.
   external int get priority;
-  external set type(HighlightType value);
+  external set priority(int value);
+
+  /// The `type` property of the [Highlight] interface is an enumerated `String`
+  /// used to specify the meaning of the highlight. This allows assistive
+  /// technologies, such as screen readers, to include this meaning when
+  /// exposing the highlight to users.
+  ///
+  /// By default, a highlight object will have its type set to `highlight`, but
+  /// you can change it to `spelling-error` or `grammar-error`.
   external HighlightType get type;
+  external set type(HighlightType value);
 }
 
 /// The **`HighlightRegistry`** interface of the
diff --git a/lib/src/dom/css_masking.dart b/lib/src/dom/css_masking.dart
index 3a21e6fb..bf829eb9 100644
--- a/lib/src/dom/css_masking.dart
+++ b/lib/src/dom/css_masking.dart
@@ -32,7 +32,18 @@ extension type SVGClipPathElement._(JSObject _)
           'clipPath',
         );
 
+  /// The read-only **`clipPathUnits`** property of the [SVGClipPathElement]
+  /// interface reflects the `clipPathUnits` attribute of a  element which
+  /// defines the coordinate system to use for the content of the element.
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedEnumeration.baseVal] and
+  /// > [SVGAnimatedEnumeration.animVal].
   external SVGAnimatedEnumeration get clipPathUnits;
+
+  /// The read-only **`transform`** property of the [SVGClipPathElement]
+  /// interface reflects the `transform` attribute of a  element, that is a list
+  /// of transformations applied to the element.
   external SVGAnimatedTransformList get transform;
 }
 
@@ -51,10 +62,59 @@ extension type SVGMaskElement._(JSObject _) implements SVGElement, JSObject {
           'mask',
         );
 
+  /// The read-only **`maskUnits`** property of the [SVGMaskElement] interface
+  /// reflects the `maskUnits` attribute of a  element which defines the
+  /// coordinate system to use for the mask of the element.
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedEnumeration.baseVal] and
+  /// > [SVGAnimatedEnumeration.animVal].
   external SVGAnimatedEnumeration get maskUnits;
+
+  /// The read-only **`maskContentUnits`** property of the [SVGMaskElement]
+  /// interface reflects the `maskContentUnits` attribute. It indicates which
+  /// coordinate system to use for the contents of the  element.
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedEnumeration.baseVal] and
+  /// > [SVGAnimatedEnumeration.animVal].
   external SVGAnimatedEnumeration get maskContentUnits;
+
+  /// The read-only **`x`** property of the [SVGMaskElement] interface returns
+  /// an [SVGAnimatedLength] object containing the value of the `x` attribute of
+  /// the . It represents the x-axis coordinate of the _top-left_ corner of the
+  /// masking area.
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedLength.baseVal] and
+  /// > [SVGAnimatedLength.animVal].
   external SVGAnimatedLength get x;
+
+  /// The read-only **`y`** property of the [SVGMaskElement] interface returns
+  /// an [SVGAnimatedLength] object containing the value of the `y` attribute of
+  /// the . It represents the y-axis coordinate of the _top-left_ corner of the
+  /// masking area.
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedLength.baseVal] and
+  /// > [SVGAnimatedLength.animVal].
   external SVGAnimatedLength get y;
+
+  /// The read-only **`width`** property of the [SVGMaskElement] interface
+  /// returns an [SVGAnimatedLength] object containing the value of the `width`
+  /// attribute of the .
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedLength.baseVal] and
+  /// > [SVGAnimatedLength.animVal].
   external SVGAnimatedLength get width;
+
+  /// The read-only **`height`** property of the [SVGMaskElement] interface
+  /// returns an [SVGAnimatedLength] object containing the value of the `height`
+  /// attribute of the .
+  ///
+  /// > **Note:** Although this property is read-only, it is merely a container
+  /// > for two values you can modify, [SVGAnimatedLength.baseVal] and
+  /// > [SVGAnimatedLength.animVal].
   external SVGAnimatedLength get height;
 }
diff --git a/lib/src/dom/css_properties_values_api.dart b/lib/src/dom/css_properties_values_api.dart
index 7936413f..27d84142 100644
--- a/lib/src/dom/css_properties_values_api.dart
+++ b/lib/src/dom/css_properties_values_api.dart
@@ -23,14 +23,14 @@ extension type PropertyDefinition._(JSObject _) implements JSObject {
     String initialValue,
   });
 
-  external set name(String value);
   external String get name;
-  external set syntax(String value);
+  external set name(String value);
   external String get syntax;
-  external set inherits(bool value);
+  external set syntax(String value);
   external bool get inherits;
-  external set initialValue(String value);
+  external set inherits(bool value);
   external String get initialValue;
+  external set initialValue(String value);
 }
 
 /// The **`CSSPropertyRule`** interface of the
@@ -42,8 +42,26 @@ extension type PropertyDefinition._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSPropertyRule).
 extension type CSSPropertyRule._(JSObject _) implements CSSRule, JSObject {
+  /// The read-only **`name`** property of the [CSSPropertyRule] interface
+  /// represents the property name, this being the serialization of the name
+  /// given to the custom property in the  rule's prelude.
   external String get name;
+
+  /// The read-only **`syntax`** property of the [CSSPropertyRule] interface
+  /// returns the literal syntax of the custom property registration represented
+  /// by the  rule, controlling how the property's value is parsed at
+  /// computed-value time.
   external String get syntax;
+
+  /// The read-only **`inherits`** property of the [CSSPropertyRule] interface
+  /// returns the inherit flag of the custom property registration represented
+  /// by the  rule, a boolean describing whether or not the property inherits by
+  /// default.
   external bool get inherits;
+
+  /// The read-only **`initialValue`** nullable property of the
+  /// [CSSPropertyRule] interface returns the initial value of the custom
+  /// property registration represented by the  rule, controlling the property's
+  /// initial value.
   external String? get initialValue;
 }
diff --git a/lib/src/dom/css_transitions.dart b/lib/src/dom/css_transitions.dart
index b7554554..dca7a3bb 100644
--- a/lib/src/dom/css_transitions.dart
+++ b/lib/src/dom/css_transitions.dart
@@ -29,8 +29,25 @@ extension type TransitionEvent._(JSObject _) implements Event, JSObject {
     TransitionEventInit transitionEventInitDict,
   ]);
 
+  /// The **`propertyName`** read-only property of [TransitionEvent] objects is
+  /// a string containing the name of the CSS property associated with the
+  /// transition.
   external String get propertyName;
+
+  /// The **`TransitionEvent.elapsedTime`** read-only property is a
+  /// `float` giving the amount of time the animation has been running, in
+  /// seconds,
+  /// when this event fired. This value is not affected by the
+  /// property.
   external num get elapsedTime;
+
+  /// The **`TransitionEvent.pseudoElement`** read-only property is a
+  /// string, starting with `'::'`, containing the name of the
+  /// [pseudo-element](https://developer.mozilla.org/en-US/docs/Web/CSS/Pseudo-elements)
+  /// the animation runs on.
+  /// If the transition doesn't run on a pseudo-element but on the element, an
+  /// empty string:
+  /// `''``.`
   external String get pseudoElement;
 }
 extension type TransitionEventInit._(JSObject _)
@@ -44,10 +61,10 @@ extension type TransitionEventInit._(JSObject _)
     String pseudoElement,
   });
 
-  external set propertyName(String value);
   external String get propertyName;
-  external set elapsedTime(num value);
+  external set propertyName(String value);
   external num get elapsedTime;
-  external set pseudoElement(String value);
+  external set elapsedTime(num value);
   external String get pseudoElement;
+  external set pseudoElement(String value);
 }
diff --git a/lib/src/dom/css_transitions_2.dart b/lib/src/dom/css_transitions_2.dart
index 0e5e479a..43abb4d2 100644
--- a/lib/src/dom/css_transitions_2.dart
+++ b/lib/src/dom/css_transitions_2.dart
@@ -36,5 +36,9 @@ extension type CSSStartingStyleRule._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSTransition).
 extension type CSSTransition._(JSObject _) implements Animation, JSObject {
+  /// The **`transitionProperty`** property of the
+  /// [CSSTransition] interface returns the **expanded transition property
+  /// name** of the transition. This is the longhand CSS property for which the
+  /// transition was generated.
   external String get transitionProperty;
 }
diff --git a/lib/src/dom/css_typed_om.dart b/lib/src/dom/css_typed_om.dart
index cbe4db3c..61e6ac20 100644
--- a/lib/src/dom/css_typed_om.dart
+++ b/lib/src/dom/css_typed_om.dart
@@ -71,6 +71,10 @@ extension type StylePropertyMapReadOnly._(JSObject _) implements JSObject {
   /// [StylePropertyMapReadOnly] interface indicates whether the specified
   /// property is in the `StylePropertyMapReadOnly` object.
   external bool has(String property);
+
+  /// The **`size`** read-only property of the
+  /// [StylePropertyMapReadOnly] interface returns an unsigned long integer
+  /// containing the size of the `StylePropertyMapReadOnly` object.
   external int get size;
 }
 
@@ -126,6 +130,8 @@ extension type CSSUnparsedValue._(JSObject _)
     implements CSSStyleValue, JSObject {
   external factory CSSUnparsedValue(JSArray<CSSUnparsedSegment> members);
 
+  /// The **`length`** read-only property of the
+  /// [CSSUnparsedValue] interface returns the number of items in the object.
   external int get length;
 }
 
@@ -144,8 +150,18 @@ extension type CSSVariableReferenceValue._(JSObject _) implements JSObject {
     CSSUnparsedValue? fallback,
   ]);
 
-  external set variable(String value);
+  /// The **`variable`** property of the
+  /// [CSSVariableReferenceValue] interface returns the
+  /// [custom property name](https://developer.mozilla.org/en-US/docs/Web/CSS/--*)
+  /// of the
+  /// [CSSVariableReferenceValue].
   external String get variable;
+  external set variable(String value);
+
+  /// The **`fallback`** read-only property of the
+  /// [CSSVariableReferenceValue] interface returns the
+  /// [custom property fallback value](https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties#custom_property_fallback_values)
+  /// of the [CSSVariableReferenceValue].
   external CSSUnparsedValue? get fallback;
 }
 
@@ -164,8 +180,11 @@ extension type CSSKeywordValue._(JSObject _)
     implements CSSStyleValue, JSObject {
   external factory CSSKeywordValue(String value);
 
-  external set value(String value);
+  /// The **`value`** property of the
+  /// [CSSKeywordValue] interface returns or sets the value of the
+  /// `CSSKeywordValue`.
   external String get value;
+  external set value(String value);
 }
 extension type CSSNumericType._(JSObject _) implements JSObject {
   external factory CSSNumericType({
@@ -179,22 +198,22 @@ extension type CSSNumericType._(JSObject _) implements JSObject {
     CSSNumericBaseType percentHint,
   });
 
-  external set length(int value);
   external int get length;
-  external set angle(int value);
+  external set length(int value);
   external int get angle;
-  external set time(int value);
+  external set angle(int value);
   external int get time;
-  external set frequency(int value);
+  external set time(int value);
   external int get frequency;
-  external set resolution(int value);
+  external set frequency(int value);
   external int get resolution;
-  external set flex(int value);
+  external set resolution(int value);
   external int get flex;
-  external set percent(int value);
+  external set flex(int value);
   external int get percent;
-  external set percentHint(CSSNumericBaseType value);
+  external set percent(int value);
   external CSSNumericBaseType get percentHint;
+  external set percentHint(CSSNumericBaseType value);
 }
 
 /// The **`CSSNumericValue`** interface of the
@@ -282,8 +301,14 @@ extension type CSSUnitValue._(JSObject _) implements CSSNumericValue, JSObject {
     String unit,
   );
 
-  external set value(num value);
+  /// The **`CSSUnitValue.value`** property of the
+  /// [CSSUnitValue] interface returns a double indicating the number of units.
   external num get value;
+  external set value(num value);
+
+  /// The **`CSSUnitValue.unit`** read-only property
+  /// of the [CSSUnitValue] interface returns a string
+  /// indicating the type of unit.
   external String get unit;
 }
 
@@ -295,6 +320,11 @@ extension type CSSUnitValue._(JSObject _) implements CSSNumericValue, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSMathValue).
 extension type CSSMathValue._(JSObject _) implements CSSNumericValue, JSObject {
+  /// The **`CSSMathValue.operator`** read-only
+  /// property of the [CSSMathValue] interface indicates the operator that the
+  /// current subtype represents. For example, if the current `CSSMathValue`
+  /// subtype is `CSSMathSum`, this property will return the string
+  /// `"sum"`.
   external CSSMathOperator get operator;
 }
 
@@ -314,6 +344,9 @@ extension type CSSMathValue._(JSObject _) implements CSSNumericValue, JSObject {
 extension type CSSMathSum._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathSum(CSSNumberish args);
 
+  /// The **`CSSMathSum.values`** read-only property
+  /// of the [CSSMathSum] interface returns a [CSSNumericArray]
+  /// object which contains one or more [CSSNumericValue] objects.
   external CSSNumericArray get values;
 }
 
@@ -329,6 +362,10 @@ extension type CSSMathSum._(JSObject _) implements CSSMathValue, JSObject {
 extension type CSSMathProduct._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathProduct(CSSNumberish args);
 
+  /// The **`CSSMathProduct.values`** read-only
+  /// property of the [CSSMathProduct] interface returns a
+  /// [CSSNumericArray] object which contains one or more
+  /// [CSSNumericValue] objects.
   external CSSNumericArray get values;
 }
 
@@ -342,6 +379,8 @@ extension type CSSMathProduct._(JSObject _) implements CSSMathValue, JSObject {
 extension type CSSMathNegate._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathNegate(CSSNumberish arg);
 
+  /// The CSSMathNegate.value read-only property of the
+  /// [CSSMathNegate] interface returns a [CSSNumericValue] object.
   external CSSNumericValue get value;
 }
 
@@ -356,6 +395,8 @@ extension type CSSMathNegate._(JSObject _) implements CSSMathValue, JSObject {
 extension type CSSMathInvert._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathInvert(CSSNumberish arg);
 
+  /// The CSSMathInvert.value read-only property of the
+  /// [CSSMathInvert] interface returns a [CSSNumericValue] object.
   external CSSNumericValue get value;
 }
 
@@ -369,6 +410,9 @@ extension type CSSMathInvert._(JSObject _) implements CSSMathValue, JSObject {
 extension type CSSMathMin._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathMin(CSSNumberish args);
 
+  /// The CSSMathMin.values read-only property of the
+  /// [CSSMathMin] interface returns a [CSSNumericArray] object
+  /// which contains one or more [CSSNumericValue] objects.
   external CSSNumericArray get values;
 }
 
@@ -382,6 +426,9 @@ extension type CSSMathMin._(JSObject _) implements CSSMathValue, JSObject {
 extension type CSSMathMax._(JSObject _) implements CSSMathValue, JSObject {
   external factory CSSMathMax(CSSNumberish args);
 
+  /// The CSSMathMax.values read-only property of the
+  /// [CSSMathMax] interface returns a [CSSNumericArray] object
+  /// which contains one or more [CSSNumericValue] objects.
   external CSSNumericArray get values;
 }
 extension type CSSMathClamp._(JSObject _) implements CSSMathValue, JSObject {
@@ -404,6 +451,9 @@ extension type CSSMathClamp._(JSObject _) implements CSSMathValue, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSNumericArray).
 extension type CSSNumericArray._(JSObject _) implements JSObject {
+  /// The read-only **`length`** property of the
+  /// [CSSNumericArray] interface returns the number of
+  /// [CSSNumericValue] objects in the list.
   external int get length;
 }
 
@@ -421,7 +471,20 @@ extension type CSSTransformValue._(JSObject _)
   /// The **`toMatrix()`** method of the
   /// [CSSTransformValue] interface returns a [DOMMatrix] object.
   external DOMMatrix toMatrix();
+
+  /// The read-only **`length`** property of the
+  /// [CSSTransformValue] interface returns the number of transform components
+  /// in
+  /// the list.
   external int get length;
+
+  /// The read-only **`is2D`** property of the
+  /// [CSSTransformValue] interface returns whether the transform is 2D or 3D.
+  ///
+  /// In the case of the `CSSTransformValue` this property returns
+  /// true unless any of the individual functions return false for `Is2D`, in
+  /// which
+  /// case it returns false.
   external bool get is2D;
 }
 
@@ -447,8 +510,11 @@ extension type CSSTransformComponent._(JSObject _) implements JSObject {
   /// > found in
   /// > [Using CSS transforms](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_transforms/Using_CSS_transforms).
   external DOMMatrix toMatrix();
-  external set is2D(bool value);
+
+  /// The **`is2D`** read-only property of the [CSSTransformComponent] interface
+  /// indicates where the transform is 2D or 3D.
   external bool get is2D;
+  external set is2D(bool value);
 }
 
 /// The **`CSSTranslate`** interface of the  represents the
@@ -468,12 +534,29 @@ extension type CSSTranslate._(JSObject _)
     CSSNumericValue z,
   ]);
 
-  external set x(CSSNumericValue value);
+  /// The **`x`** property of the
+  /// [CSSTranslate] interface gets and sets the abscissa or x-axis of the
+  /// translating vector.
   external CSSNumericValue get x;
-  external set y(CSSNumericValue value);
+  external set x(CSSNumericValue value);
+
+  /// The **`y`** property of the
+  /// [CSSTranslate] interface gets and sets the ordinate or y-axis of the
+  /// translating vector.
   external CSSNumericValue get y;
-  external set z(CSSNumericValue value);
+  external set y(CSSNumericValue value);
+
+  /// The **`z`** property of the
+  /// [CSSTranslate] interface representing the z-component of the translating
+  /// vector. A positive value moves the element towards the viewer, and a
+  /// negative value
+  /// farther away.
+  ///
+  /// If this value is present then the transform is a 3D transform and the
+  /// `is2D`
+  /// property will be set to false.
   external CSSNumericValue get z;
+  external set z(CSSNumericValue value);
 }
 
 /// The **`CSSRotate`** interface of the  represents the rotate value of the
@@ -493,14 +576,32 @@ extension type CSSRotate._(JSObject _)
     CSSNumericValue angle,
   ]);
 
-  external set x(CSSNumberish value);
+  /// The **`x`** property of the
+  /// [CSSRotate] interface gets and sets the abscissa or x-axis of the
+  /// translating vector.
   external CSSNumberish get x;
-  external set y(CSSNumberish value);
+  external set x(CSSNumberish value);
+
+  /// The **`y`** property of the
+  /// [CSSRotate] interface gets and sets the ordinate or y-axis of the
+  /// translating vector.
   external CSSNumberish get y;
-  external set z(CSSNumberish value);
+  external set y(CSSNumberish value);
+
+  /// The **`z`** property of the
+  /// [CSSRotate] interface representing the z-component of the translating
+  /// vector. A positive value moves the element towards the viewer, and a
+  /// negative value
+  /// farther away.
   external CSSNumberish get z;
-  external set angle(CSSNumericValue value);
+  external set z(CSSNumberish value);
+
+  /// The **`angle`** property of the
+  /// [CSSRotate] interface gets and sets the angle of rotation. A positive
+  /// angle
+  /// denotes a clockwise rotation, a negative angle a counter-clockwise one.
   external CSSNumericValue get angle;
+  external set angle(CSSNumericValue value);
 }
 
 /// The **`CSSScale`** interface of the  represents the
@@ -522,12 +623,29 @@ extension type CSSScale._(JSObject _)
     CSSNumberish z,
   ]);
 
-  external set x(CSSNumberish value);
+  /// The **`x`** property of the
+  /// [CSSScale] interface gets and sets the abscissa or x-axis of the
+  /// translating vector.
   external CSSNumberish get x;
-  external set y(CSSNumberish value);
+  external set x(CSSNumberish value);
+
+  /// The **`y`** property of the
+  /// [CSSScale] interface gets and sets the ordinate or y-axis of the
+  /// translating vector.
   external CSSNumberish get y;
-  external set z(CSSNumberish value);
+  external set y(CSSNumberish value);
+
+  /// The **`z`** property of the
+  /// [CSSScale] interface representing the z-component of the translating
+  /// vector. A positive value moves the element towards the viewer, and a
+  /// negative value
+  /// farther away.
+  ///
+  /// If this value is present then the transform is a 3D transform and the
+  /// `is2D`
+  /// property will be set to false.
   external CSSNumberish get z;
+  external set z(CSSNumberish value);
 }
 
 /// The **`CSSSkew`** interface of the  is part of the [CSSTransformValue]
@@ -546,10 +664,17 @@ extension type CSSSkew._(JSObject _)
     CSSNumericValue ay,
   );
 
-  external set ax(CSSNumericValue value);
+  /// The **`ax`** property of the
+  /// [CSSSkew] interface gets and sets the angle used to distort the element
+  /// along the x-axis (or abscissa).
   external CSSNumericValue get ax;
-  external set ay(CSSNumericValue value);
+  external set ax(CSSNumericValue value);
+
+  /// The **`ay`** property of the
+  /// [CSSSkew] interface gets and sets the angle used to distort the element
+  /// along the y-axis (or ordinate).
   external CSSNumericValue get ay;
+  external set ay(CSSNumericValue value);
 }
 
 /// The **`CSSSkewX`** interface of the  represents the
@@ -565,8 +690,11 @@ extension type CSSSkewX._(JSObject _)
     implements CSSTransformComponent, JSObject {
   external factory CSSSkewX(CSSNumericValue ax);
 
-  external set ax(CSSNumericValue value);
+  /// The **`ax`** property of the
+  /// [CSSSkewX] interface gets and sets the angle used to distort the element
+  /// along the x-axis (or abscissa).
   external CSSNumericValue get ax;
+  external set ax(CSSNumericValue value);
 }
 
 /// The **`CSSSkewY`** interface of the  represents the
@@ -582,8 +710,11 @@ extension type CSSSkewY._(JSObject _)
     implements CSSTransformComponent, JSObject {
   external factory CSSSkewY(CSSNumericValue ay);
 
-  external set ay(CSSNumericValue value);
+  /// The **`ay`** property of the
+  /// [CSSSkewY] interface gets and sets the angle used to distort the element
+  /// along the y-axis (or ordinate).
   external CSSNumericValue get ay;
+  external set ay(CSSNumericValue value);
 }
 
 /// The **`CSSPerspective`** interface of the  represents the
@@ -599,8 +730,14 @@ extension type CSSPerspective._(JSObject _)
     implements CSSTransformComponent, JSObject {
   external factory CSSPerspective(CSSPerspectiveValue length);
 
-  external set length(CSSPerspectiveValue value);
+  /// The **`length`** property of the
+  /// [CSSPerspective] interface sets the distance from z=0.
+  ///
+  /// It is used to apply a perspective transform to the element and its
+  /// content. If the
+  /// value is 0 or a negative number, no perspective transform is applied.
   external CSSPerspectiveValue get length;
+  external set length(CSSPerspectiveValue value);
 }
 
 /// The **`CSSMatrixComponent`** interface of the  represents the
@@ -621,14 +758,23 @@ extension type CSSMatrixComponent._(JSObject _)
     CSSMatrixComponentOptions options,
   ]);
 
-  external set matrix(DOMMatrix value);
+  /// The **`matrix`** property of the
+  /// [CSSMatrixComponent] interface gets and sets a 2d or 3d matrix.
+  ///
+  /// See the
+  /// [matrix()](https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/matrix)
+  /// and
+  /// [matrix3d()](https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/matrix3d)
+  /// pages for
+  /// examples.
   external DOMMatrix get matrix;
+  external set matrix(DOMMatrix value);
 }
 extension type CSSMatrixComponentOptions._(JSObject _) implements JSObject {
   external factory CSSMatrixComponentOptions({bool is2D});
 
-  external set is2D(bool value);
   external bool get is2D;
+  external set is2D(bool value);
 }
 
 /// The **`CSSImageValue`** interface of the
@@ -659,14 +805,14 @@ extension type CSSRGB._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set r(CSSColorRGBComp value);
   external CSSColorRGBComp get r;
-  external set g(CSSColorRGBComp value);
+  external set r(CSSColorRGBComp value);
   external CSSColorRGBComp get g;
-  external set b(CSSColorRGBComp value);
+  external set g(CSSColorRGBComp value);
   external CSSColorRGBComp get b;
-  external set alpha(CSSColorPercent value);
+  external set b(CSSColorRGBComp value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSHSL._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSHSL(
@@ -676,14 +822,14 @@ extension type CSSHSL._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set h(CSSColorAngle value);
   external CSSColorAngle get h;
-  external set s(CSSColorPercent value);
+  external set h(CSSColorAngle value);
   external CSSColorPercent get s;
-  external set l(CSSColorPercent value);
+  external set s(CSSColorPercent value);
   external CSSColorPercent get l;
-  external set alpha(CSSColorPercent value);
+  external set l(CSSColorPercent value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSHWB._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSHWB(
@@ -693,14 +839,14 @@ extension type CSSHWB._(JSObject _) implements CSSColorValue, JSObject {
     CSSNumberish alpha,
   ]);
 
-  external set h(CSSNumericValue value);
   external CSSNumericValue get h;
-  external set w(CSSNumberish value);
+  external set h(CSSNumericValue value);
   external CSSNumberish get w;
-  external set b(CSSNumberish value);
+  external set w(CSSNumberish value);
   external CSSNumberish get b;
-  external set alpha(CSSNumberish value);
+  external set b(CSSNumberish value);
   external CSSNumberish get alpha;
+  external set alpha(CSSNumberish value);
 }
 extension type CSSLab._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSLab(
@@ -710,14 +856,14 @@ extension type CSSLab._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set l(CSSColorPercent value);
   external CSSColorPercent get l;
-  external set a(CSSColorNumber value);
+  external set l(CSSColorPercent value);
   external CSSColorNumber get a;
-  external set b(CSSColorNumber value);
+  external set a(CSSColorNumber value);
   external CSSColorNumber get b;
-  external set alpha(CSSColorPercent value);
+  external set b(CSSColorNumber value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSLCH._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSLCH(
@@ -727,14 +873,14 @@ extension type CSSLCH._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set l(CSSColorPercent value);
   external CSSColorPercent get l;
-  external set c(CSSColorPercent value);
+  external set l(CSSColorPercent value);
   external CSSColorPercent get c;
-  external set h(CSSColorAngle value);
+  external set c(CSSColorPercent value);
   external CSSColorAngle get h;
-  external set alpha(CSSColorPercent value);
+  external set h(CSSColorAngle value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSOKLab._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSOKLab(
@@ -744,14 +890,14 @@ extension type CSSOKLab._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set l(CSSColorPercent value);
   external CSSColorPercent get l;
-  external set a(CSSColorNumber value);
+  external set l(CSSColorPercent value);
   external CSSColorNumber get a;
-  external set b(CSSColorNumber value);
+  external set a(CSSColorNumber value);
   external CSSColorNumber get b;
-  external set alpha(CSSColorPercent value);
+  external set b(CSSColorNumber value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSOKLCH._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSOKLCH(
@@ -761,14 +907,14 @@ extension type CSSOKLCH._(JSObject _) implements CSSColorValue, JSObject {
     CSSColorPercent alpha,
   ]);
 
-  external set l(CSSColorPercent value);
   external CSSColorPercent get l;
-  external set c(CSSColorPercent value);
+  external set l(CSSColorPercent value);
   external CSSColorPercent get c;
-  external set h(CSSColorAngle value);
+  external set c(CSSColorPercent value);
   external CSSColorAngle get h;
-  external set alpha(CSSColorPercent value);
+  external set h(CSSColorAngle value);
   external CSSColorPercent get alpha;
+  external set alpha(CSSColorPercent value);
 }
 extension type CSSColor._(JSObject _) implements CSSColorValue, JSObject {
   external factory CSSColor(
@@ -777,10 +923,10 @@ extension type CSSColor._(JSObject _) implements CSSColorValue, JSObject {
     CSSNumberish alpha,
   ]);
 
-  external set colorSpace(CSSKeywordish value);
   external CSSKeywordish get colorSpace;
-  external set channels(JSArray<CSSColorPercent> value);
+  external set colorSpace(CSSKeywordish value);
   external JSArray<CSSColorPercent> get channels;
-  external set alpha(CSSNumberish value);
+  external set channels(JSArray<CSSColorPercent> value);
   external CSSNumberish get alpha;
+  external set alpha(CSSNumberish value);
 }
diff --git a/lib/src/dom/css_view_transitions.dart b/lib/src/dom/css_view_transitions.dart
index 0f37ffbf..19ffa14d 100644
--- a/lib/src/dom/css_view_transitions.dart
+++ b/lib/src/dom/css_view_transitions.dart
@@ -36,7 +36,38 @@ extension type ViewTransition._(JSObject _) implements JSObject {
   /// transition, but doesn't skip running the [Document.startViewTransition]
   /// callback that updates the DOM.
   external void skipTransition();
+
+  /// The **`updateCallbackDone`** read-only property of the
+  /// [ViewTransition] interface is a `Promise` that fulfills when the promise
+  /// returned by the [Document.startViewTransition]'s callback fulfills, or
+  /// rejects when it rejects.
+  ///
+  /// `updateCallbackDone` is useful when you don't care about the
+  /// success/failure of the transition animation, and just want to know if and
+  /// when the DOM is updated.
   external JSPromise<JSAny?> get updateCallbackDone;
+
+  /// The **`ready`** read-only property of the
+  /// [ViewTransition] interface is a `Promise` that fulfills once the
+  /// pseudo-element tree is created and the transition animation is about to
+  /// start.
+  ///
+  /// `ready` will reject if the transition cannot begin. This can be due to
+  /// misconfiguration, for example duplicate s, or if the callback passed to
+  /// [Document.startViewTransition] throws or returns a promise that rejects.
   external JSPromise<JSAny?> get ready;
+
+  /// The **`finished`** read-only property of the
+  /// [ViewTransition] interface is a `Promise` that fulfills once the
+  /// transition animation is finished, and the new page view is visible and
+  /// interactive to the user.
+  ///
+  /// `finished` only rejects if the callback passed to
+  /// [Document.startViewTransition]throws or returns a promise that rejects,
+  /// which indicates that the new state of the page wasn't created.
+  ///
+  /// If a transition animation fails to start, or is skipped during the
+  /// animation using [ViewTransition.skipTransition], the end state is still
+  /// reached therefore `finished` still fulfills.
   external JSPromise<JSAny?> get finished;
 }
diff --git a/lib/src/dom/cssom.dart b/lib/src/dom/cssom.dart
index bc9f7af2..00be0949 100644
--- a/lib/src/dom/cssom.dart
+++ b/lib/src/dom/cssom.dart
@@ -42,8 +42,15 @@ extension type MediaList._(JSObject _) implements JSObject {
   /// The `deleteMedium()` method of the [MediaList] interface removes from this
   /// `MediaList` the given media query.
   external void deleteMedium(String medium);
-  external set mediaText(String value);
+
+  /// The **`mediaText`** property of the [MediaList]
+  /// interface is a  that returns a string representing the
+  /// `MediaList` as text, and also allows you to set a new `MediaList`.
   external String get mediaText;
+  external set mediaText(String value);
+
+  /// The read-only **`length`** property of the [MediaList] interface returns
+  /// the number of media queries in the list.
   external int get length;
 }
 
@@ -56,14 +63,60 @@ extension type MediaList._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/StyleSheet).
 extension type StyleSheet._(JSObject _) implements JSObject {
+  /// The **`type`** property of the [StyleSheet]
+  /// interface specifies the style sheet language for the given style sheet.
   external String get type;
+
+  /// The **`href`** property of the [StyleSheet]
+  /// interface returns the location of the style sheet.
+  ///
+  /// This property is read-only.
   external String? get href;
+
+  /// The **`ownerNode`** property of the
+  /// [StyleSheet] interface returns the node that associates this style sheet
+  /// with the document.
+  ///
+  /// This is usually an HTML
+  /// [`<link>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link)
+  /// or
+  /// [`<style>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/style)
+  /// element, but
+  /// can also return a
+  /// [processing instruction node](https://developer.mozilla.org/en-US/docs/Web/API/ProcessingInstruction)
+  /// in the case of `<?xml-stylesheet ?>`.
   external JSObject? get ownerNode;
+
+  /// The **`parentStyleSheet`** property of the
+  /// [StyleSheet] interface returns the style sheet, if any, that is including
+  /// the given style sheet.
   external CSSStyleSheet? get parentStyleSheet;
+
+  /// The **`title`** property of the [StyleSheet] interface returns the
+  /// advisory title of the current style sheet.
+  ///
+  /// The title is often specified in the [StyleSheet.OwnerNode].
   external String? get title;
+
+  /// The **`media`** property of the [StyleSheet] interface specifies the
+  /// intended destination media for style information. It is a read-only,
+  /// array-like `MediaList` object and can be removed with `deleteMedium()` and
+  /// added with `appendMedium()`.
   external MediaList get media;
-  external set disabled(bool value);
+
+  /// The **`disabled`** property of the
+  /// [StyleSheet] interface determines whether the style sheet is prevented
+  /// from
+  /// applying to the document.
+  ///
+  /// A style sheet may be disabled by manually setting this property to `true`
+  /// or
+  /// if it's an inactive
+  /// [alternative style sheet](https://developer.mozilla.org/en-US/docs/Web/CSS/Alternative_style_sheets).
+  /// Note that `disabled === false` does not guarantee the style
+  /// sheet is applied (it could be removed from the document, for instance).
   external bool get disabled;
+  external set disabled(bool value);
 }
 
 /// The **`CSSStyleSheet`** interface represents a single
@@ -160,8 +213,33 @@ extension type CSSStyleSheet._(JSObject _) implements StyleSheet, JSObject {
   /// > the standard method [CSSStyleSheet.deleteRule]. You
   /// > should use that instead.
   external void removeRule([int index]);
+
+  /// The read-only [CSSStyleSheet] property
+  /// **`ownerRule`** returns the [CSSImportRule]
+  /// corresponding to the  at-rule which imported the stylesheet into
+  /// the document. If the stylesheet wasn't imported into the document using
+  /// `@import`, the returned value is `null`.
   external CSSRule? get ownerRule;
+
+  /// The read-only [CSSStyleSheet] property
+  /// **`cssRules`** returns a live [CSSRuleList] which
+  /// provides a real-time, up-to-date list of every CSS rule which comprises
+  /// the
+  /// stylesheet. Each item in the list is a [CSSRule] defining a single
+  /// rule.
   external CSSRuleList get cssRules;
+
+  /// **`rules`** is a _deprecated_
+  /// _legacy property_ of the [CSSStyleSheet] interface. Functionally
+  /// identical to the preferred [CSSStyleSheet.cssRules] property,
+  /// it provides access to a live-updating list of the CSS rules comprising the
+  /// stylesheet.
+  ///
+  /// > **Note:** As a legacy property, you should not use `rules` and
+  /// > should instead use the preferred [CSSStyleSheet.cssRules].
+  /// > While `rules` is unlikely to be removed soon, its availability is not as
+  /// > widespread and using it will result in compatibility problems for your
+  /// > site or app.
   external CSSRuleList get rules;
 }
 extension type CSSStyleSheetInit._(JSObject _) implements JSObject {
@@ -171,12 +249,12 @@ extension type CSSStyleSheetInit._(JSObject _) implements JSObject {
     bool disabled,
   });
 
-  external set baseURL(String value);
   external String get baseURL;
-  external set media(JSAny value);
+  external set baseURL(String value);
   external JSAny get media;
-  external set disabled(bool value);
+  external set media(JSAny value);
   external bool get disabled;
+  external set disabled(bool value);
 }
 
 /// The `StyleSheetList` interface represents a list of [CSSStyleSheet] objects.
@@ -202,6 +280,9 @@ extension type StyleSheetList._(JSObject _) implements JSObject {
   /// The **`item()`** method of the [StyleSheetList] interface returns a single
   /// [CSSStyleSheet] object.
   external CSSStyleSheet? item(int index);
+
+  /// The **`length`** read-only property of the [StyleSheetList] interface
+  /// returns the number of [CSSStyleSheet] objects in the collection.
   external int get length;
 }
 
@@ -236,6 +317,9 @@ extension type CSSRuleList._(JSObject _) implements JSObject {
   /// [CSSRule] object at the specified `index` or `null` if the specified
   /// `index` doesn't exist.
   external CSSRule? item(int index);
+
+  /// The **`length`** property of the [CSSRuleList] interface returns the
+  /// number of [CSSRule] objects in the list.
   external int get length;
 }
 
@@ -277,10 +361,56 @@ extension type CSSRule._(JSObject _) implements JSObject {
   external static int get PAGE_RULE;
   external static int get MARGIN_RULE;
   external static int get NAMESPACE_RULE;
-  external set cssText(String value);
+
+  /// The **`cssText`** property of the [CSSRule]
+  /// interface returns the actual text of a [CSSStyleSheet] style-rule.
+  ///
+  /// > **Note:** Do not confuse this property with element-style
+  /// > [CSSStyleDeclaration.cssText].
+  ///
+  /// Be aware that this property can no longer be set directly, as it is
+  /// [now specified](https://www.w3.org/TR/cssom-1/#changes-from-5-december-2013)
+  /// to be _functionally_ modify-only, and silently so. In other words,
+  /// attempting to
+  /// set it _does absolutely nothing_, and doesn't even omit a warning or
+  /// error.
+  /// Furthermore, it has no settable sub-properties. Therefore, to modify it,
+  /// use the
+  /// stylesheet's [CSSRuleList]`[index]` properties
+  /// [CSSStyleRule.selectorText] and
+  /// [CSSStyleRule.style] (or its sub-properties). See
+  /// [Using dynamic styling information](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Object_Model/Using_dynamic_styling_information)
+  /// for details.
   external String get cssText;
+  external set cssText(String value);
+
+  /// The **`parentRule`** property of the [CSSRule]
+  /// interface returns the containing rule of the current rule if this exists,
+  /// or otherwise
+  /// returns null.
   external CSSRule? get parentRule;
+
+  /// The **`parentStyleSheet`** property of the
+  /// [CSSRule] interface returns the [StyleSheet] object in which
+  /// the current rule is defined.
   external CSSStyleSheet? get parentStyleSheet;
+
+  /// The read-only **`type`** property of the
+  /// [CSSRule] interface is a deprecated property that returns an integer
+  /// indicating which type of rule the [CSSRule] represents.
+  ///
+  /// If you need to distinguish different types of CSS rule, a good alternative
+  /// is to use
+  /// [`constructor.name`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name):
+  ///
+  /// ```js
+  /// const sheets = Array.from(document.styleSheets);
+  /// const rules = sheets.map((sheet) => Array.from(sheet.cssRules)).flat();
+  ///
+  /// for (const rule of rules) {
+  ///   console.log(rule.constructor.name);
+  /// }
+  /// ```
   external int get type;
 }
 
@@ -291,9 +421,20 @@ extension type CSSRule._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleRule).
 extension type CSSStyleRule._(JSObject _) implements CSSGroupingRule, JSObject {
+  /// The **`styleMap`** read-only property of the
+  /// [CSSStyleRule] interface returns a [StylePropertyMap] object
+  /// which provides access to the rule's property-value pairs.
   external StylePropertyMap get styleMap;
-  external set selectorText(String value);
+
+  /// The **`selectorText`** property of the [CSSStyleRule] interface gets and
+  /// sets the selectors associated with the `CSSStyleRule`.
   external String get selectorText;
+  external set selectorText(String value);
+
+  /// The read-only **`style`** property is the [CSSStyleDeclaration] interface
+  /// for the
+  /// [declaration block](https://www.w3.org/TR/1998/REC-CSS2-19980512/syndata.html#block)
+  /// of the [CSSStyleRule].
   external CSSStyleDeclaration get style;
 }
 
@@ -305,10 +446,45 @@ extension type CSSStyleRule._(JSObject _) implements CSSGroupingRule, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSImportRule).
 extension type CSSImportRule._(JSObject _) implements CSSRule, JSObject {
+  /// The read-only **`href`** property of the
+  /// [CSSImportRule] interface returns the URL specified by the
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule).
+  ///
+  /// The resolved URL will be the
+  /// [`href`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#href)
+  /// attribute of the
+  /// associated stylesheet.
   external String get href;
+
+  /// The read-only **`media`** property of the
+  /// [CSSImportRule] interface returns a [MediaList] object,
+  /// containing the value of the `media` attribute of the associated
+  /// stylesheet.
   external MediaList get media;
+
+  /// The read-only **`styleSheet`** property of the
+  /// [CSSImportRule] interface returns the CSS Stylesheet specified by the
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule). This
+  /// will be
+  /// in the form of a [CSSStyleSheet] object.
+  ///
+  /// An  [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule)
+  /// always has
+  /// an associated stylesheet.
   external CSSStyleSheet? get styleSheet;
+
+  /// The read-only **`layerName`** property of the [CSSImportRule] interface
+  /// returns the name of the cascade layer created by the
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule).
+  ///
+  /// If the created layer is anonymous, the string is empty (`""`), if no layer
+  /// has been
+  /// created, it is the `null` object.
   external String? get layerName;
+
+  /// The read-only **`supportsText`** property of the [CSSImportRule] interface
+  /// returns the supports condition specified by the
+  /// [at-rule](https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule).
   external String? get supportsText;
 }
 
@@ -334,6 +510,10 @@ extension type CSSGroupingRule._(JSObject _) implements CSSRule, JSObject {
   /// [CSSGroupingRule] interface removes a CSS rule from a list of child CSS
   /// rules.
   external void deleteRule(int index);
+
+  /// The **`cssRules`** property of the
+  /// [CSSGroupingRule] interface returns a [CSSRuleList] containing
+  /// a collection of [CSSRule] objects.
   external CSSRuleList get cssRules;
 }
 
@@ -344,8 +524,16 @@ extension type CSSGroupingRule._(JSObject _) implements CSSRule, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSPageRule).
 extension type CSSPageRule._(JSObject _) implements CSSGroupingRule, JSObject {
-  external set selectorText(String value);
+  /// The **`selectorText`** property of the [CSSPageRule] interface gets and
+  /// sets the selectors associated with the `CSSPageRule`.
   external String get selectorText;
+  external set selectorText(String value);
+
+  /// The **`style`** read-only property of the [CSSPageRule] interface returns
+  /// a [CSSStyleDeclaration] object. This represents an object that is a
+  /// [CSS declaration block](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Object_Model/CSS_Declaration_Block),
+  /// and exposes style information and various style-related methods and
+  /// properties.
   external CSSStyleDeclaration get style;
 }
 extension type CSSMarginRule._(JSObject _) implements CSSRule, JSObject {
@@ -362,7 +550,13 @@ extension type CSSMarginRule._(JSObject _) implements CSSRule, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CSSNamespaceRule).
 extension type CSSNamespaceRule._(JSObject _) implements CSSRule, JSObject {
+  /// The read-only **`namespaceURI`** property of the [CSSNamespaceRule]
+  /// returns a string containing the text of the URI of the given namespace.
   external String get namespaceURI;
+
+  /// The read-only **`prefix`** property of the [CSSNamespaceRule] returns a
+  /// string with the name of the prefix associated to this namespace. If there
+  /// is no such prefix, it returns an empty string.
   external String get prefix;
 }
 
@@ -416,1278 +610,1302 @@ extension type CSSStyleDeclaration._(JSObject _) implements JSObject {
   /// The **`CSSStyleDeclaration.removeProperty()`** method interface
   /// removes a property from a CSS style declaration object.
   external String removeProperty(String property);
-  external set cssText(String value);
+
+  /// The **`cssText`** property of the [CSSStyleDeclaration] interface returns
+  /// or sets the text of the element's **inline** style declaration only.
+  ///
+  /// To be able to set a **stylesheet** rule dynamically, see
+  /// [Using dynamic styling information](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Object_Model/Using_dynamic_styling_information).
+  ///
+  /// Not to be confused with stylesheet style-rule [CSSRule.cssText].
   external String get cssText;
+  external set cssText(String value);
+
+  /// The read-only property returns an integer that represents the
+  /// number of style declarations in this CSS declaration block.
   external int get length;
+
+  /// The **CSSStyleDeclaration.parentRule** read-only
+  /// property returns a [CSSRule] that is the parent of this style
+  /// block, e.g. a [CSSStyleRule] representing the style for a CSS
+  /// selector.
   external CSSRule? get parentRule;
-  external set cssFloat(String value);
+
+  /// The **`cssFloat`** property of the [CSSStyleDeclaration] interface returns
+  /// the result of invoking [CSSStyleDeclaration.getPropertyValue] with `float`
+  /// as an argument.
+  ///
+  /// When setting, it invokes [CSSStyleDeclaration.setProperty] with `float` as
+  /// the first argument, and the given value as the second argument. The given
+  /// value must be a valid value for the `float` property.
   external String get cssFloat;
-  external set accentColor(String value);
+  external set cssFloat(String value);
   external String get accentColor;
-  external set alignContent(String value);
+  external set accentColor(String value);
   external String get alignContent;
-  external set alignItems(String value);
+  external set alignContent(String value);
   external String get alignItems;
-  external set alignSelf(String value);
+  external set alignItems(String value);
   external String get alignSelf;
-  external set alignmentBaseline(String value);
+  external set alignSelf(String value);
   external String get alignmentBaseline;
-  external set all(String value);
+  external set alignmentBaseline(String value);
   external String get all;
-  external set anchorDefault(String value);
+  external set all(String value);
   external String get anchorDefault;
-  external set anchorName(String value);
+  external set anchorDefault(String value);
   external String get anchorName;
-  external set animation(String value);
+  external set anchorName(String value);
   external String get animation;
-  external set animationComposition(String value);
+  external set animation(String value);
   external String get animationComposition;
-  external set animationDelay(String value);
+  external set animationComposition(String value);
   external String get animationDelay;
-  external set animationDirection(String value);
+  external set animationDelay(String value);
   external String get animationDirection;
-  external set animationDuration(String value);
+  external set animationDirection(String value);
   external String get animationDuration;
-  external set animationFillMode(String value);
+  external set animationDuration(String value);
   external String get animationFillMode;
-  external set animationIterationCount(String value);
+  external set animationFillMode(String value);
   external String get animationIterationCount;
-  external set animationName(String value);
+  external set animationIterationCount(String value);
   external String get animationName;
-  external set animationPlayState(String value);
+  external set animationName(String value);
   external String get animationPlayState;
-  external set animationRange(String value);
+  external set animationPlayState(String value);
   external String get animationRange;
-  external set animationRangeEnd(String value);
+  external set animationRange(String value);
   external String get animationRangeEnd;
-  external set animationRangeStart(String value);
+  external set animationRangeEnd(String value);
   external String get animationRangeStart;
-  external set animationTimeline(String value);
+  external set animationRangeStart(String value);
   external String get animationTimeline;
-  external set animationTimingFunction(String value);
+  external set animationTimeline(String value);
   external String get animationTimingFunction;
-  external set appearance(String value);
+  external set animationTimingFunction(String value);
   external String get appearance;
-  external set aspectRatio(String value);
+  external set appearance(String value);
   external String get aspectRatio;
-  external set backdropFilter(String value);
+  external set aspectRatio(String value);
   external String get backdropFilter;
-  external set backfaceVisibility(String value);
+  external set backdropFilter(String value);
   external String get backfaceVisibility;
-  external set background(String value);
+  external set backfaceVisibility(String value);
   external String get background;
-  external set backgroundAttachment(String value);
+  external set background(String value);
   external String get backgroundAttachment;
-  external set backgroundBlendMode(String value);
+  external set backgroundAttachment(String value);
   external String get backgroundBlendMode;
-  external set backgroundClip(String value);
+  external set backgroundBlendMode(String value);
   external String get backgroundClip;
-  external set backgroundColor(String value);
+  external set backgroundClip(String value);
   external String get backgroundColor;
-  external set backgroundImage(String value);
+  external set backgroundColor(String value);
   external String get backgroundImage;
-  external set backgroundOrigin(String value);
+  external set backgroundImage(String value);
   external String get backgroundOrigin;
-  external set backgroundPosition(String value);
+  external set backgroundOrigin(String value);
   external String get backgroundPosition;
-  external set backgroundPositionBlock(String value);
+  external set backgroundPosition(String value);
   external String get backgroundPositionBlock;
-  external set backgroundPositionInline(String value);
+  external set backgroundPositionBlock(String value);
   external String get backgroundPositionInline;
-  external set backgroundPositionX(String value);
+  external set backgroundPositionInline(String value);
   external String get backgroundPositionX;
-  external set backgroundPositionY(String value);
+  external set backgroundPositionX(String value);
   external String get backgroundPositionY;
-  external set backgroundRepeat(String value);
+  external set backgroundPositionY(String value);
   external String get backgroundRepeat;
-  external set backgroundSize(String value);
+  external set backgroundRepeat(String value);
   external String get backgroundSize;
-  external set backgroundTbd(String value);
+  external set backgroundSize(String value);
   external String get backgroundTbd;
-  external set baselineShift(String value);
+  external set backgroundTbd(String value);
   external String get baselineShift;
-  external set baselineSource(String value);
+  external set baselineShift(String value);
   external String get baselineSource;
-  external set blockEllipsis(String value);
+  external set baselineSource(String value);
   external String get blockEllipsis;
-  external set blockSize(String value);
+  external set blockEllipsis(String value);
   external String get blockSize;
-  external set blockStep(String value);
+  external set blockSize(String value);
   external String get blockStep;
-  external set blockStepAlign(String value);
+  external set blockStep(String value);
   external String get blockStepAlign;
-  external set blockStepInsert(String value);
+  external set blockStepAlign(String value);
   external String get blockStepInsert;
-  external set blockStepRound(String value);
+  external set blockStepInsert(String value);
   external String get blockStepRound;
-  external set blockStepSize(String value);
+  external set blockStepRound(String value);
   external String get blockStepSize;
-  external set bookmarkLabel(String value);
+  external set blockStepSize(String value);
   external String get bookmarkLabel;
-  external set bookmarkLevel(String value);
+  external set bookmarkLabel(String value);
   external String get bookmarkLevel;
-  external set bookmarkState(String value);
+  external set bookmarkLevel(String value);
   external String get bookmarkState;
-  external set border(String value);
+  external set bookmarkState(String value);
   external String get border;
-  external set borderBlock(String value);
+  external set border(String value);
   external String get borderBlock;
-  external set borderBlockColor(String value);
+  external set borderBlock(String value);
   external String get borderBlockColor;
-  external set borderBlockEnd(String value);
+  external set borderBlockColor(String value);
   external String get borderBlockEnd;
-  external set borderBlockEndColor(String value);
+  external set borderBlockEnd(String value);
   external String get borderBlockEndColor;
-  external set borderBlockEndRadius(String value);
+  external set borderBlockEndColor(String value);
   external String get borderBlockEndRadius;
-  external set borderBlockEndStyle(String value);
+  external set borderBlockEndRadius(String value);
   external String get borderBlockEndStyle;
-  external set borderBlockEndWidth(String value);
+  external set borderBlockEndStyle(String value);
   external String get borderBlockEndWidth;
-  external set borderBlockStart(String value);
+  external set borderBlockEndWidth(String value);
   external String get borderBlockStart;
-  external set borderBlockStartColor(String value);
+  external set borderBlockStart(String value);
   external String get borderBlockStartColor;
-  external set borderBlockStartRadius(String value);
+  external set borderBlockStartColor(String value);
   external String get borderBlockStartRadius;
-  external set borderBlockStartStyle(String value);
+  external set borderBlockStartRadius(String value);
   external String get borderBlockStartStyle;
-  external set borderBlockStartWidth(String value);
+  external set borderBlockStartStyle(String value);
   external String get borderBlockStartWidth;
-  external set borderBlockStyle(String value);
+  external set borderBlockStartWidth(String value);
   external String get borderBlockStyle;
-  external set borderBlockWidth(String value);
+  external set borderBlockStyle(String value);
   external String get borderBlockWidth;
-  external set borderBottom(String value);
+  external set borderBlockWidth(String value);
   external String get borderBottom;
-  external set borderBottomColor(String value);
+  external set borderBottom(String value);
   external String get borderBottomColor;
-  external set borderBottomLeftRadius(String value);
+  external set borderBottomColor(String value);
   external String get borderBottomLeftRadius;
-  external set borderBottomRadius(String value);
+  external set borderBottomLeftRadius(String value);
   external String get borderBottomRadius;
-  external set borderBottomRightRadius(String value);
+  external set borderBottomRadius(String value);
   external String get borderBottomRightRadius;
-  external set borderBottomStyle(String value);
+  external set borderBottomRightRadius(String value);
   external String get borderBottomStyle;
-  external set borderBottomWidth(String value);
+  external set borderBottomStyle(String value);
   external String get borderBottomWidth;
-  external set borderBoundary(String value);
+  external set borderBottomWidth(String value);
   external String get borderBoundary;
-  external set borderClip(String value);
+  external set borderBoundary(String value);
   external String get borderClip;
-  external set borderClipBottom(String value);
+  external set borderClip(String value);
   external String get borderClipBottom;
-  external set borderClipLeft(String value);
+  external set borderClipBottom(String value);
   external String get borderClipLeft;
-  external set borderClipRight(String value);
+  external set borderClipLeft(String value);
   external String get borderClipRight;
-  external set borderClipTop(String value);
+  external set borderClipRight(String value);
   external String get borderClipTop;
-  external set borderCollapse(String value);
+  external set borderClipTop(String value);
   external String get borderCollapse;
-  external set borderColor(String value);
+  external set borderCollapse(String value);
   external String get borderColor;
-  external set borderEndEndRadius(String value);
+  external set borderColor(String value);
   external String get borderEndEndRadius;
-  external set borderEndStartRadius(String value);
+  external set borderEndEndRadius(String value);
   external String get borderEndStartRadius;
-  external set borderImage(String value);
+  external set borderEndStartRadius(String value);
   external String get borderImage;
-  external set borderImageOutset(String value);
+  external set borderImage(String value);
   external String get borderImageOutset;
-  external set borderImageRepeat(String value);
+  external set borderImageOutset(String value);
   external String get borderImageRepeat;
-  external set borderImageSlice(String value);
+  external set borderImageRepeat(String value);
   external String get borderImageSlice;
-  external set borderImageSource(String value);
+  external set borderImageSlice(String value);
   external String get borderImageSource;
-  external set borderImageWidth(String value);
+  external set borderImageSource(String value);
   external String get borderImageWidth;
-  external set borderInline(String value);
+  external set borderImageWidth(String value);
   external String get borderInline;
-  external set borderInlineColor(String value);
+  external set borderInline(String value);
   external String get borderInlineColor;
-  external set borderInlineEnd(String value);
+  external set borderInlineColor(String value);
   external String get borderInlineEnd;
-  external set borderInlineEndColor(String value);
+  external set borderInlineEnd(String value);
   external String get borderInlineEndColor;
-  external set borderInlineEndRadius(String value);
+  external set borderInlineEndColor(String value);
   external String get borderInlineEndRadius;
-  external set borderInlineEndStyle(String value);
+  external set borderInlineEndRadius(String value);
   external String get borderInlineEndStyle;
-  external set borderInlineEndWidth(String value);
+  external set borderInlineEndStyle(String value);
   external String get borderInlineEndWidth;
-  external set borderInlineStart(String value);
+  external set borderInlineEndWidth(String value);
   external String get borderInlineStart;
-  external set borderInlineStartColor(String value);
+  external set borderInlineStart(String value);
   external String get borderInlineStartColor;
-  external set borderInlineStartRadius(String value);
+  external set borderInlineStartColor(String value);
   external String get borderInlineStartRadius;
-  external set borderInlineStartStyle(String value);
+  external set borderInlineStartRadius(String value);
   external String get borderInlineStartStyle;
-  external set borderInlineStartWidth(String value);
+  external set borderInlineStartStyle(String value);
   external String get borderInlineStartWidth;
-  external set borderInlineStyle(String value);
+  external set borderInlineStartWidth(String value);
   external String get borderInlineStyle;
-  external set borderInlineWidth(String value);
+  external set borderInlineStyle(String value);
   external String get borderInlineWidth;
-  external set borderLeft(String value);
+  external set borderInlineWidth(String value);
   external String get borderLeft;
-  external set borderLeftColor(String value);
+  external set borderLeft(String value);
   external String get borderLeftColor;
-  external set borderLeftRadius(String value);
+  external set borderLeftColor(String value);
   external String get borderLeftRadius;
-  external set borderLeftStyle(String value);
+  external set borderLeftRadius(String value);
   external String get borderLeftStyle;
-  external set borderLeftWidth(String value);
+  external set borderLeftStyle(String value);
   external String get borderLeftWidth;
-  external set borderLimit(String value);
+  external set borderLeftWidth(String value);
   external String get borderLimit;
-  external set borderRadius(String value);
+  external set borderLimit(String value);
   external String get borderRadius;
-  external set borderRight(String value);
+  external set borderRadius(String value);
   external String get borderRight;
-  external set borderRightColor(String value);
+  external set borderRight(String value);
   external String get borderRightColor;
-  external set borderRightRadius(String value);
+  external set borderRightColor(String value);
   external String get borderRightRadius;
-  external set borderRightStyle(String value);
+  external set borderRightRadius(String value);
   external String get borderRightStyle;
-  external set borderRightWidth(String value);
+  external set borderRightStyle(String value);
   external String get borderRightWidth;
-  external set borderSpacing(String value);
+  external set borderRightWidth(String value);
   external String get borderSpacing;
-  external set borderStartEndRadius(String value);
+  external set borderSpacing(String value);
   external String get borderStartEndRadius;
-  external set borderStartStartRadius(String value);
+  external set borderStartEndRadius(String value);
   external String get borderStartStartRadius;
-  external set borderStyle(String value);
+  external set borderStartStartRadius(String value);
   external String get borderStyle;
-  external set borderTop(String value);
+  external set borderStyle(String value);
   external String get borderTop;
-  external set borderTopColor(String value);
+  external set borderTop(String value);
   external String get borderTopColor;
-  external set borderTopLeftRadius(String value);
+  external set borderTopColor(String value);
   external String get borderTopLeftRadius;
-  external set borderTopRadius(String value);
+  external set borderTopLeftRadius(String value);
   external String get borderTopRadius;
-  external set borderTopRightRadius(String value);
+  external set borderTopRadius(String value);
   external String get borderTopRightRadius;
-  external set borderTopStyle(String value);
+  external set borderTopRightRadius(String value);
   external String get borderTopStyle;
-  external set borderTopWidth(String value);
+  external set borderTopStyle(String value);
   external String get borderTopWidth;
-  external set borderWidth(String value);
+  external set borderTopWidth(String value);
   external String get borderWidth;
-  external set bottom(String value);
+  external set borderWidth(String value);
   external String get bottom;
-  external set boxDecorationBreak(String value);
+  external set bottom(String value);
   external String get boxDecorationBreak;
-  external set boxShadow(String value);
+  external set boxDecorationBreak(String value);
   external String get boxShadow;
-  external set boxShadowBlur(String value);
+  external set boxShadow(String value);
   external String get boxShadowBlur;
-  external set boxShadowColor(String value);
+  external set boxShadowBlur(String value);
   external String get boxShadowColor;
-  external set boxShadowOffset(String value);
+  external set boxShadowColor(String value);
   external String get boxShadowOffset;
-  external set boxShadowPosition(String value);
+  external set boxShadowOffset(String value);
   external String get boxShadowPosition;
-  external set boxShadowSpread(String value);
+  external set boxShadowPosition(String value);
   external String get boxShadowSpread;
-  external set boxSizing(String value);
+  external set boxShadowSpread(String value);
   external String get boxSizing;
-  external set boxSnap(String value);
+  external set boxSizing(String value);
   external String get boxSnap;
-  external set breakAfter(String value);
+  external set boxSnap(String value);
   external String get breakAfter;
-  external set breakBefore(String value);
+  external set breakAfter(String value);
   external String get breakBefore;
-  external set breakInside(String value);
+  external set breakBefore(String value);
   external String get breakInside;
-  external set captionSide(String value);
+  external set breakInside(String value);
   external String get captionSide;
-  external set caret(String value);
+  external set captionSide(String value);
   external String get caret;
-  external set caretColor(String value);
+  external set caret(String value);
   external String get caretColor;
-  external set caretShape(String value);
+  external set caretColor(String value);
   external String get caretShape;
-  external set clear(String value);
+  external set caretShape(String value);
   external String get clear;
-  external set clip(String value);
+  external set clear(String value);
   external String get clip;
-  external set clipPath(String value);
+  external set clip(String value);
   external String get clipPath;
-  external set clipRule(String value);
+  external set clipPath(String value);
   external String get clipRule;
-  external set color(String value);
+  external set clipRule(String value);
   external String get color;
-  external set colorAdjust(String value);
+  external set color(String value);
   external String get colorAdjust;
-  external set colorInterpolation(String value);
+  external set colorAdjust(String value);
   external String get colorInterpolation;
-  external set colorInterpolationFilters(String value);
+  external set colorInterpolation(String value);
   external String get colorInterpolationFilters;
-  external set colorScheme(String value);
+  external set colorInterpolationFilters(String value);
   external String get colorScheme;
-  external set columnCount(String value);
+  external set colorScheme(String value);
   external String get columnCount;
-  external set columnFill(String value);
+  external set columnCount(String value);
   external String get columnFill;
-  external set columnGap(String value);
+  external set columnFill(String value);
   external String get columnGap;
-  external set columnRule(String value);
+  external set columnGap(String value);
   external String get columnRule;
-  external set columnRuleColor(String value);
+  external set columnRule(String value);
   external String get columnRuleColor;
-  external set columnRuleStyle(String value);
+  external set columnRuleColor(String value);
   external String get columnRuleStyle;
-  external set columnRuleWidth(String value);
+  external set columnRuleStyle(String value);
   external String get columnRuleWidth;
-  external set columnSpan(String value);
+  external set columnRuleWidth(String value);
   external String get columnSpan;
-  external set columnWidth(String value);
+  external set columnSpan(String value);
   external String get columnWidth;
-  external set columns(String value);
+  external set columnWidth(String value);
   external String get columns;
-  external set contain(String value);
+  external set columns(String value);
   external String get contain;
-  external set containIntrinsicBlockSize(String value);
+  external set contain(String value);
   external String get containIntrinsicBlockSize;
-  external set containIntrinsicHeight(String value);
+  external set containIntrinsicBlockSize(String value);
   external String get containIntrinsicHeight;
-  external set containIntrinsicInlineSize(String value);
+  external set containIntrinsicHeight(String value);
   external String get containIntrinsicInlineSize;
-  external set containIntrinsicSize(String value);
+  external set containIntrinsicInlineSize(String value);
   external String get containIntrinsicSize;
-  external set containIntrinsicWidth(String value);
+  external set containIntrinsicSize(String value);
   external String get containIntrinsicWidth;
-  external set container(String value);
+  external set containIntrinsicWidth(String value);
   external String get container;
-  external set containerName(String value);
+  external set container(String value);
   external String get containerName;
-  external set containerType(String value);
+  external set containerName(String value);
   external String get containerType;
-  external set content(String value);
+  external set containerType(String value);
   external String get content;
-  external set contentVisibility(String value);
+  external set content(String value);
   external String get contentVisibility;
-  @JS('continue')
-  external set continue_(String value);
+  external set contentVisibility(String value);
   @JS('continue')
   external String get continue_;
-  external set copyInto(String value);
+  @JS('continue')
+  external set continue_(String value);
   external String get copyInto;
-  external set cornerShape(String value);
+  external set copyInto(String value);
   external String get cornerShape;
-  external set corners(String value);
+  external set cornerShape(String value);
   external String get corners;
-  external set counterIncrement(String value);
+  external set corners(String value);
   external String get counterIncrement;
-  external set counterReset(String value);
+  external set counterIncrement(String value);
   external String get counterReset;
-  external set counterSet(String value);
+  external set counterReset(String value);
   external String get counterSet;
-  external set cue(String value);
+  external set counterSet(String value);
   external String get cue;
-  external set cueAfter(String value);
+  external set cue(String value);
   external String get cueAfter;
-  external set cueBefore(String value);
+  external set cueAfter(String value);
   external String get cueBefore;
-  external set cursor(String value);
+  external set cueBefore(String value);
   external String get cursor;
-  external set cx(String value);
+  external set cursor(String value);
   external String get cx;
-  external set cy(String value);
+  external set cx(String value);
   external String get cy;
-  external set d(String value);
+  external set cy(String value);
   external String get d;
-  external set direction(String value);
+  external set d(String value);
   external String get direction;
-  external set display(String value);
+  external set direction(String value);
   external String get display;
-  external set dominantBaseline(String value);
+  external set display(String value);
   external String get dominantBaseline;
-  external set emptyCells(String value);
+  external set dominantBaseline(String value);
   external String get emptyCells;
-  external set fieldSizing(String value);
+  external set emptyCells(String value);
   external String get fieldSizing;
-  external set fill(String value);
+  external set fieldSizing(String value);
   external String get fill;
-  external set fillBreak(String value);
+  external set fill(String value);
   external String get fillBreak;
-  external set fillColor(String value);
+  external set fillBreak(String value);
   external String get fillColor;
-  external set fillImage(String value);
+  external set fillColor(String value);
   external String get fillImage;
-  external set fillOpacity(String value);
+  external set fillImage(String value);
   external String get fillOpacity;
-  external set fillOrigin(String value);
+  external set fillOpacity(String value);
   external String get fillOrigin;
-  external set fillPosition(String value);
+  external set fillOrigin(String value);
   external String get fillPosition;
-  external set fillRepeat(String value);
+  external set fillPosition(String value);
   external String get fillRepeat;
-  external set fillRule(String value);
+  external set fillRepeat(String value);
   external String get fillRule;
-  external set fillSize(String value);
+  external set fillRule(String value);
   external String get fillSize;
-  external set filter(String value);
+  external set fillSize(String value);
   external String get filter;
-  external set flex(String value);
+  external set filter(String value);
   external String get flex;
-  external set flexBasis(String value);
+  external set flex(String value);
   external String get flexBasis;
-  external set flexDirection(String value);
+  external set flexBasis(String value);
   external String get flexDirection;
-  external set flexFlow(String value);
+  external set flexDirection(String value);
   external String get flexFlow;
-  external set flexGrow(String value);
+  external set flexFlow(String value);
   external String get flexGrow;
-  external set flexShrink(String value);
+  external set flexGrow(String value);
   external String get flexShrink;
-  external set flexWrap(String value);
+  external set flexShrink(String value);
   external String get flexWrap;
-  external set float(String value);
+  external set flexWrap(String value);
   external String get float;
-  external set floatDefer(String value);
+  external set float(String value);
   external String get floatDefer;
-  external set floatOffset(String value);
+  external set floatDefer(String value);
   external String get floatOffset;
-  external set floatReference(String value);
+  external set floatOffset(String value);
   external String get floatReference;
-  external set floodColor(String value);
+  external set floatReference(String value);
   external String get floodColor;
-  external set floodOpacity(String value);
+  external set floodColor(String value);
   external String get floodOpacity;
-  external set flowFrom(String value);
+  external set floodOpacity(String value);
   external String get flowFrom;
-  external set flowInto(String value);
+  external set flowFrom(String value);
   external String get flowInto;
-  external set font(String value);
+  external set flowInto(String value);
   external String get font;
-  external set fontFamily(String value);
+  external set font(String value);
   external String get fontFamily;
-  external set fontFeatureSettings(String value);
+  external set fontFamily(String value);
   external String get fontFeatureSettings;
-  external set fontKerning(String value);
+  external set fontFeatureSettings(String value);
   external String get fontKerning;
-  external set fontLanguageOverride(String value);
+  external set fontKerning(String value);
   external String get fontLanguageOverride;
-  external set fontOpticalSizing(String value);
+  external set fontLanguageOverride(String value);
   external String get fontOpticalSizing;
-  external set fontPalette(String value);
+  external set fontOpticalSizing(String value);
   external String get fontPalette;
-  external set fontSize(String value);
+  external set fontPalette(String value);
   external String get fontSize;
-  external set fontSizeAdjust(String value);
+  external set fontSize(String value);
   external String get fontSizeAdjust;
-  external set fontStretch(String value);
+  external set fontSizeAdjust(String value);
   external String get fontStretch;
-  external set fontStyle(String value);
+  external set fontStretch(String value);
   external String get fontStyle;
-  external set fontSynthesis(String value);
+  external set fontStyle(String value);
   external String get fontSynthesis;
-  external set fontSynthesisPosition(String value);
+  external set fontSynthesis(String value);
   external String get fontSynthesisPosition;
-  external set fontSynthesisSmallCaps(String value);
+  external set fontSynthesisPosition(String value);
   external String get fontSynthesisSmallCaps;
-  external set fontSynthesisStyle(String value);
+  external set fontSynthesisSmallCaps(String value);
   external String get fontSynthesisStyle;
-  external set fontSynthesisWeight(String value);
+  external set fontSynthesisStyle(String value);
   external String get fontSynthesisWeight;
-  external set fontVariant(String value);
+  external set fontSynthesisWeight(String value);
   external String get fontVariant;
-  external set fontVariantAlternates(String value);
+  external set fontVariant(String value);
   external String get fontVariantAlternates;
-  external set fontVariantCaps(String value);
+  external set fontVariantAlternates(String value);
   external String get fontVariantCaps;
-  external set fontVariantEastAsian(String value);
+  external set fontVariantCaps(String value);
   external String get fontVariantEastAsian;
-  external set fontVariantEmoji(String value);
+  external set fontVariantEastAsian(String value);
   external String get fontVariantEmoji;
-  external set fontVariantLigatures(String value);
+  external set fontVariantEmoji(String value);
   external String get fontVariantLigatures;
-  external set fontVariantNumeric(String value);
+  external set fontVariantLigatures(String value);
   external String get fontVariantNumeric;
-  external set fontVariantPosition(String value);
+  external set fontVariantNumeric(String value);
   external String get fontVariantPosition;
-  external set fontVariationSettings(String value);
+  external set fontVariantPosition(String value);
   external String get fontVariationSettings;
-  external set fontWeight(String value);
+  external set fontVariationSettings(String value);
   external String get fontWeight;
-  external set fontWidth(String value);
+  external set fontWeight(String value);
   external String get fontWidth;
-  external set footnoteDisplay(String value);
+  external set fontWidth(String value);
   external String get footnoteDisplay;
-  external set footnotePolicy(String value);
+  external set footnoteDisplay(String value);
   external String get footnotePolicy;
-  external set forcedColorAdjust(String value);
+  external set footnotePolicy(String value);
   external String get forcedColorAdjust;
-  external set gap(String value);
+  external set forcedColorAdjust(String value);
   external String get gap;
-  external set glyphOrientationVertical(String value);
+  external set gap(String value);
   external String get glyphOrientationVertical;
-  external set grid(String value);
+  external set glyphOrientationVertical(String value);
   external String get grid;
-  external set gridArea(String value);
+  external set grid(String value);
   external String get gridArea;
-  external set gridAutoColumns(String value);
+  external set gridArea(String value);
   external String get gridAutoColumns;
-  external set gridAutoFlow(String value);
+  external set gridAutoColumns(String value);
   external String get gridAutoFlow;
-  external set gridAutoRows(String value);
+  external set gridAutoFlow(String value);
   external String get gridAutoRows;
-  external set gridColumn(String value);
+  external set gridAutoRows(String value);
   external String get gridColumn;
-  external set gridColumnEnd(String value);
+  external set gridColumn(String value);
   external String get gridColumnEnd;
-  external set gridColumnGap(String value);
+  external set gridColumnEnd(String value);
   external String get gridColumnGap;
-  external set gridColumnStart(String value);
+  external set gridColumnGap(String value);
   external String get gridColumnStart;
-  external set gridGap(String value);
+  external set gridColumnStart(String value);
   external String get gridGap;
-  external set gridRow(String value);
+  external set gridGap(String value);
   external String get gridRow;
-  external set gridRowEnd(String value);
+  external set gridRow(String value);
   external String get gridRowEnd;
-  external set gridRowGap(String value);
+  external set gridRowEnd(String value);
   external String get gridRowGap;
-  external set gridRowStart(String value);
+  external set gridRowGap(String value);
   external String get gridRowStart;
-  external set gridTemplate(String value);
+  external set gridRowStart(String value);
   external String get gridTemplate;
-  external set gridTemplateAreas(String value);
+  external set gridTemplate(String value);
   external String get gridTemplateAreas;
-  external set gridTemplateColumns(String value);
+  external set gridTemplateAreas(String value);
   external String get gridTemplateColumns;
-  external set gridTemplateRows(String value);
+  external set gridTemplateColumns(String value);
   external String get gridTemplateRows;
-  external set hangingPunctuation(String value);
+  external set gridTemplateRows(String value);
   external String get hangingPunctuation;
-  external set height(String value);
+  external set hangingPunctuation(String value);
   external String get height;
-  external set hyphenateCharacter(String value);
+  external set height(String value);
   external String get hyphenateCharacter;
-  external set hyphenateLimitChars(String value);
+  external set hyphenateCharacter(String value);
   external String get hyphenateLimitChars;
-  external set hyphenateLimitLast(String value);
+  external set hyphenateLimitChars(String value);
   external String get hyphenateLimitLast;
-  external set hyphenateLimitLines(String value);
+  external set hyphenateLimitLast(String value);
   external String get hyphenateLimitLines;
-  external set hyphenateLimitZone(String value);
+  external set hyphenateLimitLines(String value);
   external String get hyphenateLimitZone;
-  external set hyphens(String value);
+  external set hyphenateLimitZone(String value);
   external String get hyphens;
-  external set imageOrientation(String value);
+  external set hyphens(String value);
   external String get imageOrientation;
-  external set imageRendering(String value);
+  external set imageOrientation(String value);
   external String get imageRendering;
-  external set imageResolution(String value);
+  external set imageRendering(String value);
   external String get imageResolution;
-  external set initialLetter(String value);
+  external set imageResolution(String value);
   external String get initialLetter;
-  external set initialLetterAlign(String value);
+  external set initialLetter(String value);
   external String get initialLetterAlign;
-  external set initialLetterWrap(String value);
+  external set initialLetterAlign(String value);
   external String get initialLetterWrap;
-  external set inlineSize(String value);
+  external set initialLetterWrap(String value);
   external String get inlineSize;
-  external set inlineSizing(String value);
+  external set inlineSize(String value);
   external String get inlineSizing;
-  external set inputSecurity(String value);
+  external set inlineSizing(String value);
   external String get inputSecurity;
-  external set inset(String value);
+  external set inputSecurity(String value);
   external String get inset;
-  external set insetArea(String value);
+  external set inset(String value);
   external String get insetArea;
-  external set insetBlock(String value);
+  external set insetArea(String value);
   external String get insetBlock;
-  external set insetBlockEnd(String value);
+  external set insetBlock(String value);
   external String get insetBlockEnd;
-  external set insetBlockStart(String value);
+  external set insetBlockEnd(String value);
   external String get insetBlockStart;
-  external set insetInline(String value);
+  external set insetBlockStart(String value);
   external String get insetInline;
-  external set insetInlineEnd(String value);
+  external set insetInline(String value);
   external String get insetInlineEnd;
-  external set insetInlineStart(String value);
+  external set insetInlineEnd(String value);
   external String get insetInlineStart;
-  external set isolation(String value);
+  external set insetInlineStart(String value);
   external String get isolation;
-  external set justifyContent(String value);
+  external set isolation(String value);
   external String get justifyContent;
-  external set justifyItems(String value);
+  external set justifyContent(String value);
   external String get justifyItems;
-  external set justifySelf(String value);
+  external set justifyItems(String value);
   external String get justifySelf;
-  external set layoutOrder(String value);
+  external set justifySelf(String value);
   external String get layoutOrder;
-  external set left(String value);
+  external set layoutOrder(String value);
   external String get left;
-  external set letterSpacing(String value);
+  external set left(String value);
   external String get letterSpacing;
-  external set lightingColor(String value);
+  external set letterSpacing(String value);
   external String get lightingColor;
-  external set lineBreak(String value);
+  external set lightingColor(String value);
   external String get lineBreak;
-  external set lineClamp(String value);
+  external set lineBreak(String value);
   external String get lineClamp;
-  external set lineGrid(String value);
+  external set lineClamp(String value);
   external String get lineGrid;
-  external set lineHeight(String value);
+  external set lineGrid(String value);
   external String get lineHeight;
-  external set lineHeightStep(String value);
+  external set lineHeight(String value);
   external String get lineHeightStep;
-  external set linePadding(String value);
+  external set lineHeightStep(String value);
   external String get linePadding;
-  external set lineSnap(String value);
+  external set linePadding(String value);
   external String get lineSnap;
-  external set linkParameters(String value);
+  external set lineSnap(String value);
   external String get linkParameters;
-  external set listStyle(String value);
+  external set linkParameters(String value);
   external String get listStyle;
-  external set listStyleImage(String value);
+  external set listStyle(String value);
   external String get listStyleImage;
-  external set listStylePosition(String value);
+  external set listStyleImage(String value);
   external String get listStylePosition;
-  external set listStyleType(String value);
+  external set listStylePosition(String value);
   external String get listStyleType;
-  external set margin(String value);
+  external set listStyleType(String value);
   external String get margin;
-  external set marginBlock(String value);
+  external set margin(String value);
   external String get marginBlock;
-  external set marginBlockEnd(String value);
+  external set marginBlock(String value);
   external String get marginBlockEnd;
-  external set marginBlockStart(String value);
+  external set marginBlockEnd(String value);
   external String get marginBlockStart;
-  external set marginBottom(String value);
+  external set marginBlockStart(String value);
   external String get marginBottom;
-  external set marginBreak(String value);
+  external set marginBottom(String value);
   external String get marginBreak;
-  external set marginInline(String value);
+  external set marginBreak(String value);
   external String get marginInline;
-  external set marginInlineEnd(String value);
+  external set marginInline(String value);
   external String get marginInlineEnd;
-  external set marginInlineStart(String value);
+  external set marginInlineEnd(String value);
   external String get marginInlineStart;
-  external set marginLeft(String value);
+  external set marginInlineStart(String value);
   external String get marginLeft;
-  external set marginRight(String value);
+  external set marginLeft(String value);
   external String get marginRight;
-  external set marginTop(String value);
+  external set marginRight(String value);
   external String get marginTop;
-  external set marginTrim(String value);
+  external set marginTop(String value);
   external String get marginTrim;
-  external set marker(String value);
+  external set marginTrim(String value);
   external String get marker;
-  external set markerEnd(String value);
+  external set marker(String value);
   external String get markerEnd;
-  external set markerMid(String value);
+  external set markerEnd(String value);
   external String get markerMid;
-  external set markerSide(String value);
+  external set markerMid(String value);
   external String get markerSide;
-  external set markerStart(String value);
+  external set markerSide(String value);
   external String get markerStart;
-  external set mask(String value);
+  external set markerStart(String value);
   external String get mask;
-  external set maskBorder(String value);
+  external set mask(String value);
   external String get maskBorder;
-  external set maskBorderMode(String value);
+  external set maskBorder(String value);
   external String get maskBorderMode;
-  external set maskBorderOutset(String value);
+  external set maskBorderMode(String value);
   external String get maskBorderOutset;
-  external set maskBorderRepeat(String value);
+  external set maskBorderOutset(String value);
   external String get maskBorderRepeat;
-  external set maskBorderSlice(String value);
+  external set maskBorderRepeat(String value);
   external String get maskBorderSlice;
-  external set maskBorderSource(String value);
+  external set maskBorderSlice(String value);
   external String get maskBorderSource;
-  external set maskBorderWidth(String value);
+  external set maskBorderSource(String value);
   external String get maskBorderWidth;
-  external set maskClip(String value);
+  external set maskBorderWidth(String value);
   external String get maskClip;
-  external set maskComposite(String value);
+  external set maskClip(String value);
   external String get maskComposite;
-  external set maskImage(String value);
+  external set maskComposite(String value);
   external String get maskImage;
-  external set maskMode(String value);
+  external set maskImage(String value);
   external String get maskMode;
-  external set maskOrigin(String value);
+  external set maskMode(String value);
   external String get maskOrigin;
-  external set maskPosition(String value);
+  external set maskOrigin(String value);
   external String get maskPosition;
-  external set maskRepeat(String value);
+  external set maskPosition(String value);
   external String get maskRepeat;
-  external set maskSize(String value);
+  external set maskRepeat(String value);
   external String get maskSize;
-  external set maskType(String value);
+  external set maskSize(String value);
   external String get maskType;
-  external set masonryAutoFlow(String value);
+  external set maskType(String value);
   external String get masonryAutoFlow;
-  external set mathDepth(String value);
+  external set masonryAutoFlow(String value);
   external String get mathDepth;
-  external set mathShift(String value);
+  external set mathDepth(String value);
   external String get mathShift;
-  external set mathStyle(String value);
+  external set mathShift(String value);
   external String get mathStyle;
-  external set maxBlockSize(String value);
+  external set mathStyle(String value);
   external String get maxBlockSize;
-  external set maxHeight(String value);
+  external set maxBlockSize(String value);
   external String get maxHeight;
-  external set maxInlineSize(String value);
+  external set maxHeight(String value);
   external String get maxInlineSize;
-  external set maxLines(String value);
+  external set maxInlineSize(String value);
   external String get maxLines;
-  external set maxWidth(String value);
+  external set maxLines(String value);
   external String get maxWidth;
-  external set minBlockSize(String value);
+  external set maxWidth(String value);
   external String get minBlockSize;
-  external set minHeight(String value);
+  external set minBlockSize(String value);
   external String get minHeight;
-  external set minInlineSize(String value);
+  external set minHeight(String value);
   external String get minInlineSize;
-  external set minIntrinsicSizing(String value);
+  external set minInlineSize(String value);
   external String get minIntrinsicSizing;
-  external set minWidth(String value);
+  external set minIntrinsicSizing(String value);
   external String get minWidth;
-  external set mixBlendMode(String value);
+  external set minWidth(String value);
   external String get mixBlendMode;
-  external set navDown(String value);
+  external set mixBlendMode(String value);
   external String get navDown;
-  external set navLeft(String value);
+  external set navDown(String value);
   external String get navLeft;
-  external set navRight(String value);
+  external set navLeft(String value);
   external String get navRight;
-  external set navUp(String value);
+  external set navRight(String value);
   external String get navUp;
-  external set objectFit(String value);
+  external set navUp(String value);
   external String get objectFit;
-  external set objectPosition(String value);
+  external set objectFit(String value);
   external String get objectPosition;
-  external set objectViewBox(String value);
+  external set objectPosition(String value);
   external String get objectViewBox;
-  external set offset(String value);
+  external set objectViewBox(String value);
   external String get offset;
-  external set offsetAnchor(String value);
+  external set offset(String value);
   external String get offsetAnchor;
-  external set offsetDistance(String value);
+  external set offsetAnchor(String value);
   external String get offsetDistance;
-  external set offsetPath(String value);
+  external set offsetDistance(String value);
   external String get offsetPath;
-  external set offsetPosition(String value);
+  external set offsetPath(String value);
   external String get offsetPosition;
-  external set offsetRotate(String value);
+  external set offsetPosition(String value);
   external String get offsetRotate;
-  external set opacity(String value);
+  external set offsetRotate(String value);
   external String get opacity;
-  external set order(String value);
+  external set opacity(String value);
   external String get order;
-  external set orphans(String value);
+  external set order(String value);
   external String get orphans;
-  external set outline(String value);
+  external set orphans(String value);
   external String get outline;
-  external set outlineColor(String value);
+  external set outline(String value);
   external String get outlineColor;
-  external set outlineOffset(String value);
+  external set outlineColor(String value);
   external String get outlineOffset;
-  external set outlineStyle(String value);
+  external set outlineOffset(String value);
   external String get outlineStyle;
-  external set outlineWidth(String value);
+  external set outlineStyle(String value);
   external String get outlineWidth;
-  external set overflow(String value);
+  external set outlineWidth(String value);
   external String get overflow;
-  external set overflowAnchor(String value);
+  external set overflow(String value);
   external String get overflowAnchor;
-  external set overflowBlock(String value);
+  external set overflowAnchor(String value);
   external String get overflowBlock;
-  external set overflowClipMargin(String value);
+  external set overflowBlock(String value);
   external String get overflowClipMargin;
-  external set overflowClipMarginBlock(String value);
+  external set overflowClipMargin(String value);
   external String get overflowClipMarginBlock;
-  external set overflowClipMarginBlockEnd(String value);
+  external set overflowClipMarginBlock(String value);
   external String get overflowClipMarginBlockEnd;
-  external set overflowClipMarginBlockStart(String value);
+  external set overflowClipMarginBlockEnd(String value);
   external String get overflowClipMarginBlockStart;
-  external set overflowClipMarginBottom(String value);
+  external set overflowClipMarginBlockStart(String value);
   external String get overflowClipMarginBottom;
-  external set overflowClipMarginInline(String value);
+  external set overflowClipMarginBottom(String value);
   external String get overflowClipMarginInline;
-  external set overflowClipMarginInlineEnd(String value);
+  external set overflowClipMarginInline(String value);
   external String get overflowClipMarginInlineEnd;
-  external set overflowClipMarginInlineStart(String value);
+  external set overflowClipMarginInlineEnd(String value);
   external String get overflowClipMarginInlineStart;
-  external set overflowClipMarginLeft(String value);
+  external set overflowClipMarginInlineStart(String value);
   external String get overflowClipMarginLeft;
-  external set overflowClipMarginRight(String value);
+  external set overflowClipMarginLeft(String value);
   external String get overflowClipMarginRight;
-  external set overflowClipMarginTop(String value);
+  external set overflowClipMarginRight(String value);
   external String get overflowClipMarginTop;
-  external set overflowInline(String value);
+  external set overflowClipMarginTop(String value);
   external String get overflowInline;
-  external set overflowWrap(String value);
+  external set overflowInline(String value);
   external String get overflowWrap;
-  external set overflowX(String value);
+  external set overflowWrap(String value);
   external String get overflowX;
-  external set overflowY(String value);
+  external set overflowX(String value);
   external String get overflowY;
-  external set overlay(String value);
+  external set overflowY(String value);
   external String get overlay;
-  external set overscrollBehavior(String value);
+  external set overlay(String value);
   external String get overscrollBehavior;
-  external set overscrollBehaviorBlock(String value);
+  external set overscrollBehavior(String value);
   external String get overscrollBehaviorBlock;
-  external set overscrollBehaviorInline(String value);
+  external set overscrollBehaviorBlock(String value);
   external String get overscrollBehaviorInline;
-  external set overscrollBehaviorX(String value);
+  external set overscrollBehaviorInline(String value);
   external String get overscrollBehaviorX;
-  external set overscrollBehaviorY(String value);
+  external set overscrollBehaviorX(String value);
   external String get overscrollBehaviorY;
-  external set padding(String value);
+  external set overscrollBehaviorY(String value);
   external String get padding;
-  external set paddingBlock(String value);
+  external set padding(String value);
   external String get paddingBlock;
-  external set paddingBlockEnd(String value);
+  external set paddingBlock(String value);
   external String get paddingBlockEnd;
-  external set paddingBlockStart(String value);
+  external set paddingBlockEnd(String value);
   external String get paddingBlockStart;
-  external set paddingBottom(String value);
+  external set paddingBlockStart(String value);
   external String get paddingBottom;
-  external set paddingInline(String value);
+  external set paddingBottom(String value);
   external String get paddingInline;
-  external set paddingInlineEnd(String value);
+  external set paddingInline(String value);
   external String get paddingInlineEnd;
-  external set paddingInlineStart(String value);
+  external set paddingInlineEnd(String value);
   external String get paddingInlineStart;
-  external set paddingLeft(String value);
+  external set paddingInlineStart(String value);
   external String get paddingLeft;
-  external set paddingRight(String value);
+  external set paddingLeft(String value);
   external String get paddingRight;
-  external set paddingTop(String value);
+  external set paddingRight(String value);
   external String get paddingTop;
-  external set page(String value);
+  external set paddingTop(String value);
   external String get page;
-  external set pageBreakAfter(String value);
+  external set page(String value);
   external String get pageBreakAfter;
-  external set pageBreakBefore(String value);
+  external set pageBreakAfter(String value);
   external String get pageBreakBefore;
-  external set pageBreakInside(String value);
+  external set pageBreakBefore(String value);
   external String get pageBreakInside;
-  external set paintOrder(String value);
+  external set pageBreakInside(String value);
   external String get paintOrder;
-  external set pause(String value);
+  external set paintOrder(String value);
   external String get pause;
-  external set pauseAfter(String value);
+  external set pause(String value);
   external String get pauseAfter;
-  external set pauseBefore(String value);
+  external set pauseAfter(String value);
   external String get pauseBefore;
-  external set perspective(String value);
+  external set pauseBefore(String value);
   external String get perspective;
-  external set perspectiveOrigin(String value);
+  external set perspective(String value);
   external String get perspectiveOrigin;
-  external set placeContent(String value);
+  external set perspectiveOrigin(String value);
   external String get placeContent;
-  external set placeItems(String value);
+  external set placeContent(String value);
   external String get placeItems;
-  external set placeSelf(String value);
+  external set placeItems(String value);
   external String get placeSelf;
-  external set pointerEvents(String value);
+  external set placeSelf(String value);
   external String get pointerEvents;
-  external set position(String value);
+  external set pointerEvents(String value);
   external String get position;
-  external set positionFallbackBounds(String value);
+  external set position(String value);
   external String get positionFallbackBounds;
-  external set positionTryFinal(String value);
+  external set positionFallbackBounds(String value);
   external String get positionTryFinal;
-  external set positionTryOptions(String value);
+  external set positionTryFinal(String value);
   external String get positionTryOptions;
-  external set positionTryOrder(String value);
+  external set positionTryOptions(String value);
   external String get positionTryOrder;
-  external set printColorAdjust(String value);
+  external set positionTryOrder(String value);
   external String get printColorAdjust;
-  external set quotes(String value);
+  external set printColorAdjust(String value);
   external String get quotes;
-  external set r(String value);
+  external set quotes(String value);
   external String get r;
-  external set readingOrder(String value);
+  external set r(String value);
   external String get readingOrder;
-  external set regionFragment(String value);
+  external set readingOrder(String value);
   external String get regionFragment;
-  external set resize(String value);
+  external set regionFragment(String value);
   external String get resize;
-  external set rest(String value);
+  external set resize(String value);
   external String get rest;
-  external set restAfter(String value);
+  external set rest(String value);
   external String get restAfter;
-  external set restBefore(String value);
+  external set restAfter(String value);
   external String get restBefore;
-  external set right(String value);
+  external set restBefore(String value);
   external String get right;
-  external set rotate(String value);
+  external set right(String value);
   external String get rotate;
-  external set rowGap(String value);
+  external set rotate(String value);
   external String get rowGap;
-  external set rubyAlign(String value);
+  external set rowGap(String value);
   external String get rubyAlign;
-  external set rubyMerge(String value);
+  external set rubyAlign(String value);
   external String get rubyMerge;
-  external set rubyOverhang(String value);
+  external set rubyMerge(String value);
   external String get rubyOverhang;
-  external set rubyPosition(String value);
+  external set rubyOverhang(String value);
   external String get rubyPosition;
-  external set rx(String value);
+  external set rubyPosition(String value);
   external String get rx;
-  external set ry(String value);
+  external set rx(String value);
   external String get ry;
-  external set scale(String value);
+  external set ry(String value);
   external String get scale;
-  external set scrollBehavior(String value);
+  external set scale(String value);
   external String get scrollBehavior;
-  external set scrollMargin(String value);
+  external set scrollBehavior(String value);
   external String get scrollMargin;
-  external set scrollMarginBlock(String value);
+  external set scrollMargin(String value);
   external String get scrollMarginBlock;
-  external set scrollMarginBlockEnd(String value);
+  external set scrollMarginBlock(String value);
   external String get scrollMarginBlockEnd;
-  external set scrollMarginBlockStart(String value);
+  external set scrollMarginBlockEnd(String value);
   external String get scrollMarginBlockStart;
-  external set scrollMarginBottom(String value);
+  external set scrollMarginBlockStart(String value);
   external String get scrollMarginBottom;
-  external set scrollMarginInline(String value);
+  external set scrollMarginBottom(String value);
   external String get scrollMarginInline;
-  external set scrollMarginInlineEnd(String value);
+  external set scrollMarginInline(String value);
   external String get scrollMarginInlineEnd;
-  external set scrollMarginInlineStart(String value);
+  external set scrollMarginInlineEnd(String value);
   external String get scrollMarginInlineStart;
-  external set scrollMarginLeft(String value);
+  external set scrollMarginInlineStart(String value);
   external String get scrollMarginLeft;
-  external set scrollMarginRight(String value);
+  external set scrollMarginLeft(String value);
   external String get scrollMarginRight;
-  external set scrollMarginTop(String value);
+  external set scrollMarginRight(String value);
   external String get scrollMarginTop;
-  external set scrollPadding(String value);
+  external set scrollMarginTop(String value);
   external String get scrollPadding;
-  external set scrollPaddingBlock(String value);
+  external set scrollPadding(String value);
   external String get scrollPaddingBlock;
-  external set scrollPaddingBlockEnd(String value);
+  external set scrollPaddingBlock(String value);
   external String get scrollPaddingBlockEnd;
-  external set scrollPaddingBlockStart(String value);
+  external set scrollPaddingBlockEnd(String value);
   external String get scrollPaddingBlockStart;
-  external set scrollPaddingBottom(String value);
+  external set scrollPaddingBlockStart(String value);
   external String get scrollPaddingBottom;
-  external set scrollPaddingInline(String value);
+  external set scrollPaddingBottom(String value);
   external String get scrollPaddingInline;
-  external set scrollPaddingInlineEnd(String value);
+  external set scrollPaddingInline(String value);
   external String get scrollPaddingInlineEnd;
-  external set scrollPaddingInlineStart(String value);
+  external set scrollPaddingInlineEnd(String value);
   external String get scrollPaddingInlineStart;
-  external set scrollPaddingLeft(String value);
+  external set scrollPaddingInlineStart(String value);
   external String get scrollPaddingLeft;
-  external set scrollPaddingRight(String value);
+  external set scrollPaddingLeft(String value);
   external String get scrollPaddingRight;
-  external set scrollPaddingTop(String value);
+  external set scrollPaddingRight(String value);
   external String get scrollPaddingTop;
-  external set scrollSnapAlign(String value);
+  external set scrollPaddingTop(String value);
   external String get scrollSnapAlign;
-  external set scrollSnapStop(String value);
+  external set scrollSnapAlign(String value);
   external String get scrollSnapStop;
-  external set scrollSnapType(String value);
+  external set scrollSnapStop(String value);
   external String get scrollSnapType;
-  external set scrollStart(String value);
+  external set scrollSnapType(String value);
   external String get scrollStart;
-  external set scrollStartBlock(String value);
+  external set scrollStart(String value);
   external String get scrollStartBlock;
-  external set scrollStartInline(String value);
+  external set scrollStartBlock(String value);
   external String get scrollStartInline;
-  external set scrollStartTarget(String value);
+  external set scrollStartInline(String value);
   external String get scrollStartTarget;
-  external set scrollStartTargetBlock(String value);
+  external set scrollStartTarget(String value);
   external String get scrollStartTargetBlock;
-  external set scrollStartTargetInline(String value);
+  external set scrollStartTargetBlock(String value);
   external String get scrollStartTargetInline;
-  external set scrollStartTargetX(String value);
+  external set scrollStartTargetInline(String value);
   external String get scrollStartTargetX;
-  external set scrollStartTargetY(String value);
+  external set scrollStartTargetX(String value);
   external String get scrollStartTargetY;
-  external set scrollStartX(String value);
+  external set scrollStartTargetY(String value);
   external String get scrollStartX;
-  external set scrollStartY(String value);
+  external set scrollStartX(String value);
   external String get scrollStartY;
-  external set scrollTimeline(String value);
+  external set scrollStartY(String value);
   external String get scrollTimeline;
-  external set scrollTimelineAxis(String value);
+  external set scrollTimeline(String value);
   external String get scrollTimelineAxis;
-  external set scrollTimelineName(String value);
+  external set scrollTimelineAxis(String value);
   external String get scrollTimelineName;
-  external set scrollbarColor(String value);
+  external set scrollTimelineName(String value);
   external String get scrollbarColor;
-  external set scrollbarGutter(String value);
+  external set scrollbarColor(String value);
   external String get scrollbarGutter;
-  external set scrollbarWidth(String value);
+  external set scrollbarGutter(String value);
   external String get scrollbarWidth;
-  external set shapeImageThreshold(String value);
+  external set scrollbarWidth(String value);
   external String get shapeImageThreshold;
-  external set shapeInside(String value);
+  external set shapeImageThreshold(String value);
   external String get shapeInside;
-  external set shapeMargin(String value);
+  external set shapeInside(String value);
   external String get shapeMargin;
-  external set shapeOutside(String value);
+  external set shapeMargin(String value);
   external String get shapeOutside;
-  external set shapePadding(String value);
+  external set shapeOutside(String value);
   external String get shapePadding;
-  external set shapeRendering(String value);
+  external set shapePadding(String value);
   external String get shapeRendering;
-  external set shapeSubtract(String value);
+  external set shapeRendering(String value);
   external String get shapeSubtract;
-  external set spatialNavigationAction(String value);
+  external set shapeSubtract(String value);
   external String get spatialNavigationAction;
-  external set spatialNavigationContain(String value);
+  external set spatialNavigationAction(String value);
   external String get spatialNavigationContain;
-  external set spatialNavigationFunction(String value);
+  external set spatialNavigationContain(String value);
   external String get spatialNavigationFunction;
-  external set speak(String value);
+  external set spatialNavigationFunction(String value);
   external String get speak;
-  external set speakAs(String value);
+  external set speak(String value);
   external String get speakAs;
-  external set stopColor(String value);
+  external set speakAs(String value);
   external String get stopColor;
-  external set stopOpacity(String value);
+  external set stopColor(String value);
   external String get stopOpacity;
-  external set stringSet(String value);
+  external set stopOpacity(String value);
   external String get stringSet;
-  external set stroke(String value);
+  external set stringSet(String value);
   external String get stroke;
-  external set strokeAlign(String value);
+  external set stroke(String value);
   external String get strokeAlign;
-  external set strokeAlignment(String value);
+  external set strokeAlign(String value);
   external String get strokeAlignment;
-  external set strokeBreak(String value);
+  external set strokeAlignment(String value);
   external String get strokeBreak;
-  external set strokeColor(String value);
+  external set strokeBreak(String value);
   external String get strokeColor;
-  external set strokeDashCorner(String value);
+  external set strokeColor(String value);
   external String get strokeDashCorner;
-  external set strokeDashJustify(String value);
+  external set strokeDashCorner(String value);
   external String get strokeDashJustify;
-  external set strokeDashadjust(String value);
+  external set strokeDashJustify(String value);
   external String get strokeDashadjust;
-  external set strokeDasharray(String value);
+  external set strokeDashadjust(String value);
   external String get strokeDasharray;
-  external set strokeDashcorner(String value);
+  external set strokeDasharray(String value);
   external String get strokeDashcorner;
-  external set strokeDashoffset(String value);
+  external set strokeDashcorner(String value);
   external String get strokeDashoffset;
-  external set strokeImage(String value);
+  external set strokeDashoffset(String value);
   external String get strokeImage;
-  external set strokeLinecap(String value);
+  external set strokeImage(String value);
   external String get strokeLinecap;
-  external set strokeLinejoin(String value);
+  external set strokeLinecap(String value);
   external String get strokeLinejoin;
-  external set strokeMiterlimit(String value);
+  external set strokeLinejoin(String value);
   external String get strokeMiterlimit;
-  external set strokeOpacity(String value);
+  external set strokeMiterlimit(String value);
   external String get strokeOpacity;
-  external set strokeOrigin(String value);
+  external set strokeOpacity(String value);
   external String get strokeOrigin;
-  external set strokePosition(String value);
+  external set strokeOrigin(String value);
   external String get strokePosition;
-  external set strokeRepeat(String value);
+  external set strokePosition(String value);
   external String get strokeRepeat;
-  external set strokeSize(String value);
+  external set strokeRepeat(String value);
   external String get strokeSize;
-  external set strokeWidth(String value);
+  external set strokeSize(String value);
   external String get strokeWidth;
-  external set tabSize(String value);
+  external set strokeWidth(String value);
   external String get tabSize;
-  external set tableLayout(String value);
+  external set tabSize(String value);
   external String get tableLayout;
-  external set textAlign(String value);
+  external set tableLayout(String value);
   external String get textAlign;
-  external set textAlignAll(String value);
+  external set textAlign(String value);
   external String get textAlignAll;
-  external set textAlignLast(String value);
+  external set textAlignAll(String value);
   external String get textAlignLast;
-  external set textAnchor(String value);
+  external set textAlignLast(String value);
   external String get textAnchor;
-  external set textAutospace(String value);
+  external set textAnchor(String value);
   external String get textAutospace;
-  external set textBoxEdge(String value);
+  external set textAutospace(String value);
   external String get textBoxEdge;
-  external set textBoxTrim(String value);
+  external set textBoxEdge(String value);
   external String get textBoxTrim;
-  external set textCombineUpright(String value);
+  external set textBoxTrim(String value);
   external String get textCombineUpright;
-  external set textDecoration(String value);
+  external set textCombineUpright(String value);
   external String get textDecoration;
-  external set textDecorationColor(String value);
+  external set textDecoration(String value);
   external String get textDecorationColor;
-  external set textDecorationLine(String value);
+  external set textDecorationColor(String value);
   external String get textDecorationLine;
-  external set textDecorationSkip(String value);
+  external set textDecorationLine(String value);
   external String get textDecorationSkip;
-  external set textDecorationSkipBox(String value);
+  external set textDecorationSkip(String value);
   external String get textDecorationSkipBox;
-  external set textDecorationSkipInk(String value);
+  external set textDecorationSkipBox(String value);
   external String get textDecorationSkipInk;
-  external set textDecorationSkipSelf(String value);
+  external set textDecorationSkipInk(String value);
   external String get textDecorationSkipSelf;
-  external set textDecorationSkipSpaces(String value);
+  external set textDecorationSkipSelf(String value);
   external String get textDecorationSkipSpaces;
-  external set textDecorationStyle(String value);
+  external set textDecorationSkipSpaces(String value);
   external String get textDecorationStyle;
-  external set textDecorationThickness(String value);
+  external set textDecorationStyle(String value);
   external String get textDecorationThickness;
-  external set textDecorationTrim(String value);
+  external set textDecorationThickness(String value);
   external String get textDecorationTrim;
-  external set textEmphasis(String value);
+  external set textDecorationTrim(String value);
   external String get textEmphasis;
-  external set textEmphasisColor(String value);
+  external set textEmphasis(String value);
   external String get textEmphasisColor;
-  external set textEmphasisPosition(String value);
+  external set textEmphasisColor(String value);
   external String get textEmphasisPosition;
-  external set textEmphasisSkip(String value);
+  external set textEmphasisPosition(String value);
   external String get textEmphasisSkip;
-  external set textEmphasisStyle(String value);
+  external set textEmphasisSkip(String value);
   external String get textEmphasisStyle;
-  external set textGroupAlign(String value);
+  external set textEmphasisStyle(String value);
   external String get textGroupAlign;
-  external set textIndent(String value);
+  external set textGroupAlign(String value);
   external String get textIndent;
-  external set textJustify(String value);
+  external set textIndent(String value);
   external String get textJustify;
-  external set textOrientation(String value);
+  external set textJustify(String value);
   external String get textOrientation;
-  external set textOverflow(String value);
+  external set textOrientation(String value);
   external String get textOverflow;
-  external set textRendering(String value);
+  external set textOverflow(String value);
   external String get textRendering;
-  external set textShadow(String value);
+  external set textRendering(String value);
   external String get textShadow;
-  external set textSizeAdjust(String value);
+  external set textShadow(String value);
   external String get textSizeAdjust;
-  external set textSpacing(String value);
+  external set textSizeAdjust(String value);
   external String get textSpacing;
-  external set textSpacingTrim(String value);
+  external set textSpacing(String value);
   external String get textSpacingTrim;
-  external set textTransform(String value);
+  external set textSpacingTrim(String value);
   external String get textTransform;
-  external set textUnderlineOffset(String value);
+  external set textTransform(String value);
   external String get textUnderlineOffset;
-  external set textUnderlinePosition(String value);
+  external set textUnderlineOffset(String value);
   external String get textUnderlinePosition;
-  external set textWrap(String value);
+  external set textUnderlinePosition(String value);
   external String get textWrap;
-  external set textWrapMode(String value);
+  external set textWrap(String value);
   external String get textWrapMode;
-  external set textWrapStyle(String value);
+  external set textWrapMode(String value);
   external String get textWrapStyle;
-  external set timelineScope(String value);
+  external set textWrapStyle(String value);
   external String get timelineScope;
-  external set top(String value);
+  external set timelineScope(String value);
   external String get top;
-  external set touchAction(String value);
+  external set top(String value);
   external String get touchAction;
-  external set transform(String value);
+  external set touchAction(String value);
   external String get transform;
-  external set transformBox(String value);
+  external set transform(String value);
   external String get transformBox;
-  external set transformOrigin(String value);
+  external set transformBox(String value);
   external String get transformOrigin;
-  external set transformStyle(String value);
+  external set transformOrigin(String value);
   external String get transformStyle;
-  external set transition(String value);
+  external set transformStyle(String value);
   external String get transition;
-  external set transitionBehavior(String value);
+  external set transition(String value);
   external String get transitionBehavior;
-  external set transitionDelay(String value);
+  external set transitionBehavior(String value);
   external String get transitionDelay;
-  external set transitionDuration(String value);
+  external set transitionDelay(String value);
   external String get transitionDuration;
-  external set transitionProperty(String value);
+  external set transitionDuration(String value);
   external String get transitionProperty;
-  external set transitionTimingFunction(String value);
+  external set transitionProperty(String value);
   external String get transitionTimingFunction;
-  external set translate(String value);
+  external set transitionTimingFunction(String value);
   external String get translate;
-  external set unicodeBidi(String value);
+  external set translate(String value);
   external String get unicodeBidi;
-  external set userSelect(String value);
+  external set unicodeBidi(String value);
   external String get userSelect;
-  external set vectorEffect(String value);
+  external set userSelect(String value);
   external String get vectorEffect;
-  external set verticalAlign(String value);
+  external set vectorEffect(String value);
   external String get verticalAlign;
-  external set viewTimeline(String value);
+  external set verticalAlign(String value);
   external String get viewTimeline;
-  external set viewTimelineAxis(String value);
+  external set viewTimeline(String value);
   external String get viewTimelineAxis;
-  external set viewTimelineInset(String value);
+  external set viewTimelineAxis(String value);
   external String get viewTimelineInset;
-  external set viewTimelineName(String value);
+  external set viewTimelineInset(String value);
   external String get viewTimelineName;
-  external set viewTransitionName(String value);
+  external set viewTimelineName(String value);
   external String get viewTransitionName;
-  external set visibility(String value);
+  external set viewTransitionName(String value);
   external String get visibility;
-  external set voiceBalance(String value);
+  external set visibility(String value);
   external String get voiceBalance;
-  external set voiceDuration(String value);
+  external set voiceBalance(String value);
   external String get voiceDuration;
-  external set voiceFamily(String value);
+  external set voiceDuration(String value);
   external String get voiceFamily;
-  external set voicePitch(String value);
+  external set voiceFamily(String value);
   external String get voicePitch;
-  external set voiceRange(String value);
+  external set voicePitch(String value);
   external String get voiceRange;
-  external set voiceRate(String value);
+  external set voiceRange(String value);
   external String get voiceRate;
-  external set voiceStress(String value);
+  external set voiceRate(String value);
   external String get voiceStress;
-  external set voiceVolume(String value);
+  external set voiceStress(String value);
   external String get voiceVolume;
-  external set whiteSpace(String value);
+  external set voiceVolume(String value);
   external String get whiteSpace;
-  external set whiteSpaceCollapse(String value);
+  external set whiteSpace(String value);
   external String get whiteSpaceCollapse;
-  external set whiteSpaceTrim(String value);
+  external set whiteSpaceCollapse(String value);
   external String get whiteSpaceTrim;
-  external set widows(String value);
+  external set whiteSpaceTrim(String value);
   external String get widows;
-  external set width(String value);
+  external set widows(String value);
   external String get width;
-  external set willChange(String value);
+  external set width(String value);
   external String get willChange;
-  external set wordBreak(String value);
+  external set willChange(String value);
   external String get wordBreak;
-  external set wordSpaceTransform(String value);
+  external set wordBreak(String value);
   external String get wordSpaceTransform;
-  external set wordSpacing(String value);
+  external set wordSpaceTransform(String value);
   external String get wordSpacing;
-  external set wordWrap(String value);
+  external set wordSpacing(String value);
   external String get wordWrap;
-  external set wrapAfter(String value);
+  external set wordWrap(String value);
   external String get wrapAfter;
-  external set wrapBefore(String value);
+  external set wrapAfter(String value);
   external String get wrapBefore;
-  external set wrapFlow(String value);
+  external set wrapBefore(String value);
   external String get wrapFlow;
-  external set wrapInside(String value);
+  external set wrapFlow(String value);
   external String get wrapInside;
-  external set wrapThrough(String value);
+  external set wrapInside(String value);
   external String get wrapThrough;
-  external set writingMode(String value);
+  external set wrapThrough(String value);
   external String get writingMode;
-  external set x(String value);
+  external set writingMode(String value);
   external String get x;
-  external set y(String value);
+  external set x(String value);
   external String get y;
-  external set zIndex(String value);
+  external set y(String value);
   external String get zIndex;
-  external set zoom(String value);
+  external set zIndex(String value);
   external String get zoom;
+  external set zoom(String value);
 }
 @JS()
 external $CSS get CSS;
diff --git a/lib/src/dom/cssom_view.dart b/lib/src/dom/cssom_view.dart
index c7815153..0ec575fb 100644
--- a/lib/src/dom/cssom_view.dart
+++ b/lib/src/dom/cssom_view.dart
@@ -25,8 +25,8 @@ typedef CSSBoxType = String;
 extension type ScrollOptions._(JSObject _) implements JSObject {
   external factory ScrollOptions({ScrollBehavior behavior});
 
-  external set behavior(ScrollBehavior value);
   external ScrollBehavior get behavior;
+  external set behavior(ScrollBehavior value);
 }
 extension type ScrollToOptions._(JSObject _)
     implements ScrollOptions, JSObject {
@@ -36,10 +36,10 @@ extension type ScrollToOptions._(JSObject _)
     num top,
   });
 
-  external set left(num value);
   external num get left;
-  external set top(num value);
+  external set left(num value);
   external num get top;
+  external set top(num value);
 }
 
 /// A **`MediaQueryList`** object stores information on a
@@ -84,10 +84,24 @@ extension type MediaQueryList._(JSObject _) implements EventTarget, JSObject {
   /// Use `removeEventListener()` instead of `removeListener()` if it is
   /// available in the browsers you need to support.
   external void removeListener(EventListener? callback);
+
+  /// The **`media`** read-only property of the
+  /// [MediaQueryList] interface is a string representing a
+  /// serialized media query.
   external String get media;
+
+  /// The **`matches`** read-only property of the
+  /// [MediaQueryList] interface is a boolean value that returns
+  /// `true` if the [document] currently matches the media query list,
+  /// or `false` if not.
+  ///
+  /// You can be notified when the value of `matches` changes by watching for
+  /// the
+  /// [MediaQueryList.change_event] event to be fired at the
+  /// `MediaQueryList`.
   external bool get matches;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
+  external set onchange(EventHandler value);
 }
 
 /// The `MediaQueryListEvent` object stores information on the changes that have
@@ -104,7 +118,15 @@ extension type MediaQueryListEvent._(JSObject _) implements Event, JSObject {
     MediaQueryListEventInit eventInitDict,
   ]);
 
+  /// The **`media`** read-only property of the
+  /// [MediaQueryListEvent] interface is a string representing
+  /// a serialized media query.
   external String get media;
+
+  /// The **`matches`** read-only property of the
+  /// [MediaQueryListEvent] interface is a boolean value that is
+  /// `true` if the [document] currently matches the media query list,
+  /// or `false` if not.
   external bool get matches;
 }
 extension type MediaQueryListEventInit._(JSObject _)
@@ -117,10 +139,10 @@ extension type MediaQueryListEventInit._(JSObject _)
     bool matches,
   });
 
-  external set media(String value);
   external String get media;
-  external set matches(bool value);
+  external set media(String value);
   external bool get matches;
+  external set matches(bool value);
 }
 
 /// The `Screen` interface represents a screen, usually the one on which the
@@ -134,12 +156,42 @@ extension type MediaQueryListEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Screen).
 extension type Screen._(JSObject _) implements JSObject {
+  /// The **`Screen.availWidth`** property returns the amount of
+  /// horizontal space (in pixels) available to the window.
   external int get availWidth;
+
+  /// The read-only [Screen] interface's
+  /// **`availHeight`** property returns the height, in CSS pixels, of
+  /// the space available for Web content on the screen. Since [Screen] is
+  /// exposed on the [Window] interface's [Window.screen]
+  /// property, you access `availHeight` using `window.screen.availHeight`.
+  ///
+  /// You can similarly use [Screen.availWidth] to get the number of pixels
+  /// which are horizontally available to the browser for its use.
   external int get availHeight;
+
+  /// The **`Screen.width`** read-only property returns the width of
+  /// the screen in CSS pixels.
   external int get width;
+
+  /// The **`Screen.height`** read-only property returns the height
+  /// of the screen in pixels.
   external int get height;
+
+  /// The **`Screen.colorDepth`** read-only property returns the
+  /// color depth of the screen. Per the CSSOM, some implementations return `24`
+  /// for compatibility reasons. See the browser compatibility section for those
+  /// that don't.
   external int get colorDepth;
+
+  /// Returns the bit depth of the screen. Per the CSSOM, some implementations
+  /// return `24` for compatibility reasons. See the
+  /// [browser compatibility](#browser_compatibility) section for those that
+  /// don't.
   external int get pixelDepth;
+
+  /// The **`orientation`** read-only property of the
+  /// [Screen] interface returns the current orientation of the screen.
   external ScreenOrientation get orientation;
 }
 
@@ -164,10 +216,10 @@ extension type ScrollIntoViewOptions._(JSObject _)
     ScrollLogicalPosition inline,
   });
 
-  external set block(ScrollLogicalPosition value);
   external ScrollLogicalPosition get block;
-  external set inline(ScrollLogicalPosition value);
+  external set block(ScrollLogicalPosition value);
   external ScrollLogicalPosition get inline;
+  external set inline(ScrollLogicalPosition value);
 }
 extension type CheckVisibilityOptions._(JSObject _) implements JSObject {
   external factory CheckVisibilityOptions({
@@ -178,16 +230,16 @@ extension type CheckVisibilityOptions._(JSObject _) implements JSObject {
     bool visibilityProperty,
   });
 
-  external set checkOpacity(bool value);
   external bool get checkOpacity;
-  external set checkVisibilityCSS(bool value);
+  external set checkOpacity(bool value);
   external bool get checkVisibilityCSS;
-  external set contentVisibilityAuto(bool value);
+  external set checkVisibilityCSS(bool value);
   external bool get contentVisibilityAuto;
-  external set opacityProperty(bool value);
+  external set contentVisibilityAuto(bool value);
   external bool get opacityProperty;
-  external set visibilityProperty(bool value);
+  external set opacityProperty(bool value);
   external bool get visibilityProperty;
+  external set visibilityProperty(bool value);
 }
 extension type BoxQuadOptions._(JSObject _) implements JSObject {
   external factory BoxQuadOptions({
@@ -195,10 +247,10 @@ extension type BoxQuadOptions._(JSObject _) implements JSObject {
     GeometryNode relativeTo,
   });
 
-  external set box(CSSBoxType value);
   external CSSBoxType get box;
-  external set relativeTo(GeometryNode value);
+  external set box(CSSBoxType value);
   external GeometryNode get relativeTo;
+  external set relativeTo(GeometryNode value);
 }
 extension type ConvertCoordinateOptions._(JSObject _) implements JSObject {
   external factory ConvertCoordinateOptions({
@@ -206,10 +258,10 @@ extension type ConvertCoordinateOptions._(JSObject _) implements JSObject {
     CSSBoxType toBox,
   });
 
-  external set fromBox(CSSBoxType value);
   external CSSBoxType get fromBox;
-  external set toBox(CSSBoxType value);
+  external set fromBox(CSSBoxType value);
   external CSSBoxType get toBox;
+  external set toBox(CSSBoxType value);
 }
 
 /// The **`VisualViewport`** interface of the [Visual Viewport API] represents
@@ -231,17 +283,49 @@ extension type ConvertCoordinateOptions._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/VisualViewport).
 extension type VisualViewport._(JSObject _) implements EventTarget, JSObject {
+  /// The **`offsetLeft`** read-only property of the [VisualViewport] interface
+  /// returns the offset of the left edge of the visual viewport from the left
+  /// edge of the layout viewport in CSS pixels, or `0` if current document is
+  /// not fully active.
   external num get offsetLeft;
+
+  /// The **`offsetTop`** read-only property of the [VisualViewport] interface
+  /// returns the offset of the top edge of the visual viewport from the top
+  /// edge of the layout viewport in CSS pixels, or `0` if current document is
+  /// not fully active.
   external num get offsetTop;
+
+  /// The **`pageLeft`** read-only property of the [VisualViewport] interface
+  /// returns the x coordinate of the left edge of the visual viewport relative
+  /// to the initial containing block origin, in CSS pixels, or `0` if current
+  /// document is not fully active.
   external num get pageLeft;
+
+  /// The **`pageTop`** read-only property of the [VisualViewport] interface
+  /// returns the y coordinate of the top edge of the visual viewport relative
+  /// to the initial containing block origin, in CSS pixels, or `0` if current
+  /// document is not fully active.
   external num get pageTop;
+
+  /// The **`width`** read-only property of the [VisualViewport] interface
+  /// returns the width of the visual viewport, in CSS pixels, or `0` if current
+  /// document is not fully active.
   external num get width;
+
+  /// The **`height`** read-only property of the [VisualViewport] interface
+  /// returns the height of the visual viewport, in CSS pixels, or `0` if
+  /// current document is not fully active.
   external num get height;
+
+  /// The **`scale`** read-only property of the [VisualViewport] interface
+  /// returns the pinch-zoom scaling factor applied to the visual viewport, or
+  /// `0` if current document is not fully active, or `1` if there is no output
+  /// device.
   external num get scale;
-  external set onresize(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
+  external set onscrollend(EventHandler value);
 }
diff --git a/lib/src/dom/dom.dart b/lib/src/dom/dom.dart
index 40a25a71..53e5f4dd 100644
--- a/lib/src/dom/dom.dart
+++ b/lib/src/dom/dom.dart
@@ -153,20 +153,138 @@ extension type Event._(JSObject _) implements JSObject {
     bool bubbles,
     bool cancelable,
   ]);
+
+  /// The **`type`** read-only property of the [Event]
+  /// interface returns a string containing the event's type. It is set when the
+  /// event is
+  /// constructed and is the name commonly used to refer to the specific event,
+  /// such as
+  /// `click`, `load`, or `error`.
   external String get type;
+
+  /// The read-only **`target`** property of the
+  /// [Event] interface is a reference to the object onto which the event was
+  /// dispatched. It is different from [Event.currentTarget] when the event
+  /// handler is called during the bubbling or capturing phase of the event.
   external EventTarget? get target;
+
+  /// The deprecated **`Event.srcElement`** is an alias for the [Event.target]
+  /// property. Use [Event.target] instead.
   external EventTarget? get srcElement;
+
+  /// The **`currentTarget`** read-only property of the [Event] interface
+  /// identifies the element to which the event handler has been attached.
+  ///
+  /// This will not always be the same as the element on which the event was
+  /// fired, because the event may have fired on a descendant of the element
+  /// with the handler, and then
+  /// [bubbled](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Events#event_bubbling)
+  /// up to the element with the handler. The element on which the event was
+  /// fired is given by [Event.target].
   external EventTarget? get currentTarget;
+
+  /// The **`eventPhase`** read-only property of the
+  /// [Event] interface indicates which phase of the event flow is currently
+  /// being evaluated.
   external int get eventPhase;
-  external set cancelBubble(bool value);
+
+  /// The **`cancelBubble`** property of the [Event]
+  /// interface is deprecated. Use [Event.stopPropagation] instead.
+  /// Setting its value to `true` before returning from an event handler
+  /// prevents propagation
+  /// of the event. In later implementations, setting this to `false` does
+  /// nothing.
+  /// See [Browser compatibility](#browser_compatibility) for details.
   external bool get cancelBubble;
+  external set cancelBubble(bool value);
+
+  /// The **`bubbles`** read-only property of the [Event] interface indicates
+  /// whether the event bubbles up through the DOM tree or not.
+  ///
+  /// > **Note:** See
+  /// > [Event bubbling and capture](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Building_blocks/Events#event_bubbling)
+  /// > for more information on bubbling.
   external bool get bubbles;
+
+  /// The **`cancelable`** read-only property of the [Event] interface indicates
+  /// whether the event
+  /// can be canceled, and therefore prevented as if the event never happened.
+  ///
+  /// If the event is _not_ cancelable, then its `cancelable` property will be
+  /// `false` and the event listener cannot stop the event from occurring.
+  ///
+  /// Most browser-native events that can be canceled are the ones that result
+  /// from the user
+  /// interacting with the page. Canceling the [Element.click_event],
+  /// [Element.wheel_event], or
+  /// [Window.beforeunload_event] events would prevent the user
+  /// from clicking on something, scrolling the page with the mouse wheel, or
+  /// navigating away from the page, respectively.
+  ///
+  /// [Synthetic events](https://developer.mozilla.org/en-US/docs/Web/API/Event/Event)
+  /// created by other JavaScript
+  /// code define if they can be canceled when they are created.
+  ///
+  /// To cancel an event, call the [event.preventDefault]
+  /// method on the event. This keeps the implementation from executing the
+  /// default action
+  /// that is associated with the event.
+  ///
+  /// Event listeners that handle multiple kinds of events may want to check
+  /// `cancelable` before invoking their [event.preventDefault] methods.
   external bool get cancelable;
-  external set returnValue(bool value);
+
+  /// The [Event] property
+  /// **`returnValue`** indicates whether the default action for
+  /// this event has been prevented or not.
+  ///
+  /// It is set to `true` by
+  /// default, allowing the default action to occur. Setting this property to
+  /// `false` prevents the default action.
+  ///
+  /// > **Note:** While `returnValue` has been adopted into the DOM
+  /// > standard, it is present primarily to support existing code. Use
+  /// > [Event.preventDefault], and
+  /// > [Event.defaultPrevented] instead of this historical
+  /// > property.
   external bool get returnValue;
+  external set returnValue(bool value);
+
+  /// The **`defaultPrevented`** read-only property of the [Event] interface
+  /// returns a boolean value indicating whether or not the call to
+  /// [Event.preventDefault] canceled the event.
   external bool get defaultPrevented;
+
+  /// The read-only **`composed`** property of the
+  /// [Event] interface returns a boolean value which indicates whether
+  /// or not the event will propagate across the shadow DOM boundary into the
+  /// standard DOM.
+  ///
+  /// All UA-dispatched UI events are composed
+  /// (click/touch/mouseover/copy/paste, etc.). Most
+  /// other types of events are not composed, and so will return `false`. For
+  /// example, this includes synthetic events that are created without their
+  /// `composed` option set to `true`.
+  ///
+  /// Propagation only occurs if the [Event.bubbles] property is also
+  /// `true`. However, capturing only composed events are also handled at host
+  /// as
+  /// if they were in `AT_TARGET` phase. You can determine the path the event
+  /// will
+  /// follow through the shadow root to the DOM root by calling
+  /// [Event.composedPath].
   external bool get composed;
+
+  /// The **`isTrusted`** read-only property of the
+  /// [Event] interface is a boolean value that is `true`
+  /// when the event was generated by a user action, and `false` when the event
+  /// was
+  /// created or modified by a script or dispatched via
+  /// [EventTarget.dispatchEvent].
   external bool get isTrusted;
+
+  /// The **`timeStamp`** read-only property of the [Event] interface returns
+  /// the time (in milliseconds) at which the event was created.
   external DOMHighResTimeStamp get timeStamp;
 }
 extension type EventInit._(JSObject _) implements JSObject {
@@ -176,12 +294,12 @@ extension type EventInit._(JSObject _) implements JSObject {
     bool composed,
   });
 
-  external set bubbles(bool value);
   external bool get bubbles;
-  external set cancelable(bool value);
+  external set bubbles(bool value);
   external bool get cancelable;
-  external set composed(bool value);
+  external set cancelable(bool value);
   external bool get composed;
+  external set composed(bool value);
 }
 
 /// The **`CustomEvent`** interface represents events initialized by an
@@ -227,6 +345,9 @@ extension type CustomEvent._(JSObject _) implements Event, JSObject {
     bool cancelable,
     JSAny? detail,
   ]);
+
+  /// The read-only **`detail`** property of the [CustomEvent] interface
+  /// returns any data passed when initializing the event.
   external JSAny? get detail;
 }
 extension type CustomEventInit._(JSObject _) implements EventInit, JSObject {
@@ -237,8 +358,8 @@ extension type CustomEventInit._(JSObject _) implements EventInit, JSObject {
     JSAny? detail,
   });
 
-  external set detail(JSAny? value);
   external JSAny? get detail;
+  external set detail(JSAny? value);
 }
 
 /// The **`EventTarget`** interface is implemented by objects that can receive
@@ -379,8 +500,8 @@ extension type EventTarget._(JSObject _) implements JSObject {
 extension type EventListenerOptions._(JSObject _) implements JSObject {
   external factory EventListenerOptions({bool capture});
 
-  external set capture(bool value);
   external bool get capture;
+  external set capture(bool value);
 }
 extension type AddEventListenerOptions._(JSObject _)
     implements EventListenerOptions, JSObject {
@@ -391,12 +512,12 @@ extension type AddEventListenerOptions._(JSObject _)
     AbortSignal signal,
   });
 
-  external set passive(bool value);
   external bool get passive;
-  external set once(bool value);
+  external set passive(bool value);
   external bool get once;
-  external set signal(AbortSignal value);
+  external set once(bool value);
   external AbortSignal get signal;
+  external set signal(AbortSignal value);
 }
 
 /// The **`AbortController`** interface represents a controller object that
@@ -419,6 +540,10 @@ extension type AbortController._(JSObject _) implements JSObject {
   /// [fetch requests](https://developer.mozilla.org/en-US/docs/Web/API/fetch),
   /// the consumption of any response bodies, or streams.
   external void abort([JSAny? reason]);
+
+  /// The **`signal`** read-only property of the [AbortController] interface
+  /// returns an [AbortSignal] object instance, which can be used to communicate
+  /// with/abort an asynchronous operation as desired.
   external AbortSignal get signal;
 }
 
@@ -447,10 +572,23 @@ extension type AbortSignal._(JSObject _) implements EventTarget, JSObject {
   /// This method can also be used to abort operations at particular points in
   /// code, rather than passing to functions that take a signal.
   external void throwIfAborted();
+
+  /// The **`aborted`** read-only property returns a value that indicates
+  /// whether the asynchronous operations the signal is communicating with are
+  /// aborted (`true`) or not (`false`).
   external bool get aborted;
+
+  /// The **`reason`** read-only property returns a JavaScript value that
+  /// indicates the abort reason.
+  ///
+  /// The property is `undefined` when the signal has not been aborted.
+  /// It can be set to a specific value when the signal is aborted, using
+  /// [AbortController.abort] or [AbortSignal.abort_static].
+  /// If not explicitly set in those methods, it defaults to "AbortError"
+  /// [DOMException].
   external JSAny? get reason;
-  external set onabort(EventHandler value);
   external EventHandler get onabort;
+  external set onabort(EventHandler value);
 }
 
 /// **`NodeList`** objects are collections of
@@ -476,6 +614,9 @@ extension type NodeList._(JSObject _) implements JSObject {
   /// no
   /// argument is provided.
   external Node? item(int index);
+
+  /// The **`NodeList.length`** property returns the number of items
+  /// in a [NodeList].
   external int get length;
 }
 
@@ -523,6 +664,9 @@ extension type HTMLCollection._(JSObject _) implements JSObject {
   /// In JavaScript, using the array bracket syntax with a `String`, like
   /// `collection["value"]` is equivalent to `collection.namedItem("value")`.
   external Element? namedItem(String name);
+
+  /// The **`HTMLCollection.length`** property returns the number of
+  /// items in a [HTMLCollection].
   external int get length;
 }
 
@@ -588,20 +732,20 @@ extension type MutationObserverInit._(JSObject _) implements JSObject {
     JSArray<JSString> attributeFilter,
   });
 
-  external set childList(bool value);
   external bool get childList;
-  external set attributes(bool value);
+  external set childList(bool value);
   external bool get attributes;
-  external set characterData(bool value);
+  external set attributes(bool value);
   external bool get characterData;
-  external set subtree(bool value);
+  external set characterData(bool value);
   external bool get subtree;
-  external set attributeOldValue(bool value);
+  external set subtree(bool value);
   external bool get attributeOldValue;
-  external set characterDataOldValue(bool value);
+  external set attributeOldValue(bool value);
   external bool get characterDataOldValue;
-  external set attributeFilter(JSArray<JSString> value);
+  external set characterDataOldValue(bool value);
   external JSArray<JSString> get attributeFilter;
+  external set attributeFilter(JSArray<JSString> value);
 }
 
 /// The [MutationRecord] is a read-only interface that represents an individual
@@ -613,14 +757,50 @@ extension type MutationObserverInit._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/MutationRecord).
 extension type MutationRecord._(JSObject _) implements JSObject {
+  /// The [MutationRecord] read-only property **`type`** is the type of the
+  /// [MutationRecord] observed by a [MutationObserver].
   external String get type;
+
+  /// The [MutationRecord] read-only property **`target`** is the target (i.e.
+  /// the mutated/changed node) of a mutation observed with a
+  /// [MutationObserver].
   external Node get target;
+
+  /// The [MutationRecord] read-only property **`addedNodes`** is a [NodeList]
+  /// of nodes added to a target node by a mutation observed with a
+  /// [MutationObserver].
   external NodeList get addedNodes;
+
+  /// The [MutationRecord] read-only property **`removedNodes`** is a [NodeList]
+  /// of nodes removed from a target node by a mutation observed with a
+  /// [MutationObserver].
   external NodeList get removedNodes;
+
+  /// The [MutationRecord] read-only property **`previousSibling`** is the
+  /// previous sibling of an added or removed child node of the
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/API/MutationRecord/target)
+  /// of a [MutationObserver].
   external Node? get previousSibling;
+
+  /// The [MutationRecord] read-only property **`nextSibling`** is the next
+  /// sibling of an added or removed child node of the
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/API/MutationRecord/target)
+  /// of a [MutationObserver].
   external Node? get nextSibling;
+
+  /// The [MutationRecord] read-only property **`attributeName`** contains the
+  /// name of a changed attribute belonging to a node that is observed by a
+  /// [MutationObserver].
   external String? get attributeName;
+
+  /// The [MutationRecord] read-only property **`attributeNamespace`** is the
+  /// namespace of the mutated attribute in the [MutationRecord] observed by a
+  /// [MutationObserver].
   external String? get attributeNamespace;
+
+  /// The [MutationRecord] read-only property **`oldValue`** contains the
+  /// character data or attribute value of an observed node before it was
+  /// changed.
   external String? get oldValue;
 }
 
@@ -843,28 +1023,200 @@ extension type Node._(JSObject _) implements EventTarget, JSObject {
   /// Unlike [Node.cloneNode] the return value preserves the `EventListener`
   /// objects associated with it.
   external Node removeChild(Node child);
+
+  /// The read-only **`nodeType`** property of a [Node] interface is an integer
+  /// that identifies what the node is. It distinguishes different kind of nodes
+  /// from each other,
+  /// such as [Element], [Text] and [Comment].
   external int get nodeType;
+
+  /// The read-only **`nodeName`** property of [Node] returns the name of the
+  /// current node as a string.
   external String get nodeName;
+
+  /// The read-only **`baseURI`** property of the [Node] interface
+  /// returns the absolute base URL of the document containing the node.
+  ///
+  /// The base URL is used to resolve relative URLs when the browser needs to
+  /// obtain an absolute URL, for example when processing the HTML `img`
+  /// element's `src` attribute or the `xlink:href`  or `href` attributes in
+  /// SVG.
+  ///
+  /// Although this property is read-only, its value is determined by an
+  /// algorithm each time
+  /// the property is accessed, and may change if the conditions changed.
+  ///
+  /// The base URL is determined as follows:
+  ///
+  /// 1. By default, the base URL is the location of the document (as determined
+  /// by [window.location]).
+  /// 2. If it is an HTML Document and there is a `Base` element in the
+  /// document,
+  /// the `href` value of the _first_ `Base` element with such an attribute is
+  /// used instead.
   external String get baseURI;
+
+  /// The read-only **`isConnected`** property of the [Node] interface
+  /// returns a boolean indicating whether the node is connected
+  /// (directly or indirectly) to a [Document] object.
   external bool get isConnected;
+
+  /// The read-only **`ownerDocument`** property of the [Node] interface
+  /// returns the top-level document object of the node.
   external Document? get ownerDocument;
+
+  /// The read-only **`parentNode`** property of the [Node] interface
+  /// returns the parent of the specified node in the DOM tree.
+  ///
+  /// `Document` and `DocumentFragment`
+  /// [nodes](https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType)
+  /// can never have a parent, so
+  /// `parentNode` will always return `null`.
+  /// It also returns `null` if the node has just been created
+  /// and is not yet attached to the tree.
   external Node? get parentNode;
+
+  /// The read-only **`parentElement`** property of [Node] interface
+  /// returns the DOM node's parent [Element], or `null` if the node either has
+  /// no
+  /// parent, or its parent isn't a DOM [Element].
   external Element? get parentElement;
+
+  /// The read-only **`childNodes`** property of the [Node] interface returns a
+  /// live
+  /// [NodeList] of child [Node] of the given element where
+  /// the first child node is assigned index `0`. Child nodes include elements,
+  /// text and
+  /// comments.
+  ///
+  /// > **Note:** The [NodeList] being live means that its content is changed
+  /// > each time
+  /// > new children are added or removed.
+  /// >
+  /// > Browsers insert text nodes into a document to represent whitespace in
+  /// > the source markup.
+  /// > Therefore a node obtained, for example, using `Node.childNodes[0]`
+  /// > may refer to a whitespace text node rather than the actual element the
+  /// > author intended to get.
+  /// >
+  /// > See
+  /// > [Whitespace in the DOM](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Whitespace)
+  /// > for more information.
+  ///
+  /// The items in the collection of nodes are objects, not strings. To get data
+  /// from node
+  /// objects, use their properties. For example, to get the name of the first
+  /// childNode, you can use `elementNodeReference.childNodes[0].nodeName`.
+  ///
+  /// The [document] object itself has two children: the Doctype declaration and
+  /// the
+  /// root element, typically referred to as `documentElement`. In HTML
+  /// documents the latter is the `html` element.
+  ///
+  /// It is important to keep in mind that `childNodes` includes _all_ child
+  /// nodes,
+  /// including non-element nodes like text and comment.
+  /// To get a collection containing only elements, use [Element.children]
+  /// instead.
   external NodeList get childNodes;
+
+  /// The read-only **`firstChild`** property of the [Node] interface
+  /// returns the node's first child in the tree,
+  /// or `null` if the node has no children.
+  ///
+  /// If the node is a [Document],
+  /// this property returns the first node in the list of its direct children.
+  ///
+  /// > **Note:** This property returns any type of node that is the first child
+  /// > of this one.
+  /// > It may be a [Text] or a [Comment] node.
+  /// > If you want to get the first [Element] that is a child of another
+  /// > element,
+  /// > consider using [Element.firstElementChild].
   external Node? get firstChild;
+
+  /// The read-only **`lastChild`** property of the [Node] interface
+  /// returns the last child of the node, or `null` if there are no child nodes.
+  ///
+  /// > **Note:** This property returns any type of node that is the last child
+  /// > of this one.
+  /// > It may be a [Text] or a [Comment] node.
+  /// > If you want to get the last [Element] that is a child of another
+  /// > element,
+  /// > consider using [Element.lastElementChild].
   external Node? get lastChild;
+
+  /// The read-only **`previousSibling`** property of the [Node] interface
+  /// returns the node immediately preceding the specified one in its parent's
+  /// [Node.childNodes] list,
+  /// or `null` if the specified node is the first in that list.
+  ///
+  /// > **Note:** Browsers insert text nodes into a document to represent
+  /// > whitespace in the source markup.
+  /// > Therefore a node obtained, for example, using
+  /// > [`Node.firstChild`](https://developer.mozilla.org/en-US/docs/Web/API/Node/firstChild)
+  /// > or `Node.previousSibling`
+  /// > may refer to a whitespace text node rather than the actual element the
+  /// > author intended to get.
+  /// >
+  /// > See
+  /// > [Whitespace in the DOM](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Whitespace)
+  /// > for more information.
+  /// >
+  /// > You can use
+  /// > [`previousElementSibling`](https://developer.mozilla.org/en-US/docs/Web/API/Element/previousElementSibling)
+  /// > to get the previous element node (skipping text nodes and any other
+  /// > non-element nodes).
+  /// >
+  /// > To navigate the opposite way through the child nodes list use
+  /// > [Node.nextSibling](https://developer.mozilla.org/en-US/docs/Web/API/Node/nextSibling).
   external Node? get previousSibling;
+
+  /// The read-only **`nextSibling`** property of the [Node] interface
+  /// returns the node immediately following the specified one in their
+  /// parent's [Node.childNodes], or returns `null`
+  /// if the specified node is the last child in the parent element.
+  ///
+  /// > **Note:** Browsers insert [Text] nodes into a document to represent
+  /// > whitespace in the source markup.
+  /// > Therefore a node obtained, for example, using
+  /// > [`Node.firstChild`](https://developer.mozilla.org/en-US/docs/Web/API/Node/firstChild)
+  /// > or
+  /// > [`Node.previousSibling`](https://developer.mozilla.org/en-US/docs/Web/API/Node/previousSibling)
+  /// > may refer to a whitespace text node rather than the actual element the
+  /// > author
+  /// > intended to get.
+  /// >
+  /// > The article
+  /// > [Whitespace in the DOM](https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Whitespace)
+  /// > contains more information about this behavior.
+  /// >
+  /// > You can use [Element.nextElementSibling] to obtain the next element
+  /// > skipping any whitespace nodes, other between-element text, or comments.
+  /// >
+  /// > To navigate the opposite way through the child nodes list use
+  /// > [Node.previousSibling](https://developer.mozilla.org/en-US/docs/Web/API/Node/previousSibling).
   external Node? get nextSibling;
-  external set nodeValue(String? value);
+
+  /// The **`nodeValue`** property of the [Node] interface returns or sets the
+  /// value of the current node.
   external String? get nodeValue;
-  external set textContent(String? value);
+  external set nodeValue(String? value);
+
+  /// The **`textContent`** property of the [Node]
+  /// interface represents the text content of the node and its descendants.
+  ///
+  /// > **Note:** `textContent` and [HTMLElement.innerText] are easily confused,
+  /// > but the two properties are
+  /// > [different in important ways](#differences_from_innertext).
   external String? get textContent;
+  external set textContent(String? value);
 }
 extension type GetRootNodeOptions._(JSObject _) implements JSObject {
   external factory GetRootNodeOptions({bool composed});
 
-  external set composed(bool value);
   external bool get composed;
+  external set composed(bool value);
 }
 @JS()
 external Document get document;
@@ -1372,272 +1724,652 @@ extension type Document._(JSObject _) implements Node, JSObject {
     int type,
     XPathResult? result,
   ]);
+
+  /// **`Document.rootElement`** returns the [Element]
+  /// that is the root element of the [document] if it is an
+  /// element, otherwise `null`. It is deprecated in favor of
+  /// [Document.documentElement], which returns the root element for all
+  /// documents.
   external SVGSVGElement? get rootElement;
+
+  /// The **`scrollingElement`** read-only property of the
+  /// [Document] interface returns a reference to the [Element] that
+  /// scrolls the document. In standards mode, this is the root element of the
+  /// document, [document.documentElement].
+  ///
+  /// When in quirks mode, the `scrollingElement` attribute returns the HTML
+  /// `body` element if it exists and is
+  /// [potentially scrollable](https://drafts.csswg.org/cssom-view/#potentially-scrollable),
+  /// otherwise it returns null.
   external Element? get scrollingElement;
+
+  /// The **`Document.implementation`** property returns a
+  /// [DOMImplementation] object associated with the current document.
   external DOMImplementation get implementation;
+
+  /// The **`URL`** read-only property of the [Document]
+  /// interface returns the document location as a string.
   external String get URL;
+
+  /// The **`documentURI`** read-only property of the
+  /// [Document] interface returns the document location as a string.
   external String get documentURI;
+
+  /// The **`Document.compatMode`** read-only property indicates
+  /// whether the document is rendered in
+  /// [Quirks mode](https://developer.mozilla.org/en-US/docs/Web/HTML/Quirks_Mode_and_Standards_Mode)
+  /// or
+  /// Standards mode.
   external String get compatMode;
+
+  /// The **`Document.characterSet`**
+  /// read-only property returns the
+  /// [character encoding](https://developer.mozilla.org/en-US/docs/Glossary/Character_encoding)
+  /// of the
+  /// document that it's currently rendered with.
+  ///
+  /// > **Note:** A "character set" and a "character encoding" are related, but
+  /// > different. Despite the
+  /// > name of this property, it returns the _encoding_.
+  ///
+  /// Users can override the developer-specified encoding inside the
+  /// [Content-Type](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Type)
+  /// header or inline
+  /// like `<meta charset="utf-8">`, such as with Firefox's <kbd>View → Text
+  /// Encoding</kbd> menu. This override is provided to fix incorrect
+  /// developer-specified
+  /// encodings that result in
+  /// [garbled text](https://en.wikipedia.org/wiki/Mojibake).
+  ///
+  /// > **Note:** The properties `document.charset` and `document.inputEncoding`
+  /// > are legacy aliases for `document.characterSet`. Do not use them any
+  /// > more.
   external String get characterSet;
   external String get charset;
   external String get inputEncoding;
+
+  /// The **`Document.contentType`** read-only property returns the
+  /// MIME type that the document is being rendered as. This may come from HTTP
+  /// headers or
+  /// other sources of MIME information, and might be affected by automatic type
+  /// conversions
+  /// performed by either the browser or extensions.
+  ///
+  /// > **Note:** This property is unaffected by `meta`
+  /// > elements.
   external String get contentType;
+
+  /// Returns the Document Type Declaration (DTD) associated with current
+  /// document. The
+  /// returned object implements the [DocumentType] interface. Use
+  /// [DOMImplementation.createDocumentType] to create a
+  /// `DocumentType`.
+  ///
+  /// - `doctype` is a read-only property.
   external DocumentType? get doctype;
+
+  /// **`Document.documentElement`** returns the
+  /// [Element] that is the root element of the [document] (for
+  /// example, the `html` element for HTML documents).
   external Element? get documentElement;
+
+  /// The **`Document.location`** read-only property returns a
+  /// [Location] object, which contains information about the URL of the
+  /// document
+  /// and provides methods for changing that URL and loading another URL.
+  ///
+  /// Though `Document.location` is a _read-only_ `Location`
+  /// object, you can also assign a string to it. This means that you can
+  /// work with document.location as if it were a string in most cases:
+  /// `document.location = 'http://www.example.com'` is a synonym of
+  /// `document.location.href = 'http://www.example.com'`. If you assign another
+  /// string to it, browser will load the website you assigned.
+  ///
+  /// To retrieve just the URL as a string, the read-only [document.URL]
+  /// property can also be used.
+  ///
+  /// If the current document is not in a browsing context, the returned value
+  /// is
+  /// `null`.
   external Location? get location;
-  external set domain(String value);
+
+  /// The **`domain`** property of the [Document]
+  /// interface gets/sets the domain portion of the  of the current
+  /// document, as used by the
+  /// [same-origin policy](https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy).
   external String get domain;
+  external set domain(String value);
+
+  /// The **`Document.referrer`** property returns the
+  /// [URI](https://www.w3.org/Addressing/#background) of the page that linked
+  /// to
+  /// this page.
   external String get referrer;
-  external set cookie(String value);
+
+  /// The [Document] property `cookie` lets you read and write
+  /// [cookies](https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies)
+  /// associated with the document.
+  /// It serves as a getter and setter for the actual values of the cookies.
   external String get cookie;
+  external set cookie(String value);
+
+  /// The **`lastModified`** property of the [Document]
+  /// interface returns a string containing the date and local time on which the
+  /// current document
+  /// was last modified.
   external String get lastModified;
+
+  /// The **`Document.readyState`** property describes the loading state of the
+  /// [document].
+  /// When the value of this property changes, a
+  /// [Document.readystatechange_event] event fires on the [document] object.
   external DocumentReadyState get readyState;
-  external set title(String value);
+
+  /// The **`document.title`** property gets or sets the current title of the
+  /// document.
+  /// When present, it defaults to the value of the
+  /// [`<title>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/title).
   external String get title;
-  external set dir(String value);
+  external set title(String value);
+
+  /// The **`Document.dir`** property is a string
+  /// representing the directionality of the text of the document, whether left
+  /// to right
+  /// (default) or right to left. Possible values are `'rtl'`, right to left,
+  /// and
+  /// `'ltr'`, left to right.
   external String get dir;
-  external set body(HTMLElement? value);
+  external set dir(String value);
+
+  /// The **`Document.body`** property represents the
+  /// `body` or `frameset` node of the current document, or
+  /// `null` if no such element exists.
   external HTMLElement? get body;
+  external set body(HTMLElement? value);
+
+  /// The **`head`** read-only property of
+  /// the [Document] interface returns the `head` element of
+  /// the current document.
   external HTMLHeadElement? get head;
+
+  /// The **`images`** read-only property of
+  /// the [Document] interface returns a
+  /// [collection](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCollection)
+  /// of the
+  /// [images](https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/Image)
+  /// in the current HTML document.
   external HTMLCollection get images;
+
+  /// The **`embeds`** read-only property of the
+  /// [Document] interface returns a list of the embedded
+  /// `embed` elements within the current document.
   external HTMLCollection get embeds;
+
+  /// The **`plugins`** read-only property of the
+  /// [Document] interface returns an [HTMLCollection] object
+  /// containing one or more [HTMLEmbedElement]s representing the
+  /// `embed` elements in the current document.
+  ///
+  /// > **Note:** For a list of installed plugins, use
+  /// > [Navigator.plugins](https://developer.mozilla.org/en-US/docs/Web/API/Navigator/plugins)
+  /// > instead.
   external HTMLCollection get plugins;
+
+  /// The **`links`** read-only property of the [Document] interface returns a
+  /// collection of all `area` elements and `a` elements in a document with a
+  /// value for the
+  /// [href](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#href)
+  /// attribute.
   external HTMLCollection get links;
+
+  /// The **`forms`** read-only property of
+  /// the [Document] interface returns an [HTMLCollection] listing
+  /// all the `form` elements contained in the document.
+  ///
+  /// > **Note:** Similarly, you can access a list of a form's component user
+  /// > input elements using the [HTMLFormElement.elements] property.
   external HTMLCollection get forms;
+
+  /// The **`scripts`** property of the [Document]
+  /// interface returns a list of the `script`
+  /// elements in the document. The returned object is an
+  /// [HTMLCollection].
   external HTMLCollection get scripts;
+
+  /// The **`Document.currentScript`** property returns the `script` element
+  /// whose script is currently being processed and [isn't a JavaScript
+  /// module](https://github.com/whatwg/html/issues/997). (For modules use
+  /// [`import.meta`](/en-US/docs/Web/JavaScript/Reference/Operators/import.meta)
+  /// instead.)
+  ///
+  /// It's important to note that this will not reference the `script`
+  /// element if the code in the script is being called as a callback or event
+  /// handler; it
+  /// will only reference the element while it's initially being processed.
   external HTMLOrSVGScriptElement? get currentScript;
+
+  /// In browsers, **`document.defaultView`** returns the
+  /// [Window] object associated with , or `null` if none is available.
+  ///
+  /// This property is read-only.
   external Window? get defaultView;
-  external set designMode(String value);
+
+  /// **`document.designMode`** controls whether the entire document
+  /// is editable. Valid values are `"on"` and `"off"`. According to the
+  /// specification, this property is meant to default to `"off"`. Firefox
+  /// follows
+  /// this standard. The earlier versions of Chrome and IE default to
+  /// `"inherit"`.
+  /// Starting in Chrome 43, the default is `"off"` and `"inherit"` is
+  /// no longer supported. In IE6-10, the value is capitalized.
   external String get designMode;
+  external set designMode(String value);
+
+  /// The **`Document.hidden`** read-only property returns a Boolean
+  /// value indicating if the page is considered hidden or not.
+  ///
+  /// The [Document.visibilityState] property provides an alternative way to
+  /// determine whether the page is hidden.
   external bool get hidden;
+
+  /// The **`Document.visibilityState`**
+  /// read-only property returns the visibility of the document. It can be used
+  /// to check whether the document is in the background or in a minimized
+  /// window, or is otherwise not visible to the user.
+  ///
+  /// When the value of this property changes, the
+  /// [Document.visibilitychange_event] event is sent to the [Document].
+  ///
+  /// The [Document.hidden] property provides an alternative way to determine
+  /// whether the page is hidden.
   external DocumentVisibilityState get visibilityState;
-  external set onreadystatechange(EventHandler value);
   external EventHandler get onreadystatechange;
-  external set onvisibilitychange(EventHandler value);
+  external set onreadystatechange(EventHandler value);
   external EventHandler get onvisibilitychange;
-  external set fgColor(String value);
+  external set onvisibilitychange(EventHandler value);
+
+  /// **`fgColor`** gets/sets the foreground color, or text color, of
+  /// the current document.
   external String get fgColor;
-  external set linkColor(String value);
+  external set fgColor(String value);
+
+  /// The **`Document.linkColor`** property gets/sets the color of
+  /// links within the document.
+  ///
+  /// This property is deprecated. As an alternative, you can set the CSS
+  /// `color` property on either HTML anchor links (`a`) or on
+  /// pseudo-classes. Another alternative is
+  /// `document.body.link`, although this is [deprecated in HTML
+  /// 4.01](https://www.w3.org/TR/html401/struct/global.html#adef-link).
   external String get linkColor;
-  external set vlinkColor(String value);
+  external set linkColor(String value);
+
+  /// The **`Document.vlinkColor`** property gets/sets the color of
+  /// links that the user has visited in the document.
   external String get vlinkColor;
-  external set alinkColor(String value);
+  external set vlinkColor(String value);
+
+  /// Returns or sets the color of an active link in the document body. A link
+  /// is active
+  /// during the time between `mousedown` and `mouseup` events.
   external String get alinkColor;
-  external set bgColor(String value);
+  external set alinkColor(String value);
+
+  /// The deprecated `bgColor` property gets or sets the background color of the
+  /// current document.
   external String get bgColor;
+  external set bgColor(String value);
+
+  /// The **`anchors`** read-only property of the
+  /// [Document] interface returns a list of all of the anchors in the document.
   external HTMLCollection get anchors;
+
+  /// The **`applets`** property of the [Document] returns an empty
+  /// [HTMLCollection]. This property is kept only for compatibility reasons; in
+  /// older versions of browsers, it returned a list of the applets within a
+  /// document.
+  ///
+  /// > **Note:** Support for the `<applet>` element has been removed by all
+  /// > browsers. Therefore, calling `document.applets` always
+  /// > returns an empty collection.
   external HTMLCollection get applets;
+
+  /// The [Document] interface's read-only **`all`** property returns an
+  /// [HTMLAllCollection] rooted at the document node.
+  ///
+  /// Rather than using `document.all` to return an [HTMLAllCollection] of all
+  /// the document's elements in document order, you can use
+  /// [Document.querySelectorAll] to return a [NodeList] of all the document's
+  /// elements in document order:
+  ///
+  /// ```js
+  /// const allElements = document.querySelectorAll("*");
+  /// ```
   external HTMLAllCollection get all;
+
+  /// The `timeline` readonly property of the [Document] interface represents
+  /// the default timeline of the current document. This timeline is a special
+  /// instance of [DocumentTimeline].
+  ///
+  /// This timeline is unique to each `document` and persists for the lifetime
+  /// of the `document` including calls to [Document.open].
+  ///
+  /// This timeline expresses the time in milliseconds since
+  /// [Performance.timeOrigin].
+  /// Prior to the time origin, the timeline is inactive, and its
+  /// [AnimationTimeline.currentTime] is `null`.
+  ///
+  /// > **Note:** A document timeline that is associated with a non-active
+  /// > document (a [Document] not associated with a [Window], `iframe`, or
+  /// > `frame`) is also considered to be inactive.
   external DocumentTimeline get timeline;
+
+  /// The **`fonts`** property of the [Document] interface returns the
+  /// [FontFaceSet] interface of the document.
+  ///
+  /// This feature is part of the
+  /// [CSS Font Loading API](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Font_Loading_API).
   external FontFaceSet get fonts;
+
+  /// The **`styleSheets`** read-only property of the [Document] interface
+  /// returns a [StyleSheetList] of [CSSStyleSheet] objects, for stylesheets
+  /// explicitly linked into or embedded in a document.
   external StyleSheetList get styleSheets;
-  external set adoptedStyleSheets(JSArray<CSSStyleSheet> value);
+
+  /// The **`adoptedStyleSheets`** property of the [Document] interface is used
+  /// for setting an array of constructed stylesheets to be used by the
+  /// document.
+  ///
+  /// > **Note:** A constructed stylesheet is a stylesheet created
+  /// > programmatically using the [`CSSStyleSheet()`
+  /// > constructor](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleSheet/CSSStyleSheet)
+  /// > (as compared to one created by a user-agent when importing a stylesheet
+  /// > from a script, imported using `style` and , or linked to via `link`).
+  ///
+  /// The same constructed stylesheets can also be shared with one or more
+  /// [ShadowRoot] instances using the
+  /// [`ShadowRoot.adoptedStyleSheets`](https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot/adoptedStyleSheets)
+  /// property.
+  /// Changing an adopted stylesheet will affect all the objects that adopt it.
+  ///
+  /// Stylesheets in the property are evaluated along with the document's other
+  /// stylesheets using the
+  /// [CSS cascade algorithm](https://developer.mozilla.org/en-US/docs/Web/CSS/Cascade).
+  /// Where the resolution of rules considers stylesheet order,
+  /// `adoptedStyleSheets` are assumed to be ordered after those in
+  /// [`Document.styleSheets`](https://developer.mozilla.org/en-US/docs/Web/API/Document/styleSheets).
+  ///
+  /// Only stylesheets created using the [`CSSStyleSheet()`
+  /// constructor](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleSheet/CSSStyleSheet)
+  /// within the context of the current [Document] may be adopted.
   external JSArray<CSSStyleSheet> get adoptedStyleSheets;
+  external set adoptedStyleSheets(JSArray<CSSStyleSheet> value);
+
+  /// The **`activeElement`** read-only property
+  /// of the [Document] interface returns the [Element] within the DOM that
+  /// currently has focus.
+  ///
+  /// Often `activeElement` will return a [HTMLInputElement] or
+  /// [HTMLTextAreaElement] object if it has the text selection at the time. If
+  /// so, you can get more detail by using the object's `selectionStart` and
+  /// `selectionEnd` properties.
+  /// Other times the focused element might be a `select` element (menu) or
+  /// an `input` element.
+  ///
+  /// Typically a user can press the tab key to move the focus around the page
+  /// among
+  /// focusable elements, and use the space bar to activate one (that is, to
+  /// press a button or
+  /// toggle a radio button). Which elements are focusable varies depending on
+  /// the platform
+  /// and the browser's current configuration. For example, on macOS systems,
+  /// elements that
+  /// aren't text input elements are not typically focusable by default.
+  ///
+  /// > **Note:** Focus (which element is receiving user input events) is not
+  /// > the same thing as selection (the currently highlighted part of the
+  /// > document). You can
+  /// > get the current selection using [window.getSelection].
   external Element? get activeElement;
+
+  /// The read-only **`children`** property returns a live [HTMLCollection]
+  /// which contains all of the child [Element] of the document upon which it
+  /// was called.
+  ///
+  /// For HTML documents, this is usually only the root `<html>` element.
+  ///
+  /// See [Element.children] for child elements of specific HTML elements within
+  /// the document.
   external HTMLCollection get children;
+
+  /// The **`Document.firstElementChild`** read-only property
+  /// returns the document's first child [Element], or `null` if there
+  /// are no child elements.
+  ///
+  /// For HTML documents, this is usually the only child, the root `<html>`
+  /// element.
+  ///
+  /// See [Element.firstElementChild] for the first child element of specific
+  /// elements within a document.
   external Element? get firstElementChild;
+
+  /// The **`Document.lastElementChild`** read-only property
+  /// returns the document's last child [Element], or `null` if there
+  /// are no child elements.
+  ///
+  /// For HTML documents, this is usually the only child, the root `<html>`
+  /// element.
+  ///
+  /// See [Element.lastElementChild] for the last child element of specific
+  /// elements within a document.
   external Element? get lastElementChild;
+
+  /// The **`Document.childElementCount`** read-only property
+  /// returns the number of child elements of the document.
+  ///
+  /// To get the number of children of a specific element, see
+  /// [Element.childElementCount].
   external int get childElementCount;
-  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationstart;
-  external set onanimationiteration(EventHandler value);
+  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationiteration;
-  external set onanimationend(EventHandler value);
+  external set onanimationiteration(EventHandler value);
   external EventHandler get onanimationend;
-  external set onanimationcancel(EventHandler value);
+  external set onanimationend(EventHandler value);
   external EventHandler get onanimationcancel;
-  external set ontransitionrun(EventHandler value);
+  external set onanimationcancel(EventHandler value);
   external EventHandler get ontransitionrun;
-  external set ontransitionstart(EventHandler value);
+  external set ontransitionrun(EventHandler value);
   external EventHandler get ontransitionstart;
-  external set ontransitionend(EventHandler value);
+  external set ontransitionstart(EventHandler value);
   external EventHandler get ontransitionend;
-  external set ontransitioncancel(EventHandler value);
+  external set ontransitionend(EventHandler value);
   external EventHandler get ontransitioncancel;
-  external set onabort(EventHandler value);
+  external set ontransitioncancel(EventHandler value);
   external EventHandler get onabort;
-  external set onauxclick(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onauxclick;
-  external set onbeforeinput(EventHandler value);
+  external set onauxclick(EventHandler value);
   external EventHandler get onbeforeinput;
-  external set onbeforematch(EventHandler value);
+  external set onbeforeinput(EventHandler value);
   external EventHandler get onbeforematch;
-  external set onbeforetoggle(EventHandler value);
+  external set onbeforematch(EventHandler value);
   external EventHandler get onbeforetoggle;
-  external set onblur(EventHandler value);
+  external set onbeforetoggle(EventHandler value);
   external EventHandler get onblur;
-  external set oncancel(EventHandler value);
+  external set onblur(EventHandler value);
   external EventHandler get oncancel;
-  external set oncanplay(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get oncanplay;
-  external set oncanplaythrough(EventHandler value);
+  external set oncanplay(EventHandler value);
   external EventHandler get oncanplaythrough;
-  external set onchange(EventHandler value);
+  external set oncanplaythrough(EventHandler value);
   external EventHandler get onchange;
-  external set onclick(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onclick;
-  external set onclose(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onclose;
-  external set oncontextlost(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get oncontextlost;
-  external set oncontextmenu(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextmenu;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextmenu(EventHandler value);
   external EventHandler get oncontextrestored;
-  external set oncopy(EventHandler value);
+  external set oncontextrestored(EventHandler value);
   external EventHandler get oncopy;
-  external set oncuechange(EventHandler value);
+  external set oncopy(EventHandler value);
   external EventHandler get oncuechange;
-  external set oncut(EventHandler value);
+  external set oncuechange(EventHandler value);
   external EventHandler get oncut;
-  external set ondblclick(EventHandler value);
+  external set oncut(EventHandler value);
   external EventHandler get ondblclick;
-  external set ondrag(EventHandler value);
+  external set ondblclick(EventHandler value);
   external EventHandler get ondrag;
-  external set ondragend(EventHandler value);
+  external set ondrag(EventHandler value);
   external EventHandler get ondragend;
-  external set ondragenter(EventHandler value);
+  external set ondragend(EventHandler value);
   external EventHandler get ondragenter;
-  external set ondragleave(EventHandler value);
+  external set ondragenter(EventHandler value);
   external EventHandler get ondragleave;
-  external set ondragover(EventHandler value);
+  external set ondragleave(EventHandler value);
   external EventHandler get ondragover;
-  external set ondragstart(EventHandler value);
+  external set ondragover(EventHandler value);
   external EventHandler get ondragstart;
-  external set ondrop(EventHandler value);
+  external set ondragstart(EventHandler value);
   external EventHandler get ondrop;
-  external set ondurationchange(EventHandler value);
+  external set ondrop(EventHandler value);
   external EventHandler get ondurationchange;
-  external set onemptied(EventHandler value);
+  external set ondurationchange(EventHandler value);
   external EventHandler get onemptied;
-  external set onended(EventHandler value);
+  external set onemptied(EventHandler value);
   external EventHandler get onended;
-  external set onerror(OnErrorEventHandler value);
+  external set onended(EventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onfocus(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onfocus;
-  external set onformdata(EventHandler value);
+  external set onfocus(EventHandler value);
   external EventHandler get onformdata;
-  external set oninput(EventHandler value);
+  external set onformdata(EventHandler value);
   external EventHandler get oninput;
-  external set oninvalid(EventHandler value);
+  external set oninput(EventHandler value);
   external EventHandler get oninvalid;
-  external set onkeydown(EventHandler value);
+  external set oninvalid(EventHandler value);
   external EventHandler get onkeydown;
-  external set onkeypress(EventHandler value);
+  external set onkeydown(EventHandler value);
   external EventHandler get onkeypress;
-  external set onkeyup(EventHandler value);
+  external set onkeypress(EventHandler value);
   external EventHandler get onkeyup;
-  external set onload(EventHandler value);
+  external set onkeyup(EventHandler value);
   external EventHandler get onload;
-  external set onloadeddata(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onloadeddata;
-  external set onloadedmetadata(EventHandler value);
+  external set onloadeddata(EventHandler value);
   external EventHandler get onloadedmetadata;
-  external set onloadstart(EventHandler value);
+  external set onloadedmetadata(EventHandler value);
   external EventHandler get onloadstart;
-  external set onmousedown(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onmousedown;
-  external set onmouseenter(EventHandler value);
+  external set onmousedown(EventHandler value);
   external EventHandler get onmouseenter;
-  external set onmouseleave(EventHandler value);
+  external set onmouseenter(EventHandler value);
   external EventHandler get onmouseleave;
-  external set onmousemove(EventHandler value);
+  external set onmouseleave(EventHandler value);
   external EventHandler get onmousemove;
-  external set onmouseout(EventHandler value);
+  external set onmousemove(EventHandler value);
   external EventHandler get onmouseout;
-  external set onmouseover(EventHandler value);
+  external set onmouseout(EventHandler value);
   external EventHandler get onmouseover;
-  external set onmouseup(EventHandler value);
+  external set onmouseover(EventHandler value);
   external EventHandler get onmouseup;
-  external set onpaste(EventHandler value);
+  external set onmouseup(EventHandler value);
   external EventHandler get onpaste;
-  external set onpause(EventHandler value);
+  external set onpaste(EventHandler value);
   external EventHandler get onpause;
-  external set onplay(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onplay;
-  external set onplaying(EventHandler value);
+  external set onplay(EventHandler value);
   external EventHandler get onplaying;
-  external set onprogress(EventHandler value);
+  external set onplaying(EventHandler value);
   external EventHandler get onprogress;
-  external set onratechange(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onratechange;
-  external set onreset(EventHandler value);
+  external set onratechange(EventHandler value);
   external EventHandler get onreset;
-  external set onresize(EventHandler value);
+  external set onreset(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
-  external set onsecuritypolicyviolation(EventHandler value);
+  external set onscrollend(EventHandler value);
   external EventHandler get onsecuritypolicyviolation;
-  external set onseeked(EventHandler value);
+  external set onsecuritypolicyviolation(EventHandler value);
   external EventHandler get onseeked;
-  external set onseeking(EventHandler value);
+  external set onseeked(EventHandler value);
   external EventHandler get onseeking;
-  external set onselect(EventHandler value);
+  external set onseeking(EventHandler value);
   external EventHandler get onselect;
-  external set onslotchange(EventHandler value);
+  external set onselect(EventHandler value);
   external EventHandler get onslotchange;
-  external set onstalled(EventHandler value);
+  external set onslotchange(EventHandler value);
   external EventHandler get onstalled;
-  external set onsubmit(EventHandler value);
+  external set onstalled(EventHandler value);
   external EventHandler get onsubmit;
-  external set onsuspend(EventHandler value);
+  external set onsubmit(EventHandler value);
   external EventHandler get onsuspend;
-  external set ontimeupdate(EventHandler value);
+  external set onsuspend(EventHandler value);
   external EventHandler get ontimeupdate;
-  external set ontoggle(EventHandler value);
+  external set ontimeupdate(EventHandler value);
   external EventHandler get ontoggle;
-  external set onvolumechange(EventHandler value);
+  external set ontoggle(EventHandler value);
   external EventHandler get onvolumechange;
-  external set onwaiting(EventHandler value);
+  external set onvolumechange(EventHandler value);
   external EventHandler get onwaiting;
-  external set onwebkitanimationend(EventHandler value);
+  external set onwaiting(EventHandler value);
   external EventHandler get onwebkitanimationend;
-  external set onwebkitanimationiteration(EventHandler value);
+  external set onwebkitanimationend(EventHandler value);
   external EventHandler get onwebkitanimationiteration;
-  external set onwebkitanimationstart(EventHandler value);
+  external set onwebkitanimationiteration(EventHandler value);
   external EventHandler get onwebkitanimationstart;
-  external set onwebkittransitionend(EventHandler value);
+  external set onwebkitanimationstart(EventHandler value);
   external EventHandler get onwebkittransitionend;
-  external set onwheel(EventHandler value);
+  external set onwebkittransitionend(EventHandler value);
   external EventHandler get onwheel;
-  external set onpointerover(EventHandler value);
+  external set onwheel(EventHandler value);
   external EventHandler get onpointerover;
-  external set onpointerenter(EventHandler value);
+  external set onpointerover(EventHandler value);
   external EventHandler get onpointerenter;
-  external set onpointerdown(EventHandler value);
+  external set onpointerenter(EventHandler value);
   external EventHandler get onpointerdown;
-  external set onpointermove(EventHandler value);
+  external set onpointerdown(EventHandler value);
   external EventHandler get onpointermove;
-  external set onpointerrawupdate(EventHandler value);
+  external set onpointermove(EventHandler value);
   external EventHandler get onpointerrawupdate;
-  external set onpointerup(EventHandler value);
+  external set onpointerrawupdate(EventHandler value);
   external EventHandler get onpointerup;
-  external set onpointercancel(EventHandler value);
+  external set onpointerup(EventHandler value);
   external EventHandler get onpointercancel;
-  external set onpointerout(EventHandler value);
+  external set onpointercancel(EventHandler value);
   external EventHandler get onpointerout;
-  external set onpointerleave(EventHandler value);
+  external set onpointerout(EventHandler value);
   external EventHandler get onpointerleave;
-  external set ongotpointercapture(EventHandler value);
+  external set onpointerleave(EventHandler value);
   external EventHandler get ongotpointercapture;
-  external set onlostpointercapture(EventHandler value);
+  external set ongotpointercapture(EventHandler value);
   external EventHandler get onlostpointercapture;
-  external set onselectstart(EventHandler value);
+  external set onlostpointercapture(EventHandler value);
   external EventHandler get onselectstart;
-  external set onselectionchange(EventHandler value);
+  external set onselectstart(EventHandler value);
   external EventHandler get onselectionchange;
-  external set ontouchstart(EventHandler value);
+  external set onselectionchange(EventHandler value);
   external EventHandler get ontouchstart;
-  external set ontouchend(EventHandler value);
+  external set ontouchstart(EventHandler value);
   external EventHandler get ontouchend;
-  external set ontouchmove(EventHandler value);
+  external set ontouchend(EventHandler value);
   external EventHandler get ontouchmove;
-  external set ontouchcancel(EventHandler value);
+  external set ontouchmove(EventHandler value);
   external EventHandler get ontouchcancel;
+  external set ontouchcancel(EventHandler value);
 }
 
 /// The **XMLDocument** interface represents an XML document. It inherits from
@@ -1653,10 +2385,10 @@ extension type XMLDocument._(JSObject _) implements Document, JSObject {}
 extension type ElementCreationOptions._(JSObject _) implements JSObject {
   external factory ElementCreationOptions({String is_});
 
-  @JS('is')
-  external set is_(String value);
   @JS('is')
   external String get is_;
+  @JS('is')
+  external set is_(String value);
 }
 
 /// The **`DOMImplementation`** interface represents an object providing methods
@@ -1730,8 +2462,37 @@ extension type DocumentType._(JSObject _) implements Node, JSObject {
 
   /// The **`DocumentType.remove()`** method removes a document's `doctype`.
   external void remove();
+
+  /// The read-only **`name`** property of the [DocumentType] returns the type
+  /// of the document.
+  ///
+  /// For synthetic `DocumentType`, this property reflects the value given in
+  /// parameter to [DOMImplementation.createDocumentType].
+  ///
+  /// For HTML documents, browsers always set it up to `html`, whatever the
+  /// actual `DOCTYPE` in the source code is.
   external String get name;
+
+  /// The read-only **`publicId`** property of the [DocumentType] returns a
+  /// formal identifier of the document.
+  ///
+  /// For synthetic `DocumentType`, this property reflects the value given in
+  /// parameter to [DOMImplementation.createDocumentType].
+  ///
+  /// For HTML documents, browsers always set it up to `html`, whatever the
+  /// actual `DOCTYPE` in the source code is. For SVG documents, for example, it
+  /// can be `"-//W3C//DTD SVG 1.1//EN"`.
   external String get publicId;
+
+  /// The read-only **`systemId`** property of the [DocumentType] returns the
+  /// URL of the associated DTD.
+  ///
+  /// For synthetic `DocumentType`, this property reflects the value given in
+  /// parameter to [DOMImplementation.createDocumentType].
+  ///
+  /// For HTML documents, browsers always set it up to `html`, whatever the
+  /// actual `DOCTYPE` in the source code is. For SVG documents, for example, it
+  /// can be `"http://www.w3.org/2000/svg"`.
   external String get systemId;
 }
 
@@ -1811,9 +2572,27 @@ extension type DocumentFragment._(JSObject _) implements Node, JSObject {
   /// If the selectors specified in parameter are invalid a [DOMException] with
   /// a `SYNTAX_ERR` value is raised.
   external NodeList querySelectorAll(String selectors);
+
+  /// The read-only **`children`** property returns a live [HTMLCollection]
+  /// which contains all of the child [Element] of the document fragment upon
+  /// which it was called.
   external HTMLCollection get children;
+
+  /// The **`DocumentFragment.firstElementChild`** read-only property
+  /// returns the document fragment's first child [Element], or `null` if there
+  /// are no child elements.
   external Element? get firstElementChild;
+
+  /// The **`DocumentFragment.lastElementChild`** read-only property
+  /// returns the document fragment's last child [Element], or `null` if there
+  /// are no child elements.
   external Element? get lastElementChild;
+
+  /// The **`DocumentFragment.childElementCount`** read-only property
+  /// returns the number of child elements of a `DocumentFragment`.
+  ///
+  /// To get the number of children of a specific element, see
+  /// [Element.childElementCount].
   external int get childElementCount;
 }
 
@@ -1839,18 +2618,105 @@ extension type ShadowRoot._(JSObject _) implements DocumentFragment, JSObject {
   /// and
   /// [Web Animations](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API).
   external JSArray<Animation> getAnimations();
+
+  /// The **`mode`** read-only property of the [ShadowRoot]
+  /// specifies its mode — either `open` or `closed`. This defines
+  /// whether or not the shadow root's internal features are accessible from
+  /// JavaScript.
+  ///
+  /// When the `mode` of a shadow root is "`closed`", the shadow root's
+  /// implementation internals are inaccessible and unchangeable from
+  /// JavaScript—in the same
+  /// way the implementation internals of, for example, the `video` element
+  /// are inaccessible and unchangeable from JavaScript.
   external ShadowRootMode get mode;
+
+  /// The **`delegatesFocus`** read-only property of the [ShadowRoot] interface
+  /// returns `true` if the shadow root delegates focus, and `false` otherwise.
+  ///
+  /// If `true`, when a non-focusable part of the shadow DOM is clicked, or
+  /// `.focus()` is called on the host element, the first focusable part is
+  /// given focus, and the shadow host is given any available `:focus` styling.
+  ///
+  /// Focus is of particular importance for keyboard users (including those
+  /// using screen readers). `delegatesFocus` default behavior is to focus the
+  /// first focusable element — which may be undesirable if that element is not
+  /// meant to be part of the tabbing order (for example, an element with
+  /// `tabindex="-1"`), or if a more 'important' focusable element should
+  /// receive initial focus (for instance, the first text field rather than the
+  /// 'close' button which precedes it). In such cases, the `autofocus`
+  /// attribute can be specified on the element which should receive initial
+  /// focus. Use the `autofocus` attribute with caution as it can introduce
+  /// accessibility issues, such as bypassing important content which may go
+  /// unnoticed due to focus being set to an element later in the DOM order.
+  ///
+  /// The property value is set using the `delegatesFocus` property of the
+  /// object passed to [Element.attachShadow]).
   external bool get delegatesFocus;
+
+  /// The read-only **`slotAssignment`** property of the [ShadowRoot] interface
+  /// returns the _slot assignment mode_ for the shadow DOM tree. Nodes are
+  /// either automatically assigned (`named`) or manually assigned (`manual`).
+  /// The value of this property defined using the `slotAssignment` option when
+  /// calling [Element.attachShadow].
   external SlotAssignmentMode get slotAssignment;
+
+  /// The **`clonable`** read-only property of the [ShadowRoot] interface
+  /// returns `true` if the shadow root is clonable, and `false` otherwise. It
+  /// always returns `true` for shadow roots created via declarative shadow DOM.
+  /// It can be set to `true` using the `clonable` option of the
+  /// [Element.attachShadow] method.
   external bool get clonable;
+
+  /// The **`host`** read-only property of
+  /// the [ShadowRoot] returns a reference to the DOM element the
+  /// `ShadowRoot` is attached to.
   external Element get host;
-  external set onslotchange(EventHandler value);
   external EventHandler get onslotchange;
-  external set innerHTML(String value);
+  external set onslotchange(EventHandler value);
+
+  /// The **`innerHTML`** property of the [ShadowRoot]
+  /// interface sets or returns a reference to the DOM tree inside the
+  /// `ShadowRoot`.
   external String get innerHTML;
+  external set innerHTML(String value);
+
+  /// The **`styleSheets`** read-only property of the [ShadowRoot] interface
+  /// returns a [StyleSheetList] of [CSSStyleSheet] objects, for stylesheets
+  /// explicitly linked into or embedded in a shadow tree.
   external StyleSheetList get styleSheets;
-  external set adoptedStyleSheets(JSArray<CSSStyleSheet> value);
+
+  /// The **`adoptedStyleSheets`** property of the [ShadowRoot] interface sets
+  /// an array of constructed stylesheets to be used by the shadow DOM subtree.
+  ///
+  /// > **Note:** A constructed stylesheet is a stylesheet created
+  /// > programmatically using the [`CSSStyleSheet()`
+  /// > constructor](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleSheet/CSSStyleSheet)
+  /// > (as compared to one created by a user-agent when importing a stylesheet
+  /// > from a script, imported using `style` and , or linked to via `link`).
+  ///
+  /// The same constructed stylesheet can be adopted by multiple [ShadowRoot]
+  /// instances, and by the parent document (using the
+  /// [Document.adoptedStyleSheets] property).
+  /// Changing an adopted stylesheet will affect all the adopting objects.
+  ///
+  /// Stylesheets in the `adoptedStyleSheets` property are considered along with
+  /// the shadow DOM's other stylesheets.
+  /// For the purpose of determining the final computed CSS of any element, they
+  /// are considered to have been added _after_ the other stylesheets in the
+  /// shadow DOM
+  /// ([`ShadowRoot.styleSheets`](https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot/styleSheets)).
+  ///
+  /// Only stylesheets created using the [`CSSStyleSheet()`
+  /// constructor](https://developer.mozilla.org/en-US/docs/Web/API/CSSStyleSheet/CSSStyleSheet),
+  /// and from within the same parent [Document] as the shadow root, may be
+  /// adopted.
   external JSArray<CSSStyleSheet> get adoptedStyleSheets;
+  external set adoptedStyleSheets(JSArray<CSSStyleSheet> value);
+
+  /// The **`activeElement`** read-only property of the
+  /// [ShadowRoot] interface returns the element within the shadow tree that has
+  /// focus.
   external Element? get activeElement;
 }
 
@@ -2360,39 +3226,340 @@ extension type Element._(JSObject _) implements Node, JSObject {
   /// > and
   /// > [Web Animations](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API).
   external JSArray<Animation> getAnimations([GetAnimationsOptions options]);
-  external set outerHTML(String value);
+
+  /// The **`outerHTML`** attribute of the [Element]
+  /// DOM interface gets the serialized HTML fragment describing the element
+  /// including its
+  /// descendants. It can also be set to replace the element with nodes parsed
+  /// from the given
+  /// string.
+  ///
+  /// To only obtain the HTML representation of the contents of an element, or
+  /// to replace the
+  /// contents of an element, use the [Element.innerHTML] property
+  /// instead.
   external String get outerHTML;
-  external set scrollTop(num value);
+  external set outerHTML(String value);
+
+  /// The **`Element.scrollTop`** property gets or sets the number of pixels
+  /// that an element's content is scrolled vertically.
+  ///
+  /// An element's `scrollTop` value is a measurement of the distance from the
+  /// element's top to its topmost _visible_ content. When an element's content
+  /// does not generate a vertical scrollbar, then its `scrollTop` value is `0`.
+  ///
+  /// `scrollTop` can be set to any integer value, with certain caveats:
+  ///
+  /// - If the element can't be scrolled (e.g. it has no overflow or if the
+  ///   element has a property of "**non-scrollable**"), `scrollTop` is `0`.
+  /// - `scrollTop` doesn't respond to negative values; instead, it sets itself
+  ///   back to `0`.
+  /// - If set to a value greater than the maximum available for the element,
+  ///   `scrollTop` settles itself to the maximum value.
+  ///
+  /// When `scrollTop` is used on the root element (the `<html>` element), the
+  /// `scrollY` of the window is returned.
+  /// [This is a special case of `scrollTop`](https://www.w3.org/TR/2016/WD-cssom-view-1-20160317/#dom-element-scrolltop).
+  ///
+  /// > **Warning:** On systems using display scaling, `scrollTop` may give you
+  /// > a decimal value.
   external num get scrollTop;
-  external set scrollLeft(num value);
+  external set scrollTop(num value);
+
+  /// The **`Element.scrollLeft`** property gets or sets the number
+  /// of pixels that an element's content is scrolled from its left edge.
+  ///
+  /// If the element's `direction` is `rtl` (right-to-left), then
+  /// `scrollLeft` is `0` when the scrollbar is at its rightmost
+  /// position (at the start of the scrolled content), and then increasingly
+  /// negative as you
+  /// scroll towards the end of the content.
+  ///
+  /// It can be specified as any integer value. However:
+  ///
+  /// - If the element can't be scrolled (e.g., it has no overflow),
+  ///   `scrollLeft`
+  /// is set to `0`.
+  /// - If specified as a value less than `0` (greater than `0` for
+  /// right-to-left elements), `scrollLeft` is set to `0`.
+  /// - If specified as a value greater than the maximum that the content can be
+  ///   scrolled,
+  /// `scrollLeft` is set to the maximum.
+  ///
+  /// > **Warning:** On systems using display scaling, `scrollLeft` may give you
+  /// > a decimal
+  /// > value.
   external num get scrollLeft;
+  external set scrollLeft(num value);
+
+  /// The **`Element.scrollWidth`** read-only property is a
+  /// measurement of the width of an element's content, including content not
+  /// visible on the
+  /// screen due to overflow.
+  ///
+  /// The `scrollWidth` value is equal to the minimum width the element would
+  /// require in order to fit all the content in the viewport without using a
+  /// horizontal
+  /// scrollbar. The width is measured in the same way as [Element.clientWidth]:
+  /// it includes the element's padding, but not its border, margin or
+  /// vertical scrollbar (if present). It can also include the width of
+  /// pseudo-elements such
+  /// as  or . If the element's content can fit
+  /// without a need for horizontal scrollbar, its `scrollWidth` is equal to
+  /// [Element.clientWidth]
+  ///
+  /// > **Note:** This property will round the value to an integer. If you need
+  /// > a fractional value,
+  /// > use [element.getBoundingClientRect].
   external int get scrollWidth;
+
+  /// The **`Element.scrollHeight`** read-only property is a
+  /// measurement of the height of an element's content, including content not
+  /// visible on the
+  /// screen due to overflow.
+  ///
+  /// ![The user's viewport is an element with four regions labeled padding-top,
+  /// border-top, border-bottom, padding-bottom. The scroll height goes from the
+  /// container's padding top to the end of the padding bottom, well beyond the
+  /// top and bottom of the viewport.](scrollheight.png)
+  ///
+  /// The `scrollHeight` value is equal to the minimum height the element would
+  /// require in order to fit all the content in the viewport without using a
+  /// vertical
+  /// scrollbar. The height is measured in the same way as
+  /// [Element.clientHeight]:
+  /// it includes the element's padding, but not its border, margin or
+  /// horizontal scrollbar (if present). It can also include the height of
+  /// pseudo-elements
+  /// such as  or . If the element's content can
+  /// fit without a need for vertical scrollbar, its `scrollHeight` is equal to
+  /// [Element.clientHeight]
+  ///
+  /// > **Note:** This property will round the value to an integer. If you need
+  /// > a fractional value, use
+  /// > [Element.getBoundingClientRect].
   external int get scrollHeight;
+
+  /// The width of the top border of an element in pixels. It is a read-only,
+  /// integer
+  /// property of element.
+  ///
+  /// As it happens, all that lies between the two locations (`offsetTop` and
+  /// client area top) is the element's border. This is because the `offsetTop`
+  /// indicates the location of the top of the border (not the margin) while the
+  /// client area
+  /// starts immediately below the border, (client area includes padding.)
+  /// Therefore, the
+  /// **clientTop** value will always equal the integer portion of the
+  /// `.getComputedStyle()` value for "border-top-width". (Actually might be
+  /// Math.round(parseFloat()).) For example, if the computed "border-top-width"
+  /// is zero,
+  /// then **`clientTop`** is also zero.
+  ///
+  /// > **Note:** This property will round the value to an integer. If you
+  /// > need a fractional value, use [element.getBoundingClientRect].
   external int get clientTop;
+
+  /// The width of the left border of an element in pixels. It includes the
+  /// width of the
+  /// vertical scrollbar if the text direction of the element is right-to-left
+  /// and if there
+  /// is an overflow causing a left vertical scrollbar to be rendered.
+  /// `clientLeft` does not include the left margin or the left padding.
+  /// `clientLeft` is read-only.
+  ///
+  /// > **Note:** This property will round the value to an integer. If you
+  /// > need a fractional value, use [element.getBoundingClientRect].
+  ///
+  /// > **Note:** When an element has
+  /// > `display: inline`, `clientLeft` returns `0`
+  /// > regardless of the element's border.
   external int get clientLeft;
+
+  /// The **`Element.clientWidth`** property is zero for inline
+  /// elements and elements with no CSS; otherwise, it's the inner width of an
+  /// element in
+  /// pixels. It includes padding but excludes borders, margins, and vertical
+  /// scrollbars (if
+  /// present).
+  ///
+  /// When `clientWidth` is used on the root element (the
+  /// `<html>` element), (or on `<body>` if the document is
+  /// in quirks mode), the viewport's width (excluding any scrollbar) is
+  /// returned.
+  /// [This is a special case of `clientWidth`](https://www.w3.org/TR/2016/WD-cssom-view-1-20160317/#dom-element-clientwidth).
+  ///
+  /// > **Note:** This property will round the value to an integer. If you need
+  /// > a fractional value, use [element.getBoundingClientRect].
   external int get clientWidth;
+
+  /// The **`Element.clientHeight`** read-only property is zero for
+  /// elements with no CSS or inline layout boxes; otherwise, it's the inner
+  /// height of an
+  /// element in pixels. It includes padding but excludes borders, margins, and
+  /// horizontal
+  /// scrollbars (if present).
+  ///
+  /// `clientHeight` can be calculated as: CSS `height` + CSS
+  /// `padding` - height of horizontal scrollbar (if present).
+  ///
+  /// When `clientHeight` is used on the root element (the
+  /// `<html>` element), (or on `<body>` if the document is
+  /// in quirks mode), the viewport's height (excluding any scrollbar) is
+  /// returned.
+  /// [This is a special case of `clientHeight`](https://www.w3.org/TR/2016/WD-cssom-view-1-20160317/#dom-element-clientheight).
+  ///
+  /// > **Note:** This property will round the value to an integer. If you need
+  /// > a fractional value, use [element.getBoundingClientRect].
   external int get clientHeight;
+
+  /// The **`Element.namespaceURI`** read-only property returns the namespace
+  /// URI of the element, or `null` if the element is not in a namespace.
   external String? get namespaceURI;
+
+  /// The **`Element.prefix`** read-only property returns the
+  /// namespace prefix of the specified element, or `null` if no prefix is
+  /// specified.
   external String? get prefix;
+
+  /// The **`Element.localName`** read-only property returns the
+  /// local part of the qualified name of an element.
   external String get localName;
+
+  /// The **`tagName`** read-only property
+  /// of the [Element] interface returns the tag name of the element on which
+  /// it's called.
+  ///
+  /// For example, if the element is an `img`, its
+  /// `tagName` property is `IMG` (for HTML documents; it may be cased
+  /// differently for XML/XHTML documents). Note: You can use the
+  /// [Element.localName] property
+  /// to access the Element's local name — which for the case in the example is
+  /// `img` (lowercase) .
   external String get tagName;
-  external set id(String value);
+
+  /// The **`id`** property of the [Element] interface
+  /// represents the element's identifier, reflecting the
+  /// [**`id`**](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/id)
+  /// global attribute.
+  ///
+  /// If the `id` value is not the empty string, it must be unique in a
+  /// document.
+  ///
+  /// The `id` is often used with [Document.getElementById] to retrieve a
+  /// particular element.
+  /// Another common case is to use an element's
+  /// [ID as a selector](https://developer.mozilla.org/en-US/docs/Web/CSS/ID_selectors)
+  /// when styling the document with
+  /// [CSS](https://developer.mozilla.org/en-US/docs/Web/CSS).
+  ///
+  /// > **Note:** Identifiers are case-sensitive, but you should avoid creating
+  /// > IDs that differ only in the capitalization.
   external String get id;
-  external set className(String value);
+  external set id(String value);
+
+  /// The **`className`** property of the
+  /// [Element] interface gets and sets the value of the
+  /// [`class` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/class)
+  /// of the specified element.
   external String get className;
+  external set className(String value);
+
+  /// The **`Element.classList`** is a read-only property that
+  /// returns a live [DOMTokenList] collection of the `class`
+  /// attributes of the element. This can then be used to manipulate the class
+  /// list.
+  ///
+  /// Using `classList` is a convenient alternative to accessing an element's
+  /// list
+  /// of classes as a space-delimited string via [element.className].
   external DOMTokenList get classList;
-  external set slot(String value);
+
+  /// The **`slot`** property of the [Element] interface
+  /// returns the name of the shadow DOM slot the element is inserted in.
+  ///
+  /// A slot is a placeholder inside a
+  /// [web component](https://developer.mozilla.org/en-US/docs/Web/API/Web_components)
+  /// that users can fill with their own markup (see
+  /// [Using templates and slots](https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_templates_and_slots)
+  /// for more information).
   external String get slot;
+  external set slot(String value);
+
+  /// The **`Element.attributes`** property returns a live collection
+  /// of all attribute nodes registered to the specified node. It is a
+  /// [NamedNodeMap], not an `Array`, so it has no `Array`
+  /// methods and the [Attr] nodes' indexes may differ among browsers. To be
+  /// more
+  /// specific, `attributes` is a key/value pair of strings that represents any
+  /// information regarding that attribute.
   external NamedNodeMap get attributes;
+
+  /// The `Element.shadowRoot` read-only property
+  /// represents the shadow root hosted by the element.
+  ///
+  /// Use [Element.attachShadow] to add a shadow root to an existing element.
   external ShadowRoot? get shadowRoot;
-  external set innerHTML(String value);
+
+  /// The [Element] property
+  /// **`innerHTML`** gets or sets the HTML or XML markup contained
+  /// within the element.
+  ///
+  /// To insert the HTML into the document rather than replace the contents of
+  /// an element,
+  /// use the method [Element.insertAdjacentHTML].
   external String get innerHTML;
+  external set innerHTML(String value);
+
+  /// The read-only **`children`** property returns a live [HTMLCollection]
+  /// which contains all of the child [Element] of the element upon which it was
+  /// called.
+  ///
+  /// `Element.children` includes only element nodes. To get all child nodes,
+  /// including non-element nodes like text and comment nodes, use
+  /// [Node.childNodes].
   external HTMLCollection get children;
+
+  /// The **`Element.firstElementChild`** read-only property
+  /// returns an element's first child [Element], or `null` if there
+  /// are no child elements.
+  ///
+  /// `Element.firstElementChild` includes only element nodes.
+  /// To get all child nodes, including non-element nodes like text and comment
+  /// nodes, use [Node.firstChild].
   external Element? get firstElementChild;
+
+  /// The **`Element.lastElementChild`** read-only property
+  /// returns an element's last child [Element], or `null` if there
+  /// are no child elements.
+  ///
+  /// `Element.lastElementChild` includes only element nodes.
+  /// To get all child nodes, including non-element nodes like text and comment
+  /// nodes, use [Node.lastChild].
   external Element? get lastElementChild;
+
+  /// The **`Element.childElementCount`** read-only property
+  /// returns the number of child elements of this element.
   external int get childElementCount;
+
+  /// The **`Element.previousElementSibling`**
+  /// read-only property returns the [Element] immediately prior to the
+  /// specified
+  /// one in its parent's children list, or `null` if the specified element is
+  /// the first one in the list.
   external Element? get previousElementSibling;
+
+  /// The **`Element.nextElementSibling`** read-only
+  /// property returns the element immediately following the specified one in
+  /// its parent's
+  /// children list, or `null` if the specified element is the last one in the
+  /// list.
   external Element? get nextElementSibling;
+
+  /// The **`assignedSlot`** read-only
+  /// property of the [Element] interface returns an
+  /// [HTMLSlotElement] representing the `slot` element the
+  /// node is inserted in.
   external HTMLSlotElement? get assignedSlot;
 }
 extension type ShadowRootInit._(JSObject _) implements JSObject {
@@ -2403,14 +3570,14 @@ extension type ShadowRootInit._(JSObject _) implements JSObject {
     bool clonable,
   });
 
-  external set mode(ShadowRootMode value);
   external ShadowRootMode get mode;
-  external set delegatesFocus(bool value);
+  external set mode(ShadowRootMode value);
   external bool get delegatesFocus;
-  external set slotAssignment(SlotAssignmentMode value);
+  external set delegatesFocus(bool value);
   external SlotAssignmentMode get slotAssignment;
-  external set clonable(bool value);
+  external set slotAssignment(SlotAssignmentMode value);
   external bool get clonable;
+  external set clonable(bool value);
 }
 
 /// The **`NamedNodeMap`** interface represents a collection of [Attr] objects.
@@ -2481,6 +3648,9 @@ extension type NamedNodeMap._(JSObject _) implements JSObject {
     String? namespace,
     String localName,
   );
+
+  /// The read-only **`length`** property of the [NamedNodeMap] interface
+  /// is the number of objects stored in the map.
   external int get length;
 }
 
@@ -2518,13 +3688,82 @@ extension type NamedNodeMap._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Attr).
 extension type Attr._(JSObject _) implements Node, JSObject {
+  /// The read-only **`namespaceURI`** property of the [Attr] interface returns
+  /// the namespace URI of the attribute,
+  /// or `null` if the element is not in a namespace.
+  ///
+  /// The namespace URI is set at the [Attr] creation and cannot be changed.
+  /// An attribute with a namespace can be created using
+  /// [Element.setAttributeNS].
+  ///
+  /// > **Note:** an attribute does not inherit its namespace from the element
+  /// > it is attached to.
+  /// > If an attribute is not explicitly given a namespace, it has no
+  /// > namespace.
+  ///
+  /// The browser does not handle or enforce namespace validation per se. It is
+  /// up to the JavaScript
+  /// application to do any necessary validation. Note, too, that the namespace
+  /// prefix, once it
+  /// is associated with a particular attribute node, cannot be changed.
   external String? get namespaceURI;
+
+  /// The read-only **`prefix`** property of the [Attr] returns the namespace
+  /// prefix of the attribute, or `null` if no prefix is specified.
+  ///
+  /// The prefix is always in lower case, whatever case is used at the attribute
+  /// creation.
+  ///
+  /// > **Note:** Only XML supports namespaces. HTML does not. That means that
+  /// > the prefix of an attribute of an HTML element will always be `null`.
+  ///
+  /// Also, only the `xml` (for the `xml:lang` attribute), `xlink` (for the
+  /// `xlink:href`, `xlink:show`, `xlink:target` and `xlink:title` attributes)
+  /// and `xpath` namespaces are supported, and only on SVG and MathML elements.
   external String? get prefix;
+
+  /// The read-only **`localName`** property of the [Attr] interface returns the
+  /// _local part_ of the _qualified name_ of an attribute, that is the name of
+  /// the attribute, stripped from any namespace in front of it. For example, if
+  /// the qualified name is `xml:lang`, the returned local name is `lang`, if
+  /// the element supports that namespace.
+  ///
+  /// The local name is always in lower case, whatever case at the attribute
+  /// creation.
+  ///
+  /// > **Note:** HTML only supports a fixed set of namespaces on SVG and MathML
+  /// > elements. These are `xml` (for the `xml:lang` attribute), `xlink` (for
+  /// > the `xlink:href`, `xlink:show`, `xlink:target` and `xlink:title`
+  /// > attributes) and `xpath`.
+  /// >
+  /// > That means that the local name of an attribute of an HTML element is
+  /// > always be equal to its qualified name: Colons are treated as regular
+  /// > characters. In XML, like in SVG or MathML, the colon denotes the end of
+  /// > the prefix and what is before is the namespace; the local name may be
+  /// > different from the qualified name.
   external String get localName;
+
+  /// The read-only **`name`** property of the [Attr] interface returns the
+  /// _qualified name_ of an attribute, that is the name of the attribute, with
+  /// the namespace prefix, if any, in front of it. For example, if the local
+  /// name is `lang` and the namespace prefix is `xml`, the returned qualified
+  /// name is `xml:lang`.
+  ///
+  /// The qualified name is always in lower case, whatever case at the attribute
+  /// creation.
   external String get name;
-  external set value(String value);
+
+  /// The **`value`** property of the [Attr] interface contains the value of the
+  /// attribute.
   external String get value;
+  external set value(String value);
+
+  /// The read-only **`ownerElement`** property of the [Attr] interface returns
+  /// the [Element] the attribute belongs to.
   external Element? get ownerElement;
+
+  /// The read-only **`specified`** property of the [Attr] interface always
+  /// returns `true`.
   external bool get specified;
 }
 
@@ -2605,10 +3844,30 @@ extension type CharacterData._(JSObject _) implements Node, JSObject {
   /// The **`remove()`** method of the [CharacterData] removes the text
   /// contained in the node.
   external void remove();
-  external set data(String value);
+
+  /// The **`data`** property of the [CharacterData] interface represent the
+  /// value of the current object's data.
   external String get data;
+  external set data(String value);
+
+  /// The read-only **`CharacterData.length`** property
+  /// returns the number of characters in the contained data, as a positive
+  /// integer.
   external int get length;
+
+  /// The read-only **`previousElementSibling`** of the [CharacterData]
+  /// interface
+  /// returns the first [Element] before the current node in its parent's
+  /// children list,
+  /// or `null` if there is none.
   external Element? get previousElementSibling;
+
+  /// The read-only **`nextElementSibling`** property of the [CharacterData]
+  /// interface
+  /// returns the first [Element] node following the specified one in its
+  /// parent's
+  /// children list, or `null` if the specified element is the last one in the
+  /// list.
   external Element? get nextElementSibling;
 }
 
@@ -2678,7 +3937,20 @@ extension type Text._(JSObject _) implements CharacterData, JSObject {
     GeometryNode from, [
     ConvertCoordinateOptions options,
   ]);
+
+  /// The read-only **`wholeText`** property of the [Text] interface
+  /// returns the full text of all [Text] nodes logically adjacent to the node.
+  /// The text is concatenated in document order.
+  /// This allows specifying any text node and obtaining all adjacent text as a
+  /// single string.
+  ///
+  /// > **Note:** This is similar to call [Node.normalize] followed by reading
+  /// > the text value,
+  /// > but without modifying the tree.
   external String get wholeText;
+
+  /// The read-only **`assignedSlot`** property of the [Text] interface
+  /// returns the [HTMLSlotElement] object associated with the element.
   external HTMLSlotElement? get assignedSlot;
 }
 
@@ -2747,7 +4019,26 @@ extension type CDATASection._(JSObject _) implements Text, JSObject {}
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/ProcessingInstruction).
 extension type ProcessingInstruction._(JSObject _)
     implements CharacterData, JSObject {
+  /// The read-only **`target`** property of the [ProcessingInstruction]
+  /// interface
+  /// represent the application to which the `ProcessingInstruction` is
+  /// targeted.
+  ///
+  /// For example:
+  ///
+  /// ```html
+  /// <?xml version="1.0"?>
+  /// ```
+  ///
+  /// is a processing instruction whose `target` is `xml`.
   external String get target;
+
+  /// The read-only **`sheet`** property of the [ProcessingInstruction]
+  /// interface
+  /// contains the stylesheet associated to the `ProcessingInstruction`.
+  ///
+  /// The `xml-stylesheet` processing instruction is used to associate a
+  /// stylesheet in an XML file.
   external CSSStyleSheet? get sheet;
 }
 
@@ -2782,10 +4073,25 @@ extension type Comment._(JSObject _) implements CharacterData, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AbstractRange).
 extension type AbstractRange._(JSObject _) implements JSObject {
+  /// The read-only **`startContainer`** property of the [AbstractRange]
+  /// interface returns the start [Node] for the range.
   external Node get startContainer;
+
+  /// The read-only **`startOffset`** property of the [AbstractRange] interface
+  /// returns the offset into the start node of the range's start position.
   external int get startOffset;
+
+  /// The read-only **`endContainer`** property of the [AbstractRange] interface
+  /// returns the [Node] in which the end of the range is located.
   external Node get endContainer;
+
+  /// The **`endOffset`** property of the [AbstractRange] interface returns the
+  /// offset into the end node of the range's end position.
   external int get endOffset;
+
+  /// The read-only **`collapsed`** property of the [AbstractRange] interface
+  /// returns `true` if the range's start position and end position are the
+  /// same.
   external bool get collapsed;
 }
 extension type StaticRangeInit._(JSObject _) implements JSObject {
@@ -2796,14 +4102,14 @@ extension type StaticRangeInit._(JSObject _) implements JSObject {
     required int endOffset,
   });
 
-  external set startContainer(Node value);
   external Node get startContainer;
-  external set startOffset(int value);
+  external set startContainer(Node value);
   external int get startOffset;
-  external set endContainer(Node value);
+  external set startOffset(int value);
   external Node get endContainer;
-  external set endOffset(int value);
+  external set endContainer(Node value);
   external int get endOffset;
+  external set endOffset(int value);
 }
 
 /// The
@@ -3073,6 +4379,25 @@ extension type Range._(JSObject _) implements AbstractRange, JSObject {
   /// The **`Range.intersectsNode()`** method returns a boolean
   /// indicating whether the given [Node] intersects the [Range].
   external bool intersectsNode(Node node);
+
+  /// The **`Range.commonAncestorContainer`** read-only property
+  /// returns the deepest — or furthest down the document tree — [Node] that
+  /// contains both
+  /// [boundary points](https://www.w3.org/TR/DOM-Level-2-Traversal-Range/ranges.html#Level-2-Range-Position-h3)
+  /// of the [Range]. This means that if
+  /// [Range.startContainer] and [Range.endContainer] both refer to
+  /// the same node, this node is the **common ancestor container**.
+  ///
+  /// Since a `Range` need not be continuous, and may also partially select
+  /// nodes,
+  /// this is a convenient way to find a `Node` which encloses a
+  /// `Range`.
+  ///
+  /// This property is read-only. To change the ancestor container of a `Node`,
+  /// consider using the various methods available to set the start and end
+  /// positions of the
+  /// `Range`, such as [Range.setStart] and
+  /// [Range.setEnd].
   external Node get commonAncestorContainer;
 }
 
@@ -3121,10 +4446,42 @@ extension type NodeIterator._(JSObject _) implements JSObject {
   /// `INVALID`. Once this method had been called, calls to other methods on
   /// `NodeIterator` would raise the `INVALID_STATE_ERR` exception.
   external void detach();
+
+  /// The **`NodeIterator.root`** read-only property represents the
+  /// [Node] that is the root of what the [NodeIterator]
+  /// traverses.
   external Node get root;
+
+  /// The **`NodeIterator.referenceNode`** read-only property returns the
+  /// [Node] to which the iterator is anchored; as new nodes are inserted, the
+  /// iterator remains anchored to the reference node as specified by this
+  /// property.
   external Node get referenceNode;
+
+  /// The **`NodeIterator.pointerBeforeReferenceNode`** read-only
+  /// property returns a boolean flag that indicates whether the
+  /// `NodeFilter` is anchored before (if this value is `true`) or
+  /// after (if this value is `false`) the anchor node indicated by the
+  /// [NodeIterator.referenceNode] property.
   external bool get pointerBeforeReferenceNode;
+
+  /// The **`NodeIterator.whatToShow`** read-only property represents
+  /// an `unsigned integer` representing a bitmask signifying what types of
+  /// nodes
+  /// should be returned by the [NodeIterator].
   external int get whatToShow;
+
+  /// The **`NodeIterator.filter`** read-only property returns a
+  /// `NodeFilter` object, that is an object which implements an
+  /// `acceptNode(node)` method, used to screen nodes.
+  ///
+  /// When creating the [NodeIterator], the filter object is passed in as the
+  /// third parameter, and the object method `acceptNode(node)` is
+  /// called on every single node to determine whether or not to accept it. This
+  /// function
+  /// should return the constant `NodeFilter.FILTER_ACCEPT` for cases when the
+  /// node should be accepted and `NodeFilter.FILTER_REJECT` for cases when the
+  /// node should be rejected.
   external NodeFilter? get filter;
 }
 
@@ -3181,11 +4538,126 @@ extension type TreeWalker._(JSObject _) implements JSObject {
   /// the found node. If no such node exists, it returns `null` and the current
   /// node is not changed.
   external Node? nextNode();
+
+  /// The **`TreeWalker.root`** read-only property returns the node
+  /// that is the root of what the TreeWalker traverses.
   external Node get root;
+
+  /// The **`TreeWalker.whatToShow`** read-only property returns a
+  /// bitmask that indicates the types of
+  /// [nodes](https://developer.mozilla.org/en-US/docs/Web/API/Node) to show.
+  /// Non-matching nodes are skipped, but their
+  /// children may be included, if relevant. The possible values are:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th>Constant</th>
+  ///       <th>Numerical value</th>
+  ///       <th>Description</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_ALL</code></td>
+  ///       <td>
+  ///         <code>4294967295</code> (that is the max value of <code>unsigned long</code>)
+  ///       </td>
+  ///       <td>Shows all nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>NodeFilter.SHOW_ATTRIBUTE</code>
+  ///       </td>
+  ///       <td><code>2</code></td>
+  ///       <td>
+  /// Shows attribute [Attr] nodes. This is meaningful
+  /// only when creating a [TreeWalker] with an
+  /// [Attr] node as its root; in this case, it means
+  /// that the attribute node will appear in the first position of the
+  /// iteration or traversal. Since attributes are never children of other
+  /// nodes, they do not appear when traversing over the document tree.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>NodeFilter.SHOW_CDATA_SECTION</code>
+  ///       </td>
+  ///       <td><code>8</code></td>
+  ///       <td>Shows [CDATASection] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_COMMENT</code></td>
+  ///       <td><code>128</code></td>
+  ///       <td>Shows [Comment] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_DOCUMENT</code></td>
+  ///       <td><code>256</code></td>
+  ///       <td>Shows [Document] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_DOCUMENT_FRAGMENT</code></td>
+  ///       <td><code>1024</code></td>
+  ///       <td>Shows [DocumentFragment] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_DOCUMENT_TYPE</code></td>
+  ///       <td><code>512</code></td>
+  ///       <td>Shows [DocumentType] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_ELEMENT</code></td>
+  ///       <td><code>1</code></td>
+  ///       <td>Shows [Element] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_ENTITY</code> </td>
+  ///       <td><code>32</code></td>
+  ///       <td>Legacy, no more used.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>NodeFilter.SHOW_ENTITY_REFERENCE</code>
+  ///       </td>
+  ///       <td><code>16</code></td>
+  ///       <td>Legacy, no more used.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>NodeFilter.SHOW_NOTATION</code>
+  ///       </td>
+  ///       <td><code>2048</code></td>
+  ///       <td>Legacy, no more used.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_PROCESSING_INSTRUCTION</code></td>
+  ///       <td><code>64</code></td>
+  ///       <td>Shows [ProcessingInstruction] nodes.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>NodeFilter.SHOW_TEXT</code></td>
+  ///       <td><code>4</code></td>
+  ///       <td>Shows [Text] nodes.</td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external int get whatToShow;
+
+  /// The **`TreeWalker.filter`** read-only property returns a
+  /// `NodeFilter` that is the filtering object associated with the
+  /// [TreeWalker].
+  ///
+  /// When creating the `TreeWalker`, the filter object is passed in as the
+  /// third
+  /// parameter, and its method `acceptNode()` is called on every
+  /// single node to determine whether or not to accept it.
   external NodeFilter? get filter;
-  external set currentNode(Node value);
+
+  /// The **`TreeWalker.currentNode`** property represents the
+  /// [Node] which the [TreeWalker] is currently pointing at.
   external Node get currentNode;
+  external set currentNode(Node value);
 }
 
 /// The **`DOMTokenList`** interface represents a set of space-separated tokens.
@@ -3245,9 +4717,17 @@ extension type DOMTokenList._(JSObject _) implements JSObject {
   /// supported tokens.
   /// This method is intended to support feature detection.
   external bool supports(String token);
+
+  /// The read-only **`length`** property of the [DOMTokenList] interface is an
+  /// `integer` representing the number
+  /// of objects stored in the object.
   external int get length;
-  external set value(String value);
+
+  /// The **`value`** property of the [DOMTokenList]
+  /// interface is a  that returns the value of the list serialized as a
+  /// string, or clears and sets the list to the given value.
   external String get value;
+  external set value(String value);
 }
 
 /// The **`XPathResult`** interface represents the results generated by
@@ -3285,12 +4765,44 @@ extension type XPathResult._(JSObject _) implements JSObject {
   /// correspond to the
   /// current document if it is mutated.
   external Node? snapshotItem(int index);
+
+  /// The read-only **`resultType`** property of the
+  /// [XPathResult] interface represents the type of the result, as defined by
+  /// the type constants.
   external int get resultType;
+
+  /// The read-only **`numberValue`** property of the
+  /// [XPathResult] interface returns the numeric value of a result with
+  /// [XPathResult.resultType] being `NUMBER_TYPE`.
   external num get numberValue;
+
+  /// The read-only **`stringValue`** property of the
+  /// [XPathResult] interface returns the string value of a result with
+  /// [XPathResult.resultType] being `STRING_TYPE`.
   external String get stringValue;
+
+  /// The read-only **`booleanValue`** property of the
+  /// [XPathResult] interface returns the boolean value of a result with
+  /// [XPathResult.resultType] being `BOOLEAN_TYPE`.
   external bool get booleanValue;
+
+  /// The read-only **`singleNodeValue`** property of the
+  /// [XPathResult] interface returns a [Node] value or
+  /// `null` in case no node was matched of a result with
+  /// [XPathResult.resultType] being `ANY_UNORDERED_NODE_TYPE` or
+  /// `FIRST_ORDERED_NODE_TYPE`.
   external Node? get singleNodeValue;
+
+  /// The read-only **`invalidIteratorState`** property of the
+  /// [XPathResult] interface signifies that the iterator has become invalid. It
+  /// is `true` if [XPathResult.resultType] is
+  /// `UNORDERED_NODE_ITERATOR_TYPE` or `ORDERED_NODE_ITERATOR_TYPE` and
+  /// the document has been modified since this result was returned.
   external bool get invalidIteratorState;
+
+  /// The read-only **`snapshotLength`** property of the
+  /// [XPathResult] interface represents the number of nodes in the result
+  /// snapshot.
   external int get snapshotLength;
 }
 
diff --git a/lib/src/dom/encoding.dart b/lib/src/dom/encoding.dart
index 53e425f2..37637d50 100644
--- a/lib/src/dom/encoding.dart
+++ b/lib/src/dom/encoding.dart
@@ -22,16 +22,16 @@ extension type TextDecoderOptions._(JSObject _) implements JSObject {
     bool ignoreBOM,
   });
 
-  external set fatal(bool value);
   external bool get fatal;
-  external set ignoreBOM(bool value);
+  external set fatal(bool value);
   external bool get ignoreBOM;
+  external set ignoreBOM(bool value);
 }
 extension type TextDecodeOptions._(JSObject _) implements JSObject {
   external factory TextDecodeOptions({bool stream});
 
-  external set stream(bool value);
   external bool get stream;
+  external set stream(bool value);
 }
 
 /// The **`TextDecoder`** interface represents a decoder for a specific text
@@ -58,8 +58,31 @@ extension type TextDecoder._(JSObject _) implements JSObject {
     AllowSharedBufferSource input,
     TextDecodeOptions options,
   ]);
+
+  /// The **`TextDecoder.encoding`** read-only property returns a string
+  /// containing the name of the decoding algorithm used by the specific decoder
+  /// object.
+  ///
+  /// The encoding is set by the
+  /// [constructor](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/TextDecoder)
+  /// `label` parameter, and defaults to `utf-8`.
   external String get encoding;
+
+  /// The **`fatal`** read-only property of the [TextDecoder] interface is a
+  /// `Boolean` indicating whether the error mode is fatal.
+  ///
+  /// If the property is `true`, then a decoder will throw a `TypeError` if it
+  /// encounters malformed data while decoding.
+  /// If `false`, the decoder will substitute the invalid data with the
+  /// replacement character `U+FFFD` (�).
+  /// The value of the property is set in the [`TextDecoder()`
+  /// constructor](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/TextDecoder).
   external bool get fatal;
+
+  /// The **`ignoreBOM`** read-only property of the [TextDecoder] interface is a
+  /// `Boolean` indicating whether the
+  /// [byte order mark](https://www.w3.org/International/questions/qa-byte-order-mark)
+  /// will be included in the output or skipped over.
   external bool get ignoreBOM;
 }
 extension type TextEncoderEncodeIntoResult._(JSObject _) implements JSObject {
@@ -68,10 +91,10 @@ extension type TextEncoderEncodeIntoResult._(JSObject _) implements JSObject {
     int written,
   });
 
-  external set read(int value);
   external int get read;
-  external set written(int value);
+  external set read(int value);
   external int get written;
+  external set written(int value);
 }
 
 /// The **`TextEncoder`** interface takes a stream of code points as input and
@@ -99,6 +122,12 @@ extension type TextEncoder._(JSObject _) implements JSObject {
     String source,
     JSUint8Array destination,
   );
+
+  /// The **`TextEncoder.encoding`** read-only property returns a string
+  /// containing the name of the encoding algorithm used by the specific
+  /// encoder.
+  ///
+  /// It can only have the following value `utf-8`.
   external String get encoding;
 }
 
@@ -117,10 +146,39 @@ extension type TextDecoderStream._(JSObject _) implements JSObject {
     TextDecoderOptions options,
   ]);
 
+  /// The **`encoding`** read-only property of the [TextDecoderStream] interface
+  /// returns a string containing the name of the encoding algorithm used by the
+  /// specific decoder.
+  ///
+  /// The encoding is set by the
+  /// [constructor](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoderStream/TextDecoderStream)
+  /// `label` parameter, and defaults to `utf-8`.
   external String get encoding;
+
+  /// The **`fatal`** read-only property of the [TextDecoderStream] interface is
+  /// a `boolean` indicating if the error mode of the `TextDecoderStream` object
+  /// is set to `fatal`.
+  ///
+  /// If the property is `true` then a decoder will throw a `TypeError` if it
+  /// encounters malformed data while decoding.
+  /// If `false` the decoder will substitute the invalid data with the
+  /// replacement character `U+FFFD` (�).
+  /// The value of the property is set in the [`TextDecoderStream()`
+  /// constructor](https://developer.mozilla.org/en-US/docs/Web/API/TextDecoderStream/TextDecoderStream).
   external bool get fatal;
+
+  /// The **`ignoreBOM`** read-only property of the [TextDecoderStream]
+  /// interface is a `Boolean` indicating whether the
+  /// [byte order mark](https://www.w3.org/International/questions/qa-byte-order-mark)
+  /// will be included in the output or skipped over.
   external bool get ignoreBOM;
+
+  /// The **`readable`** read-only property of the [TextDecoderStream] interface
+  /// returns a [ReadableStream].
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [TextDecoderStream] interface
+  /// returns a [WritableStream].
   external WritableStream get writable;
 }
 
@@ -135,7 +193,17 @@ extension type TextDecoderStream._(JSObject _) implements JSObject {
 extension type TextEncoderStream._(JSObject _) implements JSObject {
   external factory TextEncoderStream();
 
+  /// The **`encoding`** read-only property of the [TextEncoderStream] interface
+  /// returns a
+  /// string containing the name of the encoding algorithm used by the current
+  /// `TextEncoderStream` object.
   external String get encoding;
+
+  /// The **`readable`** read-only property of the [TextEncoderStream] interface
+  /// returns a [ReadableStream].
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [TextEncoderStream] interface
+  /// returns a [WritableStream].
   external WritableStream get writable;
 }
diff --git a/lib/src/dom/encrypted_media.dart b/lib/src/dom/encrypted_media.dart
index 261aed7a..a8f68cde 100644
--- a/lib/src/dom/encrypted_media.dart
+++ b/lib/src/dom/encrypted_media.dart
@@ -34,20 +34,20 @@ extension type MediaKeySystemConfiguration._(JSObject _) implements JSObject {
     JSArray<JSString> sessionTypes,
   });
 
-  external set label(String value);
   external String get label;
-  external set initDataTypes(JSArray<JSString> value);
+  external set label(String value);
   external JSArray<JSString> get initDataTypes;
-  external set audioCapabilities(JSArray<MediaKeySystemMediaCapability> value);
+  external set initDataTypes(JSArray<JSString> value);
   external JSArray<MediaKeySystemMediaCapability> get audioCapabilities;
-  external set videoCapabilities(JSArray<MediaKeySystemMediaCapability> value);
+  external set audioCapabilities(JSArray<MediaKeySystemMediaCapability> value);
   external JSArray<MediaKeySystemMediaCapability> get videoCapabilities;
-  external set distinctiveIdentifier(MediaKeysRequirement value);
+  external set videoCapabilities(JSArray<MediaKeySystemMediaCapability> value);
   external MediaKeysRequirement get distinctiveIdentifier;
-  external set persistentState(MediaKeysRequirement value);
+  external set distinctiveIdentifier(MediaKeysRequirement value);
   external MediaKeysRequirement get persistentState;
-  external set sessionTypes(JSArray<JSString> value);
+  external set persistentState(MediaKeysRequirement value);
   external JSArray<JSString> get sessionTypes;
+  external set sessionTypes(JSArray<JSString> value);
 }
 extension type MediaKeySystemMediaCapability._(JSObject _) implements JSObject {
   external factory MediaKeySystemMediaCapability({
@@ -56,12 +56,12 @@ extension type MediaKeySystemMediaCapability._(JSObject _) implements JSObject {
     String robustness,
   });
 
-  external set contentType(String value);
   external String get contentType;
-  external set encryptionScheme(String? value);
+  external set contentType(String value);
   external String? get encryptionScheme;
-  external set robustness(String value);
+  external set encryptionScheme(String? value);
   external String get robustness;
+  external set robustness(String value);
 }
 
 /// The **`MediaKeySystemAccess`** interface of the
@@ -94,6 +94,9 @@ extension type MediaKeySystemAccess._(JSObject _) implements JSObject {
   /// The `MediaKeySystemAccess.createMediaKeys()` method returns a
   /// `Promise` that resolves to a new [MediaKeys] object.
   external JSPromise<MediaKeys> createMediaKeys();
+
+  /// The `MediaKeySystemAccess.keySystem` read-only property returns a
+  /// string identifying the key system being used.
   external String get keySystem;
 }
 
@@ -121,8 +124,8 @@ extension type MediaKeys._(JSObject _) implements JSObject {
 extension type MediaKeysPolicy._(JSObject _) implements JSObject {
   external factory MediaKeysPolicy({HDCPVersion minHdcpVersion});
 
-  external set minHdcpVersion(HDCPVersion value);
   external HDCPVersion get minHdcpVersion;
+  external set minHdcpVersion(HDCPVersion value);
 }
 
 /// The **`MediaKeySession`** interface of the
@@ -161,14 +164,39 @@ extension type MediaKeySession._(JSObject _) implements EventTarget, JSObject {
   /// The `MediaKeySession.remove()` method returns a `Promise` after removing
   /// any session data associated with the current object.
   external JSPromise<JSAny?> remove();
+
+  /// The **`MediaKeySession.sessionId`** is a read-only property
+  /// that contains a unique string generated by the content decryption module
+  /// (CDM) for the
+  /// current media object and its associated keys or licenses.
   external String get sessionId;
+
+  /// The **`MediaKeySession.expiration`** read-only property returns
+  /// the time after which the keys in the current session can no longer be used
+  /// to decrypt
+  /// media data, or NaN if no such time exists. This value is determined by the
+  /// CDM and
+  /// measured in milliseconds since January 1, 1970, UTC. This value may change
+  /// during a
+  /// session lifetime, such as when an action triggers the start of a window.
   external num get expiration;
+
+  /// The `MediaKeySession.closed` read-only property returns a
+  /// `Promise` signaling when a [MediaKeySession] closes. This
+  /// promise can only be fulfilled and is never rejected. Closing a session
+  /// means that
+  /// licenses and keys associated with it are no longer valid for decrypting
+  /// media data.
   external JSPromise<JSString> get closed;
+
+  /// The **`MediaKeySession.keyStatuses`** read-only property
+  /// returns a reference to a read-only [MediaKeyStatusMap] of the current
+  /// session's keys and their statuses.
   external MediaKeyStatusMap get keyStatuses;
-  external set onkeystatuseschange(EventHandler value);
   external EventHandler get onkeystatuseschange;
-  external set onmessage(EventHandler value);
+  external set onkeystatuseschange(EventHandler value);
   external EventHandler get onmessage;
+  external set onmessage(EventHandler value);
 }
 
 /// The **`MediaKeyStatusMap`** interface of the
@@ -189,6 +217,10 @@ extension type MediaKeyStatusMap._(JSObject _) implements JSObject {
   /// [MediaKeyStatusMap] interface returns the value associated with the given
   /// key, or `undefined` if there is none.
   external MediaKeyStatus? get(BufferSource keyId);
+
+  /// The **`size`** read-only property of
+  /// the [MediaKeyStatusMap] interface returns the number of key/value paIrs
+  /// in the status map.
   external int get size;
 }
 
@@ -207,7 +239,17 @@ extension type MediaKeyMessageEvent._(JSObject _) implements Event, JSObject {
     MediaKeyMessageEventInit eventInitDict,
   );
 
+  /// The **`MediaKeyMessageEvent.messageType`** read-only property indicates
+  /// the
+  /// type of message. It may be one of `license-request`,
+  /// `license-renewal`, `license-release`, or
+  /// `individualization-request`.
   external MediaKeyMessageType get messageType;
+
+  /// The **`MediaKeyMessageEvent.message`** read-only property
+  /// returns an `ArrayBuffer` with a message from the content decryption
+  /// module.
+  /// Messages vary by key system.
   external JSArrayBuffer get message;
 }
 extension type MediaKeyMessageEventInit._(JSObject _)
@@ -220,10 +262,10 @@ extension type MediaKeyMessageEventInit._(JSObject _)
     required JSArrayBuffer message,
   });
 
-  external set messageType(MediaKeyMessageType value);
   external MediaKeyMessageType get messageType;
-  external set message(JSArrayBuffer value);
+  external set messageType(MediaKeyMessageType value);
   external JSArrayBuffer get message;
+  external set message(JSArrayBuffer value);
 }
 
 /// The **`MediaEncryptedEvent`** interface of the
@@ -242,7 +284,13 @@ extension type MediaEncryptedEvent._(JSObject _) implements Event, JSObject {
     MediaEncryptedEventInit eventInitDict,
   ]);
 
+  /// The read-only **`initDataType`** property of the [MediaKeyMessageEvent]
+  /// returns a case-sensitive string describing the type of the initialization
+  /// data associated with this event.
   external String get initDataType;
+
+  /// The read-only **`initData`** property of the [MediaKeyMessageEvent]
+  /// returns the initialization data contained in this event, if any.
   external JSArrayBuffer? get initData;
 }
 extension type MediaEncryptedEventInit._(JSObject _)
@@ -255,8 +303,8 @@ extension type MediaEncryptedEventInit._(JSObject _)
     JSArrayBuffer? initData,
   });
 
-  external set initDataType(String value);
   external String get initDataType;
-  external set initData(JSArrayBuffer? value);
+  external set initDataType(String value);
   external JSArrayBuffer? get initData;
+  external set initData(JSArrayBuffer? value);
 }
diff --git a/lib/src/dom/entries_api.dart b/lib/src/dom/entries_api.dart
index 07d03d6a..900e6f46 100644
--- a/lib/src/dom/entries_api.dart
+++ b/lib/src/dom/entries_api.dart
@@ -37,10 +37,62 @@ extension type FileSystemEntry._(JSObject _) implements JSObject {
     FileSystemEntryCallback successCallback,
     ErrorCallback errorCallback,
   ]);
+
+  /// The read-only **`isFile`** property of
+  /// the [FileSystemEntry] interface is `true` if the entry
+  /// represents a file (meaning it's a [FileSystemFileEntry]) and
+  /// `false` if it's not.
+  ///
+  /// You can also use [FileSystemEntry.isDirectory] to determine
+  /// if the entry is a directory.
+  ///
+  /// > **Warning:** You should not assume that any entry which isn't a file is
+  /// > a directory or vice versa.
+  /// > There are other types of file descriptors on many operating systems. Be
+  /// > sure to use
+  /// > both `isDirectory` and `isFile` as needed to ensure that the
+  /// > entry is something you know how to work with.
   external bool get isFile;
+
+  /// The read-only **`isDirectory`**
+  /// property of the [FileSystemEntry] interface is `true` if the
+  /// entry represents a directory (meaning it's a [FileSystemDirectoryEntry])
+  /// and `false` if it's not.
+  ///
+  /// You can also use [FileSystemEntry.isFile] to determine if the
+  /// entry is a file.
+  ///
+  /// > **Warning:** You should not assume that any entry which isn't a
+  /// > directory is a file or vice versa.
+  /// > There are other types of file descriptors on many operating systems. Be
+  /// > sure to use
+  /// > both `isDirectory` and `isFile` as needed to ensure that the
+  /// > entry is something you know how to work with.
   external bool get isDirectory;
+
+  /// The read-only **`name`** property of
+  /// the [FileSystemEntry] interface returns a string
+  /// specifying the entry's name; this is the entry within its parent directory
+  /// (the last
+  /// component of the path as indicated by the [FileSystemEntry.fullPath]
+  /// property).
   external String get name;
+
+  /// The read-only **`fullPath`** property
+  /// of the [FileSystemEntry] interface returns a string
+  /// specifying the full, absolute path from the file system's root to the file
+  /// represented
+  /// by the entry.
+  ///
+  /// This can also be thought of as a path which is relative to the root
+  /// directory, with a
+  /// "/" prepended to it to make it absolute.
   external String get fullPath;
+
+  /// The read-only **`filesystem`**
+  /// property of the [FileSystemEntry] interface contains a
+  /// [FileSystem] object that represents the file system on which the entry
+  /// resides.
   external FileSystem get filesystem;
 }
 
@@ -92,10 +144,10 @@ extension type FileSystemFlags._(JSObject _) implements JSObject {
     bool exclusive,
   });
 
-  external set create(bool value);
   external bool get create;
-  external set exclusive(bool value);
+  external set create(bool value);
   external bool get exclusive;
+  external set exclusive(bool value);
 }
 
 /// The `FileSystemDirectoryReader` interface of the
@@ -164,6 +216,16 @@ extension type FileSystemFileEntry._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/FileSystem).
 extension type FileSystem._(JSObject _) implements JSObject {
+  /// The read-only **`name`** property of the
+  /// [FileSystem] interface indicates the file system's name. This
+  /// string is unique among all file systems currently exposed by the
+  /// [File and Directory Entries API](https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API).
   external String get name;
+
+  /// The read-only **`root`** property of the
+  /// [FileSystem] interface specifies a [FileSystemDirectoryEntry]
+  /// object representing the root directory of the file system, for use with
+  /// the
+  /// [File and Directory Entries API](https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API).
   external FileSystemDirectoryEntry get root;
 }
diff --git a/lib/src/dom/fetch.dart b/lib/src/dom/fetch.dart
index 1228f16a..3d1a4298 100644
--- a/lib/src/dom/fetch.dart
+++ b/lib/src/dom/fetch.dart
@@ -225,23 +225,111 @@ extension type Request._(JSObject _) implements JSObject {
   /// `String`.
   /// The response is _always_ decoded using UTF-8.
   external JSPromise<JSString> text();
+
+  /// The **`method`** read-only property of the
+  /// [Request] interface contains the request's method (`GET`,
+  /// `POST`, etc.)
   external String get method;
+
+  /// The **`url`** read-only property of the [Request]
+  /// interface contains the URL of the request.
   external String get url;
+
+  /// The **`headers`** read-only property of the
+  /// [Request] interface contains the [Headers] object associated
+  /// with the request.
   external Headers get headers;
+
+  /// The **`destination`** read-only
+  /// property of the **[Request]** interface returns a string
+  /// describing the type of content being requested.
+  ///
+  /// The string must be one of the `audio`, `audioworklet`,
+  /// `document`, `embed`, `fencedframe`, `font`, `frame`,
+  /// `iframe`, `image`, `manifest`, `object`,
+  /// `paintworklet`, `report`, `script`, `sharedworker`,
+  /// `style`, `track`, `video`, `worker`
+  /// or `xslt` strings, or the empty string, which is the default value.
+  ///
+  /// The `destination` is used by the  to, for example,
+  /// help determine which set of rules to follow for CORS purposes, or how to
+  /// navigate any
+  /// complicated code paths that affect how specific types of request get
+  /// handled.
+  ///
+  /// These destinations vary substantially in how they operate. Some are data
+  /// receptacles,
+  /// where the received data is stored for processing later. Others are
+  /// script-based, in
+  /// which case the received data is delivered to a script by calling it and
+  /// passing the data
+  /// along. Script-based destinations include `script` elements, as well as
+  /// any of the [Worklet]-based destinations
+  /// (including subclasses like [AudioWorklet]), and the
+  /// [Worker]-based destinations, including [ServiceWorker]
+  /// and [SharedWorker].
   external RequestDestination get destination;
+
+  /// The **`referrer`** read-only property of the
+  /// [Request] interface is set by the user agent to be the referrer of the
+  /// Request. (e.g., `client`, `no-referrer`, or a URL.)
+  ///
+  /// > **Note:** If `referrer`'s value is `no-referrer`,
+  /// > it returns an empty string.
   external String get referrer;
+
+  /// The **`referrerPolicy`** read-only property of the
+  /// [Request] interface returns the referrer policy, which governs what
+  /// referrer information, sent in the `Referer` header, should be included
+  /// with the request.
   external ReferrerPolicy get referrerPolicy;
+
+  /// The **`mode`** read-only property of the [Request]
+  /// interface contains the mode of the request (e.g., `cors`,
+  /// `no-cors`, `same-origin`, `navigate` or `websocket`.) This is used
+  /// to determine if cross-origin requests lead to valid responses, and which
+  /// properties of the response are readable.
   external RequestMode get mode;
+
+  /// The **`credentials`** read-only property of the [Request] interface
+  /// indicates whether the user agent should send or receive cookies from the
+  /// other domain in the case of cross-origin requests.
   external RequestCredentials get credentials;
+
+  /// The **`cache`** read-only property of the [Request] interface contains the
+  /// cache mode of the request. It controls how the request will interact with
+  /// the browser's
+  /// [HTTP cache](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching).
   external RequestCache get cache;
+
+  /// The **`redirect`** read-only property of the [Request] interface contains
+  /// the mode for how redirects are handled.
   external RequestRedirect get redirect;
+
+  /// The **`integrity`** read-only property of the [Request] interface contains
+  /// the
+  /// [subresource integrity](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity)
+  /// value of the request.
   external String get integrity;
   external bool get keepalive;
   external bool get isReloadNavigation;
   external bool get isHistoryNavigation;
+
+  /// The read-only **`signal`** property of the [Request] interface returns the
+  /// [AbortSignal] associated with the request.
   external AbortSignal get signal;
   external RequestDuplex get duplex;
+
+  /// The read-only **`body`** property of the [Request]
+  /// interface contains a [ReadableStream] with the body contents
+  /// that have been added to the request. Note that a request using the
+  /// `GET` or `HEAD` method cannot have a body
+  /// and `null` is returned in these cases.
   external ReadableStream? get body;
+
+  /// The read-only **`bodyUsed`** property of the
+  /// [Request] interface is a boolean value that indicates
+  /// whether the request body has been read yet.
   external bool get bodyUsed;
 }
 extension type RequestInit._(JSObject _) implements JSObject {
@@ -263,36 +351,36 @@ extension type RequestInit._(JSObject _) implements JSObject {
     JSAny? window,
   });
 
-  external set method(String value);
   external String get method;
-  external set headers(HeadersInit value);
+  external set method(String value);
   external HeadersInit get headers;
-  external set body(BodyInit? value);
+  external set headers(HeadersInit value);
   external BodyInit? get body;
-  external set referrer(String value);
+  external set body(BodyInit? value);
   external String get referrer;
-  external set referrerPolicy(ReferrerPolicy value);
+  external set referrer(String value);
   external ReferrerPolicy get referrerPolicy;
-  external set mode(RequestMode value);
+  external set referrerPolicy(ReferrerPolicy value);
   external RequestMode get mode;
-  external set credentials(RequestCredentials value);
+  external set mode(RequestMode value);
   external RequestCredentials get credentials;
-  external set cache(RequestCache value);
+  external set credentials(RequestCredentials value);
   external RequestCache get cache;
-  external set redirect(RequestRedirect value);
+  external set cache(RequestCache value);
   external RequestRedirect get redirect;
-  external set integrity(String value);
+  external set redirect(RequestRedirect value);
   external String get integrity;
-  external set keepalive(bool value);
+  external set integrity(String value);
   external bool get keepalive;
-  external set signal(AbortSignal? value);
+  external set keepalive(bool value);
   external AbortSignal? get signal;
-  external set duplex(RequestDuplex value);
+  external set signal(AbortSignal? value);
   external RequestDuplex get duplex;
-  external set priority(RequestPriority value);
+  external set duplex(RequestDuplex value);
   external RequestPriority get priority;
-  external set window(JSAny? value);
+  external set priority(RequestPriority value);
   external JSAny? get window;
+  external set window(JSAny? value);
 }
 
 /// The **`Response`** interface of the
@@ -398,14 +486,79 @@ extension type Response._(JSObject _) implements JSObject {
   /// It returns a promise that resolves with a `String`.
   /// The response is _always_ decoded using UTF-8.
   external JSPromise<JSString> text();
+
+  /// The **`type`** read-only property of the [Response] interface contains the
+  /// type of the response.
+  /// It can be one of the following:
+  ///
+  /// - `basic`: Normal, same origin response, with all headers exposed except
+  ///   "Set-Cookie".
+  /// - `cors`: Response was received from a valid cross-origin request.
+  ///   [Certain headers and the body](https://fetch.spec.whatwg.org/#concept-filtered-response-cors)
+  ///   may be accessed.
+  /// - `error`: Network error.
+  /// No useful information describing the error is available.
+  /// The Response's status is 0, headers are empty and immutable.
+  /// This is the type for a Response obtained from `Response.error()`.
+  /// - `opaque`: Response for "no-cors" request to cross-origin resource.
+  /// [Severely restricted](https://fetch.spec.whatwg.org/#concept-filtered-response-opaque).
+  /// - `opaqueredirect`: The fetch request was made with `redirect: "manual"`.
+  /// The Response's status is 0, headers are empty, body is null and trailer is
+  /// empty.
+  ///
+  /// > **Note:** An "error" Response never really gets exposed to script: such
+  /// > a response to a [fetch] would reject the promise.
   external ResponseType get type;
+
+  /// The **`url`** read-only property of the [Response] interface contains the
+  /// URL of the response.
+  /// The value of the `url` property will be the final URL obtained after any
+  /// redirects.
   external String get url;
+
+  /// The read-only **`redirected`** property of the [Response] interface
+  /// indicates whether or not the response is the result of a request you made
+  /// which was redirected.
+  ///
+  /// > **Note:** Relying on redirected to filter out redirects makes it easy
+  /// > for a forged redirect to prevent your content from working as expected.
+  /// > Instead, you should do the filtering when you call [fetch].
+  /// > See the example [Disallowing redirects](#disallowing_redirects), which
+  /// > shows this being done.
   external bool get redirected;
+
+  /// The **`status`** read-only property of the [Response] interface contains
+  /// the
+  /// [HTTP status codes](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status)
+  /// of the response.
+  ///
+  /// For example, `200` for success, `404` if the resource could not be found.
   external int get status;
+
+  /// The **`ok`** read-only property of the [Response] interface contains a
+  /// Boolean stating whether the response was successful (status in the range
+  /// 200-299) or not.
   external bool get ok;
+
+  /// The **`statusText`** read-only property of the [Response] interface
+  /// contains the status message corresponding to the HTTP status code in
+  /// [Response.status].
+  ///
+  /// For example, this would be `OK` for a status code `200`, `Continue` for
+  /// `100`, `Not Found` for `404`.
   external String get statusText;
+
+  /// The **`headers`** read-only property of the
+  /// [Response] interface contains the [Headers] object associated
+  /// with the response.
   external Headers get headers;
+
+  /// The **`body`** read-only property of the [Response] interface is a
+  /// [ReadableStream] of the body contents.
   external ReadableStream? get body;
+
+  /// The **`bodyUsed`** read-only property of the [Response] interface is a
+  /// boolean value that indicates whether the body has been read yet.
   external bool get bodyUsed;
 }
 extension type ResponseInit._(JSObject _) implements JSObject {
@@ -415,10 +568,10 @@ extension type ResponseInit._(JSObject _) implements JSObject {
     HeadersInit headers,
   });
 
-  external set status(int value);
   external int get status;
-  external set statusText(String value);
+  external set status(int value);
   external String get statusText;
-  external set headers(HeadersInit value);
+  external set statusText(String value);
   external HeadersInit get headers;
+  external set headers(HeadersInit value);
 }
diff --git a/lib/src/dom/fileapi.dart b/lib/src/dom/fileapi.dart
index c5ae35a1..26e82d64 100644
--- a/lib/src/dom/fileapi.dart
+++ b/lib/src/dom/fileapi.dart
@@ -64,7 +64,24 @@ extension type Blob._(JSObject _) implements JSObject {
   /// as
   /// binary data contained in an `ArrayBuffer`.
   external JSPromise<JSArrayBuffer> arrayBuffer();
+
+  /// The **`size`** read-only property of the [Blob] interface returns
+  /// the size of the [Blob] or [File] in bytes.
   external int get size;
+
+  /// The **`type`** read-only property of the [Blob] interface returns the  of
+  /// the file.
+  ///
+  /// > **Note:** Based on the current implementation, browsers won't actually
+  /// > read the bytestream of a file to determine its media type.
+  /// > It is assumed based on the file extension; a PNG image file renamed to
+  /// > .txt would give "_text/plain_" and not "_image/png_". Moreover,
+  /// > `blob.type` is generally reliable only for common file types like
+  /// > images, HTML documents, audio and video.
+  /// > Uncommon file extensions would return an empty string.
+  /// > Client configuration (for instance, the Windows Registry) may result in
+  /// > unexpected values even for common types. **Developers are advised not to
+  /// > rely on this property as a sole validation scheme.**
   external String get type;
 }
 extension type BlobPropertyBag._(JSObject _) implements JSObject {
@@ -73,10 +90,10 @@ extension type BlobPropertyBag._(JSObject _) implements JSObject {
     EndingType endings,
   });
 
-  external set type(String value);
   external String get type;
-  external set endings(EndingType value);
+  external set type(String value);
   external EndingType get endings;
+  external set endings(EndingType value);
 }
 
 /// The **`File`** interface provides information about files and allows
@@ -107,8 +124,25 @@ extension type File._(JSObject _) implements Blob, JSObject {
     FilePropertyBag options,
   ]);
 
+  /// The **`name`** read-only property of the [File] interface returns the name
+  /// of the file represented by a [File] object. For security
+  /// reasons, the path is excluded from this property.
   external String get name;
+
+  /// The **`lastModified`** read-only property of the [File] interface provides
+  /// the
+  /// last modified date of the file as the number of milliseconds since the
+  /// Unix
+  /// epoch (January 1, 1970 at midnight). Files without a known last modified
+  /// date return the
+  /// current date.
   external int get lastModified;
+
+  /// The **`webkitRelativePath`** read-only property of the [File] interface
+  /// contains a string which specifies the file's path relative to the
+  /// directory selected by the user in an `input` element with its
+  /// [`webkitdirectory`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#webkitdirectory)
+  /// attribute set.
   external String get webkitRelativePath;
 }
 extension type FilePropertyBag._(JSObject _)
@@ -119,8 +153,8 @@ extension type FilePropertyBag._(JSObject _)
     int lastModified,
   });
 
-  external set lastModified(int value);
   external int get lastModified;
+  external set lastModified(int value);
 }
 
 /// The **`FileList`** interface represents an object of this type returned by
@@ -160,6 +194,9 @@ extension type FileList._(JSObject _) implements JSObject {
   /// The **`item()`** method of the [FileList] interface returns a [File]
   /// object representing the file at the specified index in the file list.
   external File? item(int index);
+
+  /// The **`length`** read-only property of the [FileList] interface returns
+  /// the number of files in the `FileList`.
   external int get length;
 }
 
@@ -264,21 +301,50 @@ extension type FileReader._(JSObject _) implements EventTarget, JSObject {
   /// operation. Upon return,
   /// the [FileReader.readyState] will be `DONE`.
   external void abort();
+
+  /// The **`readyState`** read-only property of the [FileReader] interface
+  /// provides the current state of the reading operation a `FileReader` is in.
+  /// A `FileReader` exists in one of the following states:
+  ///
+  /// | Value | State     | Description                                                   |
+  /// | ----- | --------- | ------------------------------------------------------------- |
+  /// | `0`   | `EMPTY`   | Reader has been created. None of the read methods called yet. |
+  /// | `1`   | `LOADING` | A read method has been called.                                |
+  /// | `2`   | `DONE`    | The operation is complete.                                    |
+  ///
+  /// - `EMPTY`
+  ///   - : The `FileReader` has been created, but no readAs method was called yet.
+  /// - `LOADING`
+  ///   - : A readAs method was invoked. A [File] or [Blob] is being read, and no error has occurred yet.
+  /// - `DONE`
+  ///   - : The read operation is complete. This could mean that: the entire [File] or [Blob] has been read into memory, a file read error occurred, or [FileReader.abort] was called and the read was cancelled.
   external int get readyState;
+
+  /// The **`result`** read-only property of the [FileReader] interface returns
+  /// the
+  /// file's contents. This property is only valid after the read operation is
+  /// complete, and
+  /// the format of the data depends on which of the methods was used to
+  /// initiate the read
+  /// operation.
   external JSAny? get result;
+
+  /// The **`error`** read-only property of the [FileReader] interface returns
+  /// the
+  /// error that occurred while reading the file.
   external DOMException? get error;
-  external set onloadstart(EventHandler value);
   external EventHandler get onloadstart;
-  external set onprogress(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onprogress;
-  external set onload(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onload;
-  external set onabort(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onabort;
-  external set onerror(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onerror;
-  external set onloadend(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onloadend;
+  external set onloadend(EventHandler value);
 }
 
 /// The **`FileReaderSync`** interface allows to read [File] or [Blob] objects
diff --git a/lib/src/dom/fs.dart b/lib/src/dom/fs.dart
index 7c1ff0a5..3e61d935 100644
--- a/lib/src/dom/fs.dart
+++ b/lib/src/dom/fs.dart
@@ -36,15 +36,26 @@ extension type FileSystemHandle._(JSObject _) implements JSObject {
   /// [FileSystemHandle] interface compares two [FileSystemHandle] to see if the
   /// associated entries (either a file or directory) match.
   external JSPromise<JSBoolean> isSameEntry(FileSystemHandle other);
+
+  /// The **`kind`** read-only property of the
+  /// [FileSystemHandle] interface returns the type of entry. This is
+  /// `'file'` if the associated entry is a file or `'directory'`. It is
+  /// used to distinguish files from directories when iterating over the
+  /// contents of a
+  /// directory.
   external FileSystemHandleKind get kind;
+
+  /// The **`name`** read-only property of the
+  /// [FileSystemHandle] interface returns the name of the entry represented by
+  /// handle.
   external String get name;
 }
 extension type FileSystemCreateWritableOptions._(JSObject _)
     implements JSObject {
   external factory FileSystemCreateWritableOptions({bool keepExistingData});
 
-  external set keepExistingData(bool value);
   external bool get keepExistingData;
+  external set keepExistingData(bool value);
 }
 
 /// The **`FileSystemFileHandle`** interface of the [File System API] represents
@@ -105,20 +116,20 @@ extension type FileSystemFileHandle._(JSObject _)
 extension type FileSystemGetFileOptions._(JSObject _) implements JSObject {
   external factory FileSystemGetFileOptions({bool create});
 
-  external set create(bool value);
   external bool get create;
+  external set create(bool value);
 }
 extension type FileSystemGetDirectoryOptions._(JSObject _) implements JSObject {
   external factory FileSystemGetDirectoryOptions({bool create});
 
-  external set create(bool value);
   external bool get create;
+  external set create(bool value);
 }
 extension type FileSystemRemoveOptions._(JSObject _) implements JSObject {
   external factory FileSystemRemoveOptions({bool recursive});
 
-  external set recursive(bool value);
   external bool get recursive;
+  external set recursive(bool value);
 }
 
 /// The **`FileSystemDirectoryHandle`** interface of the [File System API]
@@ -176,14 +187,14 @@ extension type WriteParams._(JSObject _) implements JSObject {
     JSAny? data,
   });
 
-  external set type(WriteCommandType value);
   external WriteCommandType get type;
-  external set size(int? value);
+  external set type(WriteCommandType value);
   external int? get size;
-  external set position(int? value);
+  external set size(int? value);
   external int? get position;
-  external set data(JSAny? value);
+  external set position(int? value);
   external JSAny? get data;
+  external set data(JSAny? value);
 }
 
 /// The **`FileSystemWritableFileStream`** interface of the [File System API] is
@@ -233,8 +244,8 @@ extension type FileSystemWritableFileStream._(JSObject _)
 extension type FileSystemReadWriteOptions._(JSObject _) implements JSObject {
   external factory FileSystemReadWriteOptions({int at});
 
-  external set at(int value);
   external int get at;
+  external set at(int value);
 }
 
 /// The **`FileSystemSyncAccessHandle`** interface of the [File System API]
diff --git a/lib/src/dom/gamepad.dart b/lib/src/dom/gamepad.dart
index 73d472bf..497e539a 100644
--- a/lib/src/dom/gamepad.dart
+++ b/lib/src/dom/gamepad.dart
@@ -35,13 +35,104 @@ typedef GamepadHapticEffectType = String;
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Gamepad).
 extension type Gamepad._(JSObject _) implements JSObject {
+  /// The **`Gamepad.id`** property of the [Gamepad]
+  /// interface returns a string containing some information about the
+  /// controller.
+  ///
+  /// The exact syntax is not strictly specified, but in Firefox it will contain
+  /// three pieces
+  /// of information separated by dashes (`-`):
+  ///
+  /// - Two 4-digit hexadecimal strings containing the USB vendor and product id
+  ///   of the
+  /// controller
+  /// - The name of the controller as provided by the driver.
+  ///
+  /// For example, a PS2 controller returned **810-3-USB Gamepad**.
+  ///
+  /// This information is intended to allow you to find a mapping for the
+  /// controls on the
+  /// device as well as display useful feedback to the user.
   external String get id;
+
+  /// The **`Gamepad.index`** property of the [Gamepad]
+  /// interface returns an integer that is auto-incremented to be unique for
+  /// each device
+  /// currently connected to the system.
+  ///
+  /// This can be used to distinguish multiple controllers; a gamepad that is
+  /// disconnected
+  /// and reconnected will retain the same index.
   external int get index;
+
+  /// The **`Gamepad.connected`** property of the
+  /// [Gamepad] interface returns a boolean indicating whether the gamepad is
+  /// still connected to the system.
+  ///
+  /// If the gamepad is connected, the value is `true`; if not, it is
+  /// `false`.
   external bool get connected;
+
+  /// The **`Gamepad.timestamp`** property of the
+  /// [Gamepad] interface returns a [DOMHighResTimeStamp]
+  /// representing the last time the data for this gamepad was updated.
+  ///
+  /// The idea behind this is to allow developers to determine if the `axes` and
+  /// `button` data have been updated from the hardware. The value must be
+  /// relative to the `navigationStart` attribute of the
+  /// [PerformanceTiming] interface. Values are monotonically
+  /// increasing, meaning that they can be compared to determine the ordering of
+  /// updates, as
+  /// newer values will always be greater than or equal to older values.
+  ///
+  /// > **Note:** This property is not currently supported anywhere.
   external DOMHighResTimeStamp get timestamp;
+
+  /// The **`Gamepad.mapping`** property of the
+  /// [Gamepad] interface returns a string indicating whether the browser has
+  /// remapped the controls on the device to a known layout.
+  ///
+  /// The currently supported known layouts are:
+  ///
+  /// - "standard" for the
+  ///   [standard gamepad](https://w3c.github.io/gamepad/#remapping).
+  /// - "xr-standard for the
+  ///   [standard XR gamepad](https://immersive-web.github.io/webxr-gamepads-module/#xr-standard-heading).
+  ///   See also [XRInputSource.gamepad].
   external GamepadMappingType get mapping;
+
+  /// The **`Gamepad.axes`** property of the [Gamepad]
+  /// interface returns an array representing the controls with axes present on
+  /// the device
+  /// (e.g. analog thumb sticks).
+  ///
+  /// Each entry in the array is a floating point value in the range -1.0 – 1.0,
+  /// representing
+  /// the axis position from the lowest value (-1.0) to the highest value (1.0).
   external JSArray<JSNumber> get axes;
+
+  /// The **`Gamepad.buttons`** property of the [Gamepad] interface returns an
+  /// array of [gamepadButton] objects representing the
+  /// buttons present on the device.
+  ///
+  /// Each entry in the array is 0 if the button is not pressed, and non-zero
+  /// (typically 1.0)
+  /// if the button is pressed. Each [gamepadButton] object has two properties:
+  /// `pressed` and `value`:
+  ///
+  /// - The `pressed` property is a boolean indicating whether the button is
+  /// currently pressed (`true`) or unpressed (`false`).
+  /// - The `value` property is a floating point value used to enable
+  /// representing analog buttons, such as the triggers on many modern gamepads.
+  /// The values
+  /// are normalized to the range 0.0 – 1.0, with 0.0 representing a button that
+  /// is not
+  /// pressed, and 1.0 representing a button that is fully pressed.
   external JSArray<GamepadButton> get buttons;
+
+  /// The **`vibrationActuator`** read-only property of the [Gamepad] interface
+  /// returns a [GamepadHapticActuator] object, which represents haptic feedback
+  /// hardware available on the controller.
   external GamepadHapticActuator get vibrationActuator;
 }
 
@@ -57,8 +148,31 @@ extension type Gamepad._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/GamepadButton).
 extension type GamepadButton._(JSObject _) implements JSObject {
+  /// The **`GamepadButton.pressed`** property of the
+  /// [GamepadButton] interface returns a `boolean` indicating whether
+  /// the button is currently pressed (`true`) or unpressed (`false`).
   external bool get pressed;
+
+  /// The **`touched`** property of the
+  /// [GamepadButton] interface returns a `boolean` indicating whether
+  /// a button capable of detecting touch is currently touched (`true`) or not
+  /// touched (`false`).
+  ///
+  /// If the button is not capable of detecting touch but can return an analog
+  /// value, the property will be `true` if the value is greater than `0`, and
+  /// `false` otherwise. If the button is not capable of detecting touch and can
+  /// only report a digital value, then it should mirror the
+  /// [GamepadButton.pressed] property.
   external bool get touched;
+
+  /// The **`GamepadButton.value`** property of the
+  /// [GamepadButton] interface returns a double value used to represent the
+  /// current state of analog buttons on many modern gamepads, such as the
+  /// triggers.
+  ///
+  /// The values are normalized to the range `0.0` — `1.0`, with
+  /// `0.0` representing a button that is not pressed, and 1.0 representing a
+  /// button that is fully pressed.
   external num get value;
 }
 
@@ -91,14 +205,14 @@ extension type GamepadEffectParameters._(JSObject _) implements JSObject {
     num weakMagnitude,
   });
 
-  external set duration(int value);
   external int get duration;
-  external set startDelay(int value);
+  external set duration(int value);
   external int get startDelay;
-  external set strongMagnitude(num value);
+  external set startDelay(int value);
   external num get strongMagnitude;
-  external set weakMagnitude(num value);
+  external set strongMagnitude(num value);
   external num get weakMagnitude;
+  external set weakMagnitude(num value);
 }
 
 /// The GamepadEvent interface of the Gamepad API contains references to
@@ -116,6 +230,11 @@ extension type GamepadEvent._(JSObject _) implements Event, JSObject {
     GamepadEventInit eventInitDict,
   );
 
+  /// The **`GamepadEvent.gamepad`** property of the
+  /// **[GamepadEvent] interface** returns a [Gamepad]
+  /// object, providing access to the associated gamepad data for fired
+  /// [Window.gamepadconnected_event] and [Window.gamepaddisconnected_event]
+  /// events.
   external Gamepad get gamepad;
 }
 extension type GamepadEventInit._(JSObject _) implements EventInit, JSObject {
@@ -126,6 +245,6 @@ extension type GamepadEventInit._(JSObject _) implements EventInit, JSObject {
     required Gamepad gamepad,
   });
 
-  external set gamepad(Gamepad value);
   external Gamepad get gamepad;
+  external set gamepad(Gamepad value);
 }
diff --git a/lib/src/dom/geolocation.dart b/lib/src/dom/geolocation.dart
index b46a5216..c363d974 100644
--- a/lib/src/dom/geolocation.dart
+++ b/lib/src/dom/geolocation.dart
@@ -66,12 +66,12 @@ extension type PositionOptions._(JSObject _) implements JSObject {
     int maximumAge,
   });
 
-  external set enableHighAccuracy(bool value);
   external bool get enableHighAccuracy;
-  external set timeout(int value);
+  external set enableHighAccuracy(bool value);
   external int get timeout;
-  external set maximumAge(int value);
+  external set timeout(int value);
   external int get maximumAge;
+  external set maximumAge(int value);
 }
 
 /// The **`GeolocationPosition`** interface represents the position of the
@@ -84,7 +84,17 @@ extension type PositionOptions._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/GeolocationPosition).
 extension type GeolocationPosition._(JSObject _) implements JSObject {
+  /// The **`coords`** read-only property of the [GeolocationPosition] interface
+  /// returns a [GeolocationCoordinates] object representing a geographic
+  /// position. It contains the location, that is longitude and latitude on the
+  /// Earth, the altitude, and the speed of the object concerned, regrouped
+  /// inside the returned value. It also contains accuracy information about
+  /// these values.
   external GeolocationCoordinates get coords;
+
+  /// The **`timestamp`** read-only property of the [GeolocationPosition]
+  /// interface represents the date and time that the position was acquired by
+  /// the device.
   external EpochTimeStamp get timestamp;
 }
 
@@ -99,12 +109,55 @@ extension type GeolocationPosition._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/GeolocationCoordinates).
 extension type GeolocationCoordinates._(JSObject _) implements JSObject {
+  /// The **`accuracy`** read-only property of the [GeolocationCoordinates]
+  /// interface is a strictly positive `double` representing the accuracy, with
+  /// a 95% confidence level, of the [GeolocationCoordinates.latitude] and
+  /// [GeolocationCoordinates.longitude] properties expressed in meters.
   external num get accuracy;
+
+  /// The **`latitude`** read-only property of the [GeolocationCoordinates]
+  /// interface is a `double` representing the latitude of the position in
+  /// decimal degrees.
   external num get latitude;
+
+  /// The **`longitude`** read-only property of the [GeolocationCoordinates]
+  /// interface is a number which represents the longitude of a geographical
+  /// position, specified in decimal degrees.
+  /// Together with a timestamp, given as  in milliseconds, indicating a time of
+  /// measurement, the `GeolocationCoordinates` object is part of the
+  /// [GeolocationPosition] interface, which is the object type returned by
+  /// Geolocation API functions that obtain and return a geographical position.
   external num get longitude;
+
+  /// The **`altitude`** read-only property of the [GeolocationCoordinates]
+  /// interface is a `double` representing the altitude of the position in
+  /// meters above the
+  /// [WGS84](https://gis-lab.info/docs/nima-tr8350.2-wgs84fin.pdf) ellipsoid
+  /// (which defines the nominal sea level surface). This value is `null` if the
+  /// implementation cannot provide this data.
   external num? get altitude;
+
+  /// The **`altitudeAccuracy`** read-only property of the
+  /// [GeolocationCoordinates] interface is a strictly positive `double`
+  /// representing the accuracy, with a 95% confidence level, of the `altitude`
+  /// expressed in meters. This value is `null` if the implementation doesn't
+  /// support measuring altitude.
   external num? get altitudeAccuracy;
+
+  /// The **`heading`** read-only property of the [GeolocationCoordinates]
+  /// interface is a `double` representing the direction in which the device is
+  /// traveling. This value, specified in degrees, indicates how far off from
+  /// heading due north the device is. `0` degrees represents true north, and
+  /// the direction is determined clockwise (which means that east is `90`
+  /// degrees and west is `270` degrees). If [GeolocationCoordinates.speed] is
+  /// `0`, `heading` is `NaN`. If the device is not able to provide heading
+  /// information, this value is `null`.
   external num? get heading;
+
+  /// The **`speed`** read-only property of the [GeolocationCoordinates]
+  /// interface is a `double` representing the velocity of the device in meters
+  /// per second. This value is `null` if the implementation is not able to
+  /// measure it.
   external num? get speed;
 }
 
@@ -119,6 +172,48 @@ extension type GeolocationPositionError._(JSObject _) implements JSObject {
   external static int get PERMISSION_DENIED;
   external static int get POSITION_UNAVAILABLE;
   external static int get TIMEOUT;
+
+  /// The **`code`** read-only property of the [GeolocationPositionError]
+  /// interface is an `unsigned short` representing the error code.
+  ///
+  /// The following values are possible:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th scope="col">Value</th>
+  ///       <th scope="col">Associated constant</th>
+  ///       <th scope="col">Description</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td><code>1</code></td>
+  ///       <td><code>PERMISSION_DENIED</code></td>
+  ///       <td>
+  /// The acquisition of the geolocation information failed because the page
+  /// didn't have the permission to do it.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>2</code></td>
+  ///       <td><code>POSITION_UNAVAILABLE</code></td>
+  ///       <td>
+  /// The acquisition of the geolocation failed because one or several internal
+  /// sources of position returned an internal error.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>3</code></td>
+  ///       <td><code>TIMEOUT</code></td>
+  ///       <td>Geolocation information was not obtained in the allowed time.</td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external int get code;
+
+  /// The **`message`** read-only property of the [GeolocationPositionError]
+  /// interface returns a human-readable string describing the details of the
+  /// error.
   external String get message;
 }
diff --git a/lib/src/dom/geometry.dart b/lib/src/dom/geometry.dart
index 6f5f12bd..99e13e81 100644
--- a/lib/src/dom/geometry.dart
+++ b/lib/src/dom/geometry.dart
@@ -58,9 +58,48 @@ extension type DOMPointReadOnly._(JSObject _) implements JSObject {
   /// `toJSON()` returns an object giving the
   /// form of the point object.
   external JSObject toJSON();
+
+  /// The **`DOMPointReadOnly`** interface's
+  /// **`x`** property holds the horizontal coordinate, x, for a
+  /// read-only point in space. This property cannot be changed by JavaScript
+  /// code in this
+  /// read-only version of the `DOMPoint` object.
+  ///
+  /// In general, positive values `x` mean to the right, and negative values of
+  /// `x` means to the left, assuming no transforms have resulted in a reversal.
   external num get x;
+
+  /// The **`DOMPointReadOnly`** interface's
+  /// **`y`** property holds the vertical coordinate, y, for a
+  /// read-only point in space.
+  ///
+  /// If your script needs to be able to change the value
+  /// of this property, you should instead use the [DOMPoint] object.
+  ///
+  /// In general, positive values of `y` mean downward, and negative values of
+  /// `y` mean upward, assuming no transforms have resulted in a reversal.
   external num get y;
+
+  /// The **`DOMPointReadOnly`** interface's
+  /// **`z`** property holds the depth coordinate, z, for a
+  /// read-only point in space.
+  ///
+  /// If your script needs to be able to change the value
+  /// of this property, you should instead use the [DOMPoint] object.
+  ///
+  /// In general, positive values of `z` mean toward the user (out from the
+  /// screen), and negative values of `z` mean away from the user (into the
+  /// screen), assuming no transforms have resulted in a reversal.
   external num get z;
+
+  /// The **`DOMPointReadOnly`** interface's
+  /// **`w`** property holds the point's perspective value,
+  /// `w`, for a read-only point in space.
+  ///
+  /// If your script needs to be able
+  /// to change the value of this property, you should instead use the
+  /// [DOMPoint]
+  /// object.
   external num get w;
 }
 
@@ -87,14 +126,43 @@ extension type DOMPoint._(JSObject _) implements DOMPointReadOnly, JSObject {
   ]);
 
   external static DOMPoint fromPoint([DOMPointInit other]);
-  external set x(num value);
+
+  /// The **`DOMPoint`** interface's
+  /// **`x`** property holds the horizontal coordinate, x, for a
+  /// point in space.
+  ///
+  /// In general, positive values `x` mean to the right,
+  /// and negative values of `x` means to the left, barring any transforms that
+  /// may
+  /// have altered the orientation of the axes.
   external num get x;
-  external set y(num value);
+  external set x(num value);
+
+  /// The **`DOMPoint`** interface's
+  /// **`y`** property holds the vertical coordinate, _y_,
+  /// for a point in space.
+  ///
+  /// Unless transforms have been applied to alter the
+  /// orientation, the value of `y` increases downward and decreases upward.
   external num get y;
-  external set z(num value);
+  external set y(num value);
+
+  /// The **`DOMPoint`** interface's
+  /// **`z`** property specifies the depth coordinate of a point in
+  /// space.
+  ///
+  /// Unless transforms have changed the orientation, a `z` of 0 is
+  /// the plane of the screen, with positive values extending outward toward the
+  /// user from the
+  /// screen, and negative values receding into the distance behind the screen.
   external num get z;
-  external set w(num value);
+  external set z(num value);
+
+  /// The **`DOMPoint`** interface's
+  /// **`w`** property holds the point's perspective value, w, for a
+  /// point in space.
   external num get w;
+  external set w(num value);
 }
 extension type DOMPointInit._(JSObject _) implements JSObject {
   external factory DOMPointInit({
@@ -104,14 +172,14 @@ extension type DOMPointInit._(JSObject _) implements JSObject {
     num w,
   });
 
-  external set x(num value);
   external num get x;
-  external set y(num value);
+  external set x(num value);
   external num get y;
-  external set z(num value);
+  external set y(num value);
   external num get z;
-  external set w(num value);
+  external set z(num value);
   external num get w;
+  external set w(num value);
 }
 
 /// The **`DOMRectReadOnly`** interface specifies the standard properties (also
@@ -131,13 +199,41 @@ extension type DOMRectReadOnly._(JSObject _) implements JSObject {
 
   external static DOMRectReadOnly fromRect([DOMRectInit other]);
   external JSObject toJSON();
+
+  /// The **`x`** read-only property of the **`DOMRectReadOnly`** interface
+  /// represents the x coordinate of the `DOMRect`'s origin.
   external num get x;
+
+  /// The **`y`** read-only property of the **`DOMRectReadOnly`** interface
+  /// represents the y coordinate of the `DOMRect`'s origin.
   external num get y;
+
+  /// The **`width`** read-only property of the **`DOMRectReadOnly`** interface
+  /// represents the width of the `DOMRect`.
   external num get width;
+
+  /// The **`height`** read-only property of the **`DOMRectReadOnly`** interface
+  /// represents the height of the `DOMRect`.
   external num get height;
+
+  /// The **`top`** read-only property of the **`DOMRectReadOnly`** interface
+  /// returns the top coordinate value of the `DOMRect`. (Has the same value as
+  /// `y`, or `y + height` if `height` is negative.)
   external num get top;
+
+  /// The **`right`** read-only property of the **`DOMRectReadOnly`** interface
+  /// returns the right coordinate value of the `DOMRect`. (Has the same value
+  /// as `x + width`, or `x` if `width` is negative.)
   external num get right;
+
+  /// The **`bottom`** read-only property of the **`DOMRectReadOnly`** interface
+  /// returns the bottom coordinate value of the `DOMRect`. (Has the same value
+  /// as `y + height`, or `y` if `height` is negative.)
   external num get bottom;
+
+  /// The **`left`** read-only property of the **`DOMRectReadOnly`** interface
+  /// returns the left coordinate value of the `DOMRect`. (Has the same value as
+  /// `x`, or `x + width` if `width` is negative.)
   external num get left;
 }
 
@@ -163,14 +259,14 @@ extension type DOMRect._(JSObject _) implements DOMRectReadOnly, JSObject {
   ]);
 
   external static DOMRect fromRect([DOMRectInit other]);
-  external set x(num value);
   external num get x;
-  external set y(num value);
+  external set x(num value);
   external num get y;
-  external set width(num value);
+  external set y(num value);
   external num get width;
-  external set height(num value);
+  external set width(num value);
   external num get height;
+  external set height(num value);
 }
 extension type DOMRectInit._(JSObject _) implements JSObject {
   external factory DOMRectInit({
@@ -180,14 +276,14 @@ extension type DOMRectInit._(JSObject _) implements JSObject {
     num height,
   });
 
-  external set x(num value);
   external num get x;
-  external set y(num value);
+  external set x(num value);
   external num get y;
-  external set width(num value);
+  external set y(num value);
   external num get width;
-  external set height(num value);
+  external set width(num value);
   external num get height;
+  external set height(num value);
 }
 extension type DOMRectList._(JSObject _) implements JSObject {
   external DOMRect? item(int index);
@@ -229,14 +325,14 @@ extension type DOMQuadInit._(JSObject _) implements JSObject {
     DOMPointInit p4,
   });
 
-  external set p1(DOMPointInit value);
   external DOMPointInit get p1;
-  external set p2(DOMPointInit value);
+  external set p1(DOMPointInit value);
   external DOMPointInit get p2;
-  external set p3(DOMPointInit value);
+  external set p2(DOMPointInit value);
   external DOMPointInit get p3;
-  external set p4(DOMPointInit value);
+  external set p3(DOMPointInit value);
   external DOMPointInit get p4;
+  external set p4(DOMPointInit value);
 }
 
 /// The **`DOMMatrixReadOnly`** interface represents a read-only 4×4 matrix,
@@ -404,50 +500,50 @@ extension type DOMMatrix._(JSObject _) implements DOMMatrixReadOnly, JSObject {
   external DOMMatrix skewYSelf([num sy]);
   external DOMMatrix invertSelf();
   external DOMMatrix setMatrixValue(String transformList);
-  external set a(num value);
   external num get a;
-  external set b(num value);
+  external set a(num value);
   external num get b;
-  external set c(num value);
+  external set b(num value);
   external num get c;
-  external set d(num value);
+  external set c(num value);
   external num get d;
-  external set e(num value);
+  external set d(num value);
   external num get e;
-  external set f(num value);
+  external set e(num value);
   external num get f;
-  external set m11(num value);
+  external set f(num value);
   external num get m11;
-  external set m12(num value);
+  external set m11(num value);
   external num get m12;
-  external set m13(num value);
+  external set m12(num value);
   external num get m13;
-  external set m14(num value);
+  external set m13(num value);
   external num get m14;
-  external set m21(num value);
+  external set m14(num value);
   external num get m21;
-  external set m22(num value);
+  external set m21(num value);
   external num get m22;
-  external set m23(num value);
+  external set m22(num value);
   external num get m23;
-  external set m24(num value);
+  external set m23(num value);
   external num get m24;
-  external set m31(num value);
+  external set m24(num value);
   external num get m31;
-  external set m32(num value);
+  external set m31(num value);
   external num get m32;
-  external set m33(num value);
+  external set m32(num value);
   external num get m33;
-  external set m34(num value);
+  external set m33(num value);
   external num get m34;
-  external set m41(num value);
+  external set m34(num value);
   external num get m41;
-  external set m42(num value);
+  external set m41(num value);
   external num get m42;
-  external set m43(num value);
+  external set m42(num value);
   external num get m43;
-  external set m44(num value);
+  external set m43(num value);
   external num get m44;
+  external set m44(num value);
 }
 extension type DOMMatrix2DInit._(JSObject _) implements JSObject {
   external factory DOMMatrix2DInit({
@@ -465,30 +561,30 @@ extension type DOMMatrix2DInit._(JSObject _) implements JSObject {
     num m42,
   });
 
-  external set a(num value);
   external num get a;
-  external set b(num value);
+  external set a(num value);
   external num get b;
-  external set c(num value);
+  external set b(num value);
   external num get c;
-  external set d(num value);
+  external set c(num value);
   external num get d;
-  external set e(num value);
+  external set d(num value);
   external num get e;
-  external set f(num value);
+  external set e(num value);
   external num get f;
-  external set m11(num value);
+  external set f(num value);
   external num get m11;
-  external set m12(num value);
+  external set m11(num value);
   external num get m12;
-  external set m21(num value);
+  external set m12(num value);
   external num get m21;
-  external set m22(num value);
+  external set m21(num value);
   external num get m22;
-  external set m41(num value);
+  external set m22(num value);
   external num get m41;
-  external set m42(num value);
+  external set m41(num value);
   external num get m42;
+  external set m42(num value);
 }
 extension type DOMMatrixInit._(JSObject _)
     implements DOMMatrix2DInit, JSObject {
@@ -518,26 +614,26 @@ extension type DOMMatrixInit._(JSObject _)
     bool is2D,
   });
 
-  external set m13(num value);
   external num get m13;
-  external set m14(num value);
+  external set m13(num value);
   external num get m14;
-  external set m23(num value);
+  external set m14(num value);
   external num get m23;
-  external set m24(num value);
+  external set m23(num value);
   external num get m24;
-  external set m31(num value);
+  external set m24(num value);
   external num get m31;
-  external set m32(num value);
+  external set m31(num value);
   external num get m32;
-  external set m33(num value);
+  external set m32(num value);
   external num get m33;
-  external set m34(num value);
+  external set m33(num value);
   external num get m34;
-  external set m43(num value);
+  external set m34(num value);
   external num get m43;
-  external set m44(num value);
+  external set m43(num value);
   external num get m44;
-  external set is2D(bool value);
+  external set m44(num value);
   external bool get is2D;
+  external set is2D(bool value);
 }
diff --git a/lib/src/dom/hr_time.dart b/lib/src/dom/hr_time.dart
index a3e4db7a..0ce632f2 100644
--- a/lib/src/dom/hr_time.dart
+++ b/lib/src/dom/hr_time.dart
@@ -184,9 +184,52 @@ extension type Performance._(JSObject _) implements EventTarget, JSObject {
   /// The **`clearMeasures()`** method removes all or specific
   /// [PerformanceMeasure] objects from the browser's performance timeline.
   external void clearMeasures([String measureName]);
+
+  /// The **`timeOrigin`** read-only property of the [Performance] interface
+  /// returns the high resolution timestamp that is used as the baseline for
+  /// performance-related timestamps.
+  ///
+  /// In Window contexts, this value represents the time when navigation has
+  /// started. In [Worker] and [ServiceWorker] contexts, this value represents
+  /// the time when the worker is run. You can use this property to synchronize
+  /// the time origins between the contexts (see example below).
+  ///
+  /// > **Note:** The value of `performance.timeOrigin` may differ from the
+  /// > value returned by `Date.now()` executed at the time origin, because
+  /// > `Date.now()` may have been impacted by system and user clock
+  /// > adjustments, clock skew, etc. The `timeOrigin` property is a
+  /// > [monotonic clock](https://w3c.github.io/hr-time/#dfn-monotonic-clock)
+  /// > which current time never decreases and which isn't subject to these
+  /// > adjustments.
   external DOMHighResTimeStamp get timeOrigin;
+
+  /// The legacy
+  /// **`Performance.timing`** read-only
+  /// property returns a [PerformanceTiming] object containing latency-related
+  /// performance information.
+  ///
+  /// This property is not available in workers.
+  ///
+  /// > **Warning:** This property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
   external PerformanceTiming get timing;
+
+  /// The legacy
+  /// **`Performance.navigation`**
+  /// read-only property returns a [PerformanceNavigation] object representing
+  /// the type of navigation that occurs in the given browsing context, such as
+  /// the number of
+  /// redirections needed to fetch the resource.
+  ///
+  /// This property is not available in workers.
+  ///
+  /// > **Warning:** This property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the
+  /// > [PerformanceNavigationTiming] interface instead.
   external PerformanceNavigation get navigation;
-  external set onresourcetimingbufferfull(EventHandler value);
   external EventHandler get onresourcetimingbufferfull;
+  external set onresourcetimingbufferfull(EventHandler value);
 }
diff --git a/lib/src/dom/html.dart b/lib/src/dom/html.dart
index 4288e03e..358cc43e 100644
--- a/lib/src/dom/html.dart
+++ b/lib/src/dom/html.dart
@@ -126,6 +126,9 @@ extension type HTMLAllCollection._(JSObject _) implements JSObject {
   /// element located at the specified offset into the collection, or the
   /// element with the specified value for its `id` or `name` attribute.
   external JSObject? item([String nameOrIndex]);
+
+  /// The **`HTMLAllCollection.length`** property returns the number of items in
+  /// this [HTMLAllCollection].
   external int get length;
 }
 
@@ -163,8 +166,19 @@ extension type HTMLFormControlsCollection._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/RadioNodeList).
 extension type RadioNodeList._(JSObject _) implements NodeList, JSObject {
-  external set value(String value);
+  /// If the underlying element collection contains radio buttons, the
+  /// **`RadioNodeList.value`** property represents the checked radio
+  /// button. On retrieving the `value` property, the `value` of the
+  /// currently `checked` radio button is returned as a string. If the
+  /// collection
+  /// does not contain any radio buttons or none of the radio buttons in the
+  /// collection is in
+  /// `checked` state, the empty string is returned. On setting the
+  /// `value` property, the first radio button input element whose
+  /// `value` property is equal to the new value will be set to
+  /// `checked`.
   external String get value;
+  external set value(String value);
 }
 
 /// The **`HTMLOptionsCollection`** interface represents a collection of
@@ -185,10 +199,10 @@ extension type HTMLOptionsCollection._(JSObject _)
     JSAny? before,
   ]);
   external void remove(int index);
-  external set length(int value);
   external int get length;
-  external set selectedIndex(int value);
+  external set length(int value);
   external int get selectedIndex;
+  external set selectedIndex(int value);
 }
 
 /// The **`DOMStringList`** interface is a legacy type returned by some APIs and
@@ -216,6 +230,9 @@ extension type DOMStringList._(JSObject _) implements JSObject {
   /// The **`contains()`** method returns a boolean indicating whether the given
   /// string is in the list.
   external bool contains(String string);
+
+  /// The read-only **`length`** property indicates the number of strings in the
+  /// [DOMStringList].
   external int get length;
 }
 
@@ -461,254 +478,708 @@ extension type HTMLElement._(JSObject _) implements Element, JSObject {
   /// The **`HTMLElement.blur()`** method removes keyboard focus from the
   /// current element.
   external void blur();
+
+  /// The **`HTMLElement.offsetParent`** read-only property returns a
+  /// reference to the element which is the closest (nearest in the containment
+  /// hierarchy)
+  /// positioned ancestor element.
+  ///
+  /// A positioned ancestor is either:
+  ///
+  /// - an element with a non-static position, or
+  /// - `td`, `th`, `table` in case the element itself is static positioned.
+  ///
+  /// If there is no positioned ancestor element, the `body` is returned.
+  ///
+  /// > **Note:** `offsetParent` returns `null` in the following
+  /// > situations:
+  /// >
+  /// > - The element or any ancestor has the `display` property set to
+  /// > `none`.
+  /// > - The element has the `position` property set to `fixed`
+  /// > (Firefox returns `<body>`).
+  /// > - The element is `<body>` or `<html>`.
+  ///
+  /// `offsetParent` is useful because
+  /// [HTMLElement.offsetTop] and
+  /// [HTMLElement.offsetLeft] are relative to its padding edge.
   external Element? get offsetParent;
+
+  /// The **`HTMLElement.offsetTop`** read-only property returns the
+  /// distance from the outer border of the current element (including its
+  /// margin) to the top padding edge of the [HTMLelement.offsetParent], the
+  /// _closest positioned_
+  /// ancestor element.
   external int get offsetTop;
+
+  /// The **`HTMLElement.offsetLeft`** read-only property returns the number of
+  /// pixels that the _upper left corner_ of the current element is offset to
+  /// the left within the [HTMLElement.offsetParent] node.
+  ///
+  /// For block-level elements, `offsetTop`, `offsetLeft`, `offsetWidth`, and
+  /// `offsetHeight` describe the border box of an element relative to the
+  /// `offsetParent`.
+  ///
+  /// However, for inline-level elements (such as **span**) that can wrap from
+  /// one line to the next, `offsetTop` and `offsetLeft` describe the positions
+  /// of the _first_ border box (use [Element.getClientRects] to get its width
+  /// and height), while `offsetWidth` and `offsetHeight` describe the
+  /// dimensions of the _bounding_ border box (use
+  /// [Element.getBoundingClientRect] to get its position). Therefore, a box
+  /// with the left, top, width and height of `offsetLeft`, `offsetTop`,
+  /// `offsetWidth` and `offsetHeight` will not be a bounding box for a span
+  /// with wrapped text.
   external int get offsetLeft;
+
+  /// The **`HTMLElement.offsetWidth`** read-only property returns
+  /// the layout width of an element as an integer.
+  ///
+  /// Typically, `offsetWidth` is a measurement in pixels of the element's CSS
+  /// width, including any borders, padding, and vertical scrollbars (if
+  /// rendered). It does
+  /// not include the width of pseudo-elements such as `::before` or
+  /// `::after`.
+  ///
+  /// If the element is hidden (for example, by setting `style.display` on the
+  /// element or one of its ancestors to `"none"`), then `0` is
+  /// returned.
   external int get offsetWidth;
+
+  /// The **`HTMLElement.offsetHeight`** read-only property returns
+  /// the height of an element, including vertical padding and borders, as an
+  /// integer.
+  ///
+  /// Typically, `offsetHeight` is a measurement in pixels of the element's CSS
+  /// height, including any borders, padding, and horizontal scrollbars (if
+  /// rendered). It does
+  /// not include the height of pseudo-elements such as `::before` or
+  /// `::after`. For the document body object, the measurement includes total
+  /// linear content height instead of the element's CSS height. Floated
+  /// elements extending
+  /// below other linear content are ignored.
+  ///
+  /// If the element is hidden (for example, by setting `style.display` on the
+  /// element or one of its ancestors to `"none"`), then `0` is
+  /// returned.
+  ///
+  /// > **Note:** This property will round the value to an integer. If you need
+  /// > a fractional value, use
+  /// > [element.getBoundingClientRect].
   external int get offsetHeight;
-  external set title(String value);
+
+  /// The **`HTMLElement.title`** property
+  /// represents the title of the element: the text usually displayed in a
+  /// 'tooltip' popup
+  /// when the mouse is over the node.
   external String get title;
-  external set lang(String value);
+  external set title(String value);
+
+  /// The **`HTMLElement.lang`** property gets or sets the base
+  /// language of an element's attribute values and text content.
+  ///
+  /// The language code returned by this property is defined in `5646, "Tags for
+  /// Identifying Languages (also known as BCP 47)"`.
+  /// Common examples include "en" for English, "ja" for
+  /// Japanese, "es" for Spanish and so on. The default value of this attribute
+  /// is
+  /// `unknown`. Note that this attribute, though valid at the individual
+  /// element
+  /// level described here, is most often specified for the root element of the
+  /// document.
+  ///
+  /// This also only works with the `lang` attribute and not with
+  /// `xml:lang`.
   external String get lang;
-  external set translate(bool value);
+  external set lang(String value);
+
+  /// The **`translate`** property of the [HTMLElement] interface indicates
+  /// whether an element's attribute values and the values of its [Text] node
+  /// children are to be translated when the page is localized, or whether to
+  /// leave them unchanged.
+  ///
+  /// It reflects the value of the
+  /// [`translate`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/translate)
+  /// HTML global attribute.
   external bool get translate;
-  external set dir(String value);
+  external set translate(bool value);
+
+  /// The **`HTMLElement.dir`** property gets or sets the text
+  /// writing directionality of the content of the current element.
+  ///
+  /// The text writing directionality of an element is which direction that text
+  /// goes (for
+  /// support of different language systems). Arabic languages and Hebrew are
+  /// typical
+  /// languages using the RTL directionality.
+  ///
+  /// An image can have its `dir` property set to "`rtl`" in which case
+  /// the HTML attributes `title` and `alt` will be formatted and
+  /// defined as "`rtl`".
+  ///
+  /// When a table has its `dir` set to "`rtl`", the column order is
+  /// arranged from right to left.
+  ///
+  /// When an element has its dir set to "`auto`", the direction of the element
+  /// is
+  /// determined based on its first strong directionality character, or default
+  /// to the
+  /// directionality of its parent element.
+  ///
+  /// > **Note:** Browsers might allow users to change the directionality of
+  /// > `input`
+  /// > and `textarea`s in order to assist with authoring content. Chrome
+  /// > and Safari provide a directionality option in the contextual menu of
+  /// > input fields
+  /// > while pre-Chromium Edge uses the key combinations <kbd>Ctrl</kbd> +
+  /// > <kbd>Left Shift</kbd> and <kbd>Ctrl</kbd> + <kbd>Right Shift</kbd>.
+  /// > Firefox uses <kbd>Ctrl</kbd>/<kbd>Cmd</kbd> + <kbd>Shift</kbd> +
+  /// > <kbd>X</kbd> but does NOT update
+  /// > the **`dir`** attribute value.
   external String get dir;
-  external set hidden(JSAny? value);
+  external set dir(String value);
+
+  /// The [HTMLElement] property **`hidden`** reflects the value of the
+  /// element's
+  /// [`hidden`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/hidden)
+  /// attribute.
   external JSAny? get hidden;
-  external set inert(bool value);
+  external set hidden(JSAny? value);
+
+  /// The [HTMLElement] property **`inert`** reflects the value of the element's
+  /// [`inert`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/inert)
+  /// attribute. It is a boolean value that, when present, makes the browser
+  /// "ignore" user input events for the element, including focus events and
+  /// events from assistive technologies. The browser may also ignore page
+  /// search and text selection in the element. This can be useful when building
+  /// UIs such as modals where you would want to "trap" the focus inside the
+  /// modal when it's visible.
+  ///
+  /// > **Note:** Do not nest interactive elements or important content within
+  /// > elements with the `inert` attribute as inert content and their
+  /// > descendants are neither focusable nor perceivable by all users.
   external bool get inert;
-  external set accessKey(String value);
+  external set inert(bool value);
+
+  /// The **`HTMLElement.accessKey`** property sets the keystroke which a user
+  /// can press to jump to a given element.
+  ///
+  /// > **Note:** The `HTMLElement.accessKey` property is seldom used because of
+  /// > its multiple conflicts with already present key bindings in browsers. To
+  /// > work around this, browsers implement accesskey behavior if the keys are
+  /// > pressed with other "qualifying" keys (such as <kbd>Alt</kbd> +
+  /// > accesskey).
   external String get accessKey;
+  external set accessKey(String value);
+
+  /// The **`HTMLElement.accessKeyLabel`**
+  /// read-only property returns a string containing the element's
+  /// browser-assigned access key (if any); otherwise it returns an empty
+  /// string.
   external String get accessKeyLabel;
-  external set draggable(bool value);
+
+  /// The **`draggable`** property of the [HTMLElement] interface gets and sets
+  /// a `Boolean` primitive indicating if the element is draggable.
+  ///
+  /// It reflects the value of the
+  /// [`draggable`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/draggable)
+  /// HTML global attribute.
   external bool get draggable;
-  external set spellcheck(bool value);
+  external set draggable(bool value);
+
+  /// The **`spellcheck`** property of the [HTMLElement] interface represents a
+  /// boolean value that controls the
+  /// [spell-checking](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/spellcheck)
+  /// hint. It is available on all HTML elements, though it doesn't affect all
+  /// of them.
+  ///
+  /// It reflects the value of the
+  /// [`spellcheck`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/spellcheck)
+  /// HTML global attribute.
   external bool get spellcheck;
-  external set autocapitalize(String value);
+  external set spellcheck(bool value);
   external String get autocapitalize;
-  external set innerText(String value);
+  external set autocapitalize(String value);
+
+  /// The **`innerText`** property of the [HTMLElement] interface represents the
+  /// rendered text content of a node and its descendants.
+  ///
+  /// As a getter, it approximates the text the user would get if they
+  /// highlighted the contents of the element with the cursor and then copied it
+  /// to the clipboard.
+  /// As a setter this will replace the element's children with the given value,
+  /// converting any line breaks into `br` elements.
+  ///
+  /// > **Note:** `innerText` is easily confused with [Node.textContent], but
+  /// > there are important differences between the two.
+  /// > Basically, `innerText` is aware of the rendered appearance of text,
+  /// > while `textContent` is not.
   external String get innerText;
-  external set outerText(String value);
+  external set innerText(String value);
+
+  /// The **`outerText`** property of the [HTMLElement] interface returns the
+  /// same value as [HTMLElement.innerText].
+  /// When used as a setter it replaces the whole current node with the given
+  /// text (this differs from `innerText`, which replaces the content _inside_
+  /// the current node).
+  ///
+  /// See [HTMLElement.innerText] for more information and examples showing how
+  /// both properties are used as getters.
   external String get outerText;
-  external set popover(String? value);
+  external set outerText(String value);
+
+  /// The **`popover`** property of the [HTMLElement] interface gets and sets an
+  /// element's popover state via JavaScript (`"auto"` or `"manual"`), and can
+  /// be used for feature detection.
+  ///
+  /// It reflects the value of the
+  /// [`popover`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/popover)
+  /// global HTML attribute.
   external String? get popover;
+  external set popover(String? value);
   external StylePropertyMap get attributeStyleMap;
+
+  /// The read-only **`style`** property of the [HTMLElement] returns the
+  /// _inline_ style of an element in the form of a live [CSSStyleDeclaration]
+  /// object that contains a list of all styles properties for that element with
+  /// values assigned only for the attributes that are defined in the element's
+  /// inline
+  /// [`style`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/style)
+  /// attribute.
+  ///
+  /// Shorthand properties are expanded. If you set `style="border-top: 1px
+  /// solid black"`, the longhand properties (, , and ) are set instead.
+  ///
+  /// This property is read-only, meaning it is not possible to assign a
+  /// [CSSStyleDeclaration] object to it. Nevertheless, it is possible to set an
+  /// inline style by assigning a _string_ directly to the `style` property. In
+  /// this case the string is forwarded to [CSSStyleDeclaration.cssText]. Using
+  /// `style` in this manner will completely overwrite all inline styles on the
+  /// element.
+  ///
+  /// Therefore, to add specific styles to an element without altering other
+  /// style values, it is generally preferable to set individual properties on
+  /// the [CSSStyleDeclaration] object. For example, you can write
+  /// `element.style.backgroundColor = "red"`.
+  ///
+  /// A style declaration is reset by setting it to `null` or an empty string,
+  /// e.g., `elt.style.color = null`.
+  ///
+  /// > **Note:** CSS property names are converted to JavaScript identifier with
+  /// > these rules:
+  /// >
+  /// > - If the property is made of one word, it remains as it is: `height`
+  /// > stays as is (in lowercase). As `float` is a reserved keyword in
+  /// > JavaScript, this property name was historically converted to `cssFloat`.
+  /// > All modern browsers now support the direct use of `float` in JavaScript
+  /// > to access the `float` CSS property, but `cssFloat` is used in older
+  /// > browsers and is still supported as an alias in modern browsers.
+  /// > - If the property is made of several words, separated by dashes, the
+  /// > dashes are removed and it is converted to : `background-attachment`
+  /// > becomes `backgroundAttachment`.
+  /// >
+  /// > The `style` property has the same priority in the CSS cascade as an
+  /// > inline style declaration set via the `style` attribute.
   external CSSStyleDeclaration get style;
-  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationstart;
-  external set onanimationiteration(EventHandler value);
+  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationiteration;
-  external set onanimationend(EventHandler value);
+  external set onanimationiteration(EventHandler value);
   external EventHandler get onanimationend;
-  external set onanimationcancel(EventHandler value);
+  external set onanimationend(EventHandler value);
   external EventHandler get onanimationcancel;
-  external set ontransitionrun(EventHandler value);
+  external set onanimationcancel(EventHandler value);
   external EventHandler get ontransitionrun;
-  external set ontransitionstart(EventHandler value);
+  external set ontransitionrun(EventHandler value);
   external EventHandler get ontransitionstart;
-  external set ontransitionend(EventHandler value);
+  external set ontransitionstart(EventHandler value);
   external EventHandler get ontransitionend;
-  external set ontransitioncancel(EventHandler value);
+  external set ontransitionend(EventHandler value);
   external EventHandler get ontransitioncancel;
-  external set onabort(EventHandler value);
+  external set ontransitioncancel(EventHandler value);
   external EventHandler get onabort;
-  external set onauxclick(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onauxclick;
-  external set onbeforeinput(EventHandler value);
+  external set onauxclick(EventHandler value);
   external EventHandler get onbeforeinput;
-  external set onbeforematch(EventHandler value);
+  external set onbeforeinput(EventHandler value);
   external EventHandler get onbeforematch;
-  external set onbeforetoggle(EventHandler value);
+  external set onbeforematch(EventHandler value);
   external EventHandler get onbeforetoggle;
-  external set onblur(EventHandler value);
+  external set onbeforetoggle(EventHandler value);
   external EventHandler get onblur;
-  external set oncancel(EventHandler value);
+  external set onblur(EventHandler value);
   external EventHandler get oncancel;
-  external set oncanplay(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get oncanplay;
-  external set oncanplaythrough(EventHandler value);
+  external set oncanplay(EventHandler value);
   external EventHandler get oncanplaythrough;
-  external set onchange(EventHandler value);
+  external set oncanplaythrough(EventHandler value);
   external EventHandler get onchange;
-  external set onclick(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onclick;
-  external set onclose(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onclose;
-  external set oncontextlost(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get oncontextlost;
-  external set oncontextmenu(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextmenu;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextmenu(EventHandler value);
   external EventHandler get oncontextrestored;
-  external set oncopy(EventHandler value);
+  external set oncontextrestored(EventHandler value);
   external EventHandler get oncopy;
-  external set oncuechange(EventHandler value);
+  external set oncopy(EventHandler value);
   external EventHandler get oncuechange;
-  external set oncut(EventHandler value);
+  external set oncuechange(EventHandler value);
   external EventHandler get oncut;
-  external set ondblclick(EventHandler value);
+  external set oncut(EventHandler value);
   external EventHandler get ondblclick;
-  external set ondrag(EventHandler value);
+  external set ondblclick(EventHandler value);
   external EventHandler get ondrag;
-  external set ondragend(EventHandler value);
+  external set ondrag(EventHandler value);
   external EventHandler get ondragend;
-  external set ondragenter(EventHandler value);
+  external set ondragend(EventHandler value);
   external EventHandler get ondragenter;
-  external set ondragleave(EventHandler value);
+  external set ondragenter(EventHandler value);
   external EventHandler get ondragleave;
-  external set ondragover(EventHandler value);
+  external set ondragleave(EventHandler value);
   external EventHandler get ondragover;
-  external set ondragstart(EventHandler value);
+  external set ondragover(EventHandler value);
   external EventHandler get ondragstart;
-  external set ondrop(EventHandler value);
+  external set ondragstart(EventHandler value);
   external EventHandler get ondrop;
-  external set ondurationchange(EventHandler value);
+  external set ondrop(EventHandler value);
   external EventHandler get ondurationchange;
-  external set onemptied(EventHandler value);
+  external set ondurationchange(EventHandler value);
   external EventHandler get onemptied;
-  external set onended(EventHandler value);
+  external set onemptied(EventHandler value);
   external EventHandler get onended;
-  external set onerror(OnErrorEventHandler value);
+  external set onended(EventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onfocus(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onfocus;
-  external set onformdata(EventHandler value);
+  external set onfocus(EventHandler value);
   external EventHandler get onformdata;
-  external set oninput(EventHandler value);
+  external set onformdata(EventHandler value);
   external EventHandler get oninput;
-  external set oninvalid(EventHandler value);
+  external set oninput(EventHandler value);
   external EventHandler get oninvalid;
-  external set onkeydown(EventHandler value);
+  external set oninvalid(EventHandler value);
   external EventHandler get onkeydown;
-  external set onkeypress(EventHandler value);
+  external set onkeydown(EventHandler value);
   external EventHandler get onkeypress;
-  external set onkeyup(EventHandler value);
+  external set onkeypress(EventHandler value);
   external EventHandler get onkeyup;
-  external set onload(EventHandler value);
+  external set onkeyup(EventHandler value);
   external EventHandler get onload;
-  external set onloadeddata(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onloadeddata;
-  external set onloadedmetadata(EventHandler value);
+  external set onloadeddata(EventHandler value);
   external EventHandler get onloadedmetadata;
-  external set onloadstart(EventHandler value);
+  external set onloadedmetadata(EventHandler value);
   external EventHandler get onloadstart;
-  external set onmousedown(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onmousedown;
-  external set onmouseenter(EventHandler value);
+  external set onmousedown(EventHandler value);
   external EventHandler get onmouseenter;
-  external set onmouseleave(EventHandler value);
+  external set onmouseenter(EventHandler value);
   external EventHandler get onmouseleave;
-  external set onmousemove(EventHandler value);
+  external set onmouseleave(EventHandler value);
   external EventHandler get onmousemove;
-  external set onmouseout(EventHandler value);
+  external set onmousemove(EventHandler value);
   external EventHandler get onmouseout;
-  external set onmouseover(EventHandler value);
+  external set onmouseout(EventHandler value);
   external EventHandler get onmouseover;
-  external set onmouseup(EventHandler value);
+  external set onmouseover(EventHandler value);
   external EventHandler get onmouseup;
-  external set onpaste(EventHandler value);
+  external set onmouseup(EventHandler value);
   external EventHandler get onpaste;
-  external set onpause(EventHandler value);
+  external set onpaste(EventHandler value);
   external EventHandler get onpause;
-  external set onplay(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onplay;
-  external set onplaying(EventHandler value);
+  external set onplay(EventHandler value);
   external EventHandler get onplaying;
-  external set onprogress(EventHandler value);
+  external set onplaying(EventHandler value);
   external EventHandler get onprogress;
-  external set onratechange(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onratechange;
-  external set onreset(EventHandler value);
+  external set onratechange(EventHandler value);
   external EventHandler get onreset;
-  external set onresize(EventHandler value);
+  external set onreset(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
-  external set onsecuritypolicyviolation(EventHandler value);
+  external set onscrollend(EventHandler value);
   external EventHandler get onsecuritypolicyviolation;
-  external set onseeked(EventHandler value);
+  external set onsecuritypolicyviolation(EventHandler value);
   external EventHandler get onseeked;
-  external set onseeking(EventHandler value);
+  external set onseeked(EventHandler value);
   external EventHandler get onseeking;
-  external set onselect(EventHandler value);
+  external set onseeking(EventHandler value);
   external EventHandler get onselect;
-  external set onslotchange(EventHandler value);
+  external set onselect(EventHandler value);
   external EventHandler get onslotchange;
-  external set onstalled(EventHandler value);
+  external set onslotchange(EventHandler value);
   external EventHandler get onstalled;
-  external set onsubmit(EventHandler value);
+  external set onstalled(EventHandler value);
   external EventHandler get onsubmit;
-  external set onsuspend(EventHandler value);
+  external set onsubmit(EventHandler value);
   external EventHandler get onsuspend;
-  external set ontimeupdate(EventHandler value);
+  external set onsuspend(EventHandler value);
   external EventHandler get ontimeupdate;
-  external set ontoggle(EventHandler value);
+  external set ontimeupdate(EventHandler value);
   external EventHandler get ontoggle;
-  external set onvolumechange(EventHandler value);
+  external set ontoggle(EventHandler value);
   external EventHandler get onvolumechange;
-  external set onwaiting(EventHandler value);
+  external set onvolumechange(EventHandler value);
   external EventHandler get onwaiting;
-  external set onwebkitanimationend(EventHandler value);
+  external set onwaiting(EventHandler value);
   external EventHandler get onwebkitanimationend;
-  external set onwebkitanimationiteration(EventHandler value);
+  external set onwebkitanimationend(EventHandler value);
   external EventHandler get onwebkitanimationiteration;
-  external set onwebkitanimationstart(EventHandler value);
+  external set onwebkitanimationiteration(EventHandler value);
   external EventHandler get onwebkitanimationstart;
-  external set onwebkittransitionend(EventHandler value);
+  external set onwebkitanimationstart(EventHandler value);
   external EventHandler get onwebkittransitionend;
-  external set onwheel(EventHandler value);
+  external set onwebkittransitionend(EventHandler value);
   external EventHandler get onwheel;
-  external set onpointerover(EventHandler value);
+  external set onwheel(EventHandler value);
   external EventHandler get onpointerover;
-  external set onpointerenter(EventHandler value);
+  external set onpointerover(EventHandler value);
   external EventHandler get onpointerenter;
-  external set onpointerdown(EventHandler value);
+  external set onpointerenter(EventHandler value);
   external EventHandler get onpointerdown;
-  external set onpointermove(EventHandler value);
+  external set onpointerdown(EventHandler value);
   external EventHandler get onpointermove;
-  external set onpointerrawupdate(EventHandler value);
+  external set onpointermove(EventHandler value);
   external EventHandler get onpointerrawupdate;
-  external set onpointerup(EventHandler value);
+  external set onpointerrawupdate(EventHandler value);
   external EventHandler get onpointerup;
-  external set onpointercancel(EventHandler value);
+  external set onpointerup(EventHandler value);
   external EventHandler get onpointercancel;
-  external set onpointerout(EventHandler value);
+  external set onpointercancel(EventHandler value);
   external EventHandler get onpointerout;
-  external set onpointerleave(EventHandler value);
+  external set onpointerout(EventHandler value);
   external EventHandler get onpointerleave;
-  external set ongotpointercapture(EventHandler value);
+  external set onpointerleave(EventHandler value);
   external EventHandler get ongotpointercapture;
-  external set onlostpointercapture(EventHandler value);
+  external set ongotpointercapture(EventHandler value);
   external EventHandler get onlostpointercapture;
-  external set onselectstart(EventHandler value);
+  external set onlostpointercapture(EventHandler value);
   external EventHandler get onselectstart;
-  external set onselectionchange(EventHandler value);
+  external set onselectstart(EventHandler value);
   external EventHandler get onselectionchange;
-  external set ontouchstart(EventHandler value);
+  external set onselectionchange(EventHandler value);
   external EventHandler get ontouchstart;
-  external set ontouchend(EventHandler value);
+  external set ontouchstart(EventHandler value);
   external EventHandler get ontouchend;
-  external set ontouchmove(EventHandler value);
+  external set ontouchend(EventHandler value);
   external EventHandler get ontouchmove;
-  external set ontouchcancel(EventHandler value);
+  external set ontouchmove(EventHandler value);
   external EventHandler get ontouchcancel;
-  external set contentEditable(String value);
+  external set ontouchcancel(EventHandler value);
+
+  /// The **`contentEditable`** property of
+  /// the [HTMLElement] interface specifies whether or not the element is
+  /// editable.
+  ///
+  /// This enumerated attribute can have the following values:
+  ///
+  /// - '`true`' indicates that the element is `contenteditable`.
+  /// - '`false`' indicates that the element cannot be edited.
+  /// - '`plaintext-only`' indicates that the element's raw text is editable,
+  ///   but rich text formatting is disabled.
+  ///
+  /// You can use the [HTMLElement.isContentEditable] property to test the
+  /// computed boolean value of this property.
+  ///
+  /// If the attribute is missing or its value is invalid, its value is
+  /// inherited from its parent element: so the element
+  /// is editable (or not) based on the parent element.
   external String get contentEditable;
-  external set enterKeyHint(String value);
+  external set contentEditable(String value);
+
+  /// The **`enterKeyHint`** property is an enumerated property defining
+  /// what action label (or icon) to present for the enter key on virtual
+  /// keyboards.
+  /// It reflects the
+  /// [`enterkeyhint`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/enterkeyhint)
+  /// HTML global attribute and is an enumerated property, only accepting the
+  /// following values
+  /// as a string:
+  ///
+  /// - `'enter'` typically indicating inserting a new line.
+  /// - `'done'` typically meaning there is nothing more to input and the input
+  ///   method editor (IME) will be closed.
+  /// - `'go'` typically meaning to take the user to the target of the text they
+  ///   typed.
+  /// - `'next'` typically taking the user to the next field that will accept
+  ///   text.
+  /// - `'previous'` typically taking the user to the previous field that will
+  ///   accept text.
+  /// - `'search'` typically taking the user to the results of searching for the
+  ///   text they have typed.
+  /// - `'send'` typically delivering the text to its target.
+  ///
+  /// If no `enterKeyHint` value has been specified or if it was set to a
+  /// different value than the allowed ones, it will return an empty string.
   external String get enterKeyHint;
+  external set enterKeyHint(String value);
+
+  /// The **`HTMLElement.isContentEditable`** read-only property
+  /// returns a boolean value that is `true` if the contents of the element
+  /// are editable; otherwise it returns `false`.
   external bool get isContentEditable;
-  external set inputMode(String value);
+
+  /// The [HTMLElement] property **`inputMode`** reflects the value of the
+  /// element's
+  /// [`inputmode`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/inputmode)
+  /// attribute.
+  ///
+  /// It provides a hint about the type of data that might be entered by the
+  /// user while editing the element or its contents. This allows the browser to
+  /// display an appropriate virtual keyboard.
+  ///
+  /// It is used primarily on `input` elements, but is usable on any element in
+  /// [`contenteditable`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes#contenteditable)
+  /// mode.
   external String get inputMode;
+  external set inputMode(String value);
+
+  /// The **`dataset`** read-only property
+  /// of the [HTMLElement] interface provides read/write access to
+  /// [custom data attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/data-*)
+  /// (`data-*`) on elements. It exposes a map of strings
+  /// ([DOMStringMap]) with an entry for each `data-*` attribute.
+  ///
+  /// > **Note:** The `dataset` property itself can be read, but not directly
+  /// > written.
+  /// > Instead, all writes must be to the individual properties within the
+  /// > `dataset`, which in turn represent the data attributes.
+  ///
+  /// An HTML `data-*` attribute and its corresponding DOM
+  /// `dataset.property` modify their shared name according to where
+  /// they are read or written:
+  ///
+  /// - In HTML
+  ///   - : The attribute name begins with `data-`. It can contain only letters,
+  /// numbers, dashes (`-`), periods (`.`), colons (`:`),
+  /// and underscores (`_`). Any  capital letters (`A` to
+  /// `Z`) are converted to lowercase.
+  /// - In JavaScript
+  ///   - : The property name of a custom data attribute is the same as the HTML attribute
+  /// without the `data-` prefix, and removes single dashes (`-`) for
+  /// when to capitalize the property's "" name.
+  ///
+  /// In addition to the information below, you'll find a how-to guide for using
+  /// HTML data
+  /// attributes in our article
+  /// [_Using data attributes_](https://developer.mozilla.org/en-US/docs/Learn/HTML/Howto/Use_data_attributes).
+  ///
+  /// ### Name conversion
+  ///
+  /// - `dash-style` to `camelCase` conversion
+  ///
+  ///   - : A custom data attribute name is transformed to a key for the
+  /// [DOMStringMap] entry by the following:
+  ///
+  /// 1. Lowercase all ASCII capital letters (`A` to
+  /// `Z`);
+  /// 2. Remove the prefix `data-` (including the dash);
+  /// 3. For any dash (`U+002D`) followed by an ASCII lowercase letter
+  /// `a` to `z`, remove the dash and uppercase the letter;
+  /// 4. Other characters (including other dashes) are left unchanged.
+  ///
+  /// - `camelCase` to `dash-style` conversion
+  ///
+  ///   - : The opposite transformation, which maps a key to an attribute name, uses the
+  /// following:
+  ///
+  /// 1. **Restriction:** Before transformation, a dash _must not_ be
+  /// immediately followed by an ASCII lowercase letter `a` to
+  /// `z`;
+  /// 2. Add the `data-` prefix;
+  /// 3. Add a dash before any ASCII uppercase letter `A` to `Z`,
+  /// then lowercase the letter;
+  /// 4. Other characters are left unchanged.
+  ///
+  /// For example, a `data-abc-def` attribute corresponds to
+  /// `dataset.abcDef`.
+  ///
+  /// ### Accessing values
+  ///
+  /// - Attributes can be set and read by the camelCase name/key as an object
+  ///   property of
+  /// the dataset: `element.dataset.keyname`.
+  /// - Attributes can also be set and read using bracket syntax:
+  /// `element.dataset['keyname']`.
+  /// - The
+  ///   [`in` operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/in)
+  ///   can check if a given attribute exists:
+  /// `'keyname' in element.dataset`.
+  ///
+  /// ### Setting values
+  ///
+  /// - When the attribute is set, its value is always converted to a string.
+  /// For example: `element.dataset.example = null` is
+  /// converted into `data-example="null"`.
+  ///
+  /// - To remove an attribute, you can use the
+  ///   [`delete` operator](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete):
+  ///   `delete element.dataset.keyname`.
   external DOMStringMap get dataset;
-  external set nonce(String value);
+
+  /// The **`nonce`** property of the [HTMLElement] interface returns the
+  /// cryptographic number used once that is used by
+  /// [Content Security Policy](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP)
+  /// to determine whether a given fetch will be allowed to proceed.
+  ///
+  /// In later implementations, elements only expose their `nonce` attribute to
+  /// scripts (and not to side-channels like CSS attribute selectors).
   external String get nonce;
-  external set autofocus(bool value);
+  external set nonce(String value);
+
+  /// The **`autofocus`** property of the [HTMLElement] interface represents a
+  /// boolean value reflecting the
+  /// [`autofocus`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/select#autofocus)
+  /// HTML global attribute, which indicates whether the control should be
+  /// focused when the page loads, or when dialog or popover become shown if
+  /// specified in an element inside `dialog` elements or elements whose popover
+  /// attribute is set.
+  ///
+  /// Only one form-associated element inside a document, or a `dialog` element,
+  /// or an element whose `popover` attribute is set, can have this attribute
+  /// specified. If there are several, the first element with the attribute set
+  /// inserted, usually the first such element on the page, get the initial
+  /// focus.
+  ///
+  /// > **Note:** Setting this property doesn't set the focus to the associated
+  /// > element: it merely tells the browser to focus to it when _the element is
+  /// > inserted_ in the document. Setting it after the insertion, that is most
+  /// > of the time after the document load, has no visible effect.
   external bool get autofocus;
-  external set tabIndex(int value);
+  external set autofocus(bool value);
+
+  /// The **`tabIndex`** property of the
+  /// [HTMLElement] interface represents the tab order of the current element.
+  ///
+  /// Tab order is as follows:
+  ///
+  /// 1. Elements with a positive `tabIndex`. Elements that have identical
+  /// `tabIndex` values should be navigated in the order they appear. Navigation
+  /// proceeds from the lowest `tabIndex` to the highest `tabIndex`.
+  /// 2. Elements that do not support the `tabIndex` attribute or support it and
+  /// assign `tabIndex` to `0`, in the order they appear.
+  ///
+  /// Elements that are disabled do not participate in the tabbing order.
+  ///
+  /// Values don't need to be sequential, nor must they begin with any
+  /// particular value. They
+  /// may even be negative, though each browser trims very large values.
   external int get tabIndex;
+  external set tabIndex(int value);
 }
 
 /// The **`HTMLUnknownElement`** interface represents an invalid HTML element
@@ -770,8 +1241,15 @@ extension type HTMLHtmlElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLHtmlElement] using the tag 'html'.
   HTMLHtmlElement() : _ = document.createElement('html');
 
-  external set version(String value);
+  /// > **Note:** This property has been declared as deprecated by the W3C
+  /// > technical recommendation for HTML 4.01 in favor of use of the DTD for
+  /// > obtaining version information for a document.
+  ///
+  /// Returns version information about the document type definition (DTD) of a
+  /// document. While this property is recognized by Mozilla, the return value
+  /// for this property is always an empty string.
   external String get version;
+  external set version(String value);
 }
 
 /// The **`HTMLHeadElement`** interface contains the descriptive information, or
@@ -799,8 +1277,11 @@ extension type HTMLTitleElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLTitleElement] using the tag 'title'.
   HTMLTitleElement() : _ = document.createElement('title');
 
-  external set text(String value);
+  /// The **`text`** property of the [HTMLTitleElement] interface represents the
+  /// text of the document's title. Only the text part is included; tags within
+  /// the element and their content are stripped and ignored.
   external String get text;
+  external set text(String value);
 }
 
 /// The **`HTMLBaseElement`** interface contains the base URI for a document.
@@ -815,10 +1296,18 @@ extension type HTMLBaseElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLBaseElement] using the tag 'base'.
   HTMLBaseElement() : _ = document.createElement('base');
 
-  external set href(String value);
   external String get href;
-  external set target(String value);
+  external set href(String value);
+
+  /// The `target` property of the [HTMLBaseElement] interface is a string that
+  /// represents the default target tab to show the resulting output for
+  /// hyperlinks and form elements.
+  ///
+  /// It reflects the
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base#target)
+  /// attribute of the `base` element.
   external String get target;
+  external set target(String value);
 }
 
 /// The **`HTMLLinkElement`** interface represents reference information for
@@ -840,41 +1329,114 @@ extension type HTMLLinkElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLLinkElement] using the tag 'link'.
   HTMLLinkElement() : _ = document.createElement('link');
 
-  external set href(String value);
   external String get href;
-  external set crossOrigin(String? value);
+  external set href(String value);
+
+  /// The **`crossOrigin`** property of the [HTMLLinkElement] interface
+  /// specifies the Cross-Origin Resource Sharing () setting to use when
+  /// retrieving the resource.
   external String? get crossOrigin;
-  external set rel(String value);
+  external set crossOrigin(String? value);
+
+  /// The **`HTMLLinkElement.rel`** property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a string containing a space-separated list of link types
+  /// indicating the relationship between the resource represented by the `link`
+  /// element and the current document.
+  ///
+  /// The most common use of this attribute is to specify a link to an external
+  /// style sheet:
+  /// the property is set to `stylesheet`, and the
+  /// [`href`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#href)
+  /// attribute is set to the URL of an external style sheet to format the page.
   external String get rel;
-  external set as(String value);
+  external set rel(String value);
+
+  /// The **`as`** property of the [HTMLLinkElement] interface returns a string
+  /// representing the type of content to be preloaded by a link element.
+  ///
+  /// The `as` property must have a value for link elements when
+  /// [`rel="preload"`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel/preload),
+  /// or the resource will not be fetched.
+  /// It may also be applied to link elements where
+  /// [`rel="modulepreload"`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel/preload),
+  /// but if omitted, will default to `script`.
+  /// The property should not be set for other types of link elements, such as
+  /// `rel="prefetch"`.
+  ///
+  /// This property reflects the value of the
+  /// [`as` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#as)
+  /// of the
+  /// [`<link>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link)
+  /// HTML element.
   external String get as;
+  external set as(String value);
+
+  /// The **`HTMLLinkElement.relList`** read-only property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a live [DOMTokenList] containing the set of link types
+  /// indicating the relationship between the resource represented by the `link`
+  /// element and the current document.
+  ///
+  /// The property itself is read-only, meaning you can not substitute the
+  /// [DOMTokenList] by another one, but the content of the returned list can be
+  /// changed.
   external DOMTokenList get relList;
-  external set media(String value);
   external String get media;
-  external set integrity(String value);
+  external set media(String value);
   external String get integrity;
-  external set hreflang(String value);
+  external set integrity(String value);
+
+  /// The **`hreflang`** property of the [HTMLLinkElement] is used to indicate
+  /// the language and the geographical targeting of a page. This hint can be
+  /// used by browsers to select the more appropriate page or to improve .
+  ///
+  /// It reflects the `hreflang` attribute of the `link` element and is the
+  /// empty string (`""`) if there is no `hreflang` attribute.
   external String get hreflang;
-  external set type(String value);
+  external set hreflang(String value);
   external String get type;
+  external set type(String value);
   external DOMTokenList get sizes;
-  external set imageSrcset(String value);
   external String get imageSrcset;
-  external set imageSizes(String value);
+  external set imageSrcset(String value);
   external String get imageSizes;
-  external set referrerPolicy(String value);
+  external set imageSizes(String value);
+
+  /// The
+  /// **`HTMLLinkElement.referrerPolicy`**
+  /// property reflects the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/link#referrerpolicy)
+  /// attribute of the
+  /// `link` element defining which referrer is sent when fetching the
+  /// resource.
+  ///
+  /// See the HTTP  header for details.
   external String get referrerPolicy;
+  external set referrerPolicy(String value);
   external DOMTokenList get blocking;
-  external set disabled(bool value);
   external bool get disabled;
-  external set fetchPriority(String value);
+  external set disabled(bool value);
+
+  /// The **`fetchPriority`** property of the
+  /// [HTMLLinkElement] interface represents a hint given to the browser
+  /// on how it should prioritize the preload of the given resource relative to
+  /// other
+  /// resources of the same type.
   external String get fetchPriority;
-  external set charset(String value);
+  external set fetchPriority(String value);
   external String get charset;
-  external set rev(String value);
+  external set charset(String value);
   external String get rev;
-  external set target(String value);
+  external set rev(String value);
   external String get target;
+  external set target(String value);
+
+  /// The read-only **`sheet`** property of the [HTMLLinkElement] interface
+  /// contains the stylesheet associated with that element.
+  ///
+  /// A stylesheet is associated to an `HTMLLinkElement` if `rel="stylesheet"`
+  /// is used with `<link>`.
   external CSSStyleSheet? get sheet;
 }
 
@@ -893,16 +1455,57 @@ extension type HTMLMetaElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLMetaElement] using the tag 'meta'.
   HTMLMetaElement() : _ = document.createElement('meta');
 
-  external set name(String value);
+  /// The **`HTMLMetaElement.name`** property is used in combination with
+  /// [HTMLMetaElement.content] to define the name-value pairs for the metadata
+  /// of a document.
+  /// The `name` attribute defines the metadata name and the `content` attribute
+  /// defines the value.
   external String get name;
-  external set httpEquiv(String value);
+  external set name(String value);
+
+  /// The **`HTMLMetaElement.httpEquiv`** property gets or sets the pragma
+  /// directive or an HTTP response header name for the
+  /// [HTMLMetaElement.content] attribute.
+  /// For more details on the possible values, see the
+  /// [http-equiv](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta#http-equiv)
+  /// attribute.
   external String get httpEquiv;
-  external set content(String value);
+  external set httpEquiv(String value);
+
+  /// The **`HTMLMetaElement.content`** property gets or sets the `content`
+  /// attribute of pragma directives and named `meta` data in conjunction with
+  /// [HTMLMetaElement.name] or [HTMLMetaElement.httpEquiv].
+  /// For more information, see the
+  /// [content](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/meta#content)
+  /// attribute.
   external String get content;
-  external set media(String value);
+  external set content(String value);
+
+  /// The **`HTMLMetaElement.media`** property enables specifying the media for
+  /// `theme-color` metadata.
+  ///
+  /// The `theme-color` property enables setting the color of the browser's
+  /// toolbar or UI in browsers and operating systems that support this
+  /// property.
+  /// The `media` property enables setting different theme colors for different
+  /// `media` values.
   external String get media;
-  external set scheme(String value);
+  external set media(String value);
+
+  /// The **`HTMLMetaElement.scheme`** property defines the scheme of the value
+  /// in the [HTMLMetaElement.content] attribute.
+  /// The `scheme` property was created to enable providing additional
+  /// information to be used to interpret the value of the `content` property.
+  /// The `scheme` property takes as its value a scheme format (i.e.
+  /// `YYYY-MM-DD`) or scheme format name (i.e. `ISBN`), or a URI providing more
+  /// information regarding the scheme format. The scheme defines the format of
+  /// the value of the `content` attribute.
+  /// The `scheme` content is interpreted as an extension of the element's
+  /// [HTMLMetaElement.name] if a browser or user agent recognizes the scheme.
+  ///
+  /// This property is deprecated and should not be used on new web pages.
   external String get scheme;
+  external set scheme(String value);
 }
 
 /// The **`HTMLStyleElement`** interface represents a `style` element. It
@@ -922,13 +1525,35 @@ extension type HTMLStyleElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLStyleElement] using the tag 'style'.
   HTMLStyleElement() : _ = document.createElement('style');
 
-  external set disabled(bool value);
+  /// The **`HTMLStyleElement.disabled`** property can be used to get and set
+  /// whether the stylesheet is disabled (`true`) or not (`false`).
+  ///
+  /// Note that there is no corresponding `disabled` attribute on the [HTML
+  /// `<style>`
+  /// element](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/style).
   external bool get disabled;
-  external set media(String value);
+  external set disabled(bool value);
+
+  /// The **`HTMLStyleElement.media`** property specifies the
+  /// intended destination medium for style information.
   external String get media;
+  external set media(String value);
   external DOMTokenList get blocking;
-  external set type(String value);
+
+  /// The **`HTMLStyleElement.type`** property returns the type of the current
+  /// style.
+  /// The value mirrors the [HTML `<style>` element's `type`
+  /// attribute](/en-US/docs/Web/HTML/Element/style#type).
+  ///
+  /// Authors should not use this property or rely on the value.
   external String get type;
+  external set type(String value);
+
+  /// The read-only **`sheet`** property of the [HTMLStyleElement] interface
+  /// contains the stylesheet associated with that element.
+  ///
+  /// An [StyleSheet] is always associated with a [HTMLStyleElement], unless its
+  /// `type` attribute is not `text/css`.
   external CSSStyleSheet? get sheet;
 }
 
@@ -944,56 +1569,56 @@ extension type HTMLBodyElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLBodyElement] using the tag 'body'.
   HTMLBodyElement() : _ = document.createElement('body');
 
-  external set text(String value);
   external String get text;
-  external set link(String value);
+  external set text(String value);
   external String get link;
-  external set vLink(String value);
+  external set link(String value);
   external String get vLink;
-  external set aLink(String value);
+  external set vLink(String value);
   external String get aLink;
-  external set bgColor(String value);
+  external set aLink(String value);
   external String get bgColor;
-  external set background(String value);
+  external set bgColor(String value);
   external String get background;
-  external set ongamepadconnected(EventHandler value);
+  external set background(String value);
   external EventHandler get ongamepadconnected;
-  external set ongamepaddisconnected(EventHandler value);
+  external set ongamepadconnected(EventHandler value);
   external EventHandler get ongamepaddisconnected;
-  external set onafterprint(EventHandler value);
+  external set ongamepaddisconnected(EventHandler value);
   external EventHandler get onafterprint;
-  external set onbeforeprint(EventHandler value);
+  external set onafterprint(EventHandler value);
   external EventHandler get onbeforeprint;
-  external set onbeforeunload(OnBeforeUnloadEventHandler value);
+  external set onbeforeprint(EventHandler value);
   external OnBeforeUnloadEventHandler get onbeforeunload;
-  external set onhashchange(EventHandler value);
+  external set onbeforeunload(OnBeforeUnloadEventHandler value);
   external EventHandler get onhashchange;
-  external set onlanguagechange(EventHandler value);
+  external set onhashchange(EventHandler value);
   external EventHandler get onlanguagechange;
-  external set onmessage(EventHandler value);
+  external set onlanguagechange(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onoffline(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onoffline;
-  external set ononline(EventHandler value);
+  external set onoffline(EventHandler value);
   external EventHandler get ononline;
-  external set onpagehide(EventHandler value);
+  external set ononline(EventHandler value);
   external EventHandler get onpagehide;
-  external set onpagereveal(EventHandler value);
+  external set onpagehide(EventHandler value);
   external EventHandler get onpagereveal;
-  external set onpageshow(EventHandler value);
+  external set onpagereveal(EventHandler value);
   external EventHandler get onpageshow;
-  external set onpopstate(EventHandler value);
+  external set onpageshow(EventHandler value);
   external EventHandler get onpopstate;
-  external set onrejectionhandled(EventHandler value);
+  external set onpopstate(EventHandler value);
   external EventHandler get onrejectionhandled;
-  external set onstorage(EventHandler value);
+  external set onrejectionhandled(EventHandler value);
   external EventHandler get onstorage;
-  external set onunhandledrejection(EventHandler value);
+  external set onstorage(EventHandler value);
   external EventHandler get onunhandledrejection;
-  external set onunload(EventHandler value);
+  external set onunhandledrejection(EventHandler value);
   external EventHandler get onunload;
+  external set onunload(EventHandler value);
 }
 
 /// The **`HTMLHeadingElement`** interface represents the different heading
@@ -1025,8 +1650,8 @@ extension type HTMLHeadingElement._(JSObject _)
   /// Creates an [HTMLHeadingElement] using the tag 'h6'.
   HTMLHeadingElement.h6() : _ = document.createElement('h6');
 
-  external set align(String value);
   external String get align;
+  external set align(String value);
 }
 
 /// The **`HTMLParagraphElement`** interface provides special properties (beyond
@@ -1042,8 +1667,8 @@ extension type HTMLParagraphElement._(JSObject _)
   /// Creates an [HTMLParagraphElement] using the tag 'p'.
   HTMLParagraphElement() : _ = document.createElement('p');
 
-  external set align(String value);
   external String get align;
+  external set align(String value);
 }
 
 /// The **`HTMLHRElement`** interface provides special properties (beyond those
@@ -1058,16 +1683,16 @@ extension type HTMLHRElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLHRElement] using the tag 'hr'.
   HTMLHRElement() : _ = document.createElement('hr');
 
-  external set align(String value);
   external String get align;
-  external set color(String value);
+  external set align(String value);
   external String get color;
-  external set noShade(bool value);
+  external set color(String value);
   external bool get noShade;
-  external set size(String value);
+  external set noShade(bool value);
   external String get size;
-  external set width(String value);
+  external set size(String value);
   external String get width;
+  external set width(String value);
 }
 
 /// The **`HTMLPreElement`** interface exposes specific properties and methods
@@ -1088,8 +1713,8 @@ extension type HTMLPreElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLPreElement] using the tag 'xmp'.
   HTMLPreElement.xmp() : _ = document.createElement('xmp');
 
-  external set width(int value);
   external int get width;
+  external set width(int value);
 }
 
 /// The **`HTMLQuoteElement`** interface provides special properties and methods
@@ -1108,8 +1733,8 @@ extension type HTMLQuoteElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLQuoteElement] using the tag 'q'.
   HTMLQuoteElement.q() : _ = document.createElement('q');
 
-  external set cite(String value);
   external String get cite;
+  external set cite(String value);
 }
 
 /// The **`HTMLOListElement`** interface provides special properties (beyond
@@ -1124,14 +1749,41 @@ extension type HTMLOListElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLOListElement] using the tag 'ol'.
   HTMLOListElement() : _ = document.createElement('ol');
 
-  external set reversed(bool value);
+  /// The **`reversed`** property of the [HTMLOListElement] interface indicates
+  /// order of a list.
+  ///
+  /// It reflects the
+  /// [`reversed`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ol#reversed)
+  /// attribute of the `ol` element.
   external bool get reversed;
-  external set start(int value);
+  external set reversed(bool value);
+
+  /// The **`start`** property of the [HTMLOListElement] interface indicates
+  /// starting value of the ordered list, with default value of 1.
+  ///
+  /// It reflects the
+  /// [`start`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ol#start)
+  /// attribute of the `ol` element.
+  ///
+  /// > **Note:** The `start` property value is independent of the
+  /// > [HTMLOListElement.type] property; it is always numeric, even when type
+  /// > is letters or Roman numerals.
   external int get start;
-  external set type(String value);
+  external set start(int value);
+
+  /// The **`type`** property of the [HTMLOListElement] interface indicates the
+  /// kind of marker to be used to display ordered list.
+  ///
+  /// It reflects the
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ol#type)
+  /// attribute of the `ol` element.
+  ///
+  /// > **Note:** The `type` can be defined in CSS with the  property. The
+  /// > `list-style-type` property provides many more values.
   external String get type;
-  external set compact(bool value);
+  external set type(String value);
   external bool get compact;
+  external set compact(bool value);
 }
 
 /// The **`HTMLUListElement`** interface provides special properties (beyond
@@ -1146,10 +1798,10 @@ extension type HTMLUListElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLUListElement] using the tag 'ul'.
   HTMLUListElement() : _ = document.createElement('ul');
 
-  external set compact(bool value);
   external bool get compact;
-  external set type(String value);
+  external set compact(bool value);
   external String get type;
+  external set type(String value);
 }
 
 /// The **`HTMLMenuElement`** interface provides additional properties (beyond
@@ -1165,8 +1817,8 @@ extension type HTMLMenuElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLMenuElement] using the tag 'menu'.
   HTMLMenuElement() : _ = document.createElement('menu');
 
-  external set compact(bool value);
   external bool get compact;
+  external set compact(bool value);
 }
 
 /// The **`HTMLLIElement`** interface exposes specific properties and methods
@@ -1181,10 +1833,10 @@ extension type HTMLLIElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLLIElement] using the tag 'li'.
   HTMLLIElement() : _ = document.createElement('li');
 
-  external set value(int value);
   external int get value;
-  external set type(String value);
+  external set value(int value);
   external String get type;
+  external set type(String value);
 }
 
 /// The **`HTMLDListElement`** interface provides special properties (beyond
@@ -1199,8 +1851,8 @@ extension type HTMLDListElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLDListElement] using the tag 'dl'.
   HTMLDListElement() : _ = document.createElement('dl');
 
-  external set compact(bool value);
   external bool get compact;
+  external set compact(bool value);
 }
 
 /// The **`HTMLDivElement`** interface provides special properties (beyond the
@@ -1215,8 +1867,8 @@ extension type HTMLDivElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLDivElement] using the tag 'div'.
   HTMLDivElement() : _ = document.createElement('div');
 
-  external set align(String value);
   external String get align;
+  external set align(String value);
 }
 
 /// The **`HTMLAnchorElement`** interface represents hyperlink elements and
@@ -1238,54 +1890,200 @@ extension type HTMLAnchorElement._(JSObject _)
   /// Creates an [HTMLAnchorElement] using the tag 'a'.
   HTMLAnchorElement() : _ = document.createElement('a');
 
-  external set target(String value);
+  /// The **`target`** property of the [HTMLAnchorElement] interface is a string
+  /// that indicates where to display the linked resource.
+  ///
+  /// It reflects the
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#target)
+  /// attribute of the `a` element.
   external String get target;
-  external set download(String value);
+  external set target(String value);
+
+  /// The **`HTMLAnchorElement.download`** property is a
+  /// string indicating that the linked resource is intended to be
+  /// downloaded rather than displayed in the browser. The value, if any,
+  /// specifies the
+  /// default file name for use in labeling the resource in a local file system.
+  /// If the name
+  /// is not a valid file name in the underlying OS, the browser will adjust it.
+  ///
+  /// > **Note:** This value might not be used for download. This value cannot
+  /// > be used to determine whether the download will occur.
   external String get download;
-  external set ping(String value);
+  external set download(String value);
+
+  /// The **`ping`** property of the [HTMLAnchorElement] interface is a
+  /// space-separated list of URLs. When the link is followed, the browser will
+  /// send `POST` requests with the body PING to the URLs.
+  ///
+  /// It reflects the `ping` attribute of the `a` element.
+  ///
+  /// > **Note:** This property is not effective in Firefox and its usage may be
+  /// > limited due to privacy and security concerns.
   external String get ping;
-  external set rel(String value);
+  external set ping(String value);
+
+  /// The **`HTMLAnchorElement.rel`** property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a string containing a space-separated list of link types
+  /// indicating the relationship between the resource represented by the `a`
+  /// element and the current document.
   external String get rel;
+  external set rel(String value);
+
+  /// The **`HTMLAnchorElement.relList`** read-only property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a live [DOMTokenList] containing the set of link types
+  /// indicating the relationship between the resource represented by the `a`
+  /// element and the current document.
+  ///
+  /// The property itself is read-only, meaning you can't substitute the
+  /// [DOMTokenList] with another one, but its contents can still be changed.
   external DOMTokenList get relList;
-  external set hreflang(String value);
+
+  /// The **`hreflang`** property of the [HTMLAnchorElement] interface is a
+  /// string that is the language of the linked resource.
+  ///
+  /// It reflects the `hreflang` attribute of the `a` element and is the empty
+  /// string (`""`) if there is no `hreflang` element.
+  ///
+  /// Web browsers and search engines may use this information to understand the
+  /// language of the linked content better, but they are not required to follow
+  /// it. The value provided for the `hreflang` attribute adheres to the format
+  /// defined in `5646, "Tags for Identifying Languages (also known as BCP
+  /// 47)"`. If not, it is ignored.
+  ///
+  /// Web browsers do not rely solely on the `hreflang` attribute after fetching
+  /// the linked resource. Instead, they use language information directly
+  /// associated with the resource (e.g., through HTTP headers) to determine its
+  /// language.
   external String get hreflang;
-  external set type(String value);
+  external set hreflang(String value);
+
+  /// The **`type`** property of the [HTMLAnchorElement] interface is a string
+  /// that indicates the MIME type of the linked resource.
+  ///
+  /// It reflects the `type` attribute of the `a` element.
   external String get type;
-  external set text(String value);
+  external set type(String value);
+
+  /// The **`text`** property of the [HTMLAnchorElement] represents the text
+  /// inside the the element.
+  /// This property represents the same information as [Node.textContent].
   external String get text;
-  external set referrerPolicy(String value);
+  external set text(String value);
+
+  /// The
+  /// **`HTMLAnchorElement.referrerPolicy`**
+  /// property reflect the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#referrerpolicy)
+  /// attribute of the
+  /// `a` element defining which referrer is sent when fetching the resource.
   external String get referrerPolicy;
-  external set coords(String value);
+  external set referrerPolicy(String value);
   external String get coords;
-  external set charset(String value);
+  external set coords(String value);
   external String get charset;
-  external set name(String value);
+  external set charset(String value);
   external String get name;
-  external set rev(String value);
+  external set name(String value);
   external String get rev;
-  external set shape(String value);
+  external set rev(String value);
   external String get shape;
-  external set href(String value);
+  external set shape(String value);
+
+  /// The **`HTMLAnchorElement.href`** property is a
+  /// that returns a string containing the whole URL, and allows
+  /// the href to be updated.
   external String get href;
+  external set href(String value);
+
+  /// The
+  /// **`HTMLAnchorElement.origin`** read-only property is a
+  /// string containing the Unicode serialization of the origin of the
+  /// represented URL.
+  ///
+  /// That is:
+  ///
+  /// - for URL using the `http` or `https`, the scheme followed by
+  /// `'://'`, followed by the domain, followed by `':'`, followed by
+  /// the port (the default port, `80` and `443` respectively, if
+  /// explicitly specified);
+  /// - for URL using `file:` scheme, the value is browser dependent;
+  /// - for URL using the `blob:` scheme, the origin of the URL following
+  /// `blob:`. E.g `"blob:https://mozilla.org"` will have
+  /// `"https://mozilla.org".`
   external String get origin;
-  external set protocol(String value);
+
+  /// The
+  /// **`HTMLAnchorElement.protocol`**
+  /// property is a string representing the protocol scheme of the URL,
+  /// including the final `':'`.
   external String get protocol;
-  external set username(String value);
+  external set protocol(String value);
+
+  /// The **`HTMLAnchorElement.username`** property is a
+  /// string containing the username specified before the domain name.
   external String get username;
-  external set password(String value);
+  external set username(String value);
+
+  /// The **`HTMLAnchorElement.password`** property is a
+  /// string containing the password specified before the domain name.
+  ///
+  /// If it is set without first setting the
+  /// [`username`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement/username)
+  /// property, it silently fails.
   external String get password;
-  external set host(String value);
+  external set password(String value);
+
+  /// The **`HTMLAnchorElement.host`** property is a
+  /// string containing the host, that is the _hostname_, and then,
+  /// if the _port_ of the URL is nonempty, a `':'`, and the _port_
+  /// of the URL.
   external String get host;
-  external set hostname(String value);
+  external set host(String value);
+
+  /// The **`HTMLAnchorElement.hostname`** property is a
+  /// string containing the domain of the URL.
   external String get hostname;
-  external set port(String value);
+  external set hostname(String value);
+
+  /// The **`HTMLAnchorElement.port`** property is a
+  /// string containing the port number of the URL. If the URL does not
+  /// contain an explicit port number, it will be set to `''`.
   external String get port;
-  external set pathname(String value);
+  external set port(String value);
+
+  /// The **`HTMLAnchorElement.pathname`** property is a
+  /// string containing an initial `'/'` followed by the path of
+  /// the URL not including the query string or fragment (or the empty string if
+  /// there is no
+  /// path).
   external String get pathname;
-  external set search(String value);
+  external set pathname(String value);
+
+  /// The **`HTMLAnchorElement.search`** property is a search
+  /// string, also called a _query string_, that is a string containing
+  /// a `'?'` followed by the parameters of the URL.
+  ///
+  /// Modern browsers provide
+  /// [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/get#examples)
+  /// and
+  /// [`URL.searchParams`](/en-US/docs/Web/API/URL/searchParams#examples)
+  /// to make it easy to parse out the parameters from the querystring.
   external String get search;
-  external set hash(String value);
+  external set search(String value);
+
+  /// The
+  /// **`HTMLAnchorElement.hash`** property returns a
+  /// string containing a `'#'` followed by the fragment
+  /// identifier of the URL.
+  ///
+  /// The fragment is [URL encoded](https://en.wikipedia.org/wiki/URL_encoding).
+  /// If the URL does not
+  /// have a fragment identifier, this property contains an empty string, `""`.
   external String get hash;
+  external set hash(String value);
 }
 
 /// The **`HTMLDataElement`** interface provides special properties (beyond the
@@ -1300,8 +2098,12 @@ extension type HTMLDataElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLDataElement] using the tag 'data'.
   HTMLDataElement() : _ = document.createElement('data');
 
-  external set value(String value);
+  /// The **`value`** property of the [HTMLDataElement]
+  /// interface returns a string reflecting the
+  /// [`value`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/data#value)
+  /// HTML attribute.
   external String get value;
+  external set value(String value);
 }
 
 /// The **`HTMLTimeElement`** interface provides special properties (beyond the
@@ -1316,8 +2118,154 @@ extension type HTMLTimeElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLTimeElement] using the tag 'time'.
   HTMLTimeElement() : _ = document.createElement('time');
 
-  external set dateTime(String value);
+  /// The
+  /// **`HTMLTimeElement.dateTime`**
+  /// property is a string that reflects the
+  /// [`datetime`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/time#datetime)
+  /// HTML attribute, containing a machine-readable form of the element's date
+  /// and
+  /// time value.
+  ///
+  /// The format of the string must follow one of the following HTML
+  /// microsyntaxes:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th scope="col">Microsyntax</th>
+  ///       <th scope="col">Description</th>
+  ///       <th scope="col">Examples</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td>Valid month string</td>
+  ///       <td><em>YYYY</em><code>-</code><em>MM</em></td>
+  ///       <td><code>2011-11</code>, <code>2013-05</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid date string</td>
+  ///       <td><em>YYYY</em><code>-</code><em>MM</em><code>-</code><em>DD</em></td>
+  ///       <td><code>1887-12-01</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid yearless date string</td>
+  ///       <td><em>MM</em><code>-</code><em>DD</em></td>
+  ///       <td><code>11-12</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid time string</td>
+  ///       <td>
+  ///         <em>HH</em><code>:</code><em>MM</em><br /><em>HH</em><code>:</code
+  /// ><em>MM</em><code>:</code><em>SS</em><br /><em>HH</em><code>:</code
+  /// ><em>MM</em><code>:</code><em>SS</em><code>.</code><em>mmm</em>
+  ///       </td>
+  ///       <td>
+  ///         <code>23:59</code><br /><code>12:15:47</code><br /><code
+  /// >12:15:52.998</code
+  /// >
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid local date and time string</td>
+  ///       <td>
+  ///         <em>YYYY</em><code>-</code><em>MM</em><code>-</code><em>DD</em>
+  ///         <em>HH</em><code>:</code><em>MM</em><br /><em>YYYY</em><code>-</code
+  /// ><em>MM</em><code>-</code><em>DD</em> <em>HH</em><code>:</code
+  /// ><em>MM</em><code>:</code><em>SS</em><br /><em>YYYY</em><code>-</code
+  /// ><em>MM</em><code>-</code><em>DD</em> <em>HH</em><code>:</code
+  /// ><em>MM</em><code>:</code><em>SS</em><code>.</code><em>mmm</em><br /><em
+  /// >YYYY</em
+  /// ><code>-</code><em>MM</em><code>-</code><em>DD</em><code>T</code
+  /// ><em>HH</em><code>:</code><em>MM</em><br /><em>YYYY</em><code>-</code
+  /// ><em>MM</em><code>-</code><em>DD</em><code>T</code><em>HH</em
+  /// ><code>:</code><em>MM</em><code>:</code><em>SS</em><br /><em>YYYY</em
+  /// ><code>-</code><em>MM</em><code>-</code><em>DD</em><code>T</code
+  /// ><em>HH</em><code>:</code><em>MM</em><code>:</code><em>SS</em
+  /// ><code>.</code><em>mmm</em>
+  ///       </td>
+  ///       <td>
+  ///         <code
+  /// >2013-12-25 11:12<br />1972-07-25 13:43:07<br />1941-03-15
+  /// 07:06:23.678<br />2013-12-25T11:12<br />1972-07-25T13:43:07<br
+  /// />1941-03-15T07:06:23.678</code
+  /// >
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid time-zone offset string</td>
+  ///       <td>
+  ///         <code>Z</code><br /><code>+</code><em>HHMM</em><br /><code>+</code
+  /// ><em>HH</em><code>:</code><em>MM</em><br /><code>-</code><em>HHMM</em
+  /// ><br /><code>-</code><em>HH</em><code>:</code><em>MM</em>
+  ///       </td>
+  ///       <td>
+  ///         <code>Z<br />+0200<br />+04:30<br />-0300<br />-08:00</code>
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid global date and time string</td>
+  ///       <td>
+  ///         <em
+  /// >Any combination of a valid local date and time string followed by a
+  /// valid time-zone offset string</em
+  /// >
+  ///       </td>
+  ///       <td>
+  ///         <code
+  /// >2013-12-25 11:12+0200<br />1972-07-25 13:43:07+04:30<br />1941-03-15
+  /// 07:06:23.678Z<br />2013-12-25T11:12-08:00</code
+  /// >
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid week string</td>
+  ///       <td><em>YYYY</em><code>-W</code><em>WW</em></td>
+  ///       <td><code>2013-W46</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Four or more ASCII digits</td>
+  ///       <td><em>YYYY</em></td>
+  ///       <td><code>2013</code>, <code>0001</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Valid duration string</td>
+  ///       <td>
+  ///         <code>P</code><em>d</em><code>D</code><code>T</code><em>h</em
+  /// ><code>H</code><em>m</em><code>M</code><em>s</em><code>S</code
+  /// ><br /><code>P</code><em>d</em><code>D</code><code>T</code><em>h</em
+  /// ><code>H</code><em>m</em><code>M</code><em>s</em><code>.</code>X<code
+  /// >S</code
+  /// ><br /><code>P</code><em>d</em><code>D</code><code>T</code><em>h</em
+  /// ><code>H</code><em>m</em><code>M</code><em>s</em><code>.</code>XX<code
+  /// >S</code
+  /// ><br /><code>P</code><em>d</em><code>D</code><code>T</code><em>h</em
+  /// ><code>H</code><em>m</em><code>M</code><em>s</em><code>.</code>XXX<code
+  /// >S</code
+  /// ><br /><code>P</code><code>T</code><em>h</em><code>H</code><em>m</em
+  /// ><code>M</code><em>s</em><code>S</code><br /><code>P</code><code>T</code
+  /// ><em>h</em><code>H</code><em>m</em><code>M</code><em>s</em
+  /// ><code>.</code>X<code>S</code><br /><code>P</code><code>T</code
+  /// ><em>h</em><code>H</code><em>m</em><code>M</code><em>s</em
+  /// ><code>.</code>XX<code>S</code><br /><code>P</code><code>T</code
+  /// ><em>h</em><code>H</code><em>m</em><code>M</code><em>s</em
+  /// ><code>.</code>XXX<code>S</code><br /><em>w</em><code>w </code><em>d</em
+  /// ><code>d </code><em>h</em><code>h </code><em>m</em><code>m </code
+  /// ><em>s</em><code>s</code>
+  ///       </td>
+  ///       <td>
+  ///         <code
+  /// >P12DT7H12M13S<br />P12DT7H12M13.3S<br />P12DT7H12M13.45S<br
+  /// />P12DT7H12M13.455S<br />PT7H12M13S<br />PT7H12M13.2S<br
+  /// />PT7H12M13.56S<br />PT7H12M13.999S<br />7d
+  /// 5h 24m 13s</code
+  /// >
+  ///       </td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external String get dateTime;
+  external set dateTime(String value);
 }
 
 /// The **`HTMLSpanElement`** interface represents a `span` element and derives
@@ -1344,8 +2292,8 @@ extension type HTMLBRElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLBRElement] using the tag 'br'.
   HTMLBRElement() : _ = document.createElement('br');
 
-  external set clear(String value);
   external String get clear;
+  external set clear(String value);
 }
 
 /// The **`HTMLModElement`** interface provides special properties (beyond the
@@ -1364,10 +2312,10 @@ extension type HTMLModElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLModElement] using the tag 'del'.
   HTMLModElement.del() : _ = document.createElement('del');
 
-  external set cite(String value);
   external String get cite;
-  external set dateTime(String value);
+  external set cite(String value);
   external String get dateTime;
+  external set dateTime(String value);
 }
 
 /// The **`HTMLPictureElement`** interface represents a `picture` HTML element.
@@ -1396,20 +2344,38 @@ extension type HTMLSourceElement._(JSObject _)
   /// Creates an [HTMLSourceElement] using the tag 'source'.
   HTMLSourceElement() : _ = document.createElement('source');
 
-  external set src(String value);
   external String get src;
-  external set type(String value);
+  external set src(String value);
   external String get type;
-  external set srcset(String value);
+  external set type(String value);
   external String get srcset;
-  external set sizes(String value);
+  external set srcset(String value);
   external String get sizes;
-  external set media(String value);
+  external set sizes(String value);
   external String get media;
-  external set width(int value);
+  external set media(String value);
+
+  /// The **`width`** property of the [HTMLSourceElement] interface is a
+  /// non-negative number indicating the width of the image resource in CSS
+  /// pixels.
+  ///
+  /// The property has an effect only if the parent of the current `source`
+  /// element is a `picture` element.
+  ///
+  /// It reflects the `width` attribute of the `source` element.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The **`height`** property of the [HTMLSourceElement] interface is a
+  /// non-negative number indicating the height of the image resource in CSS
+  /// pixels.
+  ///
+  /// The property has an effect only if the parent of the current `source`
+  /// element is a `picture` element.
+  ///
+  /// It reflects the `height` attribute of the `source` element.
   external int get height;
+  external set height(int value);
 }
 
 /// The **`HTMLImageElement`** interface represents an HTML `img` element,
@@ -1437,52 +2403,322 @@ extension type HTMLImageElement._(JSObject _) implements HTMLElement, JSObject {
   /// from causing
   /// a delay while the image loads.
   external JSPromise<JSAny?> decode();
+
+  /// The read-only [HTMLImageElement] property
+  /// **`x`** indicates the x-coordinate of the
+  /// `img` element's left border edge relative to the root element's
+  /// origin.
+  ///
+  /// The `x` and [HTMLImageElement.y] properties are only valid
+  /// for an image if its `display` property has the computed value
+  /// `table-column` or `table-column-group`. In other words: it has
+  /// either of those values set explicitly on it, or it has inherited it from a
+  /// containing
+  /// element, or by being located within a column described by either `col`
+  /// or `colgroup`.
   external int get x;
+
+  /// The read-only [HTMLImageElement] property
+  /// **`y`** indicates the y-coordinate of the
+  /// `img` element's top border edge relative to the root element's
+  /// origin.
+  ///
+  /// The [HTMLImageElement.x] and `y` properties are only valid
+  /// for an image if its `display` property has the computed value
+  /// `table-column` or `table-column-group`. In other words: it has
+  /// either of those values set explicitly on it, or it has inherited it from a
+  /// containing
+  /// element, or by being located within a column described by either
+  /// `col` or `colgroup`.
   external int get y;
-  external set alt(String value);
+
+  /// The [HTMLImageElement] property **`alt`** provides fallback (alternate)
+  /// text to display when the image specified by the `img` element is not
+  /// loaded.
+  ///
+  /// This may be the case because of an error, because the user has disabled
+  /// the loading of images, or because the image hasn't finished loading yet.
+  ///
+  /// Perhaps the most important reason to use the `alt` property is to support
+  /// [accessibility](https://developer.mozilla.org/en-US/docs/Web/Accessibility),
+  /// as the `alt` text may be used by screen readers and other assistive
+  /// technologies to help people with a disability make full use of your
+  /// content.
+  /// It will be read aloud or sent to a braille output device, for example, to
+  /// support blind or visually impaired users.
+  ///
+  /// > **Think of it like this:** When choosing `alt` strings for your images,
+  /// > imagine what you would say when reading the page to someone over the
+  /// > phone without mentioning that there's an image on the page.
+  ///
+  /// The alternate text is displayed in the space the image would occupy and
+  /// should be able to take the place of the image _without altering the
+  /// meaning of the page_.
   external String get alt;
-  external set src(String value);
+  external set alt(String value);
+
+  /// The [HTMLImageElement] property
+  /// **`src`**, which reflects the HTML
+  /// [`src`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#src)
+  /// attribute, specifies the image to display in the `img`
+  /// element.
   external String get src;
-  external set srcset(String value);
+  external set src(String value);
+
+  /// The [HTMLImageElement] property
+  /// **`srcset`** is a string which identifies one or more
+  /// **image candidate strings**, separated using commas (`,`) each
+  /// specifying image resources to use under given circumstances.
+  ///
+  /// Each image
+  /// candidate string contains an image URL and an optional width or pixel
+  /// density descriptor
+  /// that indicates the conditions under which that candidate should be used
+  /// instead of the
+  /// image specified by the [HTMLImageElement.src] property.
+  ///
+  /// The `srcset` property, along with the [HTMLImageElement.sizes]
+  /// property, are a crucial component in designing responsive websites, as
+  /// they
+  /// can be used together to make pages that use appropriate images for the
+  /// rendering
+  /// situation.
+  ///
+  /// > **Note:** If the
+  /// > [`srcset`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#srcset)
+  /// > attribute uses width descriptors, the `sizes` attribute must also be
+  /// > present, or the `srcset` itself will be ignored.
   external String get srcset;
-  external set sizes(String value);
+  external set srcset(String value);
+
+  /// The [HTMLImageElement] property
+  /// **`sizes`** allows you to specify the layout width of the
+  /// [image](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img) for
+  /// each of a list of media conditions. This provides the ability to
+  /// automatically select among different images—even images of different
+  /// orientations or
+  /// aspect ratios—as the document state changes to match different media
+  /// conditions.
+  ///
+  /// Each condition is specified using the same conditional format used
+  /// by
+  /// [media queries](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_media_queries).
   external String get sizes;
-  external set crossOrigin(String? value);
+  external set sizes(String value);
+
+  /// The [HTMLImageElement]
+  /// interface's **`crossOrigin`** attribute is a string which
+  /// specifies the Cross-Origin Resource Sharing () setting to use when
+  /// retrieving the image.
   external String? get crossOrigin;
-  external set useMap(String value);
+  external set crossOrigin(String? value);
+
+  /// The **`useMap`** property on the
+  /// [HTMLImageElement] interface reflects the value of the
+  /// [`usemap`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#usemap)
+  /// attribute, which is a string
+  /// providing the name of the client-side image map to apply to the image.
   external String get useMap;
-  external set isMap(bool value);
+  external set useMap(String value);
+
+  /// The [HTMLImageElement] property **`isMap`** is a
+  /// Boolean value which indicates that the image is to be used by a
+  /// server-side image map.
+  /// This may only be used on images located within an `a` element.
+  ///
+  /// > **Note:** For accessibility reasons, you should generally avoid using
+  /// > server-side image maps, as they require the use of a mouse. Use a
+  /// > [client-side image map](https://developer.mozilla.org/en-US/docs/Learn/HTML/Howto/Add_a_hit_map_on_top_of_an_image)
+  /// > instead.
   external bool get isMap;
-  external set width(int value);
+  external set isMap(bool value);
+
+  /// The **`width`** property of the
+  /// [HTMLImageElement] interface indicates the width at which an image is
+  /// drawn in  if it's being drawn or rendered to
+  /// any visual medium such as a screen or printer. Otherwise, it's the
+  /// natural, pixel
+  /// density-corrected width of the image.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The **`height`** property of the
+  /// [HTMLImageElement] interface indicates the height at which the image is
+  /// drawn, in  if the image is being drawn or rendered to any
+  /// visual medium such as the screen or a printer; otherwise, it's the
+  /// natural, pixel
+  /// density corrected height of the image.
   external int get height;
+  external set height(int value);
+
+  /// The [HTMLImageElement] interface's read-only
+  /// **`naturalWidth`** property returns the intrinsic (natural),
+  /// density-corrected width of the image in .
+  ///
+  /// This is the width the image is if drawn with nothing constraining
+  /// its width; if you neither specify a width for the image nor place the
+  /// image inside a
+  /// container that limits or expressly specifies the image width, this is the
+  /// number of CSS
+  /// pixels wide the image will be.
+  ///
+  /// The corresponding [HTMLImageElement.naturalHeight] method
+  /// returns the natural height of the image.
+  ///
+  /// > **Note:** Most of the time the natural width is the actual width of the
+  /// > image sent by the server.
+  /// > Nevertheless, browsers can modify an image before pushing it to the
+  /// > renderer. For example, Chrome
+  /// > [degrades the resolution of images on low-end devices](https://crbug.com/1187043#c7).
+  /// > In such cases, `naturalWidth` will consider the width of the image
+  /// > modified
+  /// > by such browser interventions as the natural width, and returns this
+  /// > value.
   external int get naturalWidth;
+
+  /// The [HTMLImageElement] interface's
+  /// **`naturalHeight`** property is a read-only value which
+  /// returns the intrinsic (natural), density-corrected height of the image in
+  /// .
+  ///
+  /// This is the height the image is if
+  /// drawn with nothing constraining its height; if you don't specify a height
+  /// for the image,
+  /// or place the image inside a container that either limits or expressly
+  /// specifies the
+  /// image height, it will be rendered this tall.
+  ///
+  /// > **Note:** Most of the time the natural height is the actual height of
+  /// > the image sent by the server.
+  /// > Nevertheless, browsers can modify an image before pushing it to the
+  /// > renderer. For example, Chrome
+  /// > [degrades the resolution of images on low-end devices](https://crbug.com/1187043#c7).
+  /// > In such cases, `naturalHeight` will consider the height of the image
+  /// > modified
+  /// > by such browser interventions as the natural height, and returns this
+  /// > value.
   external int get naturalHeight;
+
+  /// The read-only [HTMLImageElement] interface's
+  /// **`complete`** attribute is a Boolean value which indicates
+  /// whether or not the image has completely loaded.
   external bool get complete;
+
+  /// The read-only [HTMLImageElement] property
+  /// **`currentSrc`** indicates the URL of the image which is
+  /// currently presented in the `img` element it represents.
   external String get currentSrc;
-  external set referrerPolicy(String value);
+
+  /// The
+  /// **`HTMLImageElement.referrerPolicy`**
+  /// property reflects the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#referrerpolicy)
+  /// attribute of the
+  /// `img` element defining which referrer is sent when fetching the
+  /// resource.
   external String get referrerPolicy;
-  external set decoding(String value);
+  external set referrerPolicy(String value);
+
+  /// The **`decoding`** property of the [HTMLImageElement] interface provides a
+  /// hint to the browser as to how it should decode the image. More
+  /// specifically, whether it should wait for the image to be decoded before
+  /// presenting other content updates or not.
   external String get decoding;
-  external set loading(String value);
+  external set decoding(String value);
+
+  /// The [HTMLImageElement] property **`loading`** is a string whose value
+  /// provides a hint to the  on how to handle the loading of the image which is
+  /// currently outside the window's .
+  ///
+  /// This helps to optimize the loading of the document's contents by
+  /// postponing loading the image until it's expected to be needed, rather than
+  /// immediately during the initial page load.
   external String get loading;
-  external set fetchPriority(String value);
+  external set loading(String value);
+
+  /// The **`fetchPriority`** property of the
+  /// [HTMLImageElement] interface represents a hint given to the browser on how
+  /// it should prioritize the fetch of the image relative to other images.
   external String get fetchPriority;
-  external set name(String value);
+  external set fetchPriority(String value);
+
+  /// The [HTMLImageElement]
+  /// interface's _deprecated_ **`name`** property specifies
+  /// a name for the element. This has been replaced by the [Element.id]
+  /// property available on all elements.
   external String get name;
-  external set lowsrc(String value);
+  external set name(String value);
   external String get lowsrc;
-  external set align(String value);
+  external set lowsrc(String value);
+
+  /// The _obsolete_ **`align`**
+  /// property of the [HTMLImageElement] interface is a string which indicates
+  /// how to position the image relative to its container.
+  ///
+  /// You should instead use the
+  /// CSS property , which does in fact also work on images
+  /// despite its name. You can also use the `float` property to float the image
+  /// to the left or right margin.
+  ///
+  /// The `align` property reflects the HTML
+  /// [`align`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#align)
+  /// content attribute.
   external String get align;
-  external set hspace(int value);
+  external set align(String value);
+
+  /// The
+  /// _obsolete_ **`hspace`** property of the
+  /// [HTMLImageElement] interface specifies the number of pixels of empty
+  /// space to leave empty on the left and right sides of the `img` element
+  /// when laying out the page.
+  ///
+  /// This property reflects the
+  /// [`hspace`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img#hspace)
+  /// attribute.
   external int get hspace;
-  external set vspace(int value);
+  external set hspace(int value);
+
+  /// The _obsolete_ **`vspace`** property of the
+  /// [HTMLImageElement] interface specifies the number of pixels of empty space
+  /// to leave empty on the top and bottom of the `img` element when laying
+  /// out the page.
   external int get vspace;
-  external set longDesc(String value);
+  external set vspace(int value);
+
+  /// The _deprecated_ property **`longDesc`** on
+  /// the [HTMLImageElement] interface specifies the URL of a text or HTML file
+  /// which contains a long-form description of the image. This can be used to
+  /// provide optional added details beyond the short description provided in
+  /// the
+  /// [`title`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes#title)
+  /// attribute.
   external String get longDesc;
-  external set border(String value);
+  external set longDesc(String value);
+
+  /// The obsolete [HTMLImageElement]
+  /// property **`border`** specifies the number of pixels thick the
+  /// border surrounding the image should be. A value of 0, the default,
+  /// indicates that no
+  /// border should be drawn.
+  ///
+  /// You should _not_ use this property! Instead, you should use CSS to style
+  /// the
+  /// border. The `border` property or its longhand properties to not only set
+  /// the thickness of the border but to potentially apply a wide variety of
+  /// other styling
+  /// options to it.
+  ///
+  /// The width, specifically, is controlled using the writing-mode aware
+  /// , ,
+  /// , and
+  /// properties.
+  ///
+  /// For compatibility (or perhaps other) reasons, you can use the older
+  /// properties instead
+  /// (or in addition): , ,
+  /// , and .
   external String get border;
+  external set border(String value);
 }
 
 /// The **`HTMLIFrameElement`** interface provides special properties and
@@ -1500,39 +2736,104 @@ extension type HTMLIFrameElement._(JSObject _)
   HTMLIFrameElement() : _ = document.createElement('iframe');
 
   external Document? getSVGDocument();
-  external set src(String value);
+
+  /// The **`HTMLIFrameElement.src`**
+  /// A string that reflects the
+  /// [`src`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#src)
+  /// HTML attribute, containing the address of the content to be embedded.
+  ///
+  /// Note that programmatically removing an `<iframe>`'s src attribute (e.g.
+  /// via [Element.removeAttribute]) causes `about:blank` to be loaded in the
+  /// frame.
   external String get src;
-  external set srcdoc(String value);
+  external set src(String value);
+
+  /// The **`srcdoc`** property of the [HTMLIFrameElement] specifies the content
+  /// of the page.
   external String get srcdoc;
-  external set name(String value);
+  external set srcdoc(String value);
+
+  /// The **`name`** property of the [HTMLIFrameElement] interface is a string
+  /// value that reflects the `name` attribute of the `iframe` element,
+  /// indicating the specific name of the `<iframe>` element.
   external String get name;
+  external set name(String value);
   external DOMTokenList get sandbox;
-  external set allow(String value);
   external String get allow;
-  external set allowFullscreen(bool value);
+  external set allow(String value);
+
+  /// The **`allowFullscreen`** property of the [HTMLIFrameElement] interface is
+  /// a boolean value that reflects the `allowfullscreen` attribute of the
+  /// `iframe` element, indicating whether to allow the iframe's contents to use
+  /// [Element.requestFullscreen].
+  ///
+  /// > **Note:** This property is considered a legacy property. Use
+  /// > `allow="fullscreen"` and [HTMLIFrameElement.allow] instead.
   external bool get allowFullscreen;
-  external set width(String value);
-  external String get width;
-  external set height(String value);
+  external set allowFullscreen(bool value);
+
+  /// The **`width`** property of the [HTMLIFrameElement] interface returns a
+  /// string that reflects the `width` attribute of the `iframe` element,
+  /// indicating the width of the frame in CSS pixels.
+  external String get width;
+  external set width(String value);
+
+  /// The **`height`** property of the [HTMLIFrameElement] interface returns a
+  /// string that reflects the `height` attribute of the `iframe` element,
+  /// indicating the height of the frame in CSS pixels.
   external String get height;
-  external set referrerPolicy(String value);
+  external set height(String value);
+
+  /// The
+  /// **`HTMLIFrameElement.referrerPolicy`**
+  /// property reflects the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#referrerpolicy)
+  /// attribute of the
+  /// `iframe` element defining which referrer is sent when fetching the
+  /// resource.
   external String get referrerPolicy;
-  external set loading(String value);
+  external set referrerPolicy(String value);
+
+  /// The **`loading`** property of the [HTMLIFrameElement] interface is a
+  /// string that provides a hint to the  indicating whether the
+  /// [iframe](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe)
+  /// should be loaded immediately on page load, or only when it is needed.
+  ///
+  /// This can be used to optimize the loading of the document's contents.
+  /// Iframes that are visible when the page loads can be downloaded immediately
+  /// (eagerly), while iframes that are likely to be offscreen on initial page
+  /// load can be downloaded lazily — just before they will appear in the
+  /// window's .
   external String get loading;
+  external set loading(String value);
+
+  /// If the iframe and the iframe's parent document are
+  /// [Same Origin](https://developer.mozilla.org/en-US/docs/Web/Security/Same-origin_policy),
+  /// returns a
+  /// [`Document`](https://developer.mozilla.org/en-US/docs/Web/API/Document)
+  /// (that is, the active document in the inline frame's nested browsing
+  /// context), else returns `null`.
   external Document? get contentDocument;
+
+  /// The **`contentWindow`** property returns the
+  /// [Window](https://developer.mozilla.org/en-US/docs/Web/API/Window) object
+  /// of an
+  /// [HTMLIFrameElement](https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement).
+  ///
+  /// This attribute is read-only.
   external Window? get contentWindow;
-  external set align(String value);
   external String get align;
-  external set scrolling(String value);
+  external set align(String value);
   external String get scrolling;
-  external set frameBorder(String value);
+  external set scrolling(String value);
   external String get frameBorder;
-  external set longDesc(String value);
+  external set frameBorder(String value);
   external String get longDesc;
-  external set marginHeight(String value);
+  external set longDesc(String value);
   external String get marginHeight;
-  external set marginWidth(String value);
+  external set marginHeight(String value);
   external String get marginWidth;
+  external set marginWidth(String value);
 }
 
 /// The **`HTMLEmbedElement`** interface provides special properties (beyond the
@@ -1552,18 +2853,26 @@ extension type HTMLEmbedElement._(JSObject _) implements HTMLElement, JSObject {
   HTMLEmbedElement() : _ = document.createElement('embed');
 
   external Document? getSVGDocument();
-  external set src(String value);
   external String get src;
-  external set type(String value);
+  external set src(String value);
   external String get type;
-  external set width(String value);
+  external set type(String value);
+
+  /// The **`width`** property of the [HTMLEmbedElement] interface returns a
+  /// string that reflects the `width` attribute of the `embed` element,
+  /// indicating the displayed width of the resource in CSS pixels.
   external String get width;
-  external set height(String value);
+  external set width(String value);
+
+  /// The **`height`** property of the [HTMLEmbedElement] interface returns a
+  /// string that reflects the `height` attribute of the `embed` element,
+  /// indicating the displayed height of the resource in CSS pixels.
   external String get height;
-  external set align(String value);
+  external set height(String value);
   external String get align;
-  external set name(String value);
+  external set align(String value);
   external String get name;
+  external set name(String value);
 }
 
 /// The **`HTMLObjectElement`** interface provides special properties and
@@ -1593,44 +2902,122 @@ extension type HTMLObjectElement._(JSObject _)
   /// [HTMLObjectElement] interface sets a custom validity message for the
   /// element.
   external void setCustomValidity(String error);
-  external set data(String value);
+
+  /// The **`data`** property of the
+  /// [HTMLObjectElement] interface returns a string that
+  /// reflects the
+  /// [`data`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#data)
+  /// HTML attribute, specifying the address
+  /// of a resource's data.
   external String get data;
-  external set type(String value);
+  external set data(String value);
+
+  /// The **`type`** property of the
+  /// [HTMLObjectElement] interface returns a string that
+  /// reflects the
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#type)
+  /// HTML attribute, specifying the MIME type
+  /// of the resource.
   external String get type;
-  external set name(String value);
+  external set type(String value);
+
+  /// The **`name`** property of the
+  /// [HTMLObjectElement] interface returns a string that
+  /// reflects the
+  /// [`name`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#name)
+  /// HTML attribute, specifying the name of
+  /// the browsing context.
   external String get name;
+  external set name(String value);
+
+  /// The **`form`** read-only property of the
+  /// [HTMLObjectElement] interface returns a [HTMLFormElement]
+  /// representing the object element's form owner, or null if there isn't one.
   external HTMLFormElement? get form;
-  external set width(String value);
+
+  /// The **`width`** property of the
+  /// [HTMLObjectElement] interface returns a string that
+  /// reflects the
+  /// [`width`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#width)
+  /// HTML attribute, specifying the
+  /// displayed width of the resource in CSS pixels.
   external String get width;
-  external set height(String value);
+  external set width(String value);
+
+  /// The **`height`** property of the
+  /// [HTMLObjectElement] interface Returns a string that
+  /// reflects the
+  /// [`height`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#height)
+  /// HTML attribute, specifying the
+  /// displayed height of the resource in CSS pixels.
   external String get height;
+  external set height(String value);
+
+  /// The **`contentDocument`** read-only property of
+  /// the [HTMLObjectElement] interface Returns a [Document]
+  /// representing the active document of the object element's nested browsing
+  /// context, if
+  /// any; otherwise null.
   external Document? get contentDocument;
+
+  /// The **`contentWindow`** read-only property of
+  /// the [HTMLObjectElement] interface returns a
+  /// representing the window proxy of the object element's nested browsing
+  /// context, if any;
+  /// otherwise null.
   external Window? get contentWindow;
+
+  /// The **`willValidate`** read-only property of
+  /// the [HTMLObjectElement] interface returns a boolean value that
+  /// indicates whether the element is a candidate for constraint validation.
+  /// Always false for
+  /// HTMLObjectElement objects.
   external bool get willValidate;
+
+  /// The **`validity`** read-only property of the
+  /// [HTMLObjectElement] interface returns a [ValidityState] with
+  /// the validity states that this element is in.
   external ValidityState get validity;
+
+  /// The **`validationMessage`** read-only property
+  /// of the [HTMLObjectElement] interface returns a string
+  /// representing a localized message that describes the validation constraints
+  /// that the
+  /// control does not satisfy (if any). This is the empty string if the control
+  /// is not a
+  /// candidate for constraint validation (willValidate is false), or it
+  /// satisfies its
+  /// constraints.
   external String get validationMessage;
-  external set align(String value);
   external String get align;
-  external set archive(String value);
+  external set align(String value);
   external String get archive;
-  external set code(String value);
+  external set archive(String value);
   external String get code;
-  external set declare(bool value);
+  external set code(String value);
   external bool get declare;
-  external set hspace(int value);
+  external set declare(bool value);
   external int get hspace;
-  external set standby(String value);
+  external set hspace(int value);
   external String get standby;
-  external set vspace(int value);
+  external set standby(String value);
   external int get vspace;
-  external set codeBase(String value);
+  external set vspace(int value);
   external String get codeBase;
-  external set codeType(String value);
+  external set codeBase(String value);
   external String get codeType;
-  external set useMap(String value);
+  external set codeType(String value);
+
+  /// The **`useMap`** property of the
+  /// [HTMLObjectElement] interface returns a string that
+  /// reflects the
+  /// [`usemap`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/object#usemap)
+  /// HTML attribute, specifying a
+  /// `map` element to use.
   external String get useMap;
-  external set border(String value);
+  external set useMap(String value);
   external String get border;
+  external set border(String value);
 }
 
 /// Implemented by the `video` element, the **`HTMLVideoElement`** interface
@@ -1661,16 +3048,46 @@ extension type HTMLVideoElement._(JSObject _)
   ///
   /// The data returned can be used to evaluate the quality of the video stream.
   external VideoPlaybackQuality getVideoPlaybackQuality();
-  external set width(int value);
+
+  /// The **`width`** property of the [HTMLVideoElement] interface returns an
+  /// integer that that reflects the `width` attribute of the `video` element,
+  /// specifying the displayed width of the resource in CSS pixels.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The **`height`** property of the [HTMLVideoElement] interface returns an
+  /// integer that reflects the `height` attribute of the `video` element,
+  /// specifying the displayed height of the resource in CSS pixels.
   external int get height;
+  external set height(int value);
+
+  /// The [HTMLVideoElement] interface's read-only **`videoWidth`** property
+  /// indicates the
+  /// [intrinsic width](https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement/videoHeight#about_intrinsic_width_and_height)
+  /// of the video, expressed in CSS pixels.
+  /// In simple terms, this is the width of the media in its natural size.
+  ///
+  /// See [`HTMLVideoElement.videoHeight` > About intrinsic width and
+  /// height](/en-US/docs/Web/API/HTMLVideoElement/videoHeight#about_intrinsic_width_and_height)
+  /// for more details.
   external int get videoWidth;
+
+  /// The [HTMLVideoElement] interface's read-only **`videoHeight`** property
+  /// indicates the [intrinsic height](#about_intrinsic_width_and_height) of the
+  /// video, expressed in CSS pixels.
+  /// In simple terms, this is the height of the media in its natural size.
   external int get videoHeight;
-  external set poster(String value);
+
+  /// The **`poster`** property of the [HTMLVideoElement] interface is a string
+  /// that reflects the URL for an image to be shown while no video data is
+  /// available. If the property does not represent a valid URL, no poster frame
+  /// will be shown.
+  ///
+  /// It reflects the `poster` attribute of the `video` element.
   external String get poster;
-  external set playsInline(bool value);
+  external set poster(String value);
   external bool get playsInline;
+  external set playsInline(bool value);
 }
 
 /// The **`HTMLAudioElement`** interface provides access to the properties of
@@ -1706,18 +3123,24 @@ extension type HTMLTrackElement._(JSObject _) implements HTMLElement, JSObject {
   external static int get LOADING;
   external static int get LOADED;
   external static int get ERROR;
-  external set kind(String value);
   external String get kind;
-  external set src(String value);
+  external set kind(String value);
+
+  /// The **`HTMLTrackElement.src`** property reflects the value of
+  /// the `track` element's
+  /// [`src`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/track#src)
+  /// attribute, which
+  /// indicates the URL of the text track's data.
   external String get src;
-  external set srclang(String value);
+  external set src(String value);
   external String get srclang;
-  external set label(String value);
+  external set srclang(String value);
   external String get label;
-  @JS('default')
-  external set default_(bool value);
+  external set label(String value);
   @JS('default')
   external bool get default_;
+  @JS('default')
+  external set default_(bool value);
   external int get readyState;
   external TextTrack get track;
 }
@@ -1802,52 +3225,278 @@ extension type HTMLMediaElement._(JSObject _) implements HTMLElement, JSObject {
     String label,
     String language,
   ]);
+
+  /// The read-only **`HTMLMediaElement.mediaKeys`** property returns a
+  /// [MediaKeys] object, that is a set of keys that the element can use for
+  /// decryption of media data during playback.
   external MediaKeys? get mediaKeys;
-  external set onencrypted(EventHandler value);
   external EventHandler get onencrypted;
-  external set onwaitingforkey(EventHandler value);
+  external set onencrypted(EventHandler value);
   external EventHandler get onwaitingforkey;
+  external set onwaitingforkey(EventHandler value);
+
+  /// The **`HTMLMediaElement.error`** property is the
+  /// [MediaError] object for the most recent error, or `null` if
+  /// there has not been an error. When an [HTMLMediaElement.error_event] event
+  /// is received by the
+  /// element, you can determine details about what happened by examining this
+  /// object.
   external MediaError? get error;
-  external set src(String value);
+
+  /// The **`HTMLMediaElement.src`** property reflects the value of
+  /// the HTML media element's `src` attribute, which indicates the URL of a
+  /// media
+  /// resource to use in the element.
+  ///
+  /// > **Note:** The best way to know the URL of the media resource currently
+  /// > in active use in this element is to look at the value of the
+  /// > [HTMLMediaElement.currentSrc] attribute, which also takes
+  /// > into account selection of a best or preferred media resource from a list
+  /// > provided in
+  /// > an [HTMLSourceElement] (which represents a `source`
+  /// > element).
   external String get src;
-  external set srcObject(MediaProvider? value);
+  external set src(String value);
+
+  /// The **`srcObject`** property of the
+  /// [HTMLMediaElement] interface sets or returns the object which serves as
+  /// the source of the media associated with the [HTMLMediaElement].
+  ///
+  /// The object can be a [MediaStream], a [MediaSource], a
+  /// [Blob], or a [File] (which inherits from `Blob`).
+  ///
+  /// > **Note:** As of March 2020, only Safari has full support for
+  /// > `srcObject`, i.e. using `MediaSource`, `MediaStream`, `Blob`, and `File`
+  /// > objects as values. Other browsers support `MediaStream` objects; until
+  /// > they catch up, consider falling back to creating a URL with
+  /// > [URL.createObjectURL_static] and assigning it to [HTMLMediaElement.src]
+  /// > (see below for an example). In addition, as of version 108 Chromium
+  /// > supports attaching a dedicated worker `MediaSource` object by assigning
+  /// > that object's [MediaSourceHandle] instance (transferred from the worker)
+  /// > to `srcObject`.
   external MediaProvider? get srcObject;
+  external set srcObject(MediaProvider? value);
+
+  /// The **`HTMLMediaElement.currentSrc`** property contains the
+  /// absolute URL of the chosen media resource. This could happen, for example,
+  /// if the web
+  /// server selects a media file based on the resolution of the user's display.
+  /// The value
+  /// is an empty string if the `networkState` property is `EMPTY`.
   external String get currentSrc;
-  external set crossOrigin(String? value);
+
+  /// The **`HTMLMediaElement.crossOrigin`** property is the CORS setting for
+  /// this media element. See
+  /// [CORS settings attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin)
+  /// for details.
   external String? get crossOrigin;
+  external set crossOrigin(String? value);
+
+  /// The
+  /// **`HTMLMediaElement.networkState`** property indicates the
+  /// current state of the fetching of media over the network.
   external int get networkState;
-  external set preload(String value);
   external String get preload;
+  external set preload(String value);
+
+  /// The **`buffered`** read-only property of [HTMLMediaElement] objects
+  /// returns a new static
+  /// [normalized `TimeRanges` object](https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges#normalized_timeranges_objects)
+  /// that represents the ranges of the media resource, if any, that the user
+  /// agent has buffered at the moment the `buffered` property is accessed.
   external TimeRanges get buffered;
+
+  /// The **`HTMLMediaElement.readyState`** property indicates the
+  /// readiness state of the media.
   external int get readyState;
   external bool get seeking;
-  external set currentTime(num value);
+
+  /// The [HTMLMediaElement] interface's
+  /// **`currentTime`** property specifies the current playback time
+  /// in seconds.
+  ///
+  /// Changing the value of `currentTime` seeks the media to
+  /// the new time.
   external num get currentTime;
+  external set currentTime(num value);
+
+  /// The _read-only_ [HTMLMediaElement]
+  /// property **`duration`** indicates the length of the element's
+  /// media in seconds.
   external num get duration;
+
+  /// The read-only **`HTMLMediaElement.paused`** property
+  /// tells whether the media element is paused.
   external bool get paused;
-  external set defaultPlaybackRate(num value);
+
+  /// The **`HTMLMediaElement.defaultPlaybackRate`** property indicates the
+  /// default playback rate for the media.
   external num get defaultPlaybackRate;
-  external set playbackRate(num value);
+  external set defaultPlaybackRate(num value);
+
+  /// The **`HTMLMediaElement.playbackRate`** property sets the rate at which
+  /// the media is being played back. This is used to implement user controls
+  /// for fast forward, slow motion, and so forth. The normal playback rate is
+  /// multiplied by this value to obtain the current rate, so a value of 1.0
+  /// indicates normal speed.
+  ///
+  /// If `playbackRate` is negative, the media is played backwards.
+  ///
+  /// The audio is muted when the fast forward or slow motion is outside a
+  /// useful range (for example, Gecko mutes the sound outside the range `0.25`
+  /// to `4.0`).
+  ///
+  /// The pitch of the audio is corrected by default. You can disable pitch
+  /// correction using the [HTMLMediaElement.preservesPitch] property.
   external num get playbackRate;
-  external set preservesPitch(bool value);
+  external set playbackRate(num value);
+
+  /// The **`HTMLMediaElement.preservesPitch`** property determines whether or
+  /// not the browser should adjust the pitch of the audio to compensate for
+  /// changes to the playback rate made by setting
+  /// [HTMLMediaElement.playbackRate].
   external bool get preservesPitch;
+  external set preservesPitch(bool value);
   external TimeRanges get played;
+
+  /// The **`seekable`** read-only property of [HTMLMediaElement] objects
+  /// returns a new static
+  /// [normalized `TimeRanges` object](https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges#normalized_timeranges_objects)
+  /// that represents the ranges of the media resource, if any, that the user
+  /// agent is able to seek to at the time `seekable` property is accessed.
   external TimeRanges get seekable;
+
+  /// The **`HTMLMediaElement.ended`** property indicates whether the media
+  /// element has ended playback.
   external bool get ended;
-  external set autoplay(bool value);
+
+  /// The **`HTMLMediaElement.autoplay`**
+  /// property reflects the
+  /// [`autoplay`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#autoplay)
+  /// HTML attribute, indicating
+  /// whether playback should automatically begin as soon as enough media is
+  /// available to do
+  /// so without interruption.
+  ///
+  /// A media element whose source is a [MediaStream] and whose
+  /// `autoplay` property is `true` will begin playback when it becomes
+  /// active (that is, when [MediaStream.active] becomes `true`).
+  ///
+  /// > **Note:** Sites which automatically play audio (or videos with an audio
+  /// > track) can be an unpleasant experience for users, so it should be
+  /// > avoided when
+  /// > possible. If you must offer autoplay functionality, you should make it
+  /// > opt-in
+  /// > (requiring a user to specifically enable it). However, autoplay can be
+  /// > useful when
+  /// > creating media elements whose source will be set at a later time, under
+  /// > user control.
+  ///
+  /// For a much more in-depth look at autoplay, autoplay blocking, and how to
+  /// respond when
+  /// autoplay is blocked by the user's browser, see our article
+  /// [Autoplay guide for media and Web Audio APIs](https://developer.mozilla.org/en-US/docs/Web/Media/Autoplay_guide).
   external bool get autoplay;
-  external set loop(bool value);
+  external set autoplay(bool value);
+
+  /// The **`HTMLMediaElement.loop`** property reflects the
+  /// [`loop`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#loop)
+  /// HTML attribute, which controls whether the media element should start over
+  /// when it reaches the end.
   external bool get loop;
-  external set controls(bool value);
+  external set loop(bool value);
+
+  /// The **`HTMLMediaElement.controls`** property reflects the
+  /// [`controls`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#controls)
+  /// HTML attribute, which controls whether user
+  /// interface controls for playing the media item will be displayed.
   external bool get controls;
-  external set volume(num value);
+  external set controls(bool value);
+
+  /// The **`HTMLMediaElement.volume`** property sets the volume at
+  /// which the media will be played.
   external num get volume;
-  external set muted(bool value);
+  external set volume(num value);
+
+  /// The **`HTMLMediaElement.muted`** property indicates whether the media
+  /// element is muted.
   external bool get muted;
-  external set defaultMuted(bool value);
+  external set muted(bool value);
+
+  /// The **`HTMLMediaElement.defaultMuted`** property reflects the
+  /// [`muted`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#muted)
+  /// HTML attribute, which indicates whether the media element's audio output
+  /// should be muted by default. This property has no dynamic effect. To mute
+  /// and unmute the audio output, use the [HTMLMediaElement.muted] property.
   external bool get defaultMuted;
+  external set defaultMuted(bool value);
+
+  /// The read-only **`audioTracks`**
+  /// property on [HTMLMediaElement] objects returns
+  /// an [AudioTrackList] object listing all of the [AudioTrack]
+  /// objects representing the media element's audio tracks.
+  ///
+  /// The media element may be
+  /// either an `audio` element or a `video` element.
+  ///
+  /// The returned list is _live_; that is, as tracks are added to and removed
+  /// from
+  /// the media element, the list's contents change dynamically. Once you have a
+  /// reference to
+  /// the list, you can monitor it for changes to detect when new audio tracks
+  /// are added or
+  /// existing ones removed. See
+  /// [AudioTrackList events](https://developer.mozilla.org/en-US/docs/Web/API/AudioTrackList#events)
+  /// to learn more about watching for changes to a media element's track list.
   external AudioTrackList get audioTracks;
+
+  /// The read-only **`videoTracks`**
+  /// property on [HTMLMediaElement] objects returns a
+  /// [VideoTrackList] object listing all of the [VideoTrack]
+  /// objects representing the media element's video tracks.
+  ///
+  /// The returned list is _live_; that is, as tracks are added to and removed
+  /// from
+  /// the media element, the list's contents change dynamically. Once you have a
+  /// reference to
+  /// the list, you can monitor it for changes to detect when new video tracks
+  /// are added or
+  /// existing ones removed. See
+  /// [VideoTrackList events](https://developer.mozilla.org/en-US/docs/Web/API/VideoTrackList#events)
+  /// to learn more about watching for changes to a media element's track list.
   external VideoTrackList get videoTracks;
+
+  /// The read-only **`textTracks`**
+  /// property on [HTMLMediaElement] objects returns a
+  /// [TextTrackList] object listing all of the [TextTrack]
+  /// objects representing the media element's text tracks, in the same order as
+  /// in
+  /// the list of text tracks.
+  ///
+  /// You can detect when tracks are added to and removed from an
+  /// [`<audio>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio)
+  /// or
+  /// [`<video>`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video)
+  /// element
+  /// using the `addtrack` and `removetrack` events. However, these
+  /// events aren't sent directly to the media element itself. Instead, they're
+  /// sent to the
+  /// track list object of the
+  /// [`HTMLMediaElement`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement)
+  /// that corresponds to the type of track that was added to the element
+  ///
+  /// The returned list is _live_; that is, as tracks are added to and removed
+  /// from
+  /// the media element, the list's contents change dynamically. Once you have a
+  /// reference to
+  /// the list, you can monitor it for changes to detect when new text tracks
+  /// are added or
+  /// existing ones removed.
+  ///
+  /// See
+  /// [TextTrackList events](https://developer.mozilla.org/en-US/docs/Web/API/TextTrackList#events)
+  /// to learn
+  /// more about watching for changes to a media element's track list.
   external TextTrackList get textTracks;
 }
 
@@ -1868,7 +3517,20 @@ extension type MediaError._(JSObject _) implements JSObject {
   external static int get MEDIA_ERR_NETWORK;
   external static int get MEDIA_ERR_DECODE;
   external static int get MEDIA_ERR_SRC_NOT_SUPPORTED;
+
+  /// The read-only property **`MediaError.code`** returns a numeric
+  /// value which represents the kind of error that occurred on a media element.
+  /// To get a text
+  /// string with specific diagnostic information, see [MediaError.message].
   external int get code;
+
+  /// The read-only property **`MediaError.message`** returns a
+  /// human-readable string offering specific
+  /// diagnostic details related to the error described by the `MediaError`
+  /// object,
+  /// or an empty string (`""`) if no diagnostic information can be determined
+  /// or
+  /// provided.
   external String get message;
 }
 
@@ -1889,13 +3551,20 @@ extension type AudioTrackList._(JSObject _) implements EventTarget, JSObject {
   /// specified string.
   /// This lets you find a specified track if you know its ID string.
   external AudioTrack? getTrackById(String id);
+
+  /// The read-only **[AudioTrackList]**
+  /// property **`length`** returns the number of entries in the
+  /// `AudioTrackList`, each of which is an [AudioTrack]
+  /// representing one audio track in the media element. A value of 0 indicates
+  /// that
+  /// there are no audio tracks in the media.
   external int get length;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
-  external set onaddtrack(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onaddtrack;
-  external set onremovetrack(EventHandler value);
+  external set onaddtrack(EventHandler value);
   external EventHandler get onremovetrack;
+  external set onremovetrack(EventHandler value);
 }
 
 /// The **`AudioTrack`** interface represents a single audio track from one of
@@ -1909,12 +3578,59 @@ extension type AudioTrackList._(JSObject _) implements EventTarget, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AudioTrack).
 extension type AudioTrack._(JSObject _) implements JSObject {
+  /// The **`id`** property contains a
+  /// string which uniquely identifies the track represented by the
+  /// **[AudioTrack]**.
+  ///
+  /// This ID can be used with the
+  /// [AudioTrackList.getTrackById] method to locate a specific track within
+  /// the media associated with a media element. The track ID can also be used
+  /// as the fragment of a URL that loads the specific track
+  /// (if the media supports media fragments).
   external String get id;
+
+  /// The **`kind`** property contains a
+  /// string indicating the category of audio contained in the
+  /// **[AudioTrack]**.
+  ///
+  /// The `kind` can be used
+  /// to determine the scenarios in which specific tracks should be enabled or
+  /// disabled. See
+  /// [Audio track kind strings](#audio_track_kind_strings) for a list of the
+  /// kinds available for audio tracks.
   external String get kind;
+
+  /// The read-only **[AudioTrack]**
+  /// property **`label`** returns a string specifying the audio
+  /// track's human-readable label, if one is available; otherwise, it returns
+  /// an empty
+  /// string.
   external String get label;
+
+  /// The read-only **[AudioTrack]**
+  /// property **`language`** returns a string identifying the
+  /// language used in the audio track.
+  ///
+  /// For tracks that include multiple languages
+  /// (such as a movie in English in which a few lines are spoken in other
+  /// languages), this
+  /// should be the video's primary language.
   external String get language;
-  external set enabled(bool value);
+
+  /// The **[AudioTrack]** property
+  /// **`enabled`** specifies whether or not the described audio
+  /// track is currently enabled for use. If the track is disabled by setting
+  /// `enabled` to `false`, the track is muted and does not produce
+  /// audio.
   external bool get enabled;
+  external set enabled(bool value);
+
+  /// The read-only **[AudioTrack]**
+  /// property **`sourceBuffer`** returns the
+  /// [SourceBuffer] that created the track, or null if the track was not
+  /// created by a [SourceBuffer] or the [SourceBuffer] has been
+  /// removed from the [MediaSource.sourceBuffers] attribute of its parent
+  /// media source.
   external SourceBuffer? get sourceBuffer;
 }
 
@@ -1939,14 +3655,26 @@ extension type VideoTrackList._(JSObject _) implements EventTarget, JSObject {
   /// This lets you find a specified track if
   /// you know its ID string.
   external VideoTrack? getTrackById(String id);
+
+  /// The read-only **[VideoTrackList]**
+  /// property **`length`** returns the number of entries in the
+  /// `VideoTrackList`, each of which is a [VideoTrack] representing
+  /// one video track in the media element.
+  ///
+  /// A value of 0 indicates that there are no
+  /// video tracks in the media.
   external int get length;
+
+  /// The read-only **[VideoTrackList]**
+  /// property **`selectedIndex`** returns the index of the
+  /// currently selected track, if any, or `-1` otherwise.
   external int get selectedIndex;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
-  external set onaddtrack(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onaddtrack;
-  external set onremovetrack(EventHandler value);
+  external set onaddtrack(EventHandler value);
   external EventHandler get onremovetrack;
+  external set onremovetrack(EventHandler value);
 }
 
 /// The [VideoTrack] interface represents a single video track from a `video`
@@ -1961,12 +3689,59 @@ extension type VideoTrackList._(JSObject _) implements EventTarget, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/VideoTrack).
 extension type VideoTrack._(JSObject _) implements JSObject {
+  /// The **`id`** property contains a
+  /// string which uniquely identifies the track represented by the
+  /// **[VideoTrack]**.
+  ///
+  /// This ID can be used with the
+  /// [VideoTrackList.getTrackById] method to locate a specific track within
+  /// the media associated with a media element.
+  ///
+  /// The track ID can also be used as the fragment of a URL that loads the
+  /// specific track
+  /// (if the media supports media fragments).
   external String get id;
+
+  /// The **`kind`** property contains a
+  /// string indicating the category of video contained in the
+  /// **[VideoTrack]**.
+  ///
+  /// The `kind` can be used
+  /// to determine the scenarios in which specific tracks should be enabled or
+  /// disabled. See
+  /// [Video track kind strings](#video_track_kind_strings) for a list of the
+  /// kinds available for video tracks.
   external String get kind;
+
+  /// The read-only **[VideoTrack]**
+  /// property **`label`** returns a string specifying the video
+  /// track's human-readable label, if one is available; otherwise, it returns
+  /// an empty
+  /// string.
   external String get label;
+
+  /// The read-only **[VideoTrack]**
+  /// property **`language`** returns a string identifying the
+  /// language used in the video track.
+  ///
+  /// For tracks that include multiple languages
+  /// (such as a movie in English in which a few lines are spoken in other
+  /// languages), this
+  /// should be the video's primary language.
   external String get language;
-  external set selected(bool value);
+
+  /// The **[VideoTrack]** property
+  /// **`selected`** controls whether or not a particular video
+  /// track is active.
   external bool get selected;
+  external set selected(bool value);
+
+  /// The read-only **[VideoTrack]**
+  /// property **`sourceBuffer`** returns the
+  /// [SourceBuffer] that created the track, or null if the track was not
+  /// created by a [SourceBuffer] or the [SourceBuffer] has been
+  /// removed from the [MediaSource.sourceBuffers] attribute of its parent
+  /// media source.
   external SourceBuffer? get sourceBuffer;
 }
 
@@ -2000,13 +3775,21 @@ extension type TextTrackList._(JSObject _) implements EventTarget, JSObject {
   /// specified string. This lets you find a specified track if you know its ID
   /// string.
   external TextTrack? getTrackById(String id);
+
+  /// The read-only **[TextTrackList]**
+  /// property **`length`** returns the number of entries in the
+  /// `TextTrackList`, each of which is a [TextTrack] representing
+  /// one track in the media element.
+  ///
+  /// A value of 0 indicates that there are no text
+  /// tracks in the media.
   external int get length;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
-  external set onaddtrack(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onaddtrack;
-  external set onremovetrack(EventHandler value);
+  external set onaddtrack(EventHandler value);
   external EventHandler get onremovetrack;
+  external set onremovetrack(EventHandler value);
 }
 
 /// The `TextTrack` interface—part of the API for handling WebVTT (text tracks
@@ -2025,17 +3808,98 @@ extension type TextTrack._(JSObject _) implements EventTarget, JSObject {
   /// The **`removeCue()`** method of the [TextTrack] interface removes a cue
   /// from the list of cues.
   external void removeCue(TextTrackCue cue);
+
+  /// The **`kind`** read-only property of the [TextTrack] interface returns the
+  /// kind of text track this object represents. This decides how the track will
+  /// be handled by a user agent.
   external TextTrackKind get kind;
+
+  /// The **`label`** read-only property of the [TextTrack] interface returns a
+  /// human-readable label for the text track, if it is available.
   external String get label;
+
+  /// The **`language`** read-only property of the [TextTrack] interface returns
+  /// the language of the text track.
+  ///
+  /// This uses the same values as the HTML
+  /// [`lang`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes#lang)
+  /// attribute. These values are documented in `5646, "Tags for Identifying
+  /// Languages (also known as BCP 47)"`.
   external String get language;
+
+  /// The **`id`** read-only property of the [TextTrack] interface returns the
+  /// ID of the track if it has one.
   external String get id;
+
+  /// The **`inBandMetadataTrackDispatchType`** read-only property of the
+  /// [TextTrack] interface returns the text track's in-band metadata dispatch
+  /// type of the text track represented by the [TextTrack] object.
+  ///
+  /// An in-band metadata dispatch type is a string extracted from a media
+  /// resource specifically for in-band metadata tracks. An example of a media
+  /// resource that might have such tracks is a TV station streaming a broadcast
+  /// on the web. Text Tracks may be used to include metadata for ad targeting,
+  /// additional information such as recipe data during a cooking show, or
+  /// trivia game data during a game show.
+  ///
+  /// The value of this attribute could be used to attach these tracks to
+  /// dedicated script modules as they are loaded.
   external String get inBandMetadataTrackDispatchType;
-  external set mode(TextTrackMode value);
+
+  /// The [TextTrack] interface's
+  /// **`mode`** property is a string specifying and controlling the
+  /// text track's mode: `disabled`, `hidden`, or
+  /// `showing`. You can read this value to determine the current mode,
+  /// and you can change this value to switch modes.
+  ///
+  /// Safari additionally requires the **`default`**
+  /// boolean attribute to be set to true when implementing your own video
+  /// player controls in
+  /// order for the subtitles cues to be shown.
+  ///
+  /// ### Value
+  ///
+  /// A string which indicates the track's current mode. One of:
+  ///
+  /// - `disabled`
+  ///   - : The text track is currently disabled. While the track's presence is exposed in the
+  /// DOM, the user agent is otherwise ignoring it. No cues are active, no
+  /// events are being
+  /// fired, and the user agent won't attempt to obtain the track's cues. This
+  /// is the
+  /// default value, unless the text track has the
+  /// [`default`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/track#default)
+  /// Boolean attribute is specified, in which case the default is `showing`.
+  /// - `hidden`
+  ///   - : The text track is currently active but the cues aren't being displayed. If the user
+  /// agent hasn't tried to obtain the track's cues yet, it will do so soon
+  /// (thereby
+  /// populating the track's [TextTrack.cues] property). The user agent is
+  /// keeping a list of the active cues (in the track's [TextTrack.activeCues]
+  /// property) and events are being fired at the corresponding times, even
+  /// though the text isn't being displayed.
+  /// - `showing`
+  ///   - : The text track is currently enabled and is visible. If the track's cues list hasn't
+  /// been obtained yet, it will be soon. The [TextTrack.activeCues]
+  /// list is being maintained and events are firing at the appropriate
+  /// times; the track's text is also being drawn appropriately based on the
+  /// styling and the
+  /// track's [TextTrack.kind]. This is the default value if the text
+  /// track's
+  /// [`default`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/track#default)
+  /// Boolean attribute is specified.
   external TextTrackMode get mode;
+  external set mode(TextTrackMode value);
+
+  /// The **`cues`** read-only property of the [TextTrack] interface returns a
+  /// [TextTrackCueList] object containing all of the track's cues.
   external TextTrackCueList? get cues;
+
+  /// The **`activeCues`** read-only property of the [TextTrack] interface
+  /// returns a [TextTrackCueList] object listing the currently active cues.
   external TextTrackCueList? get activeCues;
-  external set oncuechange(EventHandler value);
   external EventHandler get oncuechange;
+  external set oncuechange(EventHandler value);
   external SourceBuffer? get sourceBuffer;
 }
 
@@ -2054,6 +3918,9 @@ extension type TextTrackCueList._(JSObject _) implements JSObject {
   /// the first [VTTCue] in the list represented by the `TextTrackCueList`
   /// object whose identifier matches the value of `id`.
   external TextTrackCue? getCueById(String id);
+
+  /// The **`length`** read-only property of the [TextTrackCueList] interface
+  /// returns the number of cues in the list.
   external int get length;
 }
 
@@ -2070,19 +3937,34 @@ extension type TextTrackCueList._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/TextTrackCue).
 extension type TextTrackCue._(JSObject _) implements EventTarget, JSObject {
+  /// The **`track`** read-only property of the [TextTrackCue] interface returns
+  /// the [TextTrack] object that this cue belongs to.
   external TextTrack? get track;
-  external set id(String value);
+
+  /// The **`id`** property of the [TextTrackCue] interface returns and sets the
+  /// identifier for this cue.
   external String get id;
-  external set startTime(num value);
+  external set id(String value);
+
+  /// The **`startTime`** property of the [TextTrackCue] interface returns and
+  /// sets the start time of the cue.
   external num get startTime;
-  external set endTime(num value);
+  external set startTime(num value);
+
+  /// The **`endTime`** property of the [TextTrackCue] interface returns and
+  /// sets the end time of the cue.
   external num get endTime;
-  external set pauseOnExit(bool value);
+  external set endTime(num value);
+
+  /// The **`pauseOnExit`** property of the [TextTrackCue] interface returns or
+  /// sets the flag indicating whether playback of the media should pause when
+  /// the end of the range to which this cue applies is reached.
   external bool get pauseOnExit;
-  external set onenter(EventHandler value);
+  external set pauseOnExit(bool value);
   external EventHandler get onenter;
-  external set onexit(EventHandler value);
+  external set onenter(EventHandler value);
   external EventHandler get onexit;
+  external set onexit(EventHandler value);
 }
 
 /// When loading a media resource for use by an `audio` or `video` element, the
@@ -2107,6 +3989,9 @@ extension type TimeRanges._(JSObject _) implements JSObject {
   /// The **`end()`** method of the [TimeRanges] interface returns the time
   /// offset at which a specified time range ends.
   external num end(int index);
+
+  /// The **`TimeRanges.length`** read-only property returns the
+  /// number of ranges in the object.
   external int get length;
 }
 
@@ -2138,6 +4023,12 @@ extension type TrackEvent._(JSObject _) implements Event, JSObject {
     TrackEventInit eventInitDict,
   ]);
 
+  /// The read-only **`track`** property of
+  /// the [TrackEvent] interface specifies the media track object to which the
+  /// event applies.
+  ///
+  /// The media track will be an [AudioTrack],
+  /// [VideoTrack], or [TextTrack] object.
   external JSObject? get track;
 }
 extension type TrackEventInit._(JSObject _) implements EventInit, JSObject {
@@ -2148,8 +4039,8 @@ extension type TrackEventInit._(JSObject _) implements EventInit, JSObject {
     JSObject? track,
   });
 
-  external set track(JSObject? value);
   external JSObject? get track;
+  external set track(JSObject? value);
 }
 
 /// The **`HTMLMapElement`** interface provides special properties and methods
@@ -2165,8 +4056,15 @@ extension type HTMLMapElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLMapElement] using the tag 'map'.
   HTMLMapElement() : _ = document.createElement('map');
 
-  external set name(String value);
+  /// The **`name`** property of the [HTMLMapElement] represents the unique name
+  /// `<map>` element.
+  /// Its value can be used with the `useMap` attribute of the `img` element to
+  /// reference a `<map>` element.
+  ///
+  /// If an `id` attribute is set on the `map` element, then this `name`
+  /// property should be the same as this `id`.
   external String get name;
+  external set name(String value);
   external HTMLCollection get areas;
 }
 
@@ -2183,46 +4081,159 @@ extension type HTMLAreaElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLAreaElement] using the tag 'area'.
   HTMLAreaElement() : _ = document.createElement('area');
 
-  external set alt(String value);
   external String get alt;
-  external set coords(String value);
+  external set alt(String value);
   external String get coords;
-  external set shape(String value);
+  external set coords(String value);
   external String get shape;
-  external set target(String value);
+  external set shape(String value);
+
+  /// The **`target`** property of the [HTMLAreaElement] interface is a string
+  /// that indicates where to display the linked resource.
+  ///
+  /// It reflects the
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/area#target)
+  /// attribute of the `area` element.
   external String get target;
-  external set download(String value);
+  external set target(String value);
   external String get download;
-  external set ping(String value);
+  external set download(String value);
+
+  /// The **`ping`** property of the [HTMLAreaElement] interface is a
+  /// space-separated list of URLs. When the link is followed, the browser will
+  /// send `POST` requests with the body PING to the URLs.
+  ///
+  /// It reflects the `ping` attribute of the `area` element.
+  ///
+  /// > **Note:** This property is not effective in Firefox and its usage may be
+  /// > limited due to privacy and security concerns.
   external String get ping;
-  external set rel(String value);
+  external set ping(String value);
+
+  /// The **`HTMLAreaElement.rel`** property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a string containing a space-separated list of link types
+  /// indicating the relationship between the resource represented by the `area`
+  /// element and the current document.
   external String get rel;
+  external set rel(String value);
+
+  /// The **`HTMLAreaElement.relList`** read-only property reflects the
+  /// [`rel`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel)
+  /// attribute. It is a live [DOMTokenList] containing the set of link types
+  /// indicating the relationship between the resource represented by the `area`
+  /// element and the current document.
+  ///
+  /// The property itself is read-only, meaning you can't substitute the
+  /// [DOMTokenList] by another one, but the content of the returned list can be
+  /// changed.
   external DOMTokenList get relList;
-  external set referrerPolicy(String value);
+
+  /// The
+  /// **`HTMLAreaElement.referrerPolicy`**
+  /// property reflect the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/area#referrerpolicy)
+  /// attribute of the
+  /// `area` element defining which referrer is sent when fetching the
+  /// resource.
   external String get referrerPolicy;
-  external set noHref(bool value);
+  external set referrerPolicy(String value);
   external bool get noHref;
-  external set href(String value);
+  external set noHref(bool value);
+
+  /// The **`HTMLAreaElement.href`** property is a
+  /// that returns a string containing the whole URL, and allows
+  /// the href to be updated.
   external String get href;
+  external set href(String value);
+
+  /// The
+  /// **`HTMLAreaElement.origin`** read-only property is a
+  /// string containing the Unicode serialization of the origin of the
+  /// represented URL.
+  ///
+  /// That is:
+  ///
+  /// - for URL using the `http` or `https`, the scheme followed by
+  /// `'://'`, followed by the domain, followed by `':'`, followed by
+  /// the port (the default port, `80` and `443` respectively, if
+  /// explicitly specified);
+  /// - for URL using `file:` scheme, the value is browser dependent;
+  /// - for URL using the `blob:` scheme, the origin of the URL following
+  /// `blob:`. E.g `"blob:https://mozilla.org"` will have
+  /// `"https://mozilla.org".`
   external String get origin;
-  external set protocol(String value);
+
+  /// The
+  /// **`HTMLAreaElement.protocol`**
+  /// property is a string representing the protocol scheme of the URL,
+  /// including the final `':'`.
   external String get protocol;
-  external set username(String value);
+  external set protocol(String value);
+
+  /// The **`HTMLAreaElement.username`** property is a
+  /// string containing the username specified before the domain name.
   external String get username;
-  external set password(String value);
+  external set username(String value);
+
+  /// The **`HTMLAreaElement.password`** property is a
+  /// string containing the password specified before the domain name.
+  ///
+  /// If it is set without first setting the
+  /// [`username`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLAreaElement/username)
+  /// property, it silently fails.
   external String get password;
-  external set host(String value);
+  external set password(String value);
+
+  /// The **`HTMLAreaElement.host`** property is a
+  /// string containing the host, that is the _hostname_, and then,
+  /// if the _port_ of the URL is nonempty, a `':'`, and the _port_
+  /// of the URL.
   external String get host;
-  external set hostname(String value);
+  external set host(String value);
+
+  /// The **`HTMLAreaElement.hostname`** property is a string containing the
+  /// domain of the URL.
   external String get hostname;
-  external set port(String value);
+  external set hostname(String value);
+
+  /// The **`HTMLAreaElement.port`** property is a
+  /// string containing the port number of the URL. If the URL does not
+  /// contain an explicit port number, it will be set to `''`.
   external String get port;
-  external set pathname(String value);
+  external set port(String value);
+
+  /// The **`HTMLAreaElement.pathname`** property is a
+  /// string containing an initial `'/'` followed by the path of
+  /// the URL not including the query string or fragment (or the empty string if
+  /// there is no
+  /// path).
   external String get pathname;
-  external set search(String value);
+  external set pathname(String value);
+
+  /// The **`HTMLAreaElement.search`** property is a search
+  /// string, also called a _query string_, that is a string containing
+  /// a `'?'` followed by the parameters of the URL.
+  ///
+  /// Modern browsers provide
+  /// [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/get#examples)
+  /// and
+  /// [`URL.searchParams`](/en-US/docs/Web/API/URL/searchParams#examples)
+  /// to make it easy to parse out the parameters from the querystring.
   external String get search;
-  external set hash(String value);
+  external set search(String value);
+
+  /// The
+  /// **`HTMLAreaElement.hash`** property returns a
+  /// string containing a `'#'` followed by the fragment
+  /// identifier of the URL.
+  ///
+  /// The fragment is not
+  /// [URL decoded](https://en.wikipedia.org/wiki/URL_encoding). If the URL does
+  /// not
+  /// have a fragment identifier, this property contains an empty string, `""`.
   external String get hash;
+  external set hash(String value);
 }
 
 /// The **`HTMLTableElement`** interface provides special properties and methods
@@ -2323,32 +4334,115 @@ extension type HTMLTableElement._(JSObject _) implements HTMLElement, JSObject {
   /// The **`HTMLTableElement.deleteRow()`** method removes a
   /// specific row (`tr`) from a given `table`.
   external void deleteRow(int index);
-  external set caption(HTMLTableCaptionElement? value);
+
+  /// The **`HTMLTableElement.caption`** property represents the
+  /// table caption. If no caption element is associated with the table, this
+  /// property is
+  /// `null`.
   external HTMLTableCaptionElement? get caption;
-  external set tHead(HTMLTableSectionElement? value);
+  external set caption(HTMLTableCaptionElement? value);
+
+  /// The **`HTMLTableElement.tHead`** represents the
+  /// `thead` element of a `table`. Its value will be
+  /// `null` if there is no such element.
   external HTMLTableSectionElement? get tHead;
-  external set tFoot(HTMLTableSectionElement? value);
+  external set tHead(HTMLTableSectionElement? value);
+
+  /// The **`HTMLTableElement.tFoot`** property represents the
+  /// `tfoot` element of a `table`. Its value will be
+  /// `null` if there is no such element.
   external HTMLTableSectionElement? get tFoot;
+  external set tFoot(HTMLTableSectionElement? value);
+
+  /// The **`HTMLTableElement.tBodies`** read-only property returns a
+  /// live [HTMLCollection] of the bodies in a `table`.
+  ///
+  /// Although the property is read-only, the returned object is live and allows
+  /// the
+  /// modification of its content.
+  ///
+  /// The collection returned includes implicit `tbody` elements. For
+  /// example:
+  ///
+  /// ```html
+  /// <table>
+  ///   <tr>
+  ///     <td>cell one</td>
+  ///   </tr>
+  /// </table>
+  /// ```
+  ///
+  /// The HTML DOM generated from the above HTML will have a `tbody` element
+  /// even though the tags are not included in the source HTML.
   external HTMLCollection get tBodies;
+
+  /// The read-only [HTMLTableElement]
+  /// property **`rows`** returns a live
+  /// [HTMLCollection] of all the rows in the table, including the rows
+  /// contained within any `thead`, `tfoot`, and
+  /// `tbody` elements.
+  ///
+  /// Although the property itself is read-only, the returned object is live and
+  /// allows the
+  /// modification of its content.
   external HTMLCollection get rows;
-  external set align(String value);
+
+  /// The **`HTMLTableElement.align`** property represents the
+  /// alignment of the table.
   external String get align;
-  external set border(String value);
+  external set align(String value);
+
+  /// The **`HTMLTableElement.border`** property represents the
+  /// border width of the `table` element.
   external String get border;
-  external set frame(String value);
+  external set border(String value);
+
+  /// The [HTMLTableElement] interface's **`frame`**
+  /// property is a string that indicates which of the table's exterior borders
+  /// should be
+  /// drawn.
   external String get frame;
-  external set rules(String value);
+  external set frame(String value);
+
+  /// The **`HTMLTableElement.rules`** property indicates which cell
+  /// borders to render in the table.
   external String get rules;
-  external set summary(String value);
+  external set rules(String value);
+
+  /// The **`HTMLTableElement.summary`** property represents the
+  /// table description.
   external String get summary;
-  external set width(String value);
+  external set summary(String value);
+
+  /// The **`HTMLTableElement.width`** property represents the
+  /// desired width of the table.
   external String get width;
-  external set bgColor(String value);
+  external set width(String value);
+
+  /// The **`bgcolor`** property of the [HTMLTableElement] represents the
+  /// background color of the table.
+  ///
+  /// > **Note:** Do not use this attribute anymore. Instead, use the CSS
+  /// > property by modifying the element's
+  /// > [`style`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/style)
+  /// > attribute or using a style rule.
   external String get bgColor;
-  external set cellPadding(String value);
+  external set bgColor(String value);
+
+  /// The **`HTMLTableElement.cellPadding`** property represents the
+  /// padding around the individual cells of the table.
   external String get cellPadding;
-  external set cellSpacing(String value);
+  external set cellPadding(String value);
+
+  /// While you should instead use the CSS
+  /// property, the obsolete [HTMLTableElement]
+  /// interface's **`cellSpacing`** property represents the spacing
+  /// around the individual `th` and `td` elements
+  /// representing a table's cells. Any two cells are separated by the sum of
+  /// the
+  /// `cellSpacing` of each of the two cells.
   external String get cellSpacing;
+  external set cellSpacing(String value);
 }
 
 /// The **`HTMLTableCaptionElement`** interface provides special properties
@@ -2364,8 +4458,8 @@ extension type HTMLTableCaptionElement._(JSObject _)
   /// Creates an [HTMLTableCaptionElement] using the tag 'caption'.
   HTMLTableCaptionElement() : _ = document.createElement('caption');
 
-  external set align(String value);
   external String get align;
+  external set align(String value);
 }
 
 /// The **`HTMLTableColElement`** interface provides properties for manipulating
@@ -2383,18 +4477,18 @@ extension type HTMLTableColElement._(JSObject _)
   /// Creates an [HTMLTableColElement] using the tag 'col'.
   HTMLTableColElement.col() : _ = document.createElement('col');
 
-  external set span(int value);
   external int get span;
-  external set align(String value);
+  external set span(int value);
   external String get align;
-  external set ch(String value);
+  external set align(String value);
   external String get ch;
-  external set chOff(String value);
+  external set ch(String value);
   external String get chOff;
-  external set vAlign(String value);
+  external set chOff(String value);
   external String get vAlign;
-  external set width(String value);
+  external set vAlign(String value);
   external String get width;
+  external set width(String value);
 }
 
 /// The **`HTMLTableSectionElement`** interface provides special properties and
@@ -2421,14 +4515,14 @@ extension type HTMLTableSectionElement._(JSObject _)
   external HTMLTableRowElement insertRow([int index]);
   external void deleteRow(int index);
   external HTMLCollection get rows;
-  external set align(String value);
   external String get align;
-  external set ch(String value);
+  external set align(String value);
   external String get ch;
-  external set chOff(String value);
+  external set ch(String value);
   external String get chOff;
-  external set vAlign(String value);
+  external set chOff(String value);
   external String get vAlign;
+  external set vAlign(String value);
 }
 
 /// The **`HTMLTableRowElement`** interface provides special properties and
@@ -2459,19 +4553,28 @@ extension type HTMLTableRowElement._(JSObject _)
   /// > element though.
   external HTMLTableCellElement insertCell([int index]);
   external void deleteCell(int index);
+
+  /// The **`HTMLTableRowElement.rowIndex`** read-only property
+  /// represents the position of a row in relation to the whole `table`.
+  ///
+  /// Even when the `thead`, `tbody`, and
+  /// `tfoot` elements are out of order in the HTML, browsers render the
+  /// table in the right order. Therefore the rows count from `<thead>` to
+  /// `<tbody>`, from `<tbody>` to
+  /// `<tfoot>`.
   external int get rowIndex;
   external int get sectionRowIndex;
   external HTMLCollection get cells;
-  external set align(String value);
   external String get align;
-  external set ch(String value);
+  external set align(String value);
   external String get ch;
-  external set chOff(String value);
+  external set ch(String value);
   external String get chOff;
-  external set vAlign(String value);
+  external set chOff(String value);
   external String get vAlign;
-  external set bgColor(String value);
+  external set vAlign(String value);
   external String get bgColor;
+  external set bgColor(String value);
 }
 
 /// The **`HTMLTableCellElement`** interface provides special properties and
@@ -2492,35 +4595,35 @@ extension type HTMLTableCellElement._(JSObject _)
   /// Creates an [HTMLTableCellElement] using the tag 'th'.
   HTMLTableCellElement.th() : _ = document.createElement('th');
 
-  external set colSpan(int value);
   external int get colSpan;
-  external set rowSpan(int value);
+  external set colSpan(int value);
   external int get rowSpan;
-  external set headers(String value);
+  external set rowSpan(int value);
   external String get headers;
+  external set headers(String value);
   external int get cellIndex;
-  external set scope(String value);
   external String get scope;
-  external set abbr(String value);
+  external set scope(String value);
   external String get abbr;
-  external set align(String value);
+  external set abbr(String value);
   external String get align;
-  external set axis(String value);
+  external set align(String value);
   external String get axis;
-  external set height(String value);
+  external set axis(String value);
   external String get height;
-  external set width(String value);
+  external set height(String value);
   external String get width;
-  external set ch(String value);
+  external set width(String value);
   external String get ch;
-  external set chOff(String value);
+  external set ch(String value);
   external String get chOff;
-  external set noWrap(bool value);
+  external set chOff(String value);
   external bool get noWrap;
-  external set vAlign(String value);
+  external set noWrap(bool value);
   external String get vAlign;
-  external set bgColor(String value);
+  external set vAlign(String value);
   external String get bgColor;
+  external set bgColor(String value);
 }
 
 /// The **`HTMLFormElement`** interface represents a `form` element in the DOM.
@@ -2592,28 +4695,113 @@ extension type HTMLFormElement._(JSObject _) implements HTMLElement, JSObject {
   /// events are fired for
   /// each invalid child and validation problems are reported to the user.
   external bool reportValidity();
-  external set acceptCharset(String value);
+
+  /// The **`HTMLFormElement.acceptCharset`** property represents a
+  /// list of the supported
+  /// [character encodings](https://developer.mozilla.org/en-US/docs/Glossary/Character_encoding)
+  /// for the given `form` element. This list can be
+  /// comma-separated or space-separated.
   external String get acceptCharset;
-  external set action(String value);
+  external set acceptCharset(String value);
+
+  /// The **`HTMLFormElement.action`** property represents the action
+  /// of the `form` element.
+  ///
+  /// The action of a form is the program that is executed on the server when
+  /// the form is
+  /// submitted. This property can be retrieved or set.
   external String get action;
-  external set autocomplete(String value);
+  external set action(String value);
   external String get autocomplete;
-  external set enctype(String value);
+  external set autocomplete(String value);
+
+  /// The **`HTMLFormElement.enctype`** property is the
+  /// [MIME type](https://en.wikipedia.org/wiki/Mime_type) of content that is
+  /// used
+  /// to submit the form to the server. Possible values are:
+  ///
+  /// - `application/x-www-form-urlencoded`: The initial default type.
+  /// - `multipart/form-data`: The type that allows file `input`
+  /// element(s) to upload file data.
+  /// - `text/plain`: Ambiguous format, human-readable content not reliably
+  ///   interpretable by computer.
+  ///
+  /// This value can be overridden by a
+  /// [`formenctype`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#formenctype)
+  /// attribute
+  /// on a `button` or `input` element.
   external String get enctype;
-  external set encoding(String value);
+  external set enctype(String value);
+
+  /// The **`HTMLFormElement.encoding`** property is an alternative name for the
+  /// [HTMLFormElement.enctype] element on the DOM [HTMLFormElement] object.
   external String get encoding;
-  external set method(String value);
+  external set encoding(String value);
+
+  /// The **`HTMLFormElement.method`** property represents the
+  /// method used to submit the `form`.
+  ///
+  /// Unless explicitly specified, the default method is 'get'.
   external String get method;
-  external set name(String value);
+  external set method(String value);
+
+  /// The **`HTMLFormElement.name`** property represents the name of
+  /// the current `form` element as a string.
+  ///
+  /// If your `Form` element contains an element named _name_ then
+  /// that element overrides the `form.name` property, so that you can't access
+  /// it.
   external String get name;
-  external set noValidate(bool value);
+  external set name(String value);
   external bool get noValidate;
-  external set target(String value);
+  external set noValidate(bool value);
+
+  /// The **`target`** property of the [HTMLFormElement]
+  /// interface represents the target of the form's action (i.e., the frame in
+  /// which to render
+  /// its output).
   external String get target;
-  external set rel(String value);
+  external set target(String value);
   external String get rel;
+  external set rel(String value);
   external DOMTokenList get relList;
+
+  /// The [HTMLFormElement] property
+  /// **`elements`** returns an
+  /// [HTMLFormControlsCollection] listing all the form controls contained in
+  /// the `form` element.
+  ///
+  /// Independently, you can obtain just the
+  /// number of form controls using the [HTMLFormElement.length]
+  /// property.
+  ///
+  /// You can access a particular form control in the returned collection by
+  /// using either an
+  /// index or the element's `name` or `id` attributes.
+  ///
+  /// Prior to HTML 5, the returned object was an [HTMLCollection], on which
+  /// `HTMLFormControlsCollection` is based.
+  ///
+  /// > **Note:** Similarly, you can get a list of all of the forms contained
+  /// > within a given document using the document's [Document.forms] property.
   external HTMLFormControlsCollection get elements;
+
+  /// The **`HTMLFormElement.length`**
+  /// read-only property returns the number of controls in the `form`
+  /// element.
+  ///
+  /// You can access the list of the form's controls using the
+  /// [HTMLFormElement.elements] property.
+  ///
+  /// This includes both elements that are descendants of the `<form>`
+  /// element as well as elements that are made members of the form using their
+  /// `form` property.
+  ///
+  /// Elements that are considered for this property are: `button`,
+  /// `fieldset`, `input` (with the exception
+  /// that any whose type is "image" are omitted for historical reasons),
+  /// `object`, `output`, `select`,
+  /// and `textarea`.
   external int get length;
 }
 
@@ -2629,9 +4817,30 @@ extension type HTMLLabelElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLLabelElement] using the tag 'label'.
   HTMLLabelElement() : _ = document.createElement('label');
 
+  /// The read-only **`HTMLLabelElement.form`** property returns an
+  /// [HTMLFormElement] object which represents the form of which the label's
+  /// associated control is a part, or null if there is either no associated
+  /// control, or if
+  /// that control isn't in a form.
+  ///
+  /// This property is just a shortcut for `HTMLLabelElement.control.form`.
   external HTMLFormElement? get form;
-  external set htmlFor(String value);
+
+  /// The **`HTMLLabelElement.htmlFor`** property reflects the value
+  /// of the
+  /// [`for`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/label#for)
+  /// content property. That means that this
+  /// script-accessible property is used to set and read the value of the
+  /// content property
+  /// `for`, which is the ID of the label's associated control element.
   external String get htmlFor;
+  external set htmlFor(String value);
+
+  /// The read-only **`HTMLLabelElement.control`** property returns a
+  /// reference to the control (in the form of an object of type [HTMLElement]
+  /// or
+  /// one of its derivatives) with which the `label` element is associated,
+  /// or `null` if the label isn't associated with a control.
   external HTMLElement? get control;
 }
 
@@ -2960,97 +5169,213 @@ extension type HTMLInputElement._(JSObject _) implements HTMLElement, JSObject {
   /// More generally, this method should ideally display the picker for any
   /// input element on the platform that has a picker.
   external void showPicker();
-  external set webkitdirectory(bool value);
+
+  /// The **`HTMLInputElement.webkitdirectory`** is a property
+  /// that reflects the
+  /// [`webkitdirectory`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#webkitdirectory)
+  /// HTML attribute
+  /// and indicates that the `input` element should let the user select
+  /// directories instead of files.
+  /// When a directory is selected, the directory and its entire hierarchy of
+  /// contents are included in the set of selected items.
+  /// The selected file system entries can be obtained using the
+  /// [HTMLInputElement.webkitEntries] property.
+  ///
+  /// > **Note:** This property is called `webkitEntries` in the specification
+  /// > due to its
+  /// > origins as a Google Chrome-specific API. It's likely to be renamed
+  /// > someday.
   external bool get webkitdirectory;
+  external set webkitdirectory(bool value);
+
+  /// The read-only **`webkitEntries`**
+  /// property of the [HTMLInputElement] interface contains an array of file
+  /// system entries (as objects based on [FileSystemEntry]) representing files
+  /// and/or directories selected by the user using an `input` element of
+  /// type `file`, but only if that selection was made using drag-and-drop:
+  /// selecting a file in the dialog will leave the property empty.
+  ///
+  /// The array can only contain directories if the
+  /// [HTMLInputElement.webkitdirectory] property is
+  /// `true`. This means the `<input>` element was configured to
+  /// let the user choose directories.
+  ///
+  /// > **Note:** This property is called `webkitEntries` in the specification
+  /// > due to its
+  /// > origins as a Google Chrome-specific API. It's likely to be renamed
+  /// > someday.
   external JSArray<FileSystemEntry> get webkitEntries;
-  external set accept(String value);
   external String get accept;
-  external set alt(String value);
+  external set accept(String value);
   external String get alt;
-  external set autocomplete(String value);
+  external set alt(String value);
   external String get autocomplete;
-  external set defaultChecked(bool value);
+  external set autocomplete(String value);
   external bool get defaultChecked;
-  external set checked(bool value);
+  external set defaultChecked(bool value);
   external bool get checked;
-  external set dirName(String value);
+  external set checked(bool value);
   external String get dirName;
-  external set disabled(bool value);
+  external set dirName(String value);
+
+  /// The **`HTMLInputElement.disabled`** property is a boolean value that
+  /// reflects the
+  /// [`disabled`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#disabled)
+  /// HTML attribute, which indicates whether the control is disabled. If it is
+  /// disabled, it does not accept clicks. A disabled element is unusable and
+  /// un-clickable.
   external bool get disabled;
+  external set disabled(bool value);
   external HTMLFormElement? get form;
-  external set files(FileList? value);
-  external FileList? get files;
-  external set formAction(String value);
+
+  /// The **`HTMLInputElement.files`** property allows you to access the
+  /// [FileList] selected with the [`<input
+  /// type="file">`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file)
+  /// element.
+  external FileList? get files;
+  external set files(FileList? value);
   external String get formAction;
-  external set formEnctype(String value);
+  external set formAction(String value);
   external String get formEnctype;
-  external set formMethod(String value);
+  external set formEnctype(String value);
   external String get formMethod;
-  external set formNoValidate(bool value);
+  external set formMethod(String value);
   external bool get formNoValidate;
-  external set formTarget(String value);
+  external set formNoValidate(bool value);
   external String get formTarget;
-  external set height(int value);
+  external set formTarget(String value);
   external int get height;
-  external set indeterminate(bool value);
+  external set height(int value);
   external bool get indeterminate;
+  external set indeterminate(bool value);
   external HTMLDataListElement? get list;
-  external set max(String value);
   external String get max;
-  external set maxLength(int value);
+  external set max(String value);
   external int get maxLength;
-  external set min(String value);
+  external set maxLength(int value);
   external String get min;
-  external set minLength(int value);
+  external set min(String value);
   external int get minLength;
-  external set multiple(bool value);
+  external set minLength(int value);
+
+  /// The **`HTMLInputElement.multiple`** property indicates if an input can
+  /// have more than one value. Firefox currently only supports `multiple` for
+  /// `<input type="file">`.
   external bool get multiple;
-  external set name(String value);
+  external set multiple(bool value);
   external String get name;
-  external set pattern(String value);
+  external set name(String value);
   external String get pattern;
-  external set placeholder(String value);
+  external set pattern(String value);
   external String get placeholder;
-  external set readOnly(bool value);
+  external set placeholder(String value);
   external bool get readOnly;
-  external set required(bool value);
+  external set readOnly(bool value);
   external bool get required;
-  external set size(int value);
+  external set required(bool value);
   external int get size;
-  external set src(String value);
+  external set size(int value);
   external String get src;
-  external set step(String value);
+  external set src(String value);
   external String get step;
-  external set type(String value);
+  external set step(String value);
+
+  /// The **`type`** property of the [HTMLInputElement] interface indicates the
+  /// kind of data allowed in the `input` element, or example a number, a date,
+  /// or an email. Browsers will select the appropriate widget and behavior to
+  /// help users to enter a valid value.
+  ///
+  /// It reflects the
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#type)
+  /// attribute of the `input` element.
   external String get type;
-  external set defaultValue(String value);
+  external set type(String value);
   external String get defaultValue;
-  external set value(String value);
+  external set defaultValue(String value);
   external String get value;
-  external set valueAsDate(JSObject? value);
+  external set value(String value);
   external JSObject? get valueAsDate;
-  external set valueAsNumber(num value);
+  external set valueAsDate(JSObject? value);
   external num get valueAsNumber;
-  external set width(int value);
+  external set valueAsNumber(num value);
   external int get width;
+  external set width(int value);
   external bool get willValidate;
   external ValidityState get validity;
   external String get validationMessage;
+
+  /// The **`HTMLInputElement.labels`** read-only property returns a
+  /// [NodeList] of the `label` elements associated with the
+  /// `input` element, if the element is not hidden. If the element has the
+  /// type `hidden`, the property returns `null`.
   external NodeList? get labels;
-  external set selectionStart(int? value);
+
+  /// The **`selectionStart`** property of the [HTMLInputElement] interface is a
+  /// number that represents the beginning index of the selected text. When
+  /// nothing is selected, then returns the position of the text input cursor
+  /// (caret) inside of the `<input>` element.
+  ///
+  /// > **Note:** According to the
+  /// > [WHATWG forms spec](https://html.spec.whatwg.org/multipage/forms.html#concept-input-apply)
+  /// > `selectionStart` property applies only to inputs of types text, search,
+  /// > URL, tel, and password. In modern browsers, throws an exception while
+  /// > setting `selectionStart` property on the rest of input types.
+  /// > Additionally, this property returns `null` while accessing
+  /// > `selectionStart` property on non-text input elements.
+  ///
+  /// If `selectionStart` is greater than `selectionEnd`, then both are
+  /// treated as the value of `selectionEnd`.
   external int? get selectionStart;
-  external set selectionEnd(int? value);
+  external set selectionStart(int? value);
+
+  /// The **`selectionEnd`** property of the [HTMLInputElement] interface is a
+  /// number that represents the end index of the selected text. When there is
+  /// no selection, this returns the offset of the character immediately
+  /// following the current text input cursor position.
+  ///
+  /// > **Note:** According to the
+  /// > [WHATWG forms spec](https://html.spec.whatwg.org/multipage/forms.html#concept-input-apply)
+  /// > `selectionEnd` property applies only to inputs of types text, search,
+  /// > URL, tel, and password. In modern browsers, throws an exception while
+  /// > setting `selectionEnd` property on the rest of input types.
+  /// > Additionally, this property returns `null` while accessing
+  /// > `selectionEnd` property on non-text input elements.
+  ///
+  /// If `selectionEnd` is less than `selectionStart`, then both are
+  /// treated as the value of `selectionEnd`.
   external int? get selectionEnd;
-  external set selectionDirection(String? value);
+  external set selectionEnd(int? value);
+
+  /// The **`selectionDirection`** property of the [HTMLInputElement] interface
+  /// is a string that indicates the direction in which the user is selecting
+  /// the text.
   external String? get selectionDirection;
-  external set align(String value);
+  external set selectionDirection(String? value);
   external String get align;
-  external set useMap(String value);
+  external set align(String value);
   external String get useMap;
-  external set popoverTargetElement(Element? value);
+  external set useMap(String value);
+
+  /// The **`popoverTargetElement`** property of the [HTMLInputElement]
+  /// interface gets and sets the popover element to control via an `input`
+  /// element of `type="button"`.
+  ///
+  /// It is the JavaScript equivalent of the
+  /// [`popovertarget`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#popovertarget)
+  /// HTML attribute.
   external Element? get popoverTargetElement;
-  external set popoverTargetAction(String value);
+  external set popoverTargetElement(Element? value);
+
+  /// The **`popoverTargetAction`** property of the [HTMLInputElement] interface
+  /// gets and sets the action to be performed (`"hide"`, `"show"`, or
+  /// `"toggle"`) on a popover element being controlled by an `input` element of
+  /// `type="button"`.
+  ///
+  /// It reflects the value of the
+  /// [`popovertargetaction`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#popovertargetaction)
+  /// HTML attribute.
   external String get popoverTargetAction;
+  external set popoverTargetAction(String value);
 }
 
 /// The **`HTMLButtonElement`** interface provides properties and methods
@@ -3069,33 +5394,62 @@ extension type HTMLButtonElement._(JSObject _)
   external bool checkValidity();
   external bool reportValidity();
   external void setCustomValidity(String error);
-  external set disabled(bool value);
+
+  /// The **`HTMLButtonElement.disabled`** property indicates whether the
+  /// control is disabled, meaning that it does not accept any clicks.
   external bool get disabled;
+  external set disabled(bool value);
   external HTMLFormElement? get form;
-  external set formAction(String value);
   external String get formAction;
-  external set formEnctype(String value);
+  external set formAction(String value);
   external String get formEnctype;
-  external set formMethod(String value);
+  external set formEnctype(String value);
   external String get formMethod;
-  external set formNoValidate(bool value);
+  external set formMethod(String value);
   external bool get formNoValidate;
-  external set formTarget(String value);
+  external set formNoValidate(bool value);
   external String get formTarget;
-  external set name(String value);
+  external set formTarget(String value);
   external String get name;
-  external set type(String value);
+  external set name(String value);
+
+  /// The **`type`** property of the [HTMLButtonElement] interface is a string
+  /// that indicates the behavior type of the `button` element.
+  ///
+  /// It reflects the
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#type)
+  /// attribute of the `button` element.
   external String get type;
-  external set value(String value);
+  external set type(String value);
   external String get value;
+  external set value(String value);
   external bool get willValidate;
   external ValidityState get validity;
   external String get validationMessage;
+
+  /// The **`HTMLButtonElement.labels`** read-only property returns a
+  /// [NodeList] of the `label` elements associated with the
+  /// `button` element.
   external NodeList get labels;
-  external set popoverTargetElement(Element? value);
+
+  /// The **`popoverTargetElement`** property of the [HTMLButtonElement]
+  /// interface gets and sets the popover element to control via a button.
+  ///
+  /// It is the JavaScript equivalent of the
+  /// [`popovertarget`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#popovertarget)
+  /// HTML attribute.
   external Element? get popoverTargetElement;
-  external set popoverTargetAction(String value);
+  external set popoverTargetElement(Element? value);
+
+  /// The **`popoverTargetAction`** property of the [HTMLButtonElement]
+  /// interface gets and sets the action to be performed (`"hide"`, `"show"`, or
+  /// `"toggle"`) on a popover element being controlled by a button.
+  ///
+  /// It reflects the value of the
+  /// [`popovertargetaction`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#popovertargetaction)
+  /// HTML attribute.
   external String get popoverTargetAction;
+  external set popoverTargetAction(String value);
 }
 
 /// The **`HTMLSelectElement`** interface represents a `select` HTML Element.
@@ -3168,31 +5522,68 @@ extension type HTMLSelectElement._(JSObject _)
   /// is selected, but can be triggered from a button press or other user
   /// interaction.
   external void showPicker();
-  external set autocomplete(String value);
   external String get autocomplete;
-  external set disabled(bool value);
+  external set autocomplete(String value);
+
+  /// The **`HTMLSelectElement.disabled`** property is a boolean value that
+  /// reflects the
+  /// [`disabled`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/select#disabled)
+  /// HTML attribute, which indicates whether the control is disabled. If it is
+  /// disabled, it
+  /// does not accept clicks. A disabled element is unusable and un-clickable.
   external bool get disabled;
+  external set disabled(bool value);
+
+  /// The **`HTMLSelectElement.form`** read-only property returns a
+  /// [HTMLFormElement] representing the form that this element is associated
+  /// with. If the element is not associated with a `form` element, then
+  /// it returns `null`.
   external HTMLFormElement? get form;
-  external set multiple(bool value);
   external bool get multiple;
-  external set name(String value);
+  external set multiple(bool value);
   external String get name;
-  external set required(bool value);
+  external set name(String value);
   external bool get required;
-  external set size(int value);
+  external set required(bool value);
   external int get size;
+  external set size(int value);
+
+  /// The **`HTMLSelectElement.type`**
+  /// read-only property returns the form control's `type`.
   external String get type;
+
+  /// The **`HTMLSelectElement.options`** read-only property returns
+  /// a [HTMLOptionsCollection] of the `option` elements
+  /// contained by the `select` element.
   external HTMLOptionsCollection get options;
-  external set length(int value);
   external int get length;
+  external set length(int value);
+
+  /// The **read-only** [HTMLSelectElement] property
+  /// **`selectedOptions`** contains a list of the
+  /// `option` elements contained within the `select`
+  /// element that are currently selected. The list of selected options is an
+  /// [HTMLCollection] object with one entry per currently selected option.
+  ///
+  /// An option is considered selected if it has an [HTMLOptionElement.selected]
+  /// attribute.
   external HTMLCollection get selectedOptions;
-  external set selectedIndex(int value);
+
+  /// The **`HTMLSelectElement.selectedIndex`** property is a
+  /// `long` that reflects the index of the first or last selected
+  /// `option` element, depending on the value of `multiple`. The
+  /// value `-1` indicates that no element is selected.
   external int get selectedIndex;
-  external set value(String value);
+  external set selectedIndex(int value);
   external String get value;
+  external set value(String value);
   external bool get willValidate;
   external ValidityState get validity;
   external String get validationMessage;
+
+  /// The **`HTMLSelectElement.labels`** read-only property returns a
+  /// [NodeList] of the `label` elements associated with the
+  /// `select` element.
   external NodeList get labels;
 }
 
@@ -3226,10 +5617,10 @@ extension type HTMLOptGroupElement._(JSObject _)
   /// Creates an [HTMLOptGroupElement] using the tag 'optgroup'.
   HTMLOptGroupElement() : _ = document.createElement('optgroup');
 
-  external set disabled(bool value);
   external bool get disabled;
-  external set label(String value);
+  external set disabled(bool value);
   external String get label;
+  external set label(String value);
 }
 
 /// The **`HTMLOptionElement`** interface represents `option` elements and
@@ -3244,19 +5635,19 @@ extension type HTMLOptionElement._(JSObject _)
   /// Creates an [HTMLOptionElement] using the tag 'option'.
   HTMLOptionElement() : _ = document.createElement('option');
 
-  external set disabled(bool value);
   external bool get disabled;
+  external set disabled(bool value);
   external HTMLFormElement? get form;
-  external set label(String value);
   external String get label;
-  external set defaultSelected(bool value);
+  external set label(String value);
   external bool get defaultSelected;
-  external set selected(bool value);
+  external set defaultSelected(bool value);
   external bool get selected;
-  external set value(String value);
+  external set selected(bool value);
   external String get value;
-  external set text(String value);
+  external set value(String value);
   external String get text;
+  external set text(String value);
   external int get index;
 }
 
@@ -3287,47 +5678,54 @@ extension type HTMLTextAreaElement._(JSObject _)
     int end, [
     String direction,
   ]);
-  external set autocomplete(String value);
   external String get autocomplete;
-  external set cols(int value);
+  external set autocomplete(String value);
   external int get cols;
-  external set dirName(String value);
+  external set cols(int value);
   external String get dirName;
-  external set disabled(bool value);
+  external set dirName(String value);
   external bool get disabled;
+  external set disabled(bool value);
   external HTMLFormElement? get form;
-  external set maxLength(int value);
   external int get maxLength;
-  external set minLength(int value);
+  external set maxLength(int value);
   external int get minLength;
-  external set name(String value);
+  external set minLength(int value);
   external String get name;
-  external set placeholder(String value);
+  external set name(String value);
   external String get placeholder;
-  external set readOnly(bool value);
+  external set placeholder(String value);
   external bool get readOnly;
-  external set required(bool value);
+  external set readOnly(bool value);
   external bool get required;
-  external set rows(int value);
+  external set required(bool value);
   external int get rows;
-  external set wrap(String value);
+  external set rows(int value);
   external String get wrap;
+  external set wrap(String value);
+
+  /// The read-only **`type`** property of the [HTMLTextAreaElement] always
+  /// returns `textarea`.
   external String get type;
-  external set defaultValue(String value);
   external String get defaultValue;
-  external set value(String value);
+  external set defaultValue(String value);
   external String get value;
+  external set value(String value);
   external int get textLength;
   external bool get willValidate;
   external ValidityState get validity;
   external String get validationMessage;
+
+  /// The **`HTMLTextAreaElement.labels`** read-only property returns
+  /// a [NodeList] of the `label` elements associated with the
+  /// `textArea` element.
   external NodeList get labels;
-  external set selectionStart(int value);
   external int get selectionStart;
-  external set selectionEnd(int value);
+  external set selectionStart(int value);
   external int get selectionEnd;
-  external set selectionDirection(String value);
+  external set selectionEnd(int value);
   external String get selectionDirection;
+  external set selectionDirection(String value);
 }
 
 /// The **`HTMLOutputElement`** interface provides properties and methods
@@ -3348,16 +5746,20 @@ extension type HTMLOutputElement._(JSObject _)
   external void setCustomValidity(String error);
   external DOMTokenList get htmlFor;
   external HTMLFormElement? get form;
-  external set name(String value);
   external String get name;
+  external set name(String value);
   external String get type;
-  external set defaultValue(String value);
   external String get defaultValue;
-  external set value(String value);
+  external set defaultValue(String value);
   external String get value;
+  external set value(String value);
   external bool get willValidate;
   external ValidityState get validity;
   external String get validationMessage;
+
+  /// The **`HTMLOutputElement.labels`** read-only property returns a
+  /// [NodeList] of the `label` elements associated with the
+  /// `output` element.
   external NodeList get labels;
 }
 
@@ -3375,11 +5777,23 @@ extension type HTMLProgressElement._(JSObject _)
   /// Creates an [HTMLProgressElement] using the tag 'progress'.
   HTMLProgressElement() : _ = document.createElement('progress');
 
-  external set value(num value);
+  /// The **`value`** property of the [HTMLProgressElement] interface represents
+  /// the current progress of the `progress` element.
   external num get value;
-  external set max(num value);
+  external set value(num value);
+
+  /// The **`max`** property of the [HTMLProgressElement] interface represents
+  /// the upper bound of the `progress` element's range.
   external num get max;
+  external set max(num value);
+
+  /// The **`position`** read-only property of the [HTMLProgressElement]
+  /// interface returns current progress of the `progress` element.
   external num get position;
+
+  /// The **`HTMLProgressElement.labels`** read-only property returns
+  /// a [NodeList] of the `label` elements associated with the
+  /// `progress` element.
   external NodeList get labels;
 }
 
@@ -3396,18 +5810,22 @@ extension type HTMLMeterElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLMeterElement] using the tag 'meter'.
   HTMLMeterElement() : _ = document.createElement('meter');
 
-  external set value(num value);
   external num get value;
-  external set min(num value);
+  external set value(num value);
   external num get min;
-  external set max(num value);
+  external set min(num value);
   external num get max;
-  external set low(num value);
+  external set max(num value);
   external num get low;
-  external set high(num value);
+  external set low(num value);
   external num get high;
-  external set optimum(num value);
+  external set high(num value);
   external num get optimum;
+  external set optimum(num value);
+
+  /// The **`HTMLMeterElement.labels`** read-only property returns a
+  /// [NodeList] of the `label` elements associated with the
+  /// `meter` element.
   external NodeList get labels;
 }
 
@@ -3428,11 +5846,11 @@ extension type HTMLFieldSetElement._(JSObject _)
   external bool checkValidity();
   external bool reportValidity();
   external void setCustomValidity(String error);
-  external set disabled(bool value);
   external bool get disabled;
+  external set disabled(bool value);
   external HTMLFormElement? get form;
-  external set name(String value);
   external String get name;
+  external set name(String value);
   external String get type;
   external HTMLCollection get elements;
   external bool get willValidate;
@@ -3454,8 +5872,8 @@ extension type HTMLLegendElement._(JSObject _)
   HTMLLegendElement() : _ = document.createElement('legend');
 
   external HTMLFormElement? get form;
-  external set align(String value);
   external String get align;
+  external set align(String value);
 }
 
 /// The **`ValidityState`** interface represents the _validity states_ that an
@@ -3467,25 +5885,187 @@ extension type HTMLLegendElement._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState).
 extension type ValidityState._(JSObject _) implements JSObject {
+  /// The read-only **`valueMissing`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if a
+  /// [`required`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/required)
+  /// control, such as an `input`, `select`, or `textarea`, has an empty value.
+  ///
+  /// If the `required` attribute is set, and no `option` is selected or a
+  /// `<textarea>` or user-editable `<input>` is empty, the `valueMissing`
+  /// property will be `true`. The property is only `true` if the field is
+  /// required and has no value; if the field is not required, or if the field
+  /// is required and has a value, the value is `false`.
   external bool get valueMissing;
+
+  /// The read-only **`typeMismatch`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, after having been edited by
+  /// the user, does not conform to the constraints set by the element's
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#input_types)
+  /// attribute.
+  ///
+  /// If the `type` attribute expects specific strings, such as the `email` and
+  /// `url` types and the value doesn't conform to the constraints set by the
+  /// type, the `typeMismatch` property will be true.
+  ///
+  /// The `email` input type expects one or more valid email addresses,
+  /// depending on whether the
+  /// [`multiple`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/multiple)
+  /// attribute is present. A valid email address includes an email prefix and a
+  /// domain, with or without a top level domain. If the value of the email
+  /// input is not an empty string, a single valid email address, or one or more
+  /// comma separated email address if the
+  /// [`multiple`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/multiple)
+  /// attribute is present, there is a `typeMismatch`.
+  ///
+  /// The `url` input type expects one or more valid URLs, depending on whether
+  /// the
+  /// [`multiple`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/multiple)
+  /// attribute is present. A valid URL includes a protocol, optionally with an
+  /// IP address, or an optional subdomain, domain, and top level domain
+  /// combination. If the value of the URL input is not an empty string, a
+  /// single valid URL, or one or more comma separated URLS if the
+  /// [`multiple`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/multiple)
+  /// attribute is present, there is a `typeMismatch`.
+  ///
+  /// | Input type                              | Value             | Expected value                                                 |
+  /// | --------------------------------------- | ----------------- | -------------------------------------------------------------- |
+  /// | `email` | `x@y` or `x@y.z`  | email address, with or without [TLD](https://developer.mozilla.org/en-US/docs/Glossary/TLD) |
+  /// | `url`     | `x:` or `x://y.z` | protocol or full URL with protocol                             |
   external bool get typeMismatch;
+
+  /// The read-only **`patternMismatch`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, after having been edited by
+  /// the user, does not conform to the constraints set by the element's
+  /// [`pattern`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern)
+  /// attribute.
+  ///
+  /// The `patternMismatch` property will be true if and only if the following
+  /// conditions are all true:
+  ///
+  /// - the field supports the
+  ///   [`pattern`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern)
+  ///   attribute — which means the `input` is of `type` `text`, `tel`, `email`,
+  ///   `url`, `password`, or `search`
+  /// - the
+  ///   [`pattern`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern)
+  ///   attribute contains a valid regular expression
+  /// - the `input` value doesn't conform to the constraints set by the
+  ///   [`pattern`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/pattern)
+  ///   value.
   external bool get patternMismatch;
+
+  /// The read-only **`tooLong`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input` or `textarea`, after having
+  /// been edited by the user, exceeds the maximum code-unit length established
+  /// by the element's
+  /// [`maxlength`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/maxlength)
+  /// attribute.
   external bool get tooLong;
+
+  /// The read-only **`tooShort`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, `button`, `select`, `output`,
+  /// `fieldset` or `textarea`, after having been edited by the user, is less
+  /// than the minimum code-unit length established by the element's `minlength`
+  /// attribute.
   external bool get tooShort;
+
+  /// The read-only **`rangeUnderflow`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, after having been edited by
+  /// the user, does not conform to the constraints set by the element's
+  /// [`min`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/min)
+  /// attribute.
+  ///
+  /// If the field is numeric in nature, including the `date`, `month`, `week`,
+  /// `time`, , `number` and `range` types and a `min` value is set, if the
+  /// value doesn't conform to the constraints set by the
+  /// [`min`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/step)
+  /// value, the `rangeUnderflow` property will be true.
+  ///
+  /// Given the following:
+  ///
+  /// ```html
+  /// <input type="number" min="20" max="40" step="2" />
+  /// ```
+  ///
+  /// if `value < 20`, `rangeUnderflow` will be true. When `true`, the element
+  /// matches the  and  CSS pseudo-classes.
   external bool get rangeUnderflow;
-  external bool get rangeOverflow;
-  external bool get stepMismatch;
-  external bool get badInput;
-  external bool get customError;
-  external bool get valid;
-}
 
-/// The **`SubmitEvent`** interface defines the object used to represent an
-/// form's [HTMLFormElement.submit_event] event. This event is fired at the
-/// `form` when the form's submit action is invoked.
-///
-/// ---
-///
+  /// The read-only **`rangeOverflow`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, after having been edited by
+  /// the user, does not conform to the constraints set by the element's
+  /// [`max`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/max)
+  /// attribute.
+  ///
+  /// If the field is numeric in nature, including the `date`, `month`, `week`,
+  /// `time`, , `number` and `range` types and a `max` value is set, if the
+  /// value doesn't conform to the constraints set by the
+  /// [`max`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/step)
+  /// value, the `rangeOverflow` property will be true.
+  ///
+  /// Given the following:
+  ///
+  /// ```html
+  /// <input type="number" min="20" max="40" step="2" />
+  /// ```
+  ///
+  /// if `value > 40`, `rangeOverflow` will be true. When `true`, the element
+  /// matches the  and  CSS pseudo-classes.
+  external bool get rangeOverflow;
+
+  /// The read-only **`stepMismatch`** property of a
+  /// **[`ValidityState`](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)**
+  /// object indicates if the value of an `input`, after having been edited by
+  /// the user, does not conform to the constraints set by the element's `step`
+  /// attribute.
+  ///
+  /// If the field is numeric in nature, including the `date`, `month`, `week`,
+  /// `time`, , `number` and `range` types and the step value is not `any`, if
+  /// the value don't doesn't conform to the constraints set by the
+  /// [`step`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/step)
+  /// and
+  /// [`min`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/min)
+  /// values, then `stepMismatch` will be true. If the remainder of the form
+  /// control's value less the
+  /// [`min`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/min)
+  /// value, divided by the
+  /// [`step`](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/step)
+  /// value (which defaults to 1 if omitted) is not zero, there is a mismatch.
+  ///
+  /// Given the following:
+  ///
+  /// ```html
+  /// <input type="number" min="20" max="40" step="2" />
+  /// ```
+  ///
+  /// if `(value - min) % 2 !== 0`, `stepMismatch` will be true.
+  ///
+  /// If true, the element matches the  and  CSS pseudo-classes.
+  external bool get stepMismatch;
+
+  /// The read-only **`badInput`** property of a
+  /// [ValidityState](https://developer.mozilla.org/en-US/docs/Web/API/ValidityState)
+  /// object indicates if the user has provided input that the browser is unable
+  /// to convert. For example, if you have a number input element whose content
+  /// is a string.
+  external bool get badInput;
+  external bool get customError;
+  external bool get valid;
+}
+
+/// The **`SubmitEvent`** interface defines the object used to represent an
+/// form's [HTMLFormElement.submit_event] event. This event is fired at the
+/// `form` when the form's submit action is invoked.
+///
+/// ---
+///
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SubmitEvent).
 extension type SubmitEvent._(JSObject _) implements Event, JSObject {
@@ -3494,6 +6074,9 @@ extension type SubmitEvent._(JSObject _) implements Event, JSObject {
     SubmitEventInit eventInitDict,
   ]);
 
+  /// The read-only **`submitter`** property found on
+  /// the [SubmitEvent] interface specifies the submit button or other element
+  /// that was invoked to cause the form to be submitted.
   external HTMLElement? get submitter;
 }
 extension type SubmitEventInit._(JSObject _) implements EventInit, JSObject {
@@ -3504,8 +6087,8 @@ extension type SubmitEventInit._(JSObject _) implements EventInit, JSObject {
     HTMLElement? submitter,
   });
 
-  external set submitter(HTMLElement? value);
   external HTMLElement? get submitter;
+  external set submitter(HTMLElement? value);
 }
 
 /// The **`FormDataEvent`** interface represents a
@@ -3530,6 +6113,10 @@ extension type FormDataEvent._(JSObject _) implements Event, JSObject {
     FormDataEventInit eventInitDict,
   );
 
+  /// The `formData` read-only property of the [FormDataEvent]
+  /// interface contains the [FormData] object representing the data contained
+  /// in
+  /// the form when the event was fired.
   external FormData get formData;
 }
 extension type FormDataEventInit._(JSObject _) implements EventInit, JSObject {
@@ -3540,8 +6127,8 @@ extension type FormDataEventInit._(JSObject _) implements EventInit, JSObject {
     required FormData formData,
   });
 
-  external set formData(FormData value);
   external FormData get formData;
+  external set formData(FormData value);
 }
 
 /// The **`HTMLDetailsElement`** interface provides special properties (beyond
@@ -3557,10 +6144,16 @@ extension type HTMLDetailsElement._(JSObject _)
   /// Creates an [HTMLDetailsElement] using the tag 'details'.
   HTMLDetailsElement() : _ = document.createElement('details');
 
-  external set name(String value);
   external String get name;
-  external set open(bool value);
+  external set name(String value);
+
+  /// The **`open`** property of the
+  /// [HTMLDetailsElement] interface is a boolean value reflecting the
+  /// [`open`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details#open)
+  /// HTML attribute, indicating whether the `details`'s contents (not counting
+  /// the `summary`) is to be shown to the user.
   external bool get open;
+  external set open(bool value);
 }
 
 /// The **`HTMLDialogElement`** interface provides methods to manipulate
@@ -3595,10 +6188,20 @@ extension type HTMLDialogElement._(JSObject _)
   /// An optional string may be passed as an argument, updating the
   /// `returnValue` of the dialog.
   external void close([String returnValue]);
-  external set open(bool value);
+
+  /// The **`open`** property of the
+  /// [HTMLDialogElement] interface is a boolean value reflecting the
+  /// [`open`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog#open)
+  /// HTML attribute, indicating whether the `dialog` is
+  /// available for interaction.
   external bool get open;
-  external set returnValue(String value);
+  external set open(bool value);
+
+  /// The **`returnValue`** property of the [HTMLDialogElement] interface gets
+  /// or sets the return value for the `dialog`, usually to indicate which
+  /// button the user pressed to close it.
   external String get returnValue;
+  external set returnValue(String value);
 }
 
 /// HTML `script` elements expose the **`HTMLScriptElement`** interface, which
@@ -3624,33 +6227,47 @@ extension type HTMLScriptElement._(JSObject _)
   HTMLScriptElement() : _ = document.createElement('script');
 
   external static bool supports(String type);
-  external set src(String value);
   external String get src;
-  external set type(String value);
+  external set src(String value);
   external String get type;
-  external set noModule(bool value);
+  external set type(String value);
   external bool get noModule;
-  external set async(bool value);
+  external set noModule(bool value);
   external bool get async;
-  external set defer(bool value);
+  external set async(bool value);
   external bool get defer;
-  external set crossOrigin(String? value);
+  external set defer(bool value);
+
+  /// The **`crossOrigin`** property of the [HTMLScriptElement] interface
+  /// reflects the  settings for the script element. For classic scripts from
+  /// other [origins](https://developer.mozilla.org/en-US/docs/Glossary/Origin),
+  /// this controls if full error information will be exposed. For module
+  /// scripts, it controls the script itself and any script it imports. See
+  /// [CORS settings attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/crossorigin)
+  /// for details.
   external String? get crossOrigin;
-  external set text(String value);
+  external set crossOrigin(String? value);
   external String get text;
-  external set integrity(String value);
+  external set text(String value);
   external String get integrity;
-  external set referrerPolicy(String value);
+  external set integrity(String value);
+
+  /// The **`referrerPolicy`** property of the
+  /// [HTMLScriptElement] interface reflects the HTML
+  /// [`referrerpolicy`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script#referrerpolicy)
+  /// of the `script` element, which defines how the referrer is set when
+  /// fetching the script and any scripts it imports.
   external String get referrerPolicy;
+  external set referrerPolicy(String value);
   external DOMTokenList get blocking;
-  external set fetchPriority(String value);
   external String get fetchPriority;
-  external set charset(String value);
+  external set fetchPriority(String value);
   external String get charset;
-  external set event(String value);
+  external set charset(String value);
   external String get event;
-  external set htmlFor(String value);
+  external set event(String value);
   external String get htmlFor;
+  external set htmlFor(String value);
 }
 
 /// The **`HTMLTemplateElement`** interface enables access to the contents of an
@@ -3665,11 +6282,14 @@ extension type HTMLTemplateElement._(JSObject _)
   /// Creates an [HTMLTemplateElement] using the tag 'template'.
   HTMLTemplateElement() : _ = document.createElement('template');
 
+  /// The **`HTMLTemplateElement.content`** property returns a
+  /// `<template>` element's template contents (a
+  /// [DocumentFragment]).
   external DocumentFragment get content;
-  external set shadowRootMode(String value);
   external String get shadowRootMode;
-  external set shadowRootDelegatesFocus(bool value);
+  external set shadowRootMode(String value);
   external bool get shadowRootDelegatesFocus;
+  external set shadowRootDelegatesFocus(bool value);
 }
 
 /// The **`HTMLSlotElement`** interface of the
@@ -3714,14 +6334,19 @@ extension type HTMLSlotElement._(JSObject _) implements HTMLElement, JSObject {
   /// > [created](https://developer.mozilla.org/en-US/docs/Web/API/Element/attachShadow)
   /// > with the `slotAssignment: "manual"` option.
   external void assign(JSObject nodes);
-  external set name(String value);
+
+  /// The **`name`** property of the [HTMLSlotElement]
+  /// interface returns or sets the slot name. A slot is a placeholder inside a
+  /// web component
+  /// that users can fill with their own markup.
   external String get name;
+  external set name(String value);
 }
 extension type AssignedNodesOptions._(JSObject _) implements JSObject {
   external factory AssignedNodesOptions({bool flatten});
 
-  external set flatten(bool value);
   external bool get flatten;
+  external set flatten(bool value);
 }
 
 /// The **`HTMLCanvasElement`** interface provides properties and methods for
@@ -3800,10 +6425,34 @@ extension type HTMLCanvasElement._(JSObject _)
   /// control to an [OffscreenCanvas] object, either on the main thread or on a
   /// worker.
   external OffscreenCanvas transferControlToOffscreen();
-  external set width(int value);
+
+  /// The **`HTMLCanvasElement.width`** property is a
+  /// positive `integer` reflecting the
+  /// [`width`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas#width)
+  /// HTML
+  /// attribute of the `canvas` element interpreted in CSS pixels. When the
+  /// attribute is not specified, or if it is set to an invalid value, like a
+  /// negative, the
+  /// default value of `300` is used.
+  ///
+  /// This is one of the two properties, the other being
+  /// [HTMLCanvasElement.height], that controls the size of the canvas.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The **`HTMLCanvasElement.height`** property is a
+  /// positive `integer` reflecting the
+  /// [`height`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas#height)
+  /// HTML
+  /// attribute of the `canvas` element interpreted in CSS pixels. When the
+  /// attribute is not specified, or if it is set to an invalid value, like a
+  /// negative, the
+  /// default value of `150` is used.
+  ///
+  /// This is one of the two properties, the other being
+  /// [HTMLCanvasElement.width], that controls the size of the canvas.
   external int get height;
+  external set height(int value);
 }
 extension type CanvasRenderingContext2DSettings._(JSObject _)
     implements JSObject {
@@ -3814,14 +6463,14 @@ extension type CanvasRenderingContext2DSettings._(JSObject _)
     bool willReadFrequently,
   });
 
-  external set alpha(bool value);
   external bool get alpha;
-  external set desynchronized(bool value);
+  external set alpha(bool value);
   external bool get desynchronized;
-  external set colorSpace(PredefinedColorSpace value);
+  external set desynchronized(bool value);
   external PredefinedColorSpace get colorSpace;
-  external set willReadFrequently(bool value);
+  external set colorSpace(PredefinedColorSpace value);
   external bool get willReadFrequently;
+  external set willReadFrequently(bool value);
 }
 
 /// The **`CanvasRenderingContext2D`** interface, part of the
@@ -4588,59 +7237,344 @@ extension type CanvasRenderingContext2D._(JSObject _) implements JSObject {
     num endAngle, [
     bool counterclockwise,
   ]);
+
+  /// The **`CanvasRenderingContext2D.canvas`** property, part of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API),
+  /// is a read-only reference to the
+  /// [HTMLCanvasElement] object that is associated with a given context. It
+  /// might be
+  /// [`null`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null)
+  /// if there is no associated `canvas` element.
   external HTMLCanvasElement get canvas;
-  external set globalAlpha(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.globalAlpha`**
+  /// property of the Canvas 2D API specifies the alpha (transparency) value
+  /// that is applied
+  /// to shapes and images before they are drawn onto the canvas.
+  ///
+  /// > **Note:** See also the chapter
+  /// > [Applying styles and color](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors)
+  /// > in the
+  /// > [Canvas Tutorial](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial).
   external num get globalAlpha;
-  external set globalCompositeOperation(String value);
+  external set globalAlpha(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.globalCompositeOperation`**
+  /// property of the Canvas 2D API sets the type of compositing operation to
+  /// apply when
+  /// drawing new shapes.
+  ///
+  /// See also
+  /// [Compositing and clipping](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Compositing)
+  /// in the
+  /// [Canvas Tutorial](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial).
   external String get globalCompositeOperation;
-  external set imageSmoothingEnabled(bool value);
+  external set globalCompositeOperation(String value);
+
+  /// The **`imageSmoothingEnabled`** property of the
+  /// [CanvasRenderingContext2D] interface, part of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API),
+  /// determines whether scaled images
+  /// are smoothed (`true`, default) or not (`false`). On getting the
+  /// `imageSmoothingEnabled` property, the last value it was set to is
+  /// returned.
+  ///
+  /// This property is useful for games and other apps that use pixel art. When
+  /// enlarging
+  /// images, the default resizing algorithm will blur the pixels. Set this
+  /// property to
+  /// `false` to retain the pixels' sharpness.
+  ///
+  /// > **Note:** You can adjust the smoothing quality with the
+  /// > [CanvasRenderingContext2D.imageSmoothingQuality]
+  /// > property.
   external bool get imageSmoothingEnabled;
-  external set imageSmoothingQuality(ImageSmoothingQuality value);
+  external set imageSmoothingEnabled(bool value);
+
+  /// The **`imageSmoothingQuality`** property of the
+  /// [CanvasRenderingContext2D] interface, part of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API),
+  /// lets you set the quality of
+  /// image smoothing.
+  ///
+  /// > **Note:** For this property to have an effect,
+  /// > [CanvasRenderingContext2D.imageSmoothingEnabled]
+  /// > must be `true`.
   external ImageSmoothingQuality get imageSmoothingQuality;
-  external set strokeStyle(JSAny value);
+  external set imageSmoothingQuality(ImageSmoothingQuality value);
+
+  /// The **`CanvasRenderingContext2D.strokeStyle`** property of the
+  /// Canvas 2D API specifies the color, gradient, or pattern to use for the
+  /// strokes
+  /// (outlines) around shapes. The default is `#000` (black).
+  ///
+  /// > **Note:** For more examples of stroke and fill styles, see
+  /// > [Applying styles and color](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors)
+  /// > in the
+  /// > [Canvas tutorial](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial).
   external JSAny get strokeStyle;
-  external set fillStyle(JSAny value);
+  external set strokeStyle(JSAny value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.fillStyle`**
+  /// property of the
+  /// [Canvas 2D API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies the
+  /// color, gradient, or pattern to use inside shapes. The default style is
+  /// `#000`
+  /// (black).
+  ///
+  /// > **Note:** For more examples of fill and stroke styles, see
+  /// > [Applying styles and color](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors)
+  /// > in the
+  /// > [Canvas tutorial](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial).
   external JSAny get fillStyle;
-  external set shadowOffsetX(num value);
+  external set fillStyle(JSAny value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.shadowOffsetX`**
+  /// property of the Canvas 2D API specifies the distance that shadows will be
+  /// offset
+  /// horizontally.
+  ///
+  /// > **Note:** Shadows are only drawn if the
+  /// > [CanvasRenderingContext2D.shadowColor] property is set to
+  /// > a non-transparent value. One of the
+  /// > [CanvasRenderingContext2D.shadowBlur], `shadowOffsetX`, or
+  /// > [CanvasRenderingContext2D.shadowOffsetY] properties must
+  /// > be non-zero, as well.
   external num get shadowOffsetX;
-  external set shadowOffsetY(num value);
+  external set shadowOffsetX(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.shadowOffsetY`**
+  /// property of the Canvas 2D API specifies the distance that shadows will be
+  /// offset
+  /// vertically.
+  ///
+  /// > **Note:** Shadows are only drawn if the
+  /// > [CanvasRenderingContext2D.shadowColor] property is set to
+  /// > a non-transparent value. One of the
+  /// > [CanvasRenderingContext2D.shadowBlur],
+  /// > [CanvasRenderingContext2D.shadowOffsetX], or `shadowOffsetY` properties
+  /// > must be non-zero, as
+  /// > well.
   external num get shadowOffsetY;
-  external set shadowBlur(num value);
+  external set shadowOffsetY(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.shadowBlur`**
+  /// property of the Canvas 2D API specifies the amount of blur applied to
+  /// shadows. The
+  /// default is `0` (no blur).
+  ///
+  /// > **Note:** Shadows are only drawn if the
+  /// > [CanvasRenderingContext2D.shadowColor] property is set to
+  /// > a non-transparent value. One of the `shadowBlur`,
+  /// > [CanvasRenderingContext2D.shadowOffsetX], or
+  /// > [CanvasRenderingContext2D.shadowOffsetY] properties must
+  /// > be non-zero, as well.
   external num get shadowBlur;
-  external set shadowColor(String value);
+  external set shadowBlur(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.shadowColor`**
+  /// property of the Canvas 2D API specifies the color of shadows.
+  ///
+  /// Be aware that the shadow's rendered opacity will be affected by the
+  /// opacity of the
+  /// [CanvasRenderingContext2D.fillStyle] color when filling, and
+  /// of the [CanvasRenderingContext2D.strokeStyle] color when
+  /// stroking.
+  ///
+  /// > **Note:** Shadows are only drawn if the `shadowColor`
+  /// > property is set to a non-transparent value. One of the
+  /// > [CanvasRenderingContext2D.shadowBlur],
+  /// > [CanvasRenderingContext2D.shadowOffsetX], or
+  /// > [CanvasRenderingContext2D.shadowOffsetY] properties must
+  /// > be non-zero, as well.
   external String get shadowColor;
-  external set filter(String value);
+  external set shadowColor(String value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.filter`**
+  /// property of the Canvas 2D API provides filter effects such as blurring and
+  /// grayscaling.
+  /// It is similar to the CSS `filter` property and accepts the same values.
   external String get filter;
-  external set lineWidth(num value);
+  external set filter(String value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.lineWidth`**
+  /// property of the Canvas 2D API sets the thickness of lines.
+  ///
+  /// > **Note:** Lines can be drawn with the
+  /// > [CanvasRenderingContext2D.stroke],
+  /// > [CanvasRenderingContext2D.strokeRect],
+  /// > and [CanvasRenderingContext2D.strokeText] methods.
   external num get lineWidth;
-  external set lineCap(CanvasLineCap value);
+  external set lineWidth(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.lineCap`**
+  /// property of the Canvas 2D API determines the shape used to draw the end
+  /// points of lines.
+  ///
+  /// > **Note:** Lines can be drawn with the
+  /// > [CanvasRenderingContext2D.stroke],
+  /// > [CanvasRenderingContext2D.strokeRect],
+  /// > and [CanvasRenderingContext2D.strokeText] methods.
   external CanvasLineCap get lineCap;
-  external set lineJoin(CanvasLineJoin value);
+  external set lineCap(CanvasLineCap value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.lineJoin`**
+  /// property of the Canvas 2D API determines the shape used to join two line
+  /// segments where
+  /// they meet.
+  ///
+  /// This property has no effect wherever two connected segments have the same
+  /// direction,
+  /// because no joining area will be added in this case. Degenerate segments
+  /// with a length of
+  /// zero (i.e., with all endpoints and control points at the exact same
+  /// position) are also
+  /// ignored.
+  ///
+  /// > **Note:** Lines can be drawn with the
+  /// > [CanvasRenderingContext2D.stroke],
+  /// > [CanvasRenderingContext2D.strokeRect],
+  /// > and [CanvasRenderingContext2D.strokeText] methods.
   external CanvasLineJoin get lineJoin;
-  external set miterLimit(num value);
+  external set lineJoin(CanvasLineJoin value);
+
+  /// The **`CanvasRenderingContext2D.miterLimit`** property of the
+  /// Canvas 2D API sets the miter limit ratio.
+  ///
+  /// > **Note:** For more info about miters, see
+  /// > [Applying styles and color](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Applying_styles_and_colors)
+  /// > in the
+  /// > [Canvas tutorial](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial).
   external num get miterLimit;
-  external set lineDashOffset(num value);
+  external set miterLimit(num value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.lineDashOffset`**
+  /// property of the Canvas 2D API sets the line dash offset, or "phase."
+  ///
+  /// > **Note:** Lines are drawn by calling the
+  /// > [CanvasRenderingContext2D.stroke] method.
   external num get lineDashOffset;
-  external set font(String value);
+  external set lineDashOffset(num value);
+
+  /// The **`CanvasRenderingContext2D.font`** property of the Canvas 2D API
+  /// specifies the current text style to use when drawing text.
+  /// This string uses the same syntax as the
+  /// [CSS font](https://developer.mozilla.org/en-US/docs/Web/CSS/font)
+  /// specifier.
   external String get font;
-  external set textAlign(CanvasTextAlign value);
+  external set font(String value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.textAlign`**
+  /// property of the Canvas 2D API specifies the current text alignment used
+  /// when drawing
+  /// text.
+  ///
+  /// The alignment is relative to the `x` value of the
+  /// [CanvasRenderingContext2D.fillText] method. For example, if
+  /// `textAlign` is `"center"`, then the text's left edge will be at
+  /// `x - (textWidth / 2)`.
   external CanvasTextAlign get textAlign;
-  external set textBaseline(CanvasTextBaseline value);
+  external set textAlign(CanvasTextAlign value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.textBaseline`**
+  /// property of the Canvas 2D API specifies the current text baseline used
+  /// when drawing
+  /// text.
   external CanvasTextBaseline get textBaseline;
-  external set direction(CanvasDirection value);
+  external set textBaseline(CanvasTextBaseline value);
+
+  /// The
+  /// **`CanvasRenderingContext2D.direction`**
+  /// property of the Canvas 2D API specifies the current text direction used to
+  /// draw text.
   external CanvasDirection get direction;
-  external set letterSpacing(String value);
+  external set direction(CanvasDirection value);
+
+  /// The **`CanvasRenderingContext2D.letterSpacing`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies the spacing between letters when drawing text.
+  ///
+  /// This corresponds to the CSS
+  /// [`letter-spacing`](https://developer.mozilla.org/en-US/docs/Web/CSS/letter-spacing)
+  /// property.
   external String get letterSpacing;
-  external set fontKerning(CanvasFontKerning value);
+  external set letterSpacing(String value);
+
+  /// The **`CanvasRenderingContext2D.fontKerning`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies how font kerning information is used.
+  ///
+  /// Kerning adjusts how adjacent letters are spaced in a proportional font,
+  /// allowing them to edge into each other's visual area if there is space
+  /// available.
+  /// For example, in well-kerned fonts, the characters `AV`, `Ta` and `We` nest
+  /// together and make character spacing more uniform and pleasant to read than
+  /// the equivalent text without kerning.
+  ///
+  /// The property corresponds to the
+  /// [`font-kerning`](https://developer.mozilla.org/en-US/docs/Web/CSS/font-kerning)
+  /// CSS property.
   external CanvasFontKerning get fontKerning;
-  external set fontStretch(CanvasFontStretch value);
+  external set fontKerning(CanvasFontKerning value);
+
+  /// The **`CanvasRenderingContext2D.fontStretch`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies how the font may be expanded or condensed when drawing text.
+  ///
+  /// The property corresponds to the
+  /// [`font-stretch`](https://developer.mozilla.org/en-US/docs/Web/CSS/font-stretch)
+  /// CSS property when used with keywords (percentage values are not
+  /// supported).
   external CanvasFontStretch get fontStretch;
-  external set fontVariantCaps(CanvasFontVariantCaps value);
+  external set fontStretch(CanvasFontStretch value);
+
+  /// The **`CanvasRenderingContext2D.fontVariantCaps`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies an alternative capitalization of the rendered text.
+  ///
+  /// This corresponds to the CSS
+  /// [`font-variant-caps`](https://developer.mozilla.org/en-US/docs/Web/CSS/font-variant-caps)
+  /// property.
   external CanvasFontVariantCaps get fontVariantCaps;
-  external set textRendering(CanvasTextRendering value);
+  external set fontVariantCaps(CanvasFontVariantCaps value);
+
+  /// The **`CanvasRenderingContext2D.textRendering`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// provides information to the rendering engine about what to optimize for
+  /// when rendering text.
+  ///
+  /// The values correspond to the SVG
+  /// [`text-rendering`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/text-rendering)
+  /// attribute (and CSS
+  /// [`text-rendering`](https://developer.mozilla.org/en-US/docs/Web/CSS/text-rendering)
+  /// property).
   external CanvasTextRendering get textRendering;
-  external set wordSpacing(String value);
+  external set textRendering(CanvasTextRendering value);
+
+  /// The **`CanvasRenderingContext2D.wordSpacing`** property of the
+  /// [Canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API)
+  /// specifies the spacing between words when drawing text.
+  ///
+  /// This corresponds to the CSS
+  /// [`word-spacing`](https://developer.mozilla.org/en-US/docs/Web/CSS/word-spacing)
+  /// property.
   external String get wordSpacing;
+  external set wordSpacing(String value);
 }
 
 /// The **`CanvasGradient`** interface represents an
@@ -4693,24 +7627,86 @@ extension type CanvasPattern._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/TextMetrics).
 extension type TextMetrics._(JSObject _) implements JSObject {
+  /// The read-only **`width`** property of the [TextMetrics] interface contains
+  /// the text's advance width (the width of that inline box) in CSS pixels.
   external num get width;
+
+  /// The read-only `actualBoundingBoxLeft` property of the [TextMetrics]
+  /// interface is a `double` giving the distance parallel to the baseline from
+  /// the alignment point given by the [CanvasRenderingContext2D.textAlign]
+  /// property to the left side of the bounding rectangle of the given text, in
+  /// CSS pixels; positive numbers indicating a distance going left from the
+  /// given alignment point.
   external num get actualBoundingBoxLeft;
+
+  /// The read-only `actualBoundingBoxRight` property of the [TextMetrics]
+  /// interface is a `double` giving the distance parallel to the baseline from
+  /// the alignment point given by the [CanvasRenderingContext2D.textAlign]
+  /// property to the right side of the bounding rectangle of the given text, in
+  /// CSS pixels.
   external num get actualBoundingBoxRight;
+
+  /// The read-only `fontBoundingBoxAscent` property of the [TextMetrics]
+  /// interface returns the distance from the horizontal line indicated by the
+  /// [CanvasRenderingContext2D.textBaseline] attribute, to the top of the
+  /// highest bounding rectangle of all the fonts used to render the text, in
+  /// CSS pixels.
   external num get fontBoundingBoxAscent;
+
+  /// The read-only `fontBoundingBoxDescent` property of the [TextMetrics]
+  /// interface returns the distance from the horizontal line indicated by the
+  /// [CanvasRenderingContext2D.textBaseline] attribute to the bottom of the
+  /// bounding rectangle of all the fonts used to render the text, in CSS
+  /// pixels.
   external num get fontBoundingBoxDescent;
+
+  /// The read-only **`actualBoundingBoxAscent`** property of the [TextMetrics]
+  /// interface is a `double` giving the distance from the horizontal line
+  /// indicated by the [CanvasRenderingContext2D.textBaseline] attribute to the
+  /// top of the bounding rectangle used to render the text, in CSS pixels.
   external num get actualBoundingBoxAscent;
+
+  /// The read-only `actualBoundingBoxDescent` property of the [TextMetrics]
+  /// interface is a `double` giving the distance from the horizontal line
+  /// indicated by the [CanvasRenderingContext2D.textBaseline] attribute to the
+  /// bottom of the bounding rectangle used to render the text, in CSS pixels.
   external num get actualBoundingBoxDescent;
+
+  /// The read-only `emHeightAscent` property of the [TextMetrics] interface
+  /// returns the distance from the horizontal line indicated by the
+  /// [CanvasRenderingContext2D.textBaseline] property to the top of the _em_
+  /// square in the line box, in CSS pixels.
   external num get emHeightAscent;
+
+  /// The read-only `emHeightDescent` property of the [TextMetrics] interface
+  /// returns the distance from the horizontal line indicated by the
+  /// [CanvasRenderingContext2D.textBaseline] property to the bottom of the _em_
+  /// square in the line box, in CSS pixels.
   external num get emHeightDescent;
+
+  /// The read-only `hangingBaseline` property of the [TextMetrics] interface is
+  /// a `double` giving the distance from the horizontal line indicated by the
+  /// [CanvasRenderingContext2D.textBaseline] property to the hanging baseline
+  /// of the line box, in CSS pixels.
   external num get hangingBaseline;
+
+  /// The read-only `alphabeticBaseline` property of the [TextMetrics] interface
+  /// is a `double` giving the distance from the horizontal line indicated by
+  /// the [CanvasRenderingContext2D.textBaseline] property to the alphabetic
+  /// baseline of the line box, in CSS pixels.
   external num get alphabeticBaseline;
+
+  /// The read-only `ideographicBaseline` property of the [TextMetrics]
+  /// interface is a `double` giving the distance from the horizontal line
+  /// indicated by the [CanvasRenderingContext2D.textBaseline] property to the
+  /// ideographic baseline of the line box, in CSS pixels.
   external num get ideographicBaseline;
 }
 extension type ImageDataSettings._(JSObject _) implements JSObject {
   external factory ImageDataSettings({PredefinedColorSpace colorSpace});
 
-  external set colorSpace(PredefinedColorSpace value);
   external PredefinedColorSpace get colorSpace;
+  external set colorSpace(PredefinedColorSpace value);
 }
 
 /// The **`ImageData`** interface represents the underlying pixel data of an
@@ -4734,9 +7730,30 @@ extension type ImageData._(JSObject _) implements JSObject {
     ImageDataSettings settings,
   ]);
 
+  /// The readonly **`ImageData.width`** property returns the number
+  /// of pixels per row in the [ImageData] object.
   external int get width;
+
+  /// The readonly **`ImageData.height`** property returns the number
+  /// of rows in the [ImageData] object.
   external int get height;
+
+  /// The readonly **`ImageData.data`** property returns a
+  /// `Uint8ClampedArray` that contains the [ImageData] object's
+  /// pixel data. Data is stored as a one-dimensional array in the RGBA order,
+  /// with integer
+  /// values between `0` and `255` (inclusive).
   external JSUint8ClampedArray get data;
+
+  /// The read-only **`ImageData.colorSpace`** property is a string indicating
+  /// the color space of the image data.
+  ///
+  /// The color space can be set during `ImageData` initialization using either
+  /// the
+  /// [`ImageData()`](https://developer.mozilla.org/en-US/docs/Web/API/ImageData/ImageData)
+  /// constructor or the
+  /// [`createImageData()`](https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/createImageData)
+  /// method.
   external PredefinedColorSpace get colorSpace;
 }
 
@@ -4856,8 +7873,8 @@ extension type ImageBitmapRenderingContextSettings._(JSObject _)
     implements JSObject {
   external factory ImageBitmapRenderingContextSettings({bool alpha});
 
-  external set alpha(bool value);
   external bool get alpha;
+  external set alpha(bool value);
 }
 extension type ImageEncodeOptions._(JSObject _) implements JSObject {
   external factory ImageEncodeOptions({
@@ -4865,10 +7882,10 @@ extension type ImageEncodeOptions._(JSObject _) implements JSObject {
     num quality,
   });
 
-  external set type(String value);
   external String get type;
-  external set quality(num value);
+  external set type(String value);
   external num get quality;
+  external set quality(num value);
 }
 
 /// When using the `canvas` element or the
@@ -4926,14 +7943,20 @@ extension type OffscreenCanvas._(JSObject _) implements EventTarget, JSObject {
   /// The created image will have a resolution of 96dpi for file formats that
   /// support encoding resolution metadata.
   external JSPromise<Blob> convertToBlob([ImageEncodeOptions options]);
-  external set width(int value);
+
+  /// The **`width`** property returns and sets the width of an
+  /// [OffscreenCanvas] object.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The **`height`** property returns and sets the height of an
+  /// [OffscreenCanvas] object.
   external int get height;
-  external set oncontextlost(EventHandler value);
+  external set height(int value);
   external EventHandler get oncontextlost;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextrestored;
+  external set oncontextrestored(EventHandler value);
 }
 
 /// The **`OffscreenCanvasRenderingContext2D`** interface is a
@@ -5167,58 +8190,58 @@ extension type OffscreenCanvasRenderingContext2D._(JSObject _)
     bool counterclockwise,
   ]);
   external OffscreenCanvas get canvas;
-  external set globalAlpha(num value);
   external num get globalAlpha;
-  external set globalCompositeOperation(String value);
+  external set globalAlpha(num value);
   external String get globalCompositeOperation;
-  external set imageSmoothingEnabled(bool value);
+  external set globalCompositeOperation(String value);
   external bool get imageSmoothingEnabled;
-  external set imageSmoothingQuality(ImageSmoothingQuality value);
+  external set imageSmoothingEnabled(bool value);
   external ImageSmoothingQuality get imageSmoothingQuality;
-  external set strokeStyle(JSAny value);
+  external set imageSmoothingQuality(ImageSmoothingQuality value);
   external JSAny get strokeStyle;
-  external set fillStyle(JSAny value);
+  external set strokeStyle(JSAny value);
   external JSAny get fillStyle;
-  external set shadowOffsetX(num value);
+  external set fillStyle(JSAny value);
   external num get shadowOffsetX;
-  external set shadowOffsetY(num value);
+  external set shadowOffsetX(num value);
   external num get shadowOffsetY;
-  external set shadowBlur(num value);
+  external set shadowOffsetY(num value);
   external num get shadowBlur;
-  external set shadowColor(String value);
+  external set shadowBlur(num value);
   external String get shadowColor;
-  external set filter(String value);
+  external set shadowColor(String value);
   external String get filter;
-  external set lineWidth(num value);
+  external set filter(String value);
   external num get lineWidth;
-  external set lineCap(CanvasLineCap value);
+  external set lineWidth(num value);
   external CanvasLineCap get lineCap;
-  external set lineJoin(CanvasLineJoin value);
+  external set lineCap(CanvasLineCap value);
   external CanvasLineJoin get lineJoin;
-  external set miterLimit(num value);
+  external set lineJoin(CanvasLineJoin value);
   external num get miterLimit;
-  external set lineDashOffset(num value);
+  external set miterLimit(num value);
   external num get lineDashOffset;
-  external set font(String value);
+  external set lineDashOffset(num value);
   external String get font;
-  external set textAlign(CanvasTextAlign value);
+  external set font(String value);
   external CanvasTextAlign get textAlign;
-  external set textBaseline(CanvasTextBaseline value);
+  external set textAlign(CanvasTextAlign value);
   external CanvasTextBaseline get textBaseline;
-  external set direction(CanvasDirection value);
+  external set textBaseline(CanvasTextBaseline value);
   external CanvasDirection get direction;
-  external set letterSpacing(String value);
+  external set direction(CanvasDirection value);
   external String get letterSpacing;
-  external set fontKerning(CanvasFontKerning value);
+  external set letterSpacing(String value);
   external CanvasFontKerning get fontKerning;
-  external set fontStretch(CanvasFontStretch value);
+  external set fontKerning(CanvasFontKerning value);
   external CanvasFontStretch get fontStretch;
-  external set fontVariantCaps(CanvasFontVariantCaps value);
+  external set fontStretch(CanvasFontStretch value);
   external CanvasFontVariantCaps get fontVariantCaps;
-  external set textRendering(CanvasTextRendering value);
+  external set fontVariantCaps(CanvasFontVariantCaps value);
   external CanvasTextRendering get textRendering;
-  external set wordSpacing(String value);
+  external set textRendering(CanvasTextRendering value);
   external String get wordSpacing;
+  external set wordSpacing(String value);
 }
 
 /// The **`CustomElementRegistry`** interface provides methods for registering
@@ -5263,10 +8286,10 @@ extension type CustomElementRegistry._(JSObject _) implements JSObject {
 extension type ElementDefinitionOptions._(JSObject _) implements JSObject {
   external factory ElementDefinitionOptions({String extends_});
 
-  @JS('extends')
-  external set extends_(String value);
   @JS('extends')
   external String get extends_;
+  @JS('extends')
+  external set extends_(String value);
 }
 
 /// The **`ElementInternals`** interface of the
@@ -5322,12 +8345,43 @@ extension type ElementInternals._(JSObject _) implements JSObject {
   /// however it additionally sends the value of
   /// [ElementInternals.validationMessage] to the user agent for display.
   external bool reportValidity();
+
+  /// The **`shadowRoot`** read-only property of the [ElementInternals]
+  /// interface returns the [ShadowRoot] for this element.
   external ShadowRoot? get shadowRoot;
+
+  /// The **`form`** read-only property of the [ElementInternals] interface
+  /// returns the [HTMLFormElement] associated with this element.
   external HTMLFormElement? get form;
+
+  /// The **`willValidate`** read-only property of the [ElementInternals]
+  /// interface returns `true` if the element is a submittable element that is a
+  /// candidate for
+  /// [constraint validation](https://developer.mozilla.org/en-US/docs/Web/HTML/Constraint_validation).
+  ///
+  /// Elements that are barred from being candidates for constraint validation
+  /// include those that have the attributes: `disabled`, `hidden` or
+  /// `readonly`, input elements of `type=button` or `type=reset`, or any
+  /// element that is a `datalist` element or has a `<datalist>` element
+  /// ancestor.
   external bool get willValidate;
+
+  /// The **`validity`** read-only property of the [ElementInternals] interface
+  /// returns a [ValidityState] object which represents the different validity
+  /// states the element can be in, with respect to constraint validation.
   external ValidityState get validity;
+
+  /// The **`validationMessage`** read-only property of the [ElementInternals]
+  /// interface returns the validation message for the element.
   external String get validationMessage;
+
+  /// The **`labels`** read-only property of the [ElementInternals] interface
+  /// returns the labels associated with the element.
   external NodeList get labels;
+
+  /// The **`states`** read-only property of the [ElementInternals] interface
+  /// returns a [CustomStateSet] representing the possible states of the custom
+  /// element.
   external CustomStateSet get states;
 }
 extension type ValidityStateFlags._(JSObject _) implements JSObject {
@@ -5344,26 +8398,26 @@ extension type ValidityStateFlags._(JSObject _) implements JSObject {
     bool customError,
   });
 
-  external set valueMissing(bool value);
   external bool get valueMissing;
-  external set typeMismatch(bool value);
+  external set valueMissing(bool value);
   external bool get typeMismatch;
-  external set patternMismatch(bool value);
+  external set typeMismatch(bool value);
   external bool get patternMismatch;
-  external set tooLong(bool value);
+  external set patternMismatch(bool value);
   external bool get tooLong;
-  external set tooShort(bool value);
+  external set tooLong(bool value);
   external bool get tooShort;
-  external set rangeUnderflow(bool value);
+  external set tooShort(bool value);
   external bool get rangeUnderflow;
-  external set rangeOverflow(bool value);
+  external set rangeUnderflow(bool value);
   external bool get rangeOverflow;
-  external set stepMismatch(bool value);
+  external set rangeOverflow(bool value);
   external bool get stepMismatch;
-  external set badInput(bool value);
+  external set stepMismatch(bool value);
   external bool get badInput;
-  external set customError(bool value);
+  external set badInput(bool value);
   external bool get customError;
+  external set customError(bool value);
 }
 
 /// The **`CustomStateSet`** interface of the
@@ -5426,7 +8480,12 @@ extension type VisibilityStateEntry._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/UserActivation).
 extension type UserActivation._(JSObject _) implements JSObject {
+  /// The read-only **`hasBeenActive`** property of the [UserActivation]
+  /// interface indicates whether the current window has .
   external bool get hasBeenActive;
+
+  /// The read-only **`isActive`** property of the [UserActivation] interface
+  /// indicates whether the current window has .
   external bool get isActive;
 }
 
@@ -5455,7 +8514,12 @@ extension type ToggleEvent._(JSObject _) implements Event, JSObject {
     ToggleEventInit eventInitDict,
   ]);
 
+  /// The **`oldState`** read-only property of the [ToggleEvent] interface is a
+  /// string representing the state the element is transitioning from.
   external String get oldState;
+
+  /// The **`newState`** read-only property of the [ToggleEvent] interface is a
+  /// string representing the state the element is transitioning to.
   external String get newState;
 }
 extension type ToggleEventInit._(JSObject _) implements EventInit, JSObject {
@@ -5467,10 +8531,10 @@ extension type ToggleEventInit._(JSObject _) implements EventInit, JSObject {
     String newState,
   });
 
-  external set oldState(String value);
   external String get oldState;
-  external set newState(String value);
+  external set oldState(String value);
   external String get newState;
+  external set newState(String value);
 }
 extension type FocusOptions._(JSObject _) implements JSObject {
   external factory FocusOptions({
@@ -5478,10 +8542,10 @@ extension type FocusOptions._(JSObject _) implements JSObject {
     bool focusVisible,
   });
 
-  external set preventScroll(bool value);
   external bool get preventScroll;
-  external set focusVisible(bool value);
+  external set preventScroll(bool value);
   external bool get focusVisible;
+  external set focusVisible(bool value);
 }
 extension type CloseWatcher._(JSObject _) implements EventTarget, JSObject {
   external factory CloseWatcher([CloseWatcherOptions options]);
@@ -5489,16 +8553,16 @@ extension type CloseWatcher._(JSObject _) implements EventTarget, JSObject {
   external void requestClose();
   external void close();
   external void destroy();
-  external set oncancel(EventHandler value);
   external EventHandler get oncancel;
-  external set onclose(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get onclose;
+  external set onclose(EventHandler value);
 }
 extension type CloseWatcherOptions._(JSObject _) implements JSObject {
   external factory CloseWatcherOptions({AbortSignal signal});
 
-  external set signal(AbortSignal value);
   external AbortSignal get signal;
+  external set signal(AbortSignal value);
 }
 
 /// The **`DataTransfer`** object is used to hold the data that is being dragged
@@ -5586,12 +8650,102 @@ extension type DataTransfer._(JSObject _) implements JSObject {
   /// > because that's the only time the drag operation's data store is
   /// > writable.
   external void clearData([String format]);
-  external set dropEffect(String value);
+
+  /// The **`DataTransfer.dropEffect`** property controls the
+  /// feedback (typically visual) the user is given during a drag and drop
+  /// operation. It will
+  /// affect which cursor is displayed while dragging. For example, when the
+  /// user hovers over
+  /// a target drop element, the browser's cursor may indicate which type of
+  /// operation will
+  /// occur.
+  ///
+  /// When the [DataTransfer] object is created, `dropEffect` is set
+  /// to a string value. On getting, it returns its current value. On setting,
+  /// if the new
+  /// value is one of the values listed below, then the property's current value
+  /// will be set
+  /// to the new value and other values will be ignored.
+  ///
+  /// For the [HTMLElement.dragenter_event] and [HTMLElement.dragover_event]
+  /// events,
+  /// `dropEffect` will be initialized based on what action the user is
+  /// requesting.
+  /// How this is determined is platform specific, but typically the user can
+  /// press modifier
+  /// keys such as the alt key to adjust the desired action. Within event
+  /// handlers for
+  /// [HTMLElement.dragenter_event] and [HTMLElement.dragover_event] events,
+  /// `dropEffect` should
+  /// be modified if a different action is desired than the action that the user
+  /// is
+  /// requesting.
+  ///
+  /// For the [HTMLElement.drop_event] and [HTMLElement.dragend_event] events,
+  /// `dropEffect` will
+  /// be set to the action that was desired, which will be the value
+  /// `dropEffect`
+  /// had after the last [HTMLElement.dragenter_event] or
+  /// [HTMLElement.dragover_event] event. In a
+  /// [HTMLElement.dragend_event] event, for instance, if the desired dropEffect
+  /// is "move", then the
+  /// data being dragged should be removed from the source.
   external String get dropEffect;
-  external set effectAllowed(String value);
+  external set dropEffect(String value);
+
+  /// The **`DataTransfer.effectAllowed`** property specifies the
+  /// effect that is allowed for a drag operation. The _copy_ operation is used
+  /// to
+  /// indicate that the data being dragged will be copied from its present
+  /// location to the
+  /// drop location. The _move_ operation is used to indicate that the data
+  /// being
+  /// dragged will be moved, and the _link_ operation is used to indicate that
+  /// some
+  /// form of relationship or connection will be created between the source and
+  /// drop
+  /// locations.
+  ///
+  /// This property should be set in the [HTMLElement.dragstart_event] event to
+  /// set the desired drag
+  /// effect for the drag source. Within the [HTMLElement.dragenter_event] and
+  /// [HTMLElement.dragover_event]
+  /// event handlers, this property will be set to whatever value was assigned
+  /// during the
+  /// [HTMLElement.dragstart_event] event, thus `effectAllowed` may be used to
+  /// determine
+  /// which effect is permitted.
+  ///
+  /// Assigning a value to `effectAllowed` in events other than
+  /// [HTMLElement.dragstart_event] has no effect.
   external String get effectAllowed;
+  external set effectAllowed(String value);
+
+  /// The read-only [DataTransfer] property `items` property is a
+  /// [DataTransferItemList] of the [DataTransferItem] in a drag operation. The
+  /// list includes one item for each item in the operation and if the operation
+  /// had no items, the list is empty.
   external DataTransferItemList get items;
+
+  /// The **`DataTransfer.types`** read-only property returns the available
+  /// types
+  /// that exist in the [DataTransfer.items].
   external JSArray<JSString> get types;
+
+  /// The **`files`** read-only property of
+  /// [`DataTransfer`](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer)
+  /// objects is a [FileList] in the drag operation. If the operation includes
+  /// no files, the list is empty.
+  ///
+  /// This feature can be used to drag files from a user's desktop to the
+  /// browser.
+  ///
+  /// > **Note:** The `files` property of
+  /// > [`DataTransfer`](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer)
+  /// > objects can only be accessed from within the `drop` event. For all other
+  /// > events, the `files` property will be empty — because its underlying data
+  /// > store will be in a
+  /// > [protected mode](https://html.spec.whatwg.org/multipage/dnd.html#the-drag-data-store).
   external FileList get files;
 }
 
@@ -5640,6 +8794,10 @@ extension type DataTransferItemList._(JSObject _) implements JSObject {
   /// in read-only mode, and this method silently does nothing. No exception is
   /// thrown.
   external void clear();
+
+  /// The read-only **`length`** property of the
+  /// [DataTransferItemList] interface returns the number of items currently in
+  /// the drag item list.
   external int get length;
 }
 
@@ -5676,7 +8834,18 @@ extension type DataTransferItem._(JSObject _) implements JSObject {
   /// returns the drag data item's [File] object.
   /// If the item is not a file, this method returns `null`.
   external File? getAsFile();
+
+  /// The read-only **`DataTransferItem.kind`** property returns the kind–a
+  /// string or a file–of the [DataTransferItem] object representing the _drag
+  /// data item_.
   external String get kind;
+
+  /// The read-only **`DataTransferItem.type`** property returns the type
+  /// (format) of the [DataTransferItem] object representing the drag data item.
+  /// The `type` is a Unicode string generally given by a MIME type, although a
+  /// MIME type is not required.
+  ///
+  /// Some example types are: `text/plain` and `text/html`.
   external String get type;
 }
 
@@ -5698,6 +8867,8 @@ extension type DragEvent._(JSObject _) implements MouseEvent, JSObject {
     DragEventInit eventInitDict,
   ]);
 
+  /// The **`DragEvent.dataTransfer`** read-only property holds the drag
+  /// operation's data (as a [DataTransfer] object).
   external DataTransfer? get dataTransfer;
 }
 extension type DragEventInit._(JSObject _) implements MouseEventInit, JSObject {
@@ -5732,8 +8903,8 @@ extension type DragEventInit._(JSObject _) implements MouseEventInit, JSObject {
     DataTransfer? dataTransfer,
   });
 
-  external set dataTransfer(DataTransfer? value);
   external DataTransfer? get dataTransfer;
+  external set dataTransfer(DataTransfer? value);
 }
 @JS()
 external Window get window;
@@ -6049,296 +9220,673 @@ extension type Window._(JSObject _) implements EventTarget, JSObject {
   /// animation frame request previously scheduled through a call to
   /// [window.requestAnimationFrame].
   external void cancelAnimationFrame(int handle);
+
+  /// The [Window] property **`screen`** returns a
+  /// reference to the screen object associated with the window. The `screen`
+  /// object, implementing the [Screen] interface, is a special object for
+  /// inspecting properties of the screen on which the current window is being
+  /// rendered.
   external Screen get screen;
+
+  /// The **`visualViewport`** read-only property of the [Window] interface
+  /// returns a [VisualViewport] object representing the visual viewport for a
+  /// given window, or `null` if current document is not fully active.
   external VisualViewport? get visualViewport;
+
+  /// The read-only [Window] property **`innerWidth`** returns the interior
+  /// width of the window in pixels (that is, the width of the window's ). That
+  /// includes the width of the vertical scroll bar, if one is present.
+  ///
+  /// Similarly, the interior height of the window (that is, the height of the
+  /// layout viewport) can be obtained using the [Window.innerHeight] property.
+  /// That measurement also accounts for the height of the horizontal scroll
+  /// bar, if it is visible.
   external int get innerWidth;
+
+  /// The read-only **`innerHeight`** property of the
+  /// [Window] interface returns the interior height of the window in pixels,
+  /// including the height of the horizontal scroll bar, if present.
+  ///
+  /// The value of `innerHeight` is taken from the height of the window's
+  /// . The width can be obtained using the
+  /// [Window.innerWidth] property.
   external int get innerHeight;
+
+  /// The read-only **`scrollX`** property of the
+  /// [Window] interface returns the number of pixels that the document is
+  /// currently scrolled horizontally. This value is subpixel precise in modern
+  /// browsers,
+  /// meaning that it isn't necessarily a whole number. You can get the number
+  /// of pixels the
+  /// document is scrolled vertically from the [Window.scrollY]
+  /// property.
   external num get scrollX;
   external num get pageXOffset;
+
+  /// The read-only **`scrollY`** property
+  /// of the [Window] interface returns the number of pixels that the document
+  /// is currently scrolled vertically.
+  ///
+  /// This value is subpixel precise in modern
+  /// browsers, meaning that it isn't necessarily a whole number. You can get
+  /// the number of
+  /// pixels the document is scrolled horizontally from the [Window.scrollX]
+  /// property.
   external num get scrollY;
   external num get pageYOffset;
+
+  /// The **`Window.screenX`** read-only property returns the
+  /// horizontal distance, in CSS pixels, of the left border of the user's
+  /// browser viewport to
+  /// the left side of the screen.
+  ///
+  /// > **Note:** An alias of `screenX` was implemented across modern
+  /// > browsers in more recent times — [Window.screenLeft]. This was originally
+  /// > supported only in IE but was introduced everywhere due to popularity.
   external int get screenX;
+
+  /// The **`Window.screenLeft`** read-only property returns the
+  /// horizontal distance, in CSS pixels, from the left border of the user's
+  /// browser viewport
+  /// to the left side of the screen.
+  ///
+  /// > **Note:** `screenLeft` is an alias of the older
+  /// > [Window.screenX] property. `screenLeft` was originally
+  /// > supported only in IE but was introduced everywhere due to popularity.
   external int get screenLeft;
+
+  /// The **`Window.screenY`** read-only property returns the vertical distance,
+  /// in CSS pixels, of the top border of the user's browser viewport to the top
+  /// edge of the screen.
+  ///
+  /// > **Note:** An alias of `screenY` was implemented across modern browsers
+  /// > in more recent times — [Window.screenTop]. This was originally supported
+  /// > only in IE but was introduced everywhere due to popularity.
   external int get screenY;
+
+  /// The **`Window.screenTop`** read-only property returns the
+  /// vertical distance, in CSS pixels, from the top border of the user's
+  /// browser viewport to
+  /// the top side of the screen.
+  ///
+  /// > **Note:** `screenTop` is an alias of the older
+  /// > [Window.screenY] property. `screenTop` was originally
+  /// > supported only in IE but was introduced everywhere due to popularity.
   external int get screenTop;
+
+  /// **`Window.outerWidth`** read-only property returns the width of the
+  /// outside of the browser window. It represents the width of the whole
+  /// browser window including sidebar (if expanded), window chrome and window
+  /// resizing borders/handles.
   external int get outerWidth;
+
+  /// The **`Window.outerHeight`** read-only property returns the height in
+  /// pixels of the whole browser window, including any sidebar, window chrome,
+  /// and window-resizing borders/handles.
   external int get outerHeight;
+
+  /// The **`devicePixelRatio`** of
+  /// [Window] interface returns the ratio of the resolution in _physical
+  /// pixels_ to the resolution in _CSS pixels_ for the current display
+  /// device.
+  ///
+  /// This value could also be interpreted as the ratio of pixel sizes: the
+  /// size of one _CSS pixel_ to the size of one _physical pixel_. In simpler
+  /// terms, this tells the browser how many of the screen's actual pixels
+  /// should be used to
+  /// draw a single CSS pixel.
+  ///
+  /// This is useful when dealing with the difference between rendering on a
+  /// standard display
+  /// versus a HiDPI or Retina display, which use more screen pixels to draw the
+  /// same objects,
+  /// resulting in a sharper image.
+  ///
+  /// You can use [Window.matchMedia] to check if the
+  /// value of `devicePixelRatio` changes (which can happen, for example, if the
+  /// user drags the window to a display with a different pixel density). See
+  /// [the example below](#monitoring_screen_resolution_or_zoom_level_changes).
   external num get devicePixelRatio;
+
+  /// The read-only [Window] property **`event`** returns the [Event] which is
+  /// currently being handled by the site's code. Outside the context of an
+  /// event handler, the value is always `undefined`.
+  ///
+  /// You _should_ avoid using this property in new code, and should instead use
+  /// the [Event] passed into the event handler function. This property is not
+  /// universally supported and even when supported introduces potential
+  /// fragility to your code.
+  ///
+  /// > **Note:** This property can be fragile, in that there may be situations
+  /// > in which the returned `Event` is not the expected value. In addition,
+  /// > `Window.event` is not accurate for events dispatched within .
   external Event? get event;
+
+  /// The **`window`** property of a [Window] object points to the window object
+  /// itself.
+  ///
+  /// Thus, the following expressions all return the same window object:
+  ///
+  /// ```js
+  /// window.window;
+  /// window.window.window;
+  /// window.window.window.window;
+  /// // …
+  /// ```
+  ///
+  /// In web pages, the window object is also a _global object_. This means:
+  ///
+  /// 1. Global variables of your script are, in fact, properties of `window`:
+  ///
+  /// ```js
+  /// var global = { data: 0 };
+  /// alert(global === window.global); // displays "true"
+  /// ```
+  ///
+  /// 2. You can access the built-in properties of the window object without
+  /// having to prefix them with `window.`:
+  ///
+  /// ```js
+  /// setTimeout("alert('Hi!')", 50); // equivalent to using
+  /// window.setTimeout().
+  /// alert(window === window.window); // displays "true"
+  /// ```
+  ///
+  /// The point of having the `window` property refer to the object itself, was
+  /// likely to make it easy to refer to the global object. Otherwise, you'd
+  /// have to do a manual `let window = this;` assignment at the top of your
+  /// script.
+  ///
+  /// Another reason, is that without this property you wouldn't be able to
+  /// write, for example, "". You'd have to use `open('https://google.com/')`
+  /// instead.
+  ///
+  /// Yet another reason to use this property, is for libraries which wish to
+  /// offer OOP-versions, and non-OOP versions (especially JavaScript modules).
+  /// For example, if we refer to "this.window\.location.href", a
+  /// [JavaScript module](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules)
+  /// could define a property called "window" inside of a class it defined
+  /// (since no global "window" variable exists for it by default) which could
+  /// be created after passing in a window object to the module class'
+  /// constructor. Thus, "this.window" inside of its functions would refer to
+  /// that window object. In the non-namespaced version, "this.window" would
+  /// refer back to "window", and also be able to readily get the document
+  /// location. Another advantage, is that the objects of such a class (even if
+  /// the class were defined outside of a module) could change their reference
+  /// to the window at will, they would not be able to do this if they had
+  /// hard-coded a reference to "window". The default in the class could still
+  /// be set as the current window object.
   external Window get window;
+
+  /// The **`Window.self`** read-only property returns the window itself, as a .
+  /// It can be used with dot notation on a `window` object (that is,
+  /// `window.self`) or standalone (`self`). The advantage of the standalone
+  /// notation is that a similar notation exists for non-window contexts, such
+  /// as in [Worker]. By using `self`, you can refer to the global scope in a
+  /// way that will work not only in a window context (`self` will resolve to
+  /// `window.self`) but also in a worker context (`self` will then resolve to
+  /// [WorkerGlobalScope.self]).
   external Window get self;
+
+  /// **`window.document`** returns a reference to the
+  /// [document](https://developer.mozilla.org/en-US/docs/Web/API/Document)
+  /// contained in the window.
   external Document get document;
-  external set name(String value);
+
+  /// The `Window.name` property
+  /// gets/sets the name of the window's browsing context.
   external String get name;
+  external set name(String value);
+
+  /// The **`Window.location`** read-only property returns a [Location] object
+  /// with information about the current location of the document.
+  ///
+  /// Though `Window.location` is a _read-only_ `Location` object, you can also
+  /// assign a string to it.
+  /// This means that you can work with `location` as if it were a string in
+  /// most cases:
+  /// `location = 'http://www.example.com'` is a synonym of `location.href =
+  /// 'http://www.example.com'`.
+  ///
+  /// See [Location] for all available properties.
   external Location get location;
+
+  /// The `Window.history` read-only property returns a reference to the
+  /// [History] object, which provides an interface for manipulating the browser
+  /// _session history_ (pages visited in the tab or frame that the current page
+  /// is loaded in).
+  ///
+  /// See
+  /// [Manipulating the browser history](https://developer.mozilla.org/en-US/docs/Web/API/History_API)
+  /// for examples and details. In particular, that article explains security
+  /// features of the [History.pushState] and [History.replaceState] methods
+  /// that you should be aware of before using them.
   external History get history;
+
+  /// The **`navigation`** read-only property of the [Window] interface returns
+  /// the current `window`'s associated [Navigation] object.
+  ///
+  /// This is the entry point for the [Navigation API].
   external Navigation get navigation;
+
+  /// The **`customElements`** read-only property of the [Window] interface
+  /// returns a reference to the [CustomElementRegistry] object, which can be
+  /// used to register new
+  /// [custom elements](https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_custom_elements)
+  /// and get information about previously registered custom elements.
   external CustomElementRegistry get customElements;
+
+  /// Returns the `locationbar` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get locationbar;
+
+  /// Returns the `menubar` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get menubar;
+
+  /// Returns the `personalbar` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get personalbar;
+
+  /// Returns the `scrollbars` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get scrollbars;
+
+  /// Returns the `statusbar` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get statusbar;
+
+  /// Returns the `toolbar` object.
+  ///
+  /// This is one of a group of `Window` properties that contain a boolean
+  /// `visible` property, that used to represent whether or not a particular
+  /// part of a web browser's user interface was visible.
+  ///
+  /// For privacy and interoperability reasons, the value of the `visible`
+  /// property is now `false` if this `Window` is a popup, and `true` otherwise.
   external BarProp get toolbar;
-  external set status(String value);
+
+  /// The **`status`** property of the
+  /// [Window] interface was originally intended to set the text in the status
+  /// bar at the bottom of the browser window. However, the HTML standard now
+  /// requires
+  /// setting `window.status` to have no effect on the text displayed in the
+  /// status bar.
   external String get status;
+  external set status(String value);
+
+  /// The **`Window.closed`** read-only property indicates whether
+  /// the referenced window is closed or not.
   external bool get closed;
+
+  /// Returns the window itself, which is an array-like object, listing the
+  /// direct sub-frames
+  /// of the current window.
   external Window get frames;
+
+  /// Returns the number of frames (either `frame` or
+  /// `iframe` elements) in the window.
   external int get length;
+
+  /// Returns a reference to the topmost window in the window hierarchy.
   external Window? get top;
-  external set opener(JSAny? value);
+
+  /// The [Window] interface's
+  /// **`opener`** property returns a reference to the window that
+  /// opened the window, either with [Window.open], or by navigating
+  /// a link with a
+  /// [`target`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#target)
+  /// attribute.
+  ///
+  /// In other words, if window `A` opens window `B`,
+  /// `B.opener` returns `A`.
   external JSAny? get opener;
+  external set opener(JSAny? value);
+
+  /// The **`Window.parent`** property is a reference to the parent
+  /// of the current window or subframe.
+  ///
+  /// If a window does not have a parent, its `parent` property is a reference
+  /// to
+  /// itself.
+  ///
+  /// When a window is loaded in an `iframe`, `object`, or
+  /// `frame`, its parent is the window with the element embedding the
+  /// window.
   external Window? get parent;
+
+  /// The **`Window.frameElement`** property
+  /// returns the element (such as `iframe` or `object`)
+  /// in which the window is embedded.
+  ///
+  /// > **Note:** Despite this property's name, it works for documents embedded
+  /// > within any embedding point, including `object`,
+  /// > `iframe`, or `embed`.
   external Element? get frameElement;
+
+  /// The **`Window.navigator`** read-only property returns a
+  /// reference to the [Navigator] object, which has methods and properties
+  /// about
+  /// the application running the script.
   external Navigator get navigator;
   external Navigator get clientInformation;
+
+  /// The **`originAgentCluster`** read-only property of the [Window] interface
+  /// returns `true` if this window belongs to an _origin-keyed
+  /// [agent cluster](https://tc39.es/ecma262/#sec-agent-clusters)_: this means
+  /// that the operating system has provided dedicated resources (for example an
+  /// operating system process) to this window's origin that are not shared with
+  /// windows from other origins.
+  ///
+  /// Otherwise this property returns `false`.
+  ///
+  /// Windows that are part of an origin-keyed agent cluster are subjects to
+  /// some additional restrictions, compared with windows that are not. In
+  /// particular, they cannot:
+  ///
+  /// - Set [Document.domain], which is a legacy feature that normally allows
+  ///   same-site cross-origin pages to synchronously access each other's DOM.
+  /// - Send
+  ///   [`WebAssembly.Module`](https://developer.mozilla.org/en-US/docs/WebAssembly/JavaScript_interface/Module)
+  ///   objects to other same-site cross-origin pages via [Window.postMessage].
+  /// - Send `SharedArrayBuffer` or
+  ///   [`WebAssembly.Memory`](https://developer.mozilla.org/en-US/docs/WebAssembly/JavaScript_interface/Memory)
+  ///   objects to other same-site cross-origin pages.
+  ///
+  /// To request that the browser assign this window to an origin-keyed agent
+  /// cluster, the server must send the  response header.
+  ///
+  /// Note that the origin-keyed agent cluster feature is only supported in . If
+  /// a site is not a secure context, the `window.originAgentCluster` will
+  /// always return `false`.
   external bool get originAgentCluster;
+
+  /// The `external` property of the [Window] API returns an instance of the
+  /// `External` interface, which was intended to contain functions related to
+  /// adding external search providers to the browser. However, this is now
+  /// deprecated, and the contained methods are now dummy functions that do
+  /// nothing as per spec.
   external External get external;
-  external set ondeviceorientation(EventHandler value);
   external EventHandler get ondeviceorientation;
-  external set ondeviceorientationabsolute(EventHandler value);
+  external set ondeviceorientation(EventHandler value);
   external EventHandler get ondeviceorientationabsolute;
-  external set ondevicemotion(EventHandler value);
+  external set ondeviceorientationabsolute(EventHandler value);
   external EventHandler get ondevicemotion;
+  external set ondevicemotion(EventHandler value);
+
+  /// The `speechSynthesis` read-only property of the Window object returns a
+  /// [SpeechSynthesis] object, which is the entry point into using
+  /// [Web Speech API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Speech_API)
+  /// speech synthesis functionality.
   external SpeechSynthesis get speechSynthesis;
-  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationstart;
-  external set onanimationiteration(EventHandler value);
+  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationiteration;
-  external set onanimationend(EventHandler value);
+  external set onanimationiteration(EventHandler value);
   external EventHandler get onanimationend;
-  external set onanimationcancel(EventHandler value);
+  external set onanimationend(EventHandler value);
   external EventHandler get onanimationcancel;
-  external set ontransitionrun(EventHandler value);
+  external set onanimationcancel(EventHandler value);
   external EventHandler get ontransitionrun;
-  external set ontransitionstart(EventHandler value);
+  external set ontransitionrun(EventHandler value);
   external EventHandler get ontransitionstart;
-  external set ontransitionend(EventHandler value);
+  external set ontransitionstart(EventHandler value);
   external EventHandler get ontransitionend;
-  external set ontransitioncancel(EventHandler value);
+  external set ontransitionend(EventHandler value);
   external EventHandler get ontransitioncancel;
-  external set onabort(EventHandler value);
+  external set ontransitioncancel(EventHandler value);
   external EventHandler get onabort;
-  external set onauxclick(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onauxclick;
-  external set onbeforeinput(EventHandler value);
+  external set onauxclick(EventHandler value);
   external EventHandler get onbeforeinput;
-  external set onbeforematch(EventHandler value);
+  external set onbeforeinput(EventHandler value);
   external EventHandler get onbeforematch;
-  external set onbeforetoggle(EventHandler value);
+  external set onbeforematch(EventHandler value);
   external EventHandler get onbeforetoggle;
-  external set onblur(EventHandler value);
+  external set onbeforetoggle(EventHandler value);
   external EventHandler get onblur;
-  external set oncancel(EventHandler value);
+  external set onblur(EventHandler value);
   external EventHandler get oncancel;
-  external set oncanplay(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get oncanplay;
-  external set oncanplaythrough(EventHandler value);
+  external set oncanplay(EventHandler value);
   external EventHandler get oncanplaythrough;
-  external set onchange(EventHandler value);
+  external set oncanplaythrough(EventHandler value);
   external EventHandler get onchange;
-  external set onclick(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onclick;
-  external set onclose(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onclose;
-  external set oncontextlost(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get oncontextlost;
-  external set oncontextmenu(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextmenu;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextmenu(EventHandler value);
   external EventHandler get oncontextrestored;
-  external set oncopy(EventHandler value);
+  external set oncontextrestored(EventHandler value);
   external EventHandler get oncopy;
-  external set oncuechange(EventHandler value);
+  external set oncopy(EventHandler value);
   external EventHandler get oncuechange;
-  external set oncut(EventHandler value);
+  external set oncuechange(EventHandler value);
   external EventHandler get oncut;
-  external set ondblclick(EventHandler value);
+  external set oncut(EventHandler value);
   external EventHandler get ondblclick;
-  external set ondrag(EventHandler value);
+  external set ondblclick(EventHandler value);
   external EventHandler get ondrag;
-  external set ondragend(EventHandler value);
+  external set ondrag(EventHandler value);
   external EventHandler get ondragend;
-  external set ondragenter(EventHandler value);
+  external set ondragend(EventHandler value);
   external EventHandler get ondragenter;
-  external set ondragleave(EventHandler value);
+  external set ondragenter(EventHandler value);
   external EventHandler get ondragleave;
-  external set ondragover(EventHandler value);
+  external set ondragleave(EventHandler value);
   external EventHandler get ondragover;
-  external set ondragstart(EventHandler value);
+  external set ondragover(EventHandler value);
   external EventHandler get ondragstart;
-  external set ondrop(EventHandler value);
+  external set ondragstart(EventHandler value);
   external EventHandler get ondrop;
-  external set ondurationchange(EventHandler value);
+  external set ondrop(EventHandler value);
   external EventHandler get ondurationchange;
-  external set onemptied(EventHandler value);
+  external set ondurationchange(EventHandler value);
   external EventHandler get onemptied;
-  external set onended(EventHandler value);
+  external set onemptied(EventHandler value);
   external EventHandler get onended;
-  external set onerror(OnErrorEventHandler value);
+  external set onended(EventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onfocus(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onfocus;
-  external set onformdata(EventHandler value);
+  external set onfocus(EventHandler value);
   external EventHandler get onformdata;
-  external set oninput(EventHandler value);
+  external set onformdata(EventHandler value);
   external EventHandler get oninput;
-  external set oninvalid(EventHandler value);
+  external set oninput(EventHandler value);
   external EventHandler get oninvalid;
-  external set onkeydown(EventHandler value);
+  external set oninvalid(EventHandler value);
   external EventHandler get onkeydown;
-  external set onkeypress(EventHandler value);
+  external set onkeydown(EventHandler value);
   external EventHandler get onkeypress;
-  external set onkeyup(EventHandler value);
+  external set onkeypress(EventHandler value);
   external EventHandler get onkeyup;
-  external set onload(EventHandler value);
+  external set onkeyup(EventHandler value);
   external EventHandler get onload;
-  external set onloadeddata(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onloadeddata;
-  external set onloadedmetadata(EventHandler value);
+  external set onloadeddata(EventHandler value);
   external EventHandler get onloadedmetadata;
-  external set onloadstart(EventHandler value);
+  external set onloadedmetadata(EventHandler value);
   external EventHandler get onloadstart;
-  external set onmousedown(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onmousedown;
-  external set onmouseenter(EventHandler value);
+  external set onmousedown(EventHandler value);
   external EventHandler get onmouseenter;
-  external set onmouseleave(EventHandler value);
+  external set onmouseenter(EventHandler value);
   external EventHandler get onmouseleave;
-  external set onmousemove(EventHandler value);
+  external set onmouseleave(EventHandler value);
   external EventHandler get onmousemove;
-  external set onmouseout(EventHandler value);
+  external set onmousemove(EventHandler value);
   external EventHandler get onmouseout;
-  external set onmouseover(EventHandler value);
+  external set onmouseout(EventHandler value);
   external EventHandler get onmouseover;
-  external set onmouseup(EventHandler value);
+  external set onmouseover(EventHandler value);
   external EventHandler get onmouseup;
-  external set onpaste(EventHandler value);
+  external set onmouseup(EventHandler value);
   external EventHandler get onpaste;
-  external set onpause(EventHandler value);
+  external set onpaste(EventHandler value);
   external EventHandler get onpause;
-  external set onplay(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onplay;
-  external set onplaying(EventHandler value);
+  external set onplay(EventHandler value);
   external EventHandler get onplaying;
-  external set onprogress(EventHandler value);
+  external set onplaying(EventHandler value);
   external EventHandler get onprogress;
-  external set onratechange(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onratechange;
-  external set onreset(EventHandler value);
+  external set onratechange(EventHandler value);
   external EventHandler get onreset;
-  external set onresize(EventHandler value);
+  external set onreset(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
-  external set onsecuritypolicyviolation(EventHandler value);
+  external set onscrollend(EventHandler value);
   external EventHandler get onsecuritypolicyviolation;
-  external set onseeked(EventHandler value);
+  external set onsecuritypolicyviolation(EventHandler value);
   external EventHandler get onseeked;
-  external set onseeking(EventHandler value);
+  external set onseeked(EventHandler value);
   external EventHandler get onseeking;
-  external set onselect(EventHandler value);
+  external set onseeking(EventHandler value);
   external EventHandler get onselect;
-  external set onslotchange(EventHandler value);
+  external set onselect(EventHandler value);
   external EventHandler get onslotchange;
-  external set onstalled(EventHandler value);
+  external set onslotchange(EventHandler value);
   external EventHandler get onstalled;
-  external set onsubmit(EventHandler value);
+  external set onstalled(EventHandler value);
   external EventHandler get onsubmit;
-  external set onsuspend(EventHandler value);
+  external set onsubmit(EventHandler value);
   external EventHandler get onsuspend;
-  external set ontimeupdate(EventHandler value);
+  external set onsuspend(EventHandler value);
   external EventHandler get ontimeupdate;
-  external set ontoggle(EventHandler value);
+  external set ontimeupdate(EventHandler value);
   external EventHandler get ontoggle;
-  external set onvolumechange(EventHandler value);
+  external set ontoggle(EventHandler value);
   external EventHandler get onvolumechange;
-  external set onwaiting(EventHandler value);
+  external set onvolumechange(EventHandler value);
   external EventHandler get onwaiting;
-  external set onwebkitanimationend(EventHandler value);
+  external set onwaiting(EventHandler value);
   external EventHandler get onwebkitanimationend;
-  external set onwebkitanimationiteration(EventHandler value);
+  external set onwebkitanimationend(EventHandler value);
   external EventHandler get onwebkitanimationiteration;
-  external set onwebkitanimationstart(EventHandler value);
+  external set onwebkitanimationiteration(EventHandler value);
   external EventHandler get onwebkitanimationstart;
-  external set onwebkittransitionend(EventHandler value);
+  external set onwebkitanimationstart(EventHandler value);
   external EventHandler get onwebkittransitionend;
-  external set onwheel(EventHandler value);
+  external set onwebkittransitionend(EventHandler value);
   external EventHandler get onwheel;
-  external set onpointerover(EventHandler value);
+  external set onwheel(EventHandler value);
   external EventHandler get onpointerover;
-  external set onpointerenter(EventHandler value);
+  external set onpointerover(EventHandler value);
   external EventHandler get onpointerenter;
-  external set onpointerdown(EventHandler value);
+  external set onpointerenter(EventHandler value);
   external EventHandler get onpointerdown;
-  external set onpointermove(EventHandler value);
+  external set onpointerdown(EventHandler value);
   external EventHandler get onpointermove;
-  external set onpointerrawupdate(EventHandler value);
+  external set onpointermove(EventHandler value);
   external EventHandler get onpointerrawupdate;
-  external set onpointerup(EventHandler value);
+  external set onpointerrawupdate(EventHandler value);
   external EventHandler get onpointerup;
-  external set onpointercancel(EventHandler value);
+  external set onpointerup(EventHandler value);
   external EventHandler get onpointercancel;
-  external set onpointerout(EventHandler value);
+  external set onpointercancel(EventHandler value);
   external EventHandler get onpointerout;
-  external set onpointerleave(EventHandler value);
+  external set onpointerout(EventHandler value);
   external EventHandler get onpointerleave;
-  external set ongotpointercapture(EventHandler value);
+  external set onpointerleave(EventHandler value);
   external EventHandler get ongotpointercapture;
-  external set onlostpointercapture(EventHandler value);
+  external set ongotpointercapture(EventHandler value);
   external EventHandler get onlostpointercapture;
-  external set onselectstart(EventHandler value);
+  external set onlostpointercapture(EventHandler value);
   external EventHandler get onselectstart;
-  external set onselectionchange(EventHandler value);
+  external set onselectstart(EventHandler value);
   external EventHandler get onselectionchange;
-  external set ontouchstart(EventHandler value);
+  external set onselectionchange(EventHandler value);
   external EventHandler get ontouchstart;
-  external set ontouchend(EventHandler value);
+  external set ontouchstart(EventHandler value);
   external EventHandler get ontouchend;
-  external set ontouchmove(EventHandler value);
+  external set ontouchend(EventHandler value);
   external EventHandler get ontouchmove;
-  external set ontouchcancel(EventHandler value);
+  external set ontouchmove(EventHandler value);
   external EventHandler get ontouchcancel;
-  external set ongamepadconnected(EventHandler value);
+  external set ontouchcancel(EventHandler value);
   external EventHandler get ongamepadconnected;
-  external set ongamepaddisconnected(EventHandler value);
+  external set ongamepadconnected(EventHandler value);
   external EventHandler get ongamepaddisconnected;
-  external set onafterprint(EventHandler value);
+  external set ongamepaddisconnected(EventHandler value);
   external EventHandler get onafterprint;
-  external set onbeforeprint(EventHandler value);
+  external set onafterprint(EventHandler value);
   external EventHandler get onbeforeprint;
-  external set onbeforeunload(OnBeforeUnloadEventHandler value);
+  external set onbeforeprint(EventHandler value);
   external OnBeforeUnloadEventHandler get onbeforeunload;
-  external set onhashchange(EventHandler value);
+  external set onbeforeunload(OnBeforeUnloadEventHandler value);
   external EventHandler get onhashchange;
-  external set onlanguagechange(EventHandler value);
+  external set onhashchange(EventHandler value);
   external EventHandler get onlanguagechange;
-  external set onmessage(EventHandler value);
+  external set onlanguagechange(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onoffline(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onoffline;
-  external set ononline(EventHandler value);
+  external set onoffline(EventHandler value);
   external EventHandler get ononline;
-  external set onpagehide(EventHandler value);
+  external set ononline(EventHandler value);
   external EventHandler get onpagehide;
-  external set onpagereveal(EventHandler value);
+  external set onpagehide(EventHandler value);
   external EventHandler get onpagereveal;
-  external set onpageshow(EventHandler value);
+  external set onpagereveal(EventHandler value);
   external EventHandler get onpageshow;
-  external set onpopstate(EventHandler value);
+  external set onpageshow(EventHandler value);
   external EventHandler get onpopstate;
-  external set onrejectionhandled(EventHandler value);
+  external set onpopstate(EventHandler value);
   external EventHandler get onrejectionhandled;
-  external set onstorage(EventHandler value);
+  external set onrejectionhandled(EventHandler value);
   external EventHandler get onstorage;
-  external set onunhandledrejection(EventHandler value);
+  external set onstorage(EventHandler value);
   external EventHandler get onunhandledrejection;
-  external set onunload(EventHandler value);
+  external set onunhandledrejection(EventHandler value);
   external EventHandler get onunload;
+  external set onunload(EventHandler value);
   external IDBFactory get indexedDB;
   external Crypto get crypto;
   external Performance get performance;
@@ -6347,7 +9895,56 @@ extension type Window._(JSObject _) implements EventTarget, JSObject {
   external bool get crossOriginIsolated;
   external CacheStorage get caches;
   external TrustedTypePolicyFactory get trustedTypes;
+
+  /// The read-only **`sessionStorage`**
+  /// property accesses a session [Storage] object for the current
+  /// . `sessionStorage` is similar to
+  /// [Window.localStorage]; the difference is that while data
+  /// in `localStorage` doesn't expire, data in `sessionStorage` is
+  /// cleared when the _page session_ ends.
+  ///
+  /// - Whenever a document is loaded in a particular tab in the browser, a
+  ///   unique page
+  /// session gets created and assigned to that particular tab. That page
+  /// session is valid
+  /// only for that particular tab.
+  /// - A page session lasts as long as the tab or the browser is open, and
+  ///   survives over
+  /// page reloads and restores.
+  /// - **Opening a page in a new tab or window creates a new session with the
+  ///   value
+  /// of the top-level browsing context, which differs from how session cookies
+  /// work.**
+  /// - Opening multiple tabs/windows with the same URL creates `sessionStorage`
+  /// for each tab/window.
+  /// - Duplicating a tab copies the tab's `sessionStorage` into the new
+  /// tab.
+  /// - Closing a tab/window ends the session and clears objects in
+  /// `sessionStorage`.
+  ///
+  /// Data stored in `sessionStorage` **is specific to the protocol of the
+  /// page**. In particular, data stored by a script on a site accessed with
+  /// HTTP
+  /// (e.g., [http://example.com](https://example.com)) is
+  /// put in a different `sessionStorage` object from the same site accessed
+  /// with
+  /// HTTPS (e.g., <https://example.com>).
+  ///
+  /// The keys and the values are _always_ in the UTF-16 string
+  /// format, which uses two bytes per character. As with objects, integer keys
+  /// are
+  /// automatically converted to strings.
   external Storage get sessionStorage;
+
+  /// The **`localStorage`** read-only property of the [window] interface allows
+  /// you to access a [Storage] object for the [Document]'s ; the stored data is
+  /// saved across browser sessions.
+  ///
+  /// `localStorage` is similar to [Window.sessionStorage], except that while
+  /// `localStorage` data has no expiration time, `sessionStorage` data gets
+  /// cleared when the page session ends — that is, when the page is closed.
+  /// (`localStorage` data for a document loaded in a "private browsing" or
+  /// "incognito" session is cleared when the last "private" tab is closed.)
   external Storage get localStorage;
 }
 extension type WindowPostMessageOptions._(JSObject _)
@@ -6357,8 +9954,8 @@ extension type WindowPostMessageOptions._(JSObject _)
     String targetOrigin,
   });
 
-  external set targetOrigin(String value);
   external String get targetOrigin;
+  external set targetOrigin(String value);
 }
 
 /// The **`BarProp`** interface of the [Document Object Model] represents the
@@ -6387,6 +9984,8 @@ extension type WindowPostMessageOptions._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/BarProp).
 extension type BarProp._(JSObject _) implements JSObject {
+  /// The **`visible`** read-only property of the [BarProp] interface returns
+  /// `true` if the user interface element it represents is visible.
   external bool get visible;
 }
 
@@ -6419,23 +10018,106 @@ extension type Location._(JSObject _) implements JSObject {
   /// The **`reload()`** method of the [Location] interface reloads the current
   /// URL, like the Refresh button.
   external void reload();
-  external set href(String value);
+
+  /// The **`href`** property of the [Location]
+  /// interface is a  that returns a string containing the whole
+  /// URL, and allows the href to be updated.
+  ///
+  /// Setting the value of `href` _navigates_ to the provided URL. If you
+  /// want _redirection_, use [Location.replace]. The difference from setting
+  /// the `href` property value is that when using the `location.replace()`
+  /// method, after navigating to the given URL, the current page will not be
+  /// saved in session
+  /// [history](https://developer.mozilla.org/en-US/docs/Web/API/History_API) —
+  /// meaning the user won't be able to use the back button to navigate to it.
   external String get href;
+  external set href(String value);
+
+  /// The **`origin`** read-only property of
+  /// the [Location] interface is a string containing the
+  /// Unicode serialization of the origin of the represented URL.
+  ///
+  /// That is:
+  ///
+  /// - for URL using the `http` or `https`, the scheme followed by
+  /// `'://'`, followed by the domain, followed by `':'`, followed by
+  /// the port (the default port, `80` and `443` respectively, if
+  /// explicitly specified);
+  /// - for URL using `file:` scheme, the value is browser dependent;
+  /// - for URL using the `blob:` scheme, the origin of the URL following
+  /// `blob:`. E.g `"blob:https://mozilla.org"` will have
+  /// `"https://mozilla.org".`
   external String get origin;
-  external set protocol(String value);
+
+  /// The **`protocol`** property of the [Location]
+  /// interface is a string representing the protocol scheme of the URL,
+  /// including the final `':'`.
   external String get protocol;
-  external set host(String value);
+  external set protocol(String value);
+
+  /// The **`host`** property of the [Location]
+  /// interface is a string containing the host, that is the
+  /// _hostname_, and then, if the _port_ of the URL is nonempty, a
+  /// `':'`, and the _port_ of the URL.
   external String get host;
-  external set hostname(String value);
+  external set host(String value);
+
+  /// The **`hostname`** property of the [Location]
+  /// interface is a string containing the domain of the URL.
   external String get hostname;
-  external set port(String value);
+  external set hostname(String value);
+
+  /// The **`port`** property of the [Location]
+  /// interface is a string containing the port number of the URL. If the
+  /// URL does not contain an explicit port number, it will be set to `''`.
   external String get port;
-  external set pathname(String value);
+  external set port(String value);
+
+  /// The **`pathname`** property of the [Location]
+  /// interface is a string containing the path of the URL for the location. If
+  /// there is no path, `pathname` will be empty: otherwise, `pathname` contains
+  /// an initial '/' followed by the path of the URL, not including the query
+  /// string or fragment.
   external String get pathname;
-  external set search(String value);
+  external set pathname(String value);
+
+  /// The **`search`** property of the [Location]
+  /// interface is a search string, also called a _query string_; that is, a
+  /// string containing a `'?'` followed by the parameters of the
+  /// URL.
+  ///
+  /// Modern browsers provide
+  /// [`URLSearchParams`](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams/get#examples)
+  /// and
+  /// [`URL.searchParams`](/en-US/docs/Web/API/URL/searchParams#examples)
+  /// to make it easy to parse out the parameters from the querystring.
   external String get search;
-  external set hash(String value);
+  external set search(String value);
+
+  /// The **`hash`** property of the
+  /// [Location] interface returns a string containing a
+  /// `'#'` followed by the fragment identifier of the URL — the ID on the page
+  /// that the URL is trying to target.
+  ///
+  /// The fragment is not
+  /// [URL decoded](https://en.wikipedia.org/wiki/URL_encoding). If the URL does
+  /// not
+  /// have a fragment identifier, this property contains an empty string, `""`.
   external String get hash;
+  external set hash(String value);
+
+  /// The **`ancestorOrigins`** read-only
+  /// property of the [Location] interface is a static
+  /// [DOMStringList] containing, in reverse order, the origins of all ancestor
+  /// browsing contexts of the document associated with the given [Location]
+  /// object.
+  ///
+  /// You can use `location.ancestorOrigins` in the script for a document to
+  /// determine, for example, whenever the document is being framed by a site
+  /// which you don't
+  /// expect it to be framed by. You can also use it to vary the behavior of the
+  /// document
+  /// based on what site or list of sites is framing it.
   external DOMStringList get ancestorOrigins;
 }
 
@@ -6507,9 +10189,26 @@ extension type History._(JSObject _) implements JSObject {
     String unused, [
     String? url,
   ]);
+
+  /// The **`length`** read-only property of the [History] interface
+  /// returns an integer representing the number of elements in the session
+  /// history, including the currently loaded page.
+  ///
+  /// For example, for a page loaded in a new tab this property returns `1`.
   external int get length;
-  external set scrollRestoration(ScrollRestoration value);
+
+  /// The **`scrollRestoration`** property of the [History]
+  /// interface allows web applications to explicitly set default scroll
+  /// restoration behavior
+  /// on history navigation.
   external ScrollRestoration get scrollRestoration;
+  external set scrollRestoration(ScrollRestoration value);
+
+  /// The **`state`** read-only property of the [History] interface
+  /// returns a value representing the state at the top of the history stack.
+  /// This is
+  /// a way to look at the state without having to wait for a
+  /// [Window.popstate_event] event.
   external JSAny? get state;
 }
 
@@ -6572,32 +10271,54 @@ extension type Navigation._(JSObject _) implements EventTarget, JSObject {
   /// [Navigation] interface navigates forwards by one entry in the navigation
   /// history.
   external NavigationResult forward([NavigationOptions options]);
+
+  /// The **`currentEntry`** read-only property of the
+  /// [Navigation] interface returns a [NavigationHistoryEntry] object
+  /// representing the location the user is currently navigated to right now.
   external NavigationHistoryEntry? get currentEntry;
+
+  /// The **`transition`** read-only property of the [Navigation] interface
+  /// returns a [NavigationTransition] object representing the status of an
+  /// in-progress navigation, which can be used to track it.
   external NavigationTransition? get transition;
   external NavigationActivation? get activation;
+
+  /// The **`canGoBack`** read-only property of the
+  /// [Navigation] interface returns `true`
+  /// if it is possible to navigate backwards in the navigation history
+  /// (i.e. the [Navigation.currentEntry] is
+  /// not the first one in the history entry list),
+  /// and `false` if it is not.
   external bool get canGoBack;
+
+  /// The **`canGoForward`** read-only property of the
+  /// [Navigation] interface returns `true` if it is possible to navigate
+  /// forwards in the navigation history
+  /// (i.e. the [Navigation.currentEntry] is not the last one in the history
+  /// entry list),
+  /// and `false` if it is not.
   external bool get canGoForward;
-  external set onnavigate(EventHandler value);
   external EventHandler get onnavigate;
-  external set onnavigatesuccess(EventHandler value);
+  external set onnavigate(EventHandler value);
   external EventHandler get onnavigatesuccess;
-  external set onnavigateerror(EventHandler value);
+  external set onnavigatesuccess(EventHandler value);
   external EventHandler get onnavigateerror;
-  external set oncurrententrychange(EventHandler value);
+  external set onnavigateerror(EventHandler value);
   external EventHandler get oncurrententrychange;
+  external set oncurrententrychange(EventHandler value);
 }
 extension type NavigationUpdateCurrentEntryOptions._(JSObject _)
     implements JSObject {
   external factory NavigationUpdateCurrentEntryOptions({required JSAny? state});
 
-  external set state(JSAny? value);
   external JSAny? get state;
+  external set state(JSAny? value);
 }
 extension type NavigationOptions._(JSObject _) implements JSObject {
   external factory NavigationOptions({JSAny? info});
 
-  external set info(JSAny? value);
   external JSAny? get info;
+  external set info(JSAny? value);
 }
 extension type NavigationNavigateOptions._(JSObject _)
     implements NavigationOptions, JSObject {
@@ -6607,10 +10328,10 @@ extension type NavigationNavigateOptions._(JSObject _)
     NavigationHistoryBehavior history,
   });
 
-  external set state(JSAny? value);
   external JSAny? get state;
-  external set history(NavigationHistoryBehavior value);
+  external set state(JSAny? value);
   external NavigationHistoryBehavior get history;
+  external set history(NavigationHistoryBehavior value);
 }
 extension type NavigationReloadOptions._(JSObject _)
     implements NavigationOptions, JSObject {
@@ -6619,8 +10340,8 @@ extension type NavigationReloadOptions._(JSObject _)
     JSAny? state,
   });
 
-  external set state(JSAny? value);
   external JSAny? get state;
+  external set state(JSAny? value);
 }
 extension type NavigationResult._(JSObject _) implements JSObject {
   external factory NavigationResult({
@@ -6628,10 +10349,10 @@ extension type NavigationResult._(JSObject _) implements JSObject {
     JSPromise<NavigationHistoryEntry> finished,
   });
 
-  external set committed(JSPromise<NavigationHistoryEntry> value);
   external JSPromise<NavigationHistoryEntry> get committed;
-  external set finished(JSPromise<NavigationHistoryEntry> value);
+  external set committed(JSPromise<NavigationHistoryEntry> value);
   external JSPromise<NavigationHistoryEntry> get finished;
+  external set finished(JSPromise<NavigationHistoryEntry> value);
 }
 
 /// The **`NavigationHistoryEntry`** interface of the [Navigation API]
@@ -6657,13 +10378,57 @@ extension type NavigationHistoryEntry._(JSObject _)
   /// returns a clone of the developer-supplied state associated with this
   /// history entry.
   external JSAny? getState();
+
+  /// The **`url`** read-only property of the [NavigationHistoryEntry] interface
+  /// returns the absolute URL of this history entry. If the entry corresponds
+  /// to a different Document than the current one (like `sameDocument` property
+  /// is `false`), and that Document was fetched with a  header set to
+  /// `no-referrer` or `origin`, the property returns `null`. If current
+  /// document is not fully active, it returns an empty string.
   external String? get url;
+
+  /// The **`key`** read-only property of the [NavigationHistoryEntry] interface
+  /// returns the `key` of the history entry, or an empty string if current
+  /// document is not fully active. This is a unique, UA-generated value that
+  /// represents the history entry's slot in the entries list. It is used to
+  /// navigate that particular slot via [Navigation.traverseTo]. The `key` will
+  /// be reused by other entries that replace the entry in the list (that is, if
+  /// the [NavigateEvent.navigationType] is `replace`).
+  ///
+  /// This differs from the [NavigationHistoryEntry.id] of a history entry. The
+  /// `id` is a unique, UA-generated value that always represents a specific
+  /// history entry rather than its slot in the entries list. This is useful to
+  /// correlate it with an external resource such as a storage cache.
   external String get key;
+
+  /// The **`id`** read-only property of the [NavigationHistoryEntry] interface
+  /// returns the `id` of the history entry, or an empty string if current
+  /// document is not fully active. This is a unique, UA-generated value that
+  /// always represents a specific history entry, useful to correlate it with an
+  /// external resource such as a storage cache.
+  ///
+  /// This differs from the [NavigationHistoryEntry.key] of a history entry. The
+  /// `key` is a unique, UA-generated value that represents the history entry's
+  /// slot in the entries list rather than the entry itself. It is used to
+  /// navigate that particular slot via [Navigation.traverseTo]. The `key` will
+  /// be reused by other entries that replace the entry in the list (that is, if
+  /// the [NavigateEvent.navigationType] is `replace`).
   external String get id;
+
+  /// The **`index`** read-only property of the [NavigationHistoryEntry]
+  /// interface returns the index of the history entry in the history entries
+  /// list (that is, the list returned by [Navigation.entries]), or `-1` if the
+  /// entry does not appear in the list or if current document is not fully
+  /// active.
   external int get index;
+
+  /// The **`sameDocument`** read-only property of the [NavigationHistoryEntry]
+  /// interface returns `true` if this history entry is for the same `document`
+  /// as the current [Document] value and current document is fully active, or
+  /// `false` otherwise.
   external bool get sameDocument;
-  external set ondispose(EventHandler value);
   external EventHandler get ondispose;
+  external set ondispose(EventHandler value);
 }
 
 /// The **`NavigationTransition`** interface of the [Navigation API] represents
@@ -6678,8 +10443,20 @@ extension type NavigationHistoryEntry._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/NavigationTransition).
 extension type NavigationTransition._(JSObject _) implements JSObject {
+  /// The **`navigationType`** read-only property of the
+  /// [NavigationTransition] interface returns the type of the ongoing
+  /// navigation.
   external NavigationType get navigationType;
+
+  /// The **`from`** read-only property of the
+  /// [NavigationTransition] interface returns the [NavigationHistoryEntry] that
+  /// the transition is coming from.
   external NavigationHistoryEntry get from;
+
+  /// The **`finished`** read-only property of the
+  /// [NavigationTransition] interface returns a `Promise` that fulfills at the
+  /// same time the [Navigation.navigatesuccess_event] event fires, or rejects
+  /// at the same time the [Navigation.navigateerror_event] event fires.
   external JSPromise<JSAny?> get finished;
 }
 extension type NavigationActivation._(JSObject _) implements JSObject {
@@ -6717,14 +10494,77 @@ extension type NavigateEvent._(JSObject _) implements Event, JSObject {
   /// navigation, if you want it to happen before the navigation handling has
   /// completed.
   external void scroll();
+
+  /// The **`navigationType`** read-only property of the
+  /// [NavigateEvent] interface returns the type of the navigation — `push`,
+  /// `reload`, `replace`, or `traverse`.
   external NavigationType get navigationType;
+
+  /// The **`destination`** read-only property of the
+  /// [NavigateEvent] interface returns a [NavigationDestination] object
+  /// representing the destination being navigated to.
   external NavigationDestination get destination;
+
+  /// The **`canIntercept`** read-only property of the
+  /// [NavigateEvent] interface returns `true` if the navigation can be
+  /// intercepted and have its URL rewritten, or `false` otherwise
+  ///
+  /// There are several rules around when a navigation can be intercepted. For
+  /// example:
+  ///
+  /// - You can't intercept cross-origin navigations.
+  /// - You can intercept `http` or `https` URLs if only the `path`, `query`,
+  ///   and `fragment` portions of the new URL differ from the current URL.
+  /// - You can intercept `file` URLs if only the `query` and `fragment`
+  ///   portions of the new URL differ.
+  /// - For other URL types you can intercept the navigation if only the
+  ///   `fragment` portion differs.
+  ///
+  /// See the spec for more explanation on
+  /// [when a Document can have its URL rewritten](https://html.spec.whatwg.org/multipage/nav-history-apis.html#can-have-its-url-rewritten),
+  /// including a table of examples.
   external bool get canIntercept;
+
+  /// The **`userInitiated`** read-only property of the
+  /// [NavigateEvent] interface returns `true` if the navigation was initiated
+  /// by the user (e.g. by clicking a link, submitting a form, or pressing the
+  /// browser's "Back"/"Forward" buttons), or `false` otherwise.
+  ///
+  /// > **Note:** The table found at [Appendix: types of
+  /// > navigations](https://github.com/WICG/navigation-api#appendix-types-of-navigations)
+  /// > shows which navigation types are user-initiated.
   external bool get userInitiated;
+
+  /// The **`hashChange`** read-only property of the
+  /// [NavigateEvent] interface returns `true` if the navigation is a fragment
+  /// navigation (i.e. to a fragment identifier in the same document), or
+  /// `false` otherwise.
   external bool get hashChange;
+
+  /// The **`signal`** read-only property of the
+  /// [NavigateEvent] interface returns an [AbortSignal], which will become
+  /// aborted if the navigation is cancelled (e.g. by the user pressing the
+  /// browser's "Stop" button, or another navigation starting and thus
+  /// cancelling the ongoing one).
   external AbortSignal get signal;
+
+  /// The **`formData`** read-only property of the
+  /// [NavigateEvent] interface returns the [FormData] object representing the
+  /// submitted data in the case of a
+  /// [`POST`](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST)
+  /// form submission, or `null` otherwise.
   external FormData? get formData;
+
+  /// The **`downloadRequest`** read-only property of the
+  /// [NavigateEvent] interface returns the filename of the file requested for
+  /// download, in the case of a download navigation (e.g. an `a` or `area`
+  /// element with a `download` attribute), or `null` otherwise.
   external String? get downloadRequest;
+
+  /// The **`info`** read-only property of the
+  /// [NavigateEvent] interface returns the `info` data value passed by the
+  /// initiating navigation operation (e.g. [Navigation.back], or
+  /// [Navigation.navigate]), or `undefined` if no `info` data was passed.
   external JSAny? get info;
   external bool get hasUAVisualTransition;
 }
@@ -6745,26 +10585,26 @@ extension type NavigateEventInit._(JSObject _) implements EventInit, JSObject {
     bool hasUAVisualTransition,
   });
 
-  external set navigationType(NavigationType value);
   external NavigationType get navigationType;
-  external set destination(NavigationDestination value);
+  external set navigationType(NavigationType value);
   external NavigationDestination get destination;
-  external set canIntercept(bool value);
+  external set destination(NavigationDestination value);
   external bool get canIntercept;
-  external set userInitiated(bool value);
+  external set canIntercept(bool value);
   external bool get userInitiated;
-  external set hashChange(bool value);
+  external set userInitiated(bool value);
   external bool get hashChange;
-  external set signal(AbortSignal value);
+  external set hashChange(bool value);
   external AbortSignal get signal;
-  external set formData(FormData? value);
+  external set signal(AbortSignal value);
   external FormData? get formData;
-  external set downloadRequest(String? value);
+  external set formData(FormData? value);
   external String? get downloadRequest;
-  external set info(JSAny? value);
+  external set downloadRequest(String? value);
   external JSAny? get info;
-  external set hasUAVisualTransition(bool value);
+  external set info(JSAny? value);
   external bool get hasUAVisualTransition;
+  external set hasUAVisualTransition(bool value);
 }
 extension type NavigationInterceptOptions._(JSObject _) implements JSObject {
   external factory NavigationInterceptOptions({
@@ -6773,12 +10613,12 @@ extension type NavigationInterceptOptions._(JSObject _) implements JSObject {
     NavigationScrollBehavior scroll,
   });
 
-  external set handler(NavigationInterceptHandler value);
   external NavigationInterceptHandler get handler;
-  external set focusReset(NavigationFocusReset value);
+  external set handler(NavigationInterceptHandler value);
   external NavigationFocusReset get focusReset;
-  external set scroll(NavigationScrollBehavior value);
+  external set focusReset(NavigationFocusReset value);
   external NavigationScrollBehavior get scroll;
+  external set scroll(NavigationScrollBehavior value);
 }
 
 /// The **`NavigationDestination`** interface of the [Navigation API] represents
@@ -6797,10 +10637,48 @@ extension type NavigationDestination._(JSObject _) implements JSObject {
   /// [NavigationHistoryEntry], or navigation operation (e.g.
   /// [Navigation.navigate]) as appropriate.
   external JSAny? getState();
+
+  /// The **`url`** read-only property of the
+  /// [NavigationDestination] interface returns the URL being navigated to.
   external String get url;
+
+  /// The **`key`** read-only property of the
+  /// [NavigationDestination] interface returns the [NavigationHistoryEntry.key]
+  /// value of the destination [NavigationHistoryEntry] if the
+  /// [NavigateEvent.navigationType] is `traverse`, or an empty string
+  /// otherwise.
+  ///
+  /// The `key` is a unique, UA-generated value that represents the history
+  /// entry's slot in the history entries list, used to navigate to this place
+  /// in the history via [Navigation.traverseTo]. It will be reused by other
+  /// entries that replace the entry in the list (i.e. if the
+  /// [NavigateEvent.navigationType] is `replace`).
   external String get key;
+
+  /// The **`id`** read-only property of the
+  /// [NavigationDestination] interface returns the [NavigationHistoryEntry.id]
+  /// value of the destination [NavigationHistoryEntry] if the
+  /// [NavigateEvent.navigationType] is `traverse`, or an empty string
+  /// otherwise.
+  ///
+  /// The `id` is a unique, UA-generated value that always represents the
+  /// history entry, useful to correlate a history entry with an external
+  /// resource such as a storage cache.
   external String get id;
+
+  /// The **`index`** read-only property of the
+  /// [NavigationDestination] interface returns the
+  /// [NavigationHistoryEntry.index] value of the destination
+  /// [NavigationHistoryEntry] if the [NavigateEvent.navigationType] is
+  /// `traverse`, or `-1` otherwise.
   external int get index;
+
+  /// The **`sameDocument`** read-only property of the
+  /// [NavigationDestination] interface returns `true` if the navigation is to
+  /// the same `document` as the current [Document] value, or `false` otherwise.
+  ///
+  /// This is useful for checking whether the navigation will be same-document
+  /// or cross-document.
   external bool get sameDocument;
 }
 
@@ -6831,7 +10709,15 @@ extension type NavigationCurrentEntryChangeEvent._(JSObject _)
     NavigationCurrentEntryChangeEventInit eventInitDict,
   );
 
+  /// The **`navigationType`** read-only property of the
+  /// [NavigationCurrentEntryChangeEvent] interface returns the type of the
+  /// navigation that resulted in the change. The property may be `null` if the
+  /// change occurs due to [Navigation.updateCurrentEntry].
   external NavigationType? get navigationType;
+
+  /// The **`from`** read-only property of the
+  /// [NavigationCurrentEntryChangeEvent] interface returns the
+  /// [NavigationHistoryEntry] that was navigated from.
   external NavigationHistoryEntry get from;
 }
 extension type NavigationCurrentEntryChangeEventInit._(JSObject _)
@@ -6844,10 +10730,10 @@ extension type NavigationCurrentEntryChangeEventInit._(JSObject _)
     required NavigationHistoryEntry from,
   });
 
-  external set navigationType(NavigationType? value);
   external NavigationType? get navigationType;
-  external set from(NavigationHistoryEntry value);
+  external set navigationType(NavigationType? value);
   external NavigationHistoryEntry get from;
+  external set from(NavigationHistoryEntry value);
 }
 
 /// **`PopStateEvent`** is an interface for the
@@ -6872,6 +10758,11 @@ extension type PopStateEvent._(JSObject _) implements Event, JSObject {
     PopStateEventInit eventInitDict,
   ]);
 
+  /// The **`state`** read-only property of the [PopStateEvent] interface
+  /// represents the state stored when the event was created.
+  ///
+  /// Practically it is a value provided by the call to [history.pushState] or
+  /// [history.replaceState]
   external JSAny? get state;
   external bool get hasUAVisualTransition;
 }
@@ -6884,10 +10775,10 @@ extension type PopStateEventInit._(JSObject _) implements EventInit, JSObject {
     bool hasUAVisualTransition,
   });
 
-  external set state(JSAny? value);
   external JSAny? get state;
-  external set hasUAVisualTransition(bool value);
+  external set state(JSAny? value);
   external bool get hasUAVisualTransition;
+  external set hasUAVisualTransition(bool value);
 }
 
 /// The **`HashChangeEvent`** interface represents events that fire when the
@@ -6906,7 +10797,14 @@ extension type HashChangeEvent._(JSObject _) implements Event, JSObject {
     HashChangeEventInit eventInitDict,
   ]);
 
+  /// The **`oldURL`** read-only property of the
+  /// [HashChangeEvent] interface returns the previous URL from which the window
+  /// was navigated.
   external String get oldURL;
+
+  /// The **`newURL`** read-only property of the
+  /// [HashChangeEvent] interface returns the new URL to which the window is
+  /// navigating.
   external String get newURL;
 }
 extension type HashChangeEventInit._(JSObject _)
@@ -6919,10 +10817,10 @@ extension type HashChangeEventInit._(JSObject _)
     String newURL,
   });
 
-  external set oldURL(String value);
   external String get oldURL;
-  external set newURL(String value);
+  external set oldURL(String value);
   external String get newURL;
+  external set newURL(String value);
 }
 extension type PageRevealEvent._(JSObject _) implements Event, JSObject {
   external factory PageRevealEvent(
@@ -6941,8 +10839,8 @@ extension type PageRevealEventInit._(JSObject _)
     ViewTransition? viewTransition,
   });
 
-  external set viewTransition(ViewTransition? value);
   external ViewTransition? get viewTransition;
+  external set viewTransition(ViewTransition? value);
 }
 
 /// The **`PageTransitionEvent`** event object is available inside handler
@@ -6962,6 +10860,8 @@ extension type PageTransitionEvent._(JSObject _) implements Event, JSObject {
     PageTransitionEventInit eventInitDict,
   ]);
 
+  /// The **`persisted`** read-only property indicates if a webpage is loading
+  /// from a cache.
   external bool get persisted;
 }
 extension type PageTransitionEventInit._(JSObject _)
@@ -6973,8 +10873,8 @@ extension type PageTransitionEventInit._(JSObject _)
     bool persisted,
   });
 
-  external set persisted(bool value);
   external bool get persisted;
+  external set persisted(bool value);
 }
 
 /// The **`BeforeUnloadEvent`** interface represents the event object for the
@@ -6989,8 +10889,20 @@ extension type PageTransitionEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/BeforeUnloadEvent).
 extension type BeforeUnloadEvent._(JSObject _) implements Event, JSObject {
-  external set returnValue(String value);
+  /// The **`returnValue`** property of the
+  /// [BeforeUnloadEvent] interface, when set to a truthy value, triggers a
+  /// browser-generated confirmation dialog asking users to confirm if they
+  /// _really_ want to leave the page when they try to close or reload it, or
+  /// navigate somewhere else. This is intended to help prevent loss of unsaved
+  /// data.
+  ///
+  /// > **Note:** `returnValue` is a legacy feature, and best practice is to
+  /// > trigger the dialog by invoking [Event.preventDefault] on the
+  /// > `BeforeUnloadEvent` object, while also setting `returnValue` to support
+  /// > legacy cases. See the [Window.beforeunload_event] event reference for
+  /// > detailed up-to-date guidance.
   external String get returnValue;
+  external set returnValue(String value);
 }
 
 /// The **`ErrorEvent`** interface represents events providing information
@@ -7024,16 +10936,16 @@ extension type ErrorEventInit._(JSObject _) implements EventInit, JSObject {
     JSAny? error,
   });
 
-  external set message(String value);
   external String get message;
-  external set filename(String value);
+  external set message(String value);
   external String get filename;
-  external set lineno(int value);
+  external set filename(String value);
   external int get lineno;
-  external set colno(int value);
+  external set lineno(int value);
   external int get colno;
-  external set error(JSAny? value);
+  external set colno(int value);
   external JSAny? get error;
+  external set error(JSAny? value);
 }
 
 /// The **`PromiseRejectionEvent`** interface represents events which are sent
@@ -7053,7 +10965,17 @@ extension type PromiseRejectionEvent._(JSObject _) implements Event, JSObject {
     PromiseRejectionEventInit eventInitDict,
   );
 
+  /// The [PromiseRejectionEvent] interface's
+  /// **`promise`** read-only property indicates the JavaScript
+  /// `Promise` which was rejected. You can examine the event's
+  /// [PromiseRejectionEvent.reason] property to learn why the promise was
+  /// rejected.
   external JSObject get promise;
+
+  /// The [PromiseRejectionEvent] **`reason`** read-only
+  /// property is any JavaScript value or `Object` which provides the reason
+  /// passed into `Promise.reject()`. This in theory provides information about
+  /// why the promise was rejected.
   external JSAny? get reason;
 }
 extension type PromiseRejectionEventInit._(JSObject _)
@@ -7066,10 +10988,10 @@ extension type PromiseRejectionEventInit._(JSObject _)
     JSAny? reason,
   });
 
-  external set promise(JSObject value);
   external JSObject get promise;
-  external set reason(JSAny? value);
+  external set promise(JSObject value);
   external JSAny? get reason;
+  external set reason(JSAny? value);
 }
 
 /// The **`DOMParser`** interface provides
@@ -7224,36 +11146,353 @@ extension type Navigator._(JSObject _) implements JSObject {
 
   /// This method always returns false.
   external bool javaEnabled();
+
+  /// The **`clipboard`** read-only property of the [Navigator] interface
+  /// returns a [Clipboard] object used to read and write the clipboard's
+  /// contents.
+  ///
+  /// This is the entry point to the
+  /// [Clipboard API](https://developer.mozilla.org/en-US/docs/Web/API/Clipboard_API),
+  /// which can be used to implement cut, copy, and paste features within a web
+  /// application.
   external Clipboard get clipboard;
+
+  /// The **`credentials`** read-only property of the [Navigator] interface
+  /// returns the [CredentialsContainer] object associated with the current
+  /// document, which exposes methods to request credentials. The
+  /// [CredentialsContainer] interface also notifies the user agent when an
+  /// interesting event occurs, such as a successful sign-in or sign-out. This
+  /// interface can be used for feature detection.
   external CredentialsContainer get credentials;
+
+  /// The **`Navigator.geolocation`** read-only property returns a
+  /// [Geolocation] object that gives Web content access to the location of the
+  /// device. This allows a website or app to offer customized results based on
+  /// the user's
+  /// location.
+  ///
+  /// > **Note:** For security reasons, when a web page tries to access location
+  /// > information, the user is notified and asked to grant permission. Be
+  /// > aware that each
+  /// > browser has its own policies and methods for requesting this permission.
   external Geolocation get geolocation;
+
+  /// The read-only **`userActivation`** property of the [Navigator] interface
+  /// returns a [UserActivation] object which contains information about the
+  /// current window's user activation state.
   external UserActivation get userActivation;
+
+  /// The **`Navigator.mediaCapabilities`** read-only property
+  /// returns a [MediaCapabilities] object that can expose information about the
+  /// decoding and encoding capabilities for a given format and output
+  /// capabilities as defined
+  /// by the
+  /// [Media Capabilities API](https://developer.mozilla.org/en-US/docs/Web/API/Media_Capabilities_API).
   external MediaCapabilities get mediaCapabilities;
+
+  /// The **`mediaDevices`** read-only property of the [Navigator] interface
+  /// returns a [MediaDevices] object, which provides access to connected media
+  /// input devices like cameras and microphones, as well as screen sharing.
   external MediaDevices get mediaDevices;
+
+  /// The **`mediaSession`** read-only property of the [Navigator]
+  /// interface returns a [MediaSession]
+  /// object that can be used to share with the browser metadata and other
+  /// information about
+  /// the current playback state of media being handled by a document.
+  ///
+  /// This
+  /// information may, in turn, be shared with the device and/or operating
+  /// system in order to
+  /// a device's standard media control user experience to describe and control
+  /// the playback
+  /// of the media.
+  ///
+  /// In addition, the `MediaSession` interface provides the
+  /// [MediaSession.setActionHandler] method, which lets
+  /// you receive events when the user engages device controls such as either
+  /// onscreen or
+  /// physical play, pause, seek, and other similar controls. An internet radio
+  /// app, for
+  /// example, can use `setActionHandler()` to let the media controls on a
+  /// keyboard
+  /// or elsewhere on the user's device be used to control the app's media
+  /// playback.
   external MediaSession get mediaSession;
+
+  /// The **`Navigator.permissions`** read-only property returns a
+  /// [Permissions] object that can be used to query and update permission
+  /// status of APIs covered by the
+  /// [Permissions API](https://developer.mozilla.org/en-US/docs/Web/API/Permissions_API).
   external Permissions get permissions;
+
+  /// The **`maxTouchPoints`** read-only property of the
+  /// [Navigator] interface returns the maximum number of simultaneous touch
+  /// contact points are supported by the current device.
   external int get maxTouchPoints;
+
+  /// The **`wakeLock`** read-only property of the [Navigator] interface returns
+  /// a [WakeLock] interface that allows a document to acquire a screen wake
+  /// lock.
+  /// While a screen wake lock is active, the user agent will try to prevent the
+  /// device from dimming the screen, turning it off completely, or showing a
+  /// screensaver.
   external WakeLock get wakeLock;
+
+  /// The **`serviceWorker`** read-only property of the [Navigator] interface
+  /// returns the [ServiceWorkerContainer] object for the
+  /// [associated document](https://html.spec.whatwg.org/multipage/browsers.html#concept-document-window),
+  /// which provides access to registration, removal, upgrade, and communication
+  /// with the [ServiceWorker].
+  ///
+  /// The feature may not be available in private mode.
   external ServiceWorkerContainer get serviceWorker;
+
+  /// The value of the **`Navigator.appCodeName`** property is
+  /// always "`Mozilla`", in any browser. This property is kept only for
+  /// compatibility purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real
+  /// > product name. All browsers return "`Mozilla`" as the value of this
+  /// > property.
   external String get appCodeName;
+
+  /// The value of the **`Navigator.appName`** property is always
+  /// "`Netscape`", in any browser. This property is kept only for compatibility
+  /// purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real browser name.
+  /// > All browsers return "`Netscape`" as the value of this property.
   external String get appName;
+
+  /// Returns either "`4.0`" or a string representing version information about
+  /// the browser.
+  ///
+  /// > **Note:** Do not rely on this property to return the correct browser
+  /// > version.
   external String get appVersion;
+
+  /// The **`platform`** property read-only property of the [Navigator]
+  /// interface returns a string identifying the platform on which the user's
+  /// browser is running.
+  ///
+  /// > **Note:** In general, you should whenever possible avoid writing code
+  /// > that uses methods or properties like this one to try to find out
+  /// > information about the user's environment, and instead write code that
+  /// > does
+  /// > [feature detection](https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Feature_detection).
   external String get platform;
+
+  /// The value of the **`Navigator.product`** property is always
+  /// "`Gecko`", in any browser. This property is kept only for compatibility
+  /// purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real product name.
+  /// > All browsers return "`Gecko`" as the value of this property.
   external String get product;
+
+  /// The **`Navigator.productSub`** read-only property returns the
+  /// build number of the current browser.
   external String get productSub;
+
+  /// The **`Navigator.userAgent`** read-only property returns the
+  /// user agent string for the current browser.
+  ///
+  /// > **Note:** The specification asks browsers to provide as little
+  /// > information via this field as
+  /// > possible. Never assume that the value of this property will stay the
+  /// > same in future
+  /// > versions of the same browser. Try not to use it at all, or only for
+  /// > current and past
+  /// > versions of a browser. New browsers may start using the same UA, or part
+  /// > of it, as an
+  /// > older browser: you really have no guarantee that the browser agent is
+  /// > indeed the one
+  /// > advertised by this property.
+  /// >
+  /// > Also keep in mind that users of a browser can change the value of this
+  /// > field if they
+  /// > want (UA spoofing).
+  ///
+  /// Browser identification based on detecting the user agent string is
+  /// **unreliable** and **is not recommended**, as the user agent
+  /// string is user configurable. For example:
+  ///
+  /// - In Firefox, you can change the preference `general.useragent.override`
+  ///   in
+  /// `about:config`. Some Firefox extensions do that; however, this only
+  /// changes
+  /// the HTTP header that gets sent and that is returned by
+  /// `navigator.userAgent`.
+  /// There might be other methods that utilize JavaScript code to identify the
+  /// browser.
+  /// - Opera 6+ allows users to set the browser identification string via a
+  ///   menu.
   external String get userAgent;
+
+  /// The value of the [Navigator] **`vendor`** property is always either
+  /// "`Google Inc.`", "`Apple Computer, Inc.`", or (in Firefox) the empty
+  /// string.
   external String get vendor;
+
+  /// The value of the **`Navigator.vendorSub`** property is always
+  /// the empty string, in any browser.
   external String get vendorSub;
+
+  /// The **`Navigator.oscpu`** property returns a string that identifies the
+  /// current operating system.
   external String get oscpu;
+
+  /// The **`Navigator.language`** read-only property returns a string
+  /// representing the preferred language of the user, usually the language of
+  /// the browser UI.
   external String get language;
+
+  /// The **`Navigator.languages`** read-only property
+  /// returns an array of strings representing the user's preferred
+  /// languages. The language is described using language tags according to
+  /// `5646, "Tags for Identifying Languages (also known as BCP 47)"`. In the
+  /// returned
+  /// array they are ordered by preference with the most preferred language
+  /// first.
+  ///
+  /// The value of [Navigator.language] is the
+  /// first element of the returned array.
+  ///
+  /// When its value changes, as the user's preferred languages are changed a
+  /// [Window.languagechange_event] event is fired on the [Window] object.
+  ///
+  /// The `Accept-Language` HTTP header in every HTTP request from the user's
+  /// browser uses the same value for the `navigator.languages` property except
+  /// for
+  /// the extra `qvalues` (quality values) field (e.g. `en-US;q=0.8`).
   external JSArray<JSString> get languages;
+
+  /// Returns the online status of the browser. The property returns a boolean
+  /// value, with
+  /// `true` meaning online and `false` meaning offline. The property
+  /// sends updates whenever the browser's ability to connect to the network
+  /// changes. The
+  /// update occurs when the user follows links or when a script requests a
+  /// remote page. For
+  /// example, the property should return `false` when users click links soon
+  /// after
+  /// they lose internet connection.
+  ///
+  /// Browsers implement this property differently.
+  ///
+  /// In Chrome and Safari, if the browser is not able to connect to a local
+  /// area network
+  /// (LAN) or a router, it is offline; all other conditions return `true`. So
+  /// while you can assume that the browser is offline when it returns a `false`
+  /// value, you cannot assume that a true value necessarily means that the
+  /// browser can access
+  /// the internet. You could be getting false positives, such as in cases where
+  /// the computer
+  /// is running a virtualization software that has virtual ethernet adapters
+  /// that are always
+  /// "connected." Therefore, if you really want to determine the online status
+  /// of the
+  /// browser, you should develop additional means for checking.
+  ///
+  /// In Firefox, switching the browser to offline mode sends a `false` value.
+  /// Until Firefox
+  /// 41, all other conditions returned a `true` value; testing actual behavior
+  /// on Nightly 68 on
+  /// Windows shows that it only looks for LAN connection like Chrome and Safari
+  /// giving false
+  /// positives.
+  ///
+  /// You can see changes in the network state by listening to the
+  /// [`online`](https://developer.mozilla.org/en-US/docs/Web/API/Window/online_event)
+  /// and
+  /// [`offline`](https://developer.mozilla.org/en-US/docs/Web/API/Window/offline_event)
+  /// events.
   external bool get onLine;
+
+  /// `navigator.cookieEnabled` returns a Boolean value that indicates whether
+  /// cookies are enabled or not.
+  ///
+  /// The property is read-only.
   external bool get cookieEnabled;
+
+  /// Returns a [PluginArray] object, listing the [Plugin] objects describing
+  /// the plugins installed in the application.
+  /// Named properties of the returned object are not enumerable (except in very
+  /// old browser versions).
+  ///
+  /// Recent versions of the specification hard-code the returned list.
+  /// If inline viewing of PDF files is supported the property lists five
+  /// standard plugins.
+  /// If inline PDF viewing is not supported then an empty list is returned.
+  ///
+  /// > **Note:** Use [Navigator.pdfViewerEnabled] to determine if inline
+  /// > viewing of PDF files is supported. Do not infer it from this property.
+  /// >
+  /// > The "five standard plugins" are those that developers have most commonly
+  /// > used to feature detect inline PDF viewing.
+  /// > Returning these ensures that legacy code can more reliably determine
+  /// > whether inline viewing is supported.
+  /// > However this approach is not recommended for new code because this
+  /// > property may eventually be removed.
+  ///
+  /// Legacy browser versions also list plugins for Adobe Flash and PDF viewer
+  /// extensions.
   external PluginArray get plugins;
+
+  /// Returns a [MimeTypeArray] object, which contains a list of [MimeType]
+  /// objects representing the MIME types recognized and supported by the
+  /// browser.
+  /// The array can be queried for information about the enabled plugin that is
+  /// used to handle a file of the specified type.
+  /// Named properties of the returned object are not enumerable (except in very
+  /// old browser versions).
+  ///
+  /// Recent versions of the specification hard-code the returned set of MIME
+  /// types.
+  /// If PDF files can be displayed inline then `application/pdf` and `text/pdf`
+  /// are listed.
+  /// Otherwise an empty list is returned.
+  ///
+  /// > **Note:** Use [Navigator.pdfViewerEnabled] to determine if inline
+  /// > viewing of PDF files is supported. Do not infer it from this property.
+  ///
+  /// Legacy browser versions do not hard-code the list returned by the
+  /// property, and might return other MIME types.
   external MimeTypeArray get mimeTypes;
+
+  /// The **`pdfViewerEnabled`** read-only property of the [Navigator] interface
+  /// indicates whether the browser supports inline display of PDF files when
+  /// navigating to them.
+  ///
+  /// If inline viewing is not supported the PDF is downloaded and may then be
+  /// handled by some external application.
+  ///
+  /// > **Note:** This method replaces a number of legacy methods of inferring
+  /// > support for inline viewing of PDF files.
   external bool get pdfViewerEnabled;
+
+  /// The **`navigator.hardwareConcurrency`** read-only property
+  /// returns the number of logical processors available to run threads on the
+  /// user's
+  /// computer.
   external int get hardwareConcurrency;
+
+  /// The **`Navigator.storage`**
+  /// read-only property returns the singleton [StorageManager] object used to
+  /// access the overall storage capabilities of the browser for the current
+  /// site or app.
+  /// The returned object lets you examine and configure persistence of data
+  /// stores and
+  /// learn approximately how much more space your browser has available for
+  /// local storage
+  /// use.
   external StorageManager get storage;
+
+  /// The **`locks`** read-only property of
+  /// the [Navigator] interface returns a [LockManager] object
+  /// which provides methods for requesting a new [Lock] object and querying
+  /// for an existing `Lock` object.
   external LockManager get locks;
 }
 
@@ -7352,7 +11591,13 @@ extension type ImageBitmap._(JSObject _) implements JSObject {
   /// method disposes of all graphical resources associated with an
   /// `ImageBitmap`.
   external void close();
+
+  /// The read-only **`ImageBitmap.width`** property returns the [ImageBitmap]
+  /// object's width in CSS pixels.
   external int get width;
+
+  /// The read-only **`ImageBitmap.height`** property returns the [ImageBitmap]
+  /// object's height in CSS pixels.
   external int get height;
 }
 extension type ImageBitmapOptions._(JSObject _) implements JSObject {
@@ -7365,18 +11610,18 @@ extension type ImageBitmapOptions._(JSObject _) implements JSObject {
     ResizeQuality resizeQuality,
   });
 
-  external set imageOrientation(ImageOrientation value);
   external ImageOrientation get imageOrientation;
-  external set premultiplyAlpha(PremultiplyAlpha value);
+  external set imageOrientation(ImageOrientation value);
   external PremultiplyAlpha get premultiplyAlpha;
-  external set colorSpaceConversion(ColorSpaceConversion value);
+  external set premultiplyAlpha(PremultiplyAlpha value);
   external ColorSpaceConversion get colorSpaceConversion;
-  external set resizeWidth(int value);
+  external set colorSpaceConversion(ColorSpaceConversion value);
   external int get resizeWidth;
-  external set resizeHeight(int value);
+  external set resizeWidth(int value);
   external int get resizeHeight;
-  external set resizeQuality(ResizeQuality value);
+  external set resizeHeight(int value);
   external ResizeQuality get resizeQuality;
+  external set resizeQuality(ResizeQuality value);
 }
 
 /// The **`MessageEvent`** interface represents a message received by a target
@@ -7426,10 +11671,34 @@ extension type MessageEvent._(JSObject _) implements Event, JSObject {
     MessageEventSource? source,
     JSArray<MessagePort> ports,
   ]);
+
+  /// The **`data`** read-only property of the
+  /// [MessageEvent] interface represents the data sent by the message emitter.
   external JSAny? get data;
+
+  /// The **`origin`** read-only property of the
+  /// [MessageEvent] interface is a string representing the
+  /// origin of the message emitter.
   external String get origin;
+
+  /// The **`lastEventId`** read-only property of the
+  /// [MessageEvent] interface is a string representing a
+  /// unique ID for the event.
   external String get lastEventId;
+
+  /// The **`source`** read-only property of the
+  /// [MessageEvent] interface is a `MessageEventSource` (which can be
+  /// a , [MessagePort], or
+  /// [ServiceWorker] object) representing the message emitter.
   external MessageEventSource? get source;
+
+  /// The **`ports`** read-only property of the
+  /// [MessageEvent] interface is an array of [MessagePort] objects
+  /// representing the ports associated with the channel the message is being
+  /// sent through
+  /// (where appropriate, e.g. in channel messaging or when sending a message to
+  /// a shared
+  /// worker).
   external JSArray<MessagePort> get ports;
 }
 extension type MessageEventInit._(JSObject _) implements EventInit, JSObject {
@@ -7444,16 +11713,16 @@ extension type MessageEventInit._(JSObject _) implements EventInit, JSObject {
     JSArray<MessagePort> ports,
   });
 
-  external set data(JSAny? value);
   external JSAny? get data;
-  external set origin(String value);
+  external set data(JSAny? value);
   external String get origin;
-  external set lastEventId(String value);
+  external set origin(String value);
   external String get lastEventId;
-  external set source(MessageEventSource? value);
+  external set lastEventId(String value);
   external MessageEventSource? get source;
-  external set ports(JSArray<MessagePort> value);
+  external set source(MessageEventSource? value);
   external JSArray<MessagePort> get ports;
+  external set ports(JSArray<MessagePort> value);
 }
 
 /// The **`EventSource`** interface is web content's interface to
@@ -7519,21 +11788,33 @@ extension type EventSource._(JSObject _) implements EventTarget, JSObject {
   ///
   /// > **Note:** If the connection is already closed, the method does nothing.
   external void close();
+
+  /// The **`url`** read-only property of the
+  /// [EventSource] interface returns a string representing the
+  /// URL of the source.
   external String get url;
+
+  /// The **`withCredentials`** read-only property of the
+  /// [EventSource] interface returns a boolean value indicating whether
+  /// the `EventSource` object was instantiated with CORS credentials set.
   external bool get withCredentials;
+
+  /// The **`readyState`** read-only property of the
+  /// [EventSource] interface returns a number representing the state of the
+  /// connection.
   external int get readyState;
-  external set onopen(EventHandler value);
   external EventHandler get onopen;
-  external set onmessage(EventHandler value);
+  external set onopen(EventHandler value);
   external EventHandler get onmessage;
-  external set onerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 extension type EventSourceInit._(JSObject _) implements JSObject {
   external factory EventSourceInit({bool withCredentials});
 
-  external set withCredentials(bool value);
   external bool get withCredentials;
+  external set withCredentials(bool value);
 }
 
 /// The **`MessageChannel`** interface of the
@@ -7548,7 +11829,17 @@ extension type EventSourceInit._(JSObject _) implements JSObject {
 extension type MessageChannel._(JSObject _) implements JSObject {
   external factory MessageChannel();
 
+  /// The **`port1`** read-only property of the
+  /// [MessageChannel] interface returns the first port of the message channel —
+  /// the port attached to the context that originated the channel.
   external MessagePort get port1;
+
+  /// The **`port2`** read-only property of the
+  /// [MessageChannel] interface returns the second port of the message channel
+  /// —
+  /// the port attached to the context at the other end of the channel, which
+  /// the message is
+  /// initially sent to.
   external MessagePort get port2;
 }
 
@@ -7585,18 +11876,18 @@ extension type MessagePort._(JSObject _) implements EventTarget, JSObject {
   /// flow of
   /// messages to that port.
   external void close();
-  external set onmessage(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onclose(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onclose;
+  external set onclose(EventHandler value);
 }
 extension type StructuredSerializeOptions._(JSObject _) implements JSObject {
   external factory StructuredSerializeOptions({JSArray<JSObject> transfer});
 
-  external set transfer(JSArray<JSObject> value);
   external JSArray<JSObject> get transfer;
+  external set transfer(JSArray<JSObject> value);
 }
 
 /// The **`BroadcastChannel`** interface represents a named channel that any  of
@@ -7628,11 +11919,16 @@ extension type BroadcastChannel._(JSObject _) implements EventTarget, JSObject {
   /// as there is no other way for a browser to know
   /// that this channel is not needed anymore.
   external void close();
+
+  /// The read-only **`BroadcastChannel.name`** property returns a string, which
+  /// uniquely identifies the given channel with its name. This name is passed
+  /// to the [BroadcastChannel.BroadCastChannel] constructor at creation time
+  /// and is therefore read-only.
   external String get name;
-  external set onmessage(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
+  external set onmessageerror(EventHandler value);
 }
 
 /// The **`WorkerGlobalScope`** interface of the
@@ -7691,21 +11987,42 @@ extension type WorkerGlobalScope._(JSObject _)
     JSAny? value, [
     StructuredSerializeOptions options,
   ]);
+
+  /// The **`self`** read-only property of the [WorkerGlobalScope] interface
+  /// returns a reference to the `WorkerGlobalScope` itself. Most of the time it
+  /// is a specific scope like [DedicatedWorkerGlobalScope],
+  /// [SharedWorkerGlobalScope], or [ServiceWorkerGlobalScope].
   external WorkerGlobalScope get self;
+
+  /// The **`location`** read-only property of the [WorkerGlobalScope] interface
+  /// returns the [WorkerLocation] associated with the worker. It is a specific
+  /// location object, mostly a subset of the [Location] for browsing scopes,
+  /// but adapted to workers.
   external WorkerLocation get location;
+
+  /// The **`navigator`** read-only property of the [WorkerGlobalScope]
+  /// interface returns the [WorkerNavigator] associated with the worker. It is
+  /// a specific navigator object, mostly a subset of the [Navigator] for
+  /// browsing scopes, but adapted to workers.
   external WorkerNavigator get navigator;
-  external set onerror(OnErrorEventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onlanguagechange(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onlanguagechange;
-  external set onoffline(EventHandler value);
+  external set onlanguagechange(EventHandler value);
   external EventHandler get onoffline;
-  external set ononline(EventHandler value);
+  external set onoffline(EventHandler value);
   external EventHandler get ononline;
-  external set onrejectionhandled(EventHandler value);
+  external set ononline(EventHandler value);
   external EventHandler get onrejectionhandled;
-  external set onunhandledrejection(EventHandler value);
+  external set onrejectionhandled(EventHandler value);
   external EventHandler get onunhandledrejection;
+  external set onunhandledrejection(EventHandler value);
+
+  /// The **`fonts`** property of the [WorkerGlobalScope] interface returns the
+  /// [FontFaceSet] interface of the worker.
+  ///
+  /// This property is part of the
+  /// [CSS Font Loading API](https://developer.mozilla.org/en-US/docs/Web/API/CSS_Font_Loading_API).
   external FontFaceSet get fonts;
   external IDBFactory get indexedDB;
   external Crypto get crypto;
@@ -7799,13 +12116,19 @@ extension type DedicatedWorkerGlobalScope._(JSObject _)
   /// be created by [Window] or by a dedicated worker that also has an
   /// associated owner [Window].
   external void cancelAnimationFrame(int handle);
+
+  /// The **`name`** read-only property of the
+  /// [DedicatedWorkerGlobalScope] interface returns the name that the
+  /// [Worker] was (optionally) given when it was created. This is the name that
+  /// the [Worker.Worker] constructor can pass to get a reference to
+  /// the [DedicatedWorkerGlobalScope].
   external String get name;
-  external set onmessage(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onrtctransform(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onrtctransform;
+  external set onrtctransform(EventHandler value);
 }
 
 /// The **`SharedWorkerGlobalScope`** object (the [SharedWorker] global scope)
@@ -7826,9 +12149,16 @@ extension type SharedWorkerGlobalScope._(JSObject _)
   /// discards any tasks queued in the `SharedWorkerGlobalScope`'s event loop,
   /// effectively closing this particular scope.
   external void close();
+
+  /// The **`name`** read-only property of the
+  /// [SharedWorkerGlobalScope] interface returns the name that the
+  /// [SharedWorker] was (optionally) given when it was created. This is the
+  /// name
+  /// that the [SharedWorker.SharedWorker] constructor can pass
+  /// to get a reference to the [SharedWorkerGlobalScope].
   external String get name;
-  external set onconnect(EventHandler value);
   external EventHandler get onconnect;
+  external set onconnect(EventHandler value);
 }
 
 /// The **`Worker`** interface of the
@@ -7878,12 +12208,12 @@ extension type Worker._(JSObject _) implements EventTarget, JSObject {
     JSAny? message, [
     JSObject optionsOrTransfer,
   ]);
-  external set onmessage(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onerror(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 extension type WorkerOptions._(JSObject _) implements JSObject {
   external factory WorkerOptions({
@@ -7892,12 +12222,12 @@ extension type WorkerOptions._(JSObject _) implements JSObject {
     String name,
   });
 
-  external set type(WorkerType value);
   external WorkerType get type;
-  external set credentials(RequestCredentials value);
+  external set type(WorkerType value);
   external RequestCredentials get credentials;
-  external set name(String value);
+  external set credentials(RequestCredentials value);
   external String get name;
+  external set name(String value);
 }
 
 /// The **`SharedWorker`** interface represents a specific kind of worker that
@@ -7920,9 +12250,12 @@ extension type SharedWorker._(JSObject _) implements EventTarget, JSObject {
     JSAny options,
   ]);
 
+  /// The **`port`** property of the [SharedWorker]
+  /// interface returns a [MessagePort] object used to communicate and control
+  /// the shared worker.
   external MessagePort get port;
-  external set onerror(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 
 /// The **`WorkerNavigator`** interface represents a subset of the [Navigator]
@@ -7936,24 +12269,181 @@ extension type SharedWorker._(JSObject _) implements EventTarget, JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/WorkerNavigator).
 extension type WorkerNavigator._(JSObject _) implements JSObject {
   external bool taintEnabled();
+
+  /// The read-only **`WorkerNavigator.mediaCapabilities`** property
+  /// returns a [MediaCapabilities] object that can expose information about the
+  /// decoding and encoding capabilities for a given format and output
+  /// capabilities as defined
+  /// by the
+  /// [Media Capabilities API](https://developer.mozilla.org/en-US/docs/Web/API/Media_Capabilities_API).
   external MediaCapabilities get mediaCapabilities;
+
+  /// The **`WorkerNavigator.permissions`** read-only property
+  /// returns a [Permissions] object that can be used to query and update
+  /// permission status of APIs covered by the
+  /// [Permissions API](https://developer.mozilla.org/en-US/docs/Web/API/Permissions_API).
   external Permissions get permissions;
+
+  /// The **`serviceWorker`** read-only property of the [WorkerNavigator]
+  /// interface returns the [ServiceWorkerContainer] object for the
+  /// [associated document](https://html.spec.whatwg.org/multipage/browsers.html#concept-document-window),
+  /// which provides access to registration, removal, upgrade, and communication
+  /// with the [ServiceWorker].
+  ///
+  /// The feature may not be available in private mode.
   external ServiceWorkerContainer get serviceWorker;
+
+  /// The value of the **`WorkerNavigator.appCodeName`** property is
+  /// always "`Mozilla`", in any browser. This property is kept only for
+  /// compatibility purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real
+  /// > product name. All browsers return "`Mozilla`" as the value of this
+  /// > property.
   external String get appCodeName;
+
+  /// The value of the **`WorkerNavigator.appName`** property is always
+  /// "`Netscape`", in any browser. This property is kept only for compatibility
+  /// purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real browser name.
+  /// > All browsers return "`Netscape`" as the value of this property.
   external String get appName;
+
+  /// Returns either "`4.0`" or a string representing version information about
+  /// the browser.
+  ///
+  /// > **Note:** Do not rely on this property to return the correct browser
+  /// > version.
   external String get appVersion;
+
+  /// Returns a string representing the platform of the browser. The
+  /// specification allows
+  /// browsers to always return the empty string, so don't rely on this property
+  /// to get a
+  /// reliable answer.
   external String get platform;
+
+  /// The value of the **`WorkerNavigator.product`** property is always
+  /// "`Gecko`", in any browser. This property is kept only for compatibility
+  /// purposes.
+  ///
+  /// > **Note:** Do not rely on this property to return a real product name.
+  /// > All browsers return "`Gecko`" as the value of this property.
   external String get product;
   external String get productSub;
+
+  /// The **`WorkerNavigator.userAgent`** read-only property returns the
+  /// user agent string for the current browser.
+  ///
+  /// > **Note:** The specification asks browsers to provide as little
+  /// > information via this field as
+  /// > possible. Never assume that the value of this property will stay the
+  /// > same in future
+  /// > versions of the same browser. Try not to use it at all, or only for
+  /// > current and past
+  /// > versions of a browser. New browsers may start using the same UA, or part
+  /// > of it, as an
+  /// > older browser: you really have no guarantee that the browser agent is
+  /// > indeed the one
+  /// > advertised by this property.
+  /// >
+  /// > Also keep in mind that users of a browser can change the value of this
+  /// > field if they
+  /// > want (UA spoofing).
+  ///
+  /// Browser identification based on detecting the user agent string is
+  /// **unreliable** and **is not recommended**, as the user agent
+  /// string is user configurable. For example:
+  ///
+  /// - In Firefox, you can change the preference `general.useragent.override`
+  ///   in
+  /// `about:config`. Some Firefox extensions do that; however, this only
+  /// changes
+  /// the HTTP header that gets sent, and doesn't affect browser detection
+  /// performed by
+  /// JavaScript code.
+  /// - Opera 6+ allows users to set the browser identification string via a
+  ///   menu.
   external String get userAgent;
   external String get vendor;
   external String get vendorSub;
   external String get oscpu;
+
+  /// The **`WorkerNavigator.language`** read-only property returns
+  /// a string representing the preferred language of the user, usually the
+  /// language of the
+  /// browser UI.
   external String get language;
+
+  /// The **`WorkerNavigator.languages`** read-only property
+  /// returns an array of strings representing the user's preferred
+  /// languages. The language is described using language tags according to
+  /// `5646, "Tags for Identifying Languages (also known as BCP 47)"`. In the
+  /// returned
+  /// array they are ordered by preference with the most preferred language
+  /// first.
+  ///
+  /// The value of [WorkerNavigator.language] is the
+  /// first element of the returned array.
+  ///
+  /// When its value changes, as the user's preferred languages are changed a
+  /// [Window.languagechange_event] event is fired on the [WorkerGlobalScope]
+  /// object.
+  ///
+  /// The `Accept-Language` HTTP header in every HTTP request from the user's
+  /// browser uses the same value for the `navigator.languages` property except
+  /// for
+  /// the extra `qvalues` (quality values) field (e.g. `en-US;q=0.8`).
   external JSArray<JSString> get languages;
+
+  /// Returns the online status of the browser. The property returns a boolean
+  /// value, with `true` meaning online and `false` meaning offline. The
+  /// property sends updates whenever the browser's ability to connect to the
+  /// network changes. The update occurs when the user follows links or when a
+  /// script requests a remote page.
+  ///
+  /// For example, the property should return `false` when users click links
+  /// soon after they lose internet connection.
+  ///
+  /// Browsers implement this property differently.
+  ///
+  /// In Chrome and Safari, if the browser is not able to connect to a local
+  /// area network (LAN) or a router, it is offline; all other conditions return
+  /// `true`. So while you can assume that the browser is offline when it
+  /// returns a `false` value, you cannot assume that a true value necessarily
+  /// means that the browser can access the internet. You could be getting false
+  /// positives, such as in cases where the computer is running a virtualization
+  /// software that has virtual ethernet adapters that are always
+  /// "connected." Therefore, if you really want to determine the online status
+  /// of the browser, you should develop additional means for checking. To learn
+  /// more, see the 2011 article,
+  /// [Working Off the Grid](https://developer.chrome.com/docs/workbox/service-worker-overview/).
+  ///
+  /// In Firefox, switching the browser to offline mode sends a `false` value.
   external bool get onLine;
+
+  /// The **`navigator.hardwareConcurrency`** read-only property
+  /// returns the number of logical processors available to run threads on the
+  /// user's
+  /// computer.
   external int get hardwareConcurrency;
+
+  /// The **`storage`** read-only property of the [WorkerNavigator] interface
+  /// returns the singleton [StorageManager] object used to
+  /// access the overall storage capabilities of the browser for the current
+  /// site or app.
+  /// The returned object lets you examine and configure persistence of data
+  /// stores and
+  /// learn approximately how much more space your browser has available for
+  /// local storage
+  /// use.
   external StorageManager get storage;
+
+  /// The **`locks`** read-only property of
+  /// the [WorkerNavigator] interface returns a [LockManager]
+  /// object which provides methods for requesting a new [Lock] object and
+  /// querying for an existing `Lock` object.
   external LockManager get locks;
 }
 
@@ -7970,14 +12460,40 @@ extension type WorkerNavigator._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/WorkerLocation).
 extension type WorkerLocation._(JSObject _) implements JSObject {
+  /// The **`href`** property of a [WorkerLocation] object returns a string
+  /// containing the serialized [URL] for the worker's location.
   external String get href;
+
+  /// The **`origin`** property of a [WorkerLocation] object returns the
+  /// worker's [URL.origin].
   external String get origin;
+
+  /// The **`protocol`** property of a [WorkerLocation] object returns the
+  /// [URL.protocol] part of the worker's location.
   external String get protocol;
+
+  /// The **`host`** property of a [WorkerLocation] object returns the
+  /// [URL.host] part of the worker's location.
   external String get host;
+
+  /// The **`hostname`** property of a [WorkerLocation] object returns the
+  /// [URL.hostname] part of the worker's location.
   external String get hostname;
+
+  /// The **`port`** property of a [WorkerLocation] object returns the
+  /// [URL.port] part of the worker's location.
   external String get port;
+
+  /// The **`pathname`** property of a [WorkerLocation] object returns the
+  /// [URL.pathname] part of the worker's location.
   external String get pathname;
+
+  /// The **`search`** property of a [WorkerLocation] object returns the
+  /// [URL.search] part of the worker's location.
   external String get search;
+
+  /// The **`hash`** property of a [WorkerLocation] object returns the
+  /// [URL.hash] part of the worker's location.
   external String get hash;
 }
 
@@ -8028,8 +12544,8 @@ extension type Worklet._(JSObject _) implements JSObject {
 extension type WorkletOptions._(JSObject _) implements JSObject {
   external factory WorkletOptions({RequestCredentials credentials});
 
-  external set credentials(RequestCredentials value);
   external RequestCredentials get credentials;
+  external set credentials(RequestCredentials value);
 }
 
 /// The **`Storage`** interface of the
@@ -8084,6 +12600,10 @@ extension type Storage._(JSObject _) implements JSObject {
   /// The **`clear()`** method of the [Storage]
   /// interface clears all keys stored in a given `Storage` object.
   external void clear();
+
+  /// The **`length`** read-only property of the
+  /// [Storage] interface returns the number of data items stored in a given
+  /// `Storage` object.
   external int get length;
 }
 
@@ -8115,10 +12635,25 @@ extension type StorageEvent._(JSObject _) implements Event, JSObject {
     String url,
     Storage? storageArea,
   ]);
+
+  /// The **`key`** property of the [StorageEvent] interface returns the key for
+  /// the storage item that was changed.
   external String? get key;
+
+  /// The **`oldValue`** property of the [StorageEvent] interface returns the
+  /// original value of the storage item whose value changed.
   external String? get oldValue;
+
+  /// The **`newValue`** property of the [StorageEvent] interface returns the
+  /// new value of the storage item whose value was changed.
   external String? get newValue;
+
+  /// The **`url`** property of the [StorageEvent] interface returns the URL of
+  /// the document whose storage changed.
   external String get url;
+
+  /// The **`storageArea`** property of the [StorageEvent] interface returns the
+  /// storage object that was affected.
   external Storage? get storageArea;
 }
 extension type StorageEventInit._(JSObject _) implements EventInit, JSObject {
@@ -8133,16 +12668,16 @@ extension type StorageEventInit._(JSObject _) implements EventInit, JSObject {
     Storage? storageArea,
   });
 
-  external set key(String? value);
   external String? get key;
-  external set oldValue(String? value);
+  external set key(String? value);
   external String? get oldValue;
-  external set newValue(String? value);
+  external set oldValue(String? value);
   external String? get newValue;
-  external set url(String value);
+  external set newValue(String? value);
   external String get url;
-  external set storageArea(Storage? value);
+  external set url(String value);
   external Storage? get storageArea;
+  external set storageArea(Storage? value);
 }
 
 /// The **`HTMLMarqueeElement`** interface provides methods to manipulate
@@ -8161,28 +12696,28 @@ extension type HTMLMarqueeElement._(JSObject _)
 
   external void start();
   external void stop();
-  external set behavior(String value);
   external String get behavior;
-  external set bgColor(String value);
+  external set behavior(String value);
   external String get bgColor;
-  external set direction(String value);
+  external set bgColor(String value);
   external String get direction;
-  external set height(String value);
+  external set direction(String value);
   external String get height;
-  external set hspace(int value);
+  external set height(String value);
   external int get hspace;
-  external set loop(int value);
+  external set hspace(int value);
   external int get loop;
-  external set scrollAmount(int value);
+  external set loop(int value);
   external int get scrollAmount;
-  external set scrollDelay(int value);
+  external set scrollAmount(int value);
   external int get scrollDelay;
-  external set trueSpeed(bool value);
+  external set scrollDelay(int value);
   external bool get trueSpeed;
-  external set vspace(int value);
+  external set trueSpeed(bool value);
   external int get vspace;
-  external set width(String value);
+  external set vspace(int value);
   external String get width;
+  external set width(String value);
 }
 
 /// The **`HTMLFrameSetElement`** interface provides special properties (beyond
@@ -8198,79 +12733,79 @@ extension type HTMLFrameSetElement._(JSObject _)
   /// Creates an [HTMLFrameSetElement] using the tag 'frameset'.
   HTMLFrameSetElement() : _ = document.createElement('frameset');
 
-  external set cols(String value);
   external String get cols;
-  external set rows(String value);
+  external set cols(String value);
   external String get rows;
-  external set ongamepadconnected(EventHandler value);
+  external set rows(String value);
   external EventHandler get ongamepadconnected;
-  external set ongamepaddisconnected(EventHandler value);
+  external set ongamepadconnected(EventHandler value);
   external EventHandler get ongamepaddisconnected;
-  external set onafterprint(EventHandler value);
+  external set ongamepaddisconnected(EventHandler value);
   external EventHandler get onafterprint;
-  external set onbeforeprint(EventHandler value);
+  external set onafterprint(EventHandler value);
   external EventHandler get onbeforeprint;
-  external set onbeforeunload(OnBeforeUnloadEventHandler value);
+  external set onbeforeprint(EventHandler value);
   external OnBeforeUnloadEventHandler get onbeforeunload;
-  external set onhashchange(EventHandler value);
+  external set onbeforeunload(OnBeforeUnloadEventHandler value);
   external EventHandler get onhashchange;
-  external set onlanguagechange(EventHandler value);
+  external set onhashchange(EventHandler value);
   external EventHandler get onlanguagechange;
-  external set onmessage(EventHandler value);
+  external set onlanguagechange(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onoffline(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onoffline;
-  external set ononline(EventHandler value);
+  external set onoffline(EventHandler value);
   external EventHandler get ononline;
-  external set onpagehide(EventHandler value);
+  external set ononline(EventHandler value);
   external EventHandler get onpagehide;
-  external set onpagereveal(EventHandler value);
+  external set onpagehide(EventHandler value);
   external EventHandler get onpagereveal;
-  external set onpageshow(EventHandler value);
+  external set onpagereveal(EventHandler value);
   external EventHandler get onpageshow;
-  external set onpopstate(EventHandler value);
+  external set onpageshow(EventHandler value);
   external EventHandler get onpopstate;
-  external set onrejectionhandled(EventHandler value);
+  external set onpopstate(EventHandler value);
   external EventHandler get onrejectionhandled;
-  external set onstorage(EventHandler value);
+  external set onrejectionhandled(EventHandler value);
   external EventHandler get onstorage;
-  external set onunhandledrejection(EventHandler value);
+  external set onstorage(EventHandler value);
   external EventHandler get onunhandledrejection;
-  external set onunload(EventHandler value);
+  external set onunhandledrejection(EventHandler value);
   external EventHandler get onunload;
+  external set onunload(EventHandler value);
 }
 extension type HTMLFrameElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLFrameElement] using the tag 'frame'.
   HTMLFrameElement() : _ = document.createElement('frame');
 
-  external set name(String value);
   external String get name;
-  external set scrolling(String value);
+  external set name(String value);
   external String get scrolling;
-  external set src(String value);
+  external set scrolling(String value);
   external String get src;
-  external set frameBorder(String value);
+  external set src(String value);
   external String get frameBorder;
-  external set longDesc(String value);
+  external set frameBorder(String value);
   external String get longDesc;
-  external set noResize(bool value);
+  external set longDesc(String value);
   external bool get noResize;
+  external set noResize(bool value);
   external Document? get contentDocument;
   external Window? get contentWindow;
-  external set marginHeight(String value);
   external String get marginHeight;
-  external set marginWidth(String value);
+  external set marginHeight(String value);
   external String get marginWidth;
+  external set marginWidth(String value);
 }
 extension type HTMLDirectoryElement._(JSObject _)
     implements HTMLElement, JSObject {
   /// Creates an [HTMLDirectoryElement] using the tag 'dir'.
   HTMLDirectoryElement() : _ = document.createElement('dir');
 
-  external set compact(bool value);
   external bool get compact;
+  external set compact(bool value);
 }
 
 /// Implements the document object model (DOM) representation of the font
@@ -8285,12 +12820,86 @@ extension type HTMLFontElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLFontElement] using the tag 'font'.
   HTMLFontElement() : _ = document.createElement('font');
 
-  external set color(String value);
+  /// The obsolete
+  /// **`HTMLFontElement.color`**
+  /// property is a string that reflects the
+  /// [`color`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/font#color)
+  /// HTML attribute, containing either a named color or a color specified in
+  /// the
+  /// hexadecimal #RRGGBB format.
+  ///
+  /// The format of the string must follow one of the following HTML
+  /// microsyntaxes:
+  ///
+  /// | Microsyntax              | Description                                                      | Examples                  |
+  /// | ------------------------ | ---------------------------------------------------------------- | ------------------------- |
+  /// | Valid name color string  | _nameOfColor (case insensitive)_                                 | `Green`, `green`, `GREEN` |
+  /// | Valid hex color string   | _in_ _: #RRGGBB_ | `#008000`                 |
+  /// | RGB using decimal values | _rgb(x,x,x) (x in 0-255 range)_                                  | `rgb(0 128 0)`            |
   external String get color;
-  external set face(String value);
+  external set color(String value);
+
+  /// The obsolete
+  /// **`HTMLFontElement.face`**
+  /// property is a string that reflects the
+  /// [`face`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/font#face)
+  /// HTML attribute, containing a comma-separated list of one or more font
+  /// names.
+  ///
+  /// The document text, in the default style, is rendered as the first font
+  /// face that the
+  /// client's browser supports. If no font listed is installed on the local
+  /// system, the
+  /// browser typically defaults to the proportional or fixed-width font for
+  /// that system.
+  ///
+  /// The format of the string must follow one of the following HTML
+  /// microsyntax:
+  ///
+  /// | Microsyntax                                 | Description                                                         | Examples          |
+  /// | ------------------------------------------- | ------------------------------------------------------------------- | ----------------- |
+  /// | List of one or more valid font family names | _A list of font names, that have to be present on the local system_ | `courier,verdana` |
   external String get face;
-  external set size(String value);
+  external set face(String value);
+
+  /// The obsolete
+  /// **`HTMLFontElement.size`** property is a
+  /// string that reflects the
+  /// [`size`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/font#size)
+  /// HTML
+  /// attribute. It contains either a font size ranging from 1 to 7 or a
+  /// number relative to the default value 3, for example -2 or +1.
+  ///
+  /// The format of the string must follow one of the following HTML
+  /// microsyntaxes:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th scope="col">Microsyntax</th>
+  ///       <th scope="col">Description</th>
+  ///       <th scope="col">Examples</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td>Valid size number string</td>
+  ///       <td><em>integer number in the range of 1-7</em></td>
+  ///       <td><code>6</code></td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>Relative size string</td>
+  ///       <td>
+  ///         <em>+x or -x, where x is a number relative to 3 (the result should be in the range of 1-7)</em>
+  ///       </td>
+  ///       <td>
+  ///         <code>+2<br />-1</code>
+  ///       </td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external String get size;
+  external set size(String value);
 }
 
 /// The **`HTMLParamElement`** interface provides special properties (beyond
@@ -8306,14 +12915,14 @@ extension type HTMLParamElement._(JSObject _) implements HTMLElement, JSObject {
   /// Creates an [HTMLParamElement] using the tag 'param'.
   HTMLParamElement() : _ = document.createElement('param');
 
-  external set name(String value);
   external String get name;
-  external set value(String value);
+  external set name(String value);
   external String get value;
-  external set type(String value);
+  external set value(String value);
   external String get type;
-  external set valueType(String value);
+  external set type(String value);
   external String get valueType;
+  external set valueType(String value);
 }
 extension type External._(JSObject _) implements JSObject {
   external void AddSearchProvider();
diff --git a/lib/src/dom/indexeddb.dart b/lib/src/dom/indexeddb.dart
index cfbffedf..50c8e5a1 100644
--- a/lib/src/dom/indexeddb.dart
+++ b/lib/src/dom/indexeddb.dart
@@ -54,15 +54,53 @@ typedef IDBTransactionMode = String;
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/IDBRequest).
 extension type IDBRequest._(JSObject _) implements EventTarget, JSObject {
+  /// The **`result`** read-only property of the
+  /// [IDBRequest] interface returns the result of the request. If the request
+  /// is not completed, the result is not available and an `InvalidStateError`
+  /// exception is
+  /// thrown.
   external JSAny? get result;
+
+  /// The **`error`** read-only property of the
+  /// [IDBRequest] interface returns the error in the event of an unsuccessful
+  /// request.
   external DOMException? get error;
+
+  /// The **`source`** read-only property of the
+  /// [IDBRequest] interface returns the source of the request, such as an
+  /// Index or an object store. If no source exists (such as when calling
+  /// [IDBFactory.open]), it returns null.
   external JSObject? get source;
+
+  /// The **`transaction`** read-only property of the IDBRequest
+  /// interface returns the transaction for the request, that is, the
+  /// transaction the
+  /// request is being made inside.
+  ///
+  /// This property can be `null` for requests not made within transactions,
+  /// such as for requests returned from [IDBFactory.open] — in this case
+  /// you're just connecting to a database, so there is no transaction to
+  /// return. If a
+  /// version upgrade is needed when opening a database then during the
+  /// [IDBOpenDBRequest.upgradeneeded_event] event handler the
+  /// **`transaction`** property will be an
+  /// [IDBTransaction] with [IDBTransaction.mode] equal
+  /// to `"versionchange"`, and can be used to access existing object stores and
+  /// indexes, or abort the upgrade. Following the upgrade, the
+  /// **`transaction`** property will again be `null`.
   external IDBTransaction? get transaction;
+
+  /// The **`readyState`** read-only property of the
+  /// [IDBRequest] interface returns the state of the request.
+  ///
+  /// Every request starts in the `pending` state. The state changes to
+  /// `done` when the request completes successfully or when an error
+  /// occurs.
   external IDBRequestReadyState get readyState;
-  external set onsuccess(EventHandler value);
   external EventHandler get onsuccess;
-  external set onerror(EventHandler value);
+  external set onsuccess(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 
 /// The **`IDBOpenDBRequest`** interface of the IndexedDB API provides access to
@@ -75,10 +113,10 @@ extension type IDBRequest._(JSObject _) implements EventTarget, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/IDBOpenDBRequest).
 extension type IDBOpenDBRequest._(JSObject _) implements IDBRequest, JSObject {
-  external set onblocked(EventHandler value);
   external EventHandler get onblocked;
-  external set onupgradeneeded(EventHandler value);
+  external set onblocked(EventHandler value);
   external EventHandler get onupgradeneeded;
+  external set onupgradeneeded(EventHandler value);
 }
 
 /// The **`IDBVersionChangeEvent`** interface of the
@@ -96,7 +134,17 @@ extension type IDBVersionChangeEvent._(JSObject _) implements Event, JSObject {
     IDBVersionChangeEventInit eventInitDict,
   ]);
 
+  /// The **`oldVersion`** read-only property of the
+  /// [IDBVersionChangeEvent] interface returns the old version number of the
+  /// database.
+  ///
+  /// When the opened database doesn't exist yet, the value of `oldVersion` is
+  /// 0.
   external int get oldVersion;
+
+  /// The **`newVersion`** read-only property of the
+  /// [IDBVersionChangeEvent] interface returns the new version number of the
+  /// database.
   external int? get newVersion;
 }
 extension type IDBVersionChangeEventInit._(JSObject _)
@@ -109,10 +157,10 @@ extension type IDBVersionChangeEventInit._(JSObject _)
     int? newVersion,
   });
 
-  external set oldVersion(int value);
   external int get oldVersion;
-  external set newVersion(int? value);
+  external set oldVersion(int value);
   external int? get newVersion;
+  external set newVersion(int? value);
 }
 
 /// The **`IDBFactory`** interface of the
@@ -196,10 +244,10 @@ extension type IDBDatabaseInfo._(JSObject _) implements JSObject {
     int version,
   });
 
-  external set name(String value);
   external String get name;
-  external set version(int value);
+  external set name(String value);
   external int get version;
+  external set version(int value);
 }
 
 /// The **`IDBDatabase`** interface of the IndexedDB API provides a
@@ -274,23 +322,39 @@ extension type IDBDatabase._(JSObject _) implements EventTarget, JSObject {
   /// [`versionchange`](https://developer.mozilla.org/en-US/docs/Web/API/IDBTransaction#version_change)
   /// transaction.
   external void deleteObjectStore(String name);
+
+  /// The **`name`** read-only property of the
+  /// `IDBDatabase` interface is a string that contains the
+  /// name of the connected database.
   external String get name;
+
+  /// The **`version`** property of the [IDBDatabase]
+  /// interface is a
+  /// [64-bit integer](https://developer.mozilla.org/en-US/docs/NSPR_API_Reference/Long_Long_%2864-bit%29_Integers)
+  /// that contains the version of the connected database.
+  /// When a database is first created, this attribute is an empty string.
   external int get version;
+
+  /// The **`objectStoreNames`** read-only property of the
+  /// [IDBDatabase] interface is a [DOMStringList] containing a
+  /// list of the names of the
+  /// [object stores](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Basic_Terminology#object_store)
+  /// currently in the connected database.
   external DOMStringList get objectStoreNames;
-  external set onabort(EventHandler value);
   external EventHandler get onabort;
-  external set onclose(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onclose;
-  external set onerror(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get onerror;
-  external set onversionchange(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onversionchange;
+  external set onversionchange(EventHandler value);
 }
 extension type IDBTransactionOptions._(JSObject _) implements JSObject {
   external factory IDBTransactionOptions({IDBTransactionDurability durability});
 
-  external set durability(IDBTransactionDurability value);
   external IDBTransactionDurability get durability;
+  external set durability(IDBTransactionDurability value);
 }
 extension type IDBObjectStoreParameters._(JSObject _) implements JSObject {
   external factory IDBObjectStoreParameters({
@@ -298,10 +362,10 @@ extension type IDBObjectStoreParameters._(JSObject _) implements JSObject {
     bool autoIncrement,
   });
 
-  external set keyPath(JSAny? value);
   external JSAny? get keyPath;
-  external set autoIncrement(bool value);
+  external set keyPath(JSAny? value);
   external bool get autoIncrement;
+  external set autoIncrement(bool value);
 }
 
 /// The **`IDBObjectStore`** interface of the
@@ -547,11 +611,39 @@ extension type IDBObjectStore._(JSObject _) implements JSObject {
   /// mode callback. Note that this method synchronously modifies the
   /// [IDBObjectStore.indexNames] property.
   external void deleteIndex(String name);
-  external set name(String value);
+
+  /// The **`name`** property of the [IDBObjectStore]
+  /// interface indicates the name of this object store.
   external String get name;
+  external set name(String value);
+
+  /// The **`keyPath`** read-only property of the
+  /// [IDBObjectStore] interface returns the
+  /// [key path](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Basic_Terminology#key_path)
+  /// of this object store.
+  ///
+  /// If this property is null, the application must provide a key for each
+  /// modification
+  /// operation.
   external JSAny? get keyPath;
+
+  /// The **`indexNames`** read-only property of the
+  /// [IDBObjectStore] interface returns a list of the names of
+  /// [indexes](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Basic_Terminology#index)
+  /// on objects
+  /// in this object store.
   external DOMStringList get indexNames;
+
+  /// The **`transaction`** read-only property of the
+  /// [IDBObjectStore] interface returns the transaction object to which this
+  /// object store belongs.
   external IDBTransaction get transaction;
+
+  /// The **`autoIncrement`** read-only property of the
+  /// [IDBObjectStore] interface returns the value of the auto increment flag
+  /// for this object store.
+  ///
+  /// Note that every object store has its own separate auto increment counter.
   external bool get autoIncrement;
 }
 extension type IDBIndexParameters._(JSObject _) implements JSObject {
@@ -560,10 +652,10 @@ extension type IDBIndexParameters._(JSObject _) implements JSObject {
     bool multiEntry,
   });
 
-  external set unique(bool value);
   external bool get unique;
-  external set multiEntry(bool value);
+  external set unique(bool value);
   external bool get multiEntry;
+  external set multiEntry(bool value);
 }
 
 /// `IDBIndex` interface of the
@@ -694,11 +786,39 @@ extension type IDBIndex._(JSObject _) implements JSObject {
     JSAny? query,
     IDBCursorDirection direction,
   ]);
-  external set name(String value);
+
+  /// The **`name`** property of the [IDBIndex]
+  /// interface contains a string which names the index.
   external String get name;
+  external set name(String value);
+
+  /// The **`objectStore`** property of the [IDBIndex]
+  /// interface returns the object store referenced by the current index.
   external IDBObjectStore get objectStore;
+
+  /// The **`keyPath`** property of the [IDBIndex]
+  /// interface returns the
+  /// [key path](https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API/Basic_Terminology#key_path)
+  /// of the current index. If null, this index is not auto-populated.
   external JSAny? get keyPath;
+
+  /// The **`multiEntry`** read-only property of the
+  /// [IDBIndex] interface returns a boolean value that affects how the index
+  /// behaves when the result of evaluating the index's key path yields an
+  /// array.
+  ///
+  /// This is decided when the index is created, using the
+  /// [IDBObjectStore.createIndex] method. This method takes an optional
+  /// `options` parameter whose `multiEntry` property is set to `true`/`false`.
   external bool get multiEntry;
+
+  /// The **`unique`** read-only property returns a boolean that
+  /// states whether the index allows duplicate keys.
+  ///
+  /// This is decided when the index is created, using the
+  /// [IDBObjectStore.createIndex] method. This method takes an optional
+  /// parameter, `unique`, which if set to `true` means that the index
+  /// will not be able to accept duplicate entries.
   external bool get unique;
 }
 
@@ -769,9 +889,23 @@ extension type IDBKeyRange._(JSObject _) implements JSObject {
   /// the key
   /// range.
   external bool includes(JSAny? key);
+
+  /// The **`lower`** read-only property of the
+  /// [IDBKeyRange] interface returns the lower bound of the key range.
   external JSAny? get lower;
+
+  /// The **`upper`** read-only property of the
+  /// [IDBKeyRange] interface returns the upper bound of the key range.
   external JSAny? get upper;
+
+  /// The **`lowerOpen`** read-only property of the
+  /// [IDBKeyRange] interface returns a boolean indicating whether the
+  /// lower-bound value is included in the key range.
   external bool get lowerOpen;
+
+  /// The **`upperOpen`** read-only property of the
+  /// [IDBKeyRange] interface returns a boolean indicating whether the
+  /// upper-bound value is included in the key range.
   external bool get upperOpen;
 }
 
@@ -863,10 +997,38 @@ extension type IDBCursor._(JSObject _) implements JSObject {
   /// [IDBIndex.openKeyCursor]. For such needs, you have to use
   /// [IDBIndex.openCursor] instead.
   external IDBRequest delete();
+
+  /// The **`source`** read-only property of the
+  /// [IDBCursor] interface returns the [IDBObjectStore] or
+  /// [IDBIndex] that the cursor is iterating over. This function never returns
+  /// null or throws an exception, even if the cursor is currently being
+  /// iterated, has
+  /// iterated past its end, or its transaction is not active.
   external JSObject get source;
+
+  /// The **`direction`** read-only property of the
+  /// [IDBCursor] interface is a string that returns the
+  /// direction of traversal of the cursor (set using
+  /// [IDBObjectStore.openCursor] for example). See the [Values](#values)
+  /// section below for possible values.
   external IDBCursorDirection get direction;
+
+  /// The **`key`** read-only property of the
+  /// [IDBCursor] interface returns the key for the record at the cursor's
+  /// position. If the cursor is outside its range, this is set to undefined.
+  /// The cursor's
+  /// key can be any data type.
   external JSAny? get key;
+
+  /// The **`primaryKey`** read-only property of the
+  /// [IDBCursor] interface returns the cursor's current effective key. If the
+  /// cursor is currently being iterated or has iterated outside its range, this
+  /// is set to
+  /// undefined. The cursor's primary key can be any data type.
   external JSAny? get primaryKey;
+
+  /// The **`request`** read-only property of the [IDBCursor] interface returns
+  /// the [IDBRequest] used to obtain the cursor.
   external IDBRequest get request;
 }
 
@@ -892,6 +1054,9 @@ extension type IDBCursor._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/IDBCursorWithValue).
 extension type IDBCursorWithValue._(JSObject _) implements IDBCursor, JSObject {
+  /// The **`value`** read-only property of the
+  /// [IDBCursorWithValue] interface returns the value of the current cursor,
+  /// whatever that is.
   external JSAny? get value;
 }
 
@@ -956,15 +1121,43 @@ extension type IDBTransaction._(JSObject _) implements EventTarget, JSObject {
   /// All pending [IDBRequest] objects created during this transaction have
   /// their [IDBRequest.error] attribute set to an `AbortError` [DOMException].
   external void abort();
+
+  /// The **`objectStoreNames`** read-only property of the
+  /// [IDBTransaction] interface returns a [DOMStringList] of names
+  /// of [IDBObjectStore] objects.
   external DOMStringList get objectStoreNames;
+
+  /// The **`mode`** read-only property of the
+  /// [IDBTransaction] interface returns the current mode for accessing the
+  /// data in the object stores in the scope of the transaction (i.e. is the
+  /// mode to be
+  /// read-only, or do you want to write to the object stores?) The default
+  /// value is
+  /// `readonly`.
   external IDBTransactionMode get mode;
+
+  /// The **`durability`** read-only property of the
+  /// [IDBTransaction] interface returns the durability hint the transaction was
+  /// created with. This is a hint to the user agent of whether to prioritize
+  /// performance or
+  /// durability when committing the transaction.
+  ///
+  /// The value of this property is defined in the `options` parameter when
+  /// creating a transaction using [IDBDatabase.transaction].
   external IDBTransactionDurability get durability;
+
+  /// The **`db`** read-only property of the [IDBTransaction] interface returns
+  /// the database connection
+  /// with which this transaction is associated.
   external IDBDatabase get db;
+
+  /// The **`IDBTransaction.error`** property of the [IDBTransaction] interface
+  /// returns the type of error when there is an unsuccessful transaction.
   external DOMException? get error;
-  external set onabort(EventHandler value);
   external EventHandler get onabort;
-  external set oncomplete(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get oncomplete;
-  external set onerror(EventHandler value);
+  external set oncomplete(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
diff --git a/lib/src/dom/intersection_observer.dart b/lib/src/dom/intersection_observer.dart
index 962e20dc..126d526f 100644
--- a/lib/src/dom/intersection_observer.dart
+++ b/lib/src/dom/intersection_observer.dart
@@ -104,9 +104,48 @@ extension type IntersectionObserver._(JSObject _) implements JSObject {
   /// > intersection list, so
   /// > the callback will not be run.
   external JSArray<IntersectionObserverEntry> takeRecords();
+
+  /// The [IntersectionObserver] interface's read-only
+  /// **`root`** property identifies the [Element] or
+  /// [Document] whose bounds are treated as the
+  /// of the  for the element which is the observer's target.
+  ///
+  /// If the `root` is `null`, then the bounds of the actual document
+  /// viewport are used.
   external JSObject? get root;
+
+  /// The [IntersectionObserver] interface's read-only
+  /// **`rootMargin`** property is a string with syntax similar to
+  /// that of the CSS `margin` property. Each side of the rectangle represented
+  /// by `rootMargin` is added to the corresponding side in the
+  /// [IntersectionObserver.root] element's
+  /// before the intersection test is performed. This lets you, for example,
+  /// adjust the bounds
+  /// outward so that the target element is considered 100% visible even if a
+  /// certain number
+  /// of pixels worth of width or height is clipped away, or treat the target as
+  /// partially
+  /// hidden if an edge is too close to the edge of the root's bounding box.
+  ///
+  /// See
+  /// [how intersections are calculated](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#how_intersection_is_calculated)
+  /// for a more in-depth look at the root margin and how it works with
+  /// the root's bounding box.
   external String get rootMargin;
   external String get scrollMargin;
+
+  /// The [IntersectionObserver] interface's read-only
+  /// **`thresholds`** property returns the list of intersection
+  /// thresholds that was specified when the observer was instantiated with
+  /// [IntersectionObserver.IntersectionObserver]. If
+  /// only one threshold ratio was provided when instantiating the object, this
+  /// will be an
+  /// array containing that single value.
+  ///
+  /// See the
+  /// [Intersection Observer](https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API#thresholds)
+  /// page to
+  /// learn how thresholds work.
   external JSArray<JSNumber> get thresholds;
 }
 
@@ -127,12 +166,54 @@ extension type IntersectionObserverEntry._(JSObject _) implements JSObject {
   external factory IntersectionObserverEntry(
       IntersectionObserverEntryInit intersectionObserverEntryInit);
 
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`time`** property is a
+  /// [DOMHighResTimeStamp] that indicates the time at which the intersection
+  /// change occurred relative to the time at which the document was created.
   external DOMHighResTimeStamp get time;
+
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`rootBounds`** property is a
+  /// [DOMRectReadOnly] corresponding to the
+  /// [IntersectionObserverEntry.target]'s root intersection
+  /// rectangle, offset by the [IntersectionObserver.rootMargin] if one is
+  /// specified.
   external DOMRectReadOnly? get rootBounds;
+
+  /// The [IntersectionObserverEntry] interface's read-only
+  /// **`boundingClientRect`** property returns a
+  /// [DOMRectReadOnly] which in essence describes a rectangle describing the
+  /// smallest rectangle that contains the entire target element.
   external DOMRectReadOnly get boundingClientRect;
+
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`intersectionRect`** property is a
+  /// [DOMRectReadOnly] object which describes the smallest rectangle that
+  /// contains the entire portion of the target element which is currently
+  /// visible within
+  /// the intersection root.
   external DOMRectReadOnly get intersectionRect;
+
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`isIntersecting`** property is a Boolean value
+  /// which is `true` if the target element intersects with the intersection
+  /// observer's root. If this is `true`, then, the
+  /// `IntersectionObserverEntry` describes a transition into a state of
+  /// intersection; if it's `false`, then you know the transition is from
+  /// intersecting to not-intersecting.
   external bool get isIntersecting;
+
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`intersectionRatio`** property tells you how much
+  /// of the target element is currently visible within the root's intersection
+  /// ratio, as a
+  /// value between 0.0 and 1.0.
   external num get intersectionRatio;
+
+  /// The [IntersectionObserverEntry] interface's
+  /// read-only **`target`** property indicates which targeted
+  /// [Element] has changed its amount of intersection with the intersection
+  /// root.
   external Element get target;
 }
 extension type IntersectionObserverEntryInit._(JSObject _) implements JSObject {
@@ -146,20 +227,20 @@ extension type IntersectionObserverEntryInit._(JSObject _) implements JSObject {
     required Element target,
   });
 
-  external set time(DOMHighResTimeStamp value);
   external DOMHighResTimeStamp get time;
-  external set rootBounds(DOMRectInit? value);
+  external set time(DOMHighResTimeStamp value);
   external DOMRectInit? get rootBounds;
-  external set boundingClientRect(DOMRectInit value);
+  external set rootBounds(DOMRectInit? value);
   external DOMRectInit get boundingClientRect;
-  external set intersectionRect(DOMRectInit value);
+  external set boundingClientRect(DOMRectInit value);
   external DOMRectInit get intersectionRect;
-  external set isIntersecting(bool value);
+  external set intersectionRect(DOMRectInit value);
   external bool get isIntersecting;
-  external set intersectionRatio(num value);
+  external set isIntersecting(bool value);
   external num get intersectionRatio;
-  external set target(Element value);
+  external set intersectionRatio(num value);
   external Element get target;
+  external set target(Element value);
 }
 extension type IntersectionObserverInit._(JSObject _) implements JSObject {
   external factory IntersectionObserverInit({
@@ -169,12 +250,12 @@ extension type IntersectionObserverInit._(JSObject _) implements JSObject {
     JSAny threshold,
   });
 
-  external set root(JSObject? value);
   external JSObject? get root;
-  external set rootMargin(String value);
+  external set root(JSObject? value);
   external String get rootMargin;
-  external set scrollMargin(String value);
+  external set rootMargin(String value);
   external String get scrollMargin;
-  external set threshold(JSAny value);
+  external set scrollMargin(String value);
   external JSAny get threshold;
+  external set threshold(JSAny value);
 }
diff --git a/lib/src/dom/mathml_core.dart b/lib/src/dom/mathml_core.dart
index 5e57deb8..9db12244 100644
--- a/lib/src/dom/mathml_core.dart
+++ b/lib/src/dom/mathml_core.dart
@@ -239,212 +239,252 @@ extension type MathMLElement._(JSObject _) implements Element, JSObject {
   external void focus([FocusOptions options]);
   external void blur();
   external StylePropertyMap get attributeStyleMap;
+
+  /// The read-only **`style`** property of the [MathMLElement] returns the
+  /// _inline_ style of an element in the form of a live [CSSStyleDeclaration]
+  /// object that contains a list of all styles properties for that element with
+  /// values assigned only for the attributes that are defined in the element's
+  /// inline
+  /// [`style`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/style)
+  /// attribute.
+  ///
+  /// Shorthand properties are expanded. If you set `style="border-top: 1px
+  /// solid black"`, the longhand properties (, , and ) are set instead.
+  ///
+  /// This property is read-only, meaning it is not possible to assign a
+  /// [CSSStyleDeclaration] object to it. Nevertheless, it is possible to set an
+  /// inline style by assigning a _string_ directly to the `style` property. In
+  /// this case the string is forwarded to [CSSStyleDeclaration.cssText]. Using
+  /// `style` in this manner will completely overwrite all inline styles on the
+  /// element.
+  ///
+  /// Therefore, to add specific styles to an element without altering other
+  /// style values, it is generally preferable to set individual properties on
+  /// the [CSSStyleDeclaration] object. For example, you can write
+  /// `element.style.backgroundColor = "red"`.
+  ///
+  /// A style declaration is reset by setting it to `null` or an empty string,
+  /// e.g., `elt.style.color = null`.
+  ///
+  /// > **Note:** CSS property names are converted to JavaScript identifier with
+  /// > these rules:
+  /// >
+  /// > - If the property is made of one word, it remains as it is: `height`
+  /// > stays as is (in lowercase).
+  /// > - If the property is made of several words, separated by dashes, the
+  /// > dashes are removed and it is converted to : `background-attachment`
+  /// > becomes `backgroundAttachment`.
+  /// > - The property `float`, being a reserved JavaScript keyword, is
+  /// > converted to `cssFloat`.
+  /// >
+  /// > The `style` property has the same priority in the CSS cascade as an
+  /// > inline style declaration set via the `style` attribute.
   external CSSStyleDeclaration get style;
-  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationstart;
-  external set onanimationiteration(EventHandler value);
+  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationiteration;
-  external set onanimationend(EventHandler value);
+  external set onanimationiteration(EventHandler value);
   external EventHandler get onanimationend;
-  external set onanimationcancel(EventHandler value);
+  external set onanimationend(EventHandler value);
   external EventHandler get onanimationcancel;
-  external set ontransitionrun(EventHandler value);
+  external set onanimationcancel(EventHandler value);
   external EventHandler get ontransitionrun;
-  external set ontransitionstart(EventHandler value);
+  external set ontransitionrun(EventHandler value);
   external EventHandler get ontransitionstart;
-  external set ontransitionend(EventHandler value);
+  external set ontransitionstart(EventHandler value);
   external EventHandler get ontransitionend;
-  external set ontransitioncancel(EventHandler value);
+  external set ontransitionend(EventHandler value);
   external EventHandler get ontransitioncancel;
-  external set onabort(EventHandler value);
+  external set ontransitioncancel(EventHandler value);
   external EventHandler get onabort;
-  external set onauxclick(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onauxclick;
-  external set onbeforeinput(EventHandler value);
+  external set onauxclick(EventHandler value);
   external EventHandler get onbeforeinput;
-  external set onbeforematch(EventHandler value);
+  external set onbeforeinput(EventHandler value);
   external EventHandler get onbeforematch;
-  external set onbeforetoggle(EventHandler value);
+  external set onbeforematch(EventHandler value);
   external EventHandler get onbeforetoggle;
-  external set onblur(EventHandler value);
+  external set onbeforetoggle(EventHandler value);
   external EventHandler get onblur;
-  external set oncancel(EventHandler value);
+  external set onblur(EventHandler value);
   external EventHandler get oncancel;
-  external set oncanplay(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get oncanplay;
-  external set oncanplaythrough(EventHandler value);
+  external set oncanplay(EventHandler value);
   external EventHandler get oncanplaythrough;
-  external set onchange(EventHandler value);
+  external set oncanplaythrough(EventHandler value);
   external EventHandler get onchange;
-  external set onclick(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onclick;
-  external set onclose(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onclose;
-  external set oncontextlost(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get oncontextlost;
-  external set oncontextmenu(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextmenu;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextmenu(EventHandler value);
   external EventHandler get oncontextrestored;
-  external set oncopy(EventHandler value);
+  external set oncontextrestored(EventHandler value);
   external EventHandler get oncopy;
-  external set oncuechange(EventHandler value);
+  external set oncopy(EventHandler value);
   external EventHandler get oncuechange;
-  external set oncut(EventHandler value);
+  external set oncuechange(EventHandler value);
   external EventHandler get oncut;
-  external set ondblclick(EventHandler value);
+  external set oncut(EventHandler value);
   external EventHandler get ondblclick;
-  external set ondrag(EventHandler value);
+  external set ondblclick(EventHandler value);
   external EventHandler get ondrag;
-  external set ondragend(EventHandler value);
+  external set ondrag(EventHandler value);
   external EventHandler get ondragend;
-  external set ondragenter(EventHandler value);
+  external set ondragend(EventHandler value);
   external EventHandler get ondragenter;
-  external set ondragleave(EventHandler value);
+  external set ondragenter(EventHandler value);
   external EventHandler get ondragleave;
-  external set ondragover(EventHandler value);
+  external set ondragleave(EventHandler value);
   external EventHandler get ondragover;
-  external set ondragstart(EventHandler value);
+  external set ondragover(EventHandler value);
   external EventHandler get ondragstart;
-  external set ondrop(EventHandler value);
+  external set ondragstart(EventHandler value);
   external EventHandler get ondrop;
-  external set ondurationchange(EventHandler value);
+  external set ondrop(EventHandler value);
   external EventHandler get ondurationchange;
-  external set onemptied(EventHandler value);
+  external set ondurationchange(EventHandler value);
   external EventHandler get onemptied;
-  external set onended(EventHandler value);
+  external set onemptied(EventHandler value);
   external EventHandler get onended;
-  external set onerror(OnErrorEventHandler value);
+  external set onended(EventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onfocus(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onfocus;
-  external set onformdata(EventHandler value);
+  external set onfocus(EventHandler value);
   external EventHandler get onformdata;
-  external set oninput(EventHandler value);
+  external set onformdata(EventHandler value);
   external EventHandler get oninput;
-  external set oninvalid(EventHandler value);
+  external set oninput(EventHandler value);
   external EventHandler get oninvalid;
-  external set onkeydown(EventHandler value);
+  external set oninvalid(EventHandler value);
   external EventHandler get onkeydown;
-  external set onkeypress(EventHandler value);
+  external set onkeydown(EventHandler value);
   external EventHandler get onkeypress;
-  external set onkeyup(EventHandler value);
+  external set onkeypress(EventHandler value);
   external EventHandler get onkeyup;
-  external set onload(EventHandler value);
+  external set onkeyup(EventHandler value);
   external EventHandler get onload;
-  external set onloadeddata(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onloadeddata;
-  external set onloadedmetadata(EventHandler value);
+  external set onloadeddata(EventHandler value);
   external EventHandler get onloadedmetadata;
-  external set onloadstart(EventHandler value);
+  external set onloadedmetadata(EventHandler value);
   external EventHandler get onloadstart;
-  external set onmousedown(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onmousedown;
-  external set onmouseenter(EventHandler value);
+  external set onmousedown(EventHandler value);
   external EventHandler get onmouseenter;
-  external set onmouseleave(EventHandler value);
+  external set onmouseenter(EventHandler value);
   external EventHandler get onmouseleave;
-  external set onmousemove(EventHandler value);
+  external set onmouseleave(EventHandler value);
   external EventHandler get onmousemove;
-  external set onmouseout(EventHandler value);
+  external set onmousemove(EventHandler value);
   external EventHandler get onmouseout;
-  external set onmouseover(EventHandler value);
+  external set onmouseout(EventHandler value);
   external EventHandler get onmouseover;
-  external set onmouseup(EventHandler value);
+  external set onmouseover(EventHandler value);
   external EventHandler get onmouseup;
-  external set onpaste(EventHandler value);
+  external set onmouseup(EventHandler value);
   external EventHandler get onpaste;
-  external set onpause(EventHandler value);
+  external set onpaste(EventHandler value);
   external EventHandler get onpause;
-  external set onplay(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onplay;
-  external set onplaying(EventHandler value);
+  external set onplay(EventHandler value);
   external EventHandler get onplaying;
-  external set onprogress(EventHandler value);
+  external set onplaying(EventHandler value);
   external EventHandler get onprogress;
-  external set onratechange(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onratechange;
-  external set onreset(EventHandler value);
+  external set onratechange(EventHandler value);
   external EventHandler get onreset;
-  external set onresize(EventHandler value);
+  external set onreset(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
-  external set onsecuritypolicyviolation(EventHandler value);
+  external set onscrollend(EventHandler value);
   external EventHandler get onsecuritypolicyviolation;
-  external set onseeked(EventHandler value);
+  external set onsecuritypolicyviolation(EventHandler value);
   external EventHandler get onseeked;
-  external set onseeking(EventHandler value);
+  external set onseeked(EventHandler value);
   external EventHandler get onseeking;
-  external set onselect(EventHandler value);
+  external set onseeking(EventHandler value);
   external EventHandler get onselect;
-  external set onslotchange(EventHandler value);
+  external set onselect(EventHandler value);
   external EventHandler get onslotchange;
-  external set onstalled(EventHandler value);
+  external set onslotchange(EventHandler value);
   external EventHandler get onstalled;
-  external set onsubmit(EventHandler value);
+  external set onstalled(EventHandler value);
   external EventHandler get onsubmit;
-  external set onsuspend(EventHandler value);
+  external set onsubmit(EventHandler value);
   external EventHandler get onsuspend;
-  external set ontimeupdate(EventHandler value);
+  external set onsuspend(EventHandler value);
   external EventHandler get ontimeupdate;
-  external set ontoggle(EventHandler value);
+  external set ontimeupdate(EventHandler value);
   external EventHandler get ontoggle;
-  external set onvolumechange(EventHandler value);
+  external set ontoggle(EventHandler value);
   external EventHandler get onvolumechange;
-  external set onwaiting(EventHandler value);
+  external set onvolumechange(EventHandler value);
   external EventHandler get onwaiting;
-  external set onwebkitanimationend(EventHandler value);
+  external set onwaiting(EventHandler value);
   external EventHandler get onwebkitanimationend;
-  external set onwebkitanimationiteration(EventHandler value);
+  external set onwebkitanimationend(EventHandler value);
   external EventHandler get onwebkitanimationiteration;
-  external set onwebkitanimationstart(EventHandler value);
+  external set onwebkitanimationiteration(EventHandler value);
   external EventHandler get onwebkitanimationstart;
-  external set onwebkittransitionend(EventHandler value);
+  external set onwebkitanimationstart(EventHandler value);
   external EventHandler get onwebkittransitionend;
-  external set onwheel(EventHandler value);
+  external set onwebkittransitionend(EventHandler value);
   external EventHandler get onwheel;
-  external set onpointerover(EventHandler value);
+  external set onwheel(EventHandler value);
   external EventHandler get onpointerover;
-  external set onpointerenter(EventHandler value);
+  external set onpointerover(EventHandler value);
   external EventHandler get onpointerenter;
-  external set onpointerdown(EventHandler value);
+  external set onpointerenter(EventHandler value);
   external EventHandler get onpointerdown;
-  external set onpointermove(EventHandler value);
+  external set onpointerdown(EventHandler value);
   external EventHandler get onpointermove;
-  external set onpointerrawupdate(EventHandler value);
+  external set onpointermove(EventHandler value);
   external EventHandler get onpointerrawupdate;
-  external set onpointerup(EventHandler value);
+  external set onpointerrawupdate(EventHandler value);
   external EventHandler get onpointerup;
-  external set onpointercancel(EventHandler value);
+  external set onpointerup(EventHandler value);
   external EventHandler get onpointercancel;
-  external set onpointerout(EventHandler value);
+  external set onpointercancel(EventHandler value);
   external EventHandler get onpointerout;
-  external set onpointerleave(EventHandler value);
+  external set onpointerout(EventHandler value);
   external EventHandler get onpointerleave;
-  external set ongotpointercapture(EventHandler value);
+  external set onpointerleave(EventHandler value);
   external EventHandler get ongotpointercapture;
-  external set onlostpointercapture(EventHandler value);
+  external set ongotpointercapture(EventHandler value);
   external EventHandler get onlostpointercapture;
-  external set onselectstart(EventHandler value);
+  external set onlostpointercapture(EventHandler value);
   external EventHandler get onselectstart;
-  external set onselectionchange(EventHandler value);
+  external set onselectstart(EventHandler value);
   external EventHandler get onselectionchange;
-  external set ontouchstart(EventHandler value);
+  external set onselectionchange(EventHandler value);
   external EventHandler get ontouchstart;
-  external set ontouchend(EventHandler value);
+  external set ontouchstart(EventHandler value);
   external EventHandler get ontouchend;
-  external set ontouchmove(EventHandler value);
+  external set ontouchend(EventHandler value);
   external EventHandler get ontouchmove;
-  external set ontouchcancel(EventHandler value);
+  external set ontouchmove(EventHandler value);
   external EventHandler get ontouchcancel;
+  external set ontouchcancel(EventHandler value);
   external DOMStringMap get dataset;
-  external set nonce(String value);
   external String get nonce;
-  external set autofocus(bool value);
+  external set nonce(String value);
   external bool get autofocus;
-  external set tabIndex(int value);
+  external set autofocus(bool value);
   external int get tabIndex;
+  external set tabIndex(int value);
 }
diff --git a/lib/src/dom/media_capabilities.dart b/lib/src/dom/media_capabilities.dart
index e2b8505f..5a7adf18 100644
--- a/lib/src/dom/media_capabilities.dart
+++ b/lib/src/dom/media_capabilities.dart
@@ -26,10 +26,10 @@ extension type MediaConfiguration._(JSObject _) implements JSObject {
     AudioConfiguration audio,
   });
 
-  external set video(VideoConfiguration value);
   external VideoConfiguration get video;
-  external set audio(AudioConfiguration value);
+  external set video(VideoConfiguration value);
   external AudioConfiguration get audio;
+  external set audio(AudioConfiguration value);
 }
 extension type MediaDecodingConfiguration._(JSObject _)
     implements MediaConfiguration, JSObject {
@@ -40,11 +40,11 @@ extension type MediaDecodingConfiguration._(JSObject _)
     MediaCapabilitiesKeySystemConfiguration keySystemConfiguration,
   });
 
-  external set type(MediaDecodingType value);
   external MediaDecodingType get type;
+  external set type(MediaDecodingType value);
+  external MediaCapabilitiesKeySystemConfiguration get keySystemConfiguration;
   external set keySystemConfiguration(
       MediaCapabilitiesKeySystemConfiguration value);
-  external MediaCapabilitiesKeySystemConfiguration get keySystemConfiguration;
 }
 extension type MediaEncodingConfiguration._(JSObject _)
     implements MediaConfiguration, JSObject {
@@ -54,8 +54,8 @@ extension type MediaEncodingConfiguration._(JSObject _)
     required MediaEncodingType type,
   });
 
-  external set type(MediaEncodingType value);
   external MediaEncodingType get type;
+  external set type(MediaEncodingType value);
 }
 extension type VideoConfiguration._(JSObject _) implements JSObject {
   external factory VideoConfiguration({
@@ -72,28 +72,28 @@ extension type VideoConfiguration._(JSObject _) implements JSObject {
     bool spatialScalability,
   });
 
-  external set contentType(String value);
   external String get contentType;
-  external set width(int value);
+  external set contentType(String value);
   external int get width;
-  external set height(int value);
+  external set width(int value);
   external int get height;
-  external set bitrate(int value);
+  external set height(int value);
   external int get bitrate;
-  external set framerate(num value);
+  external set bitrate(int value);
   external num get framerate;
-  external set hasAlphaChannel(bool value);
+  external set framerate(num value);
   external bool get hasAlphaChannel;
-  external set hdrMetadataType(HdrMetadataType value);
+  external set hasAlphaChannel(bool value);
   external HdrMetadataType get hdrMetadataType;
-  external set colorGamut(ColorGamut value);
+  external set hdrMetadataType(HdrMetadataType value);
   external ColorGamut get colorGamut;
-  external set transferFunction(TransferFunction value);
+  external set colorGamut(ColorGamut value);
   external TransferFunction get transferFunction;
-  external set scalabilityMode(String value);
+  external set transferFunction(TransferFunction value);
   external String get scalabilityMode;
-  external set spatialScalability(bool value);
+  external set scalabilityMode(String value);
   external bool get spatialScalability;
+  external set spatialScalability(bool value);
 }
 extension type AudioConfiguration._(JSObject _) implements JSObject {
   external factory AudioConfiguration({
@@ -104,16 +104,16 @@ extension type AudioConfiguration._(JSObject _) implements JSObject {
     bool spatialRendering,
   });
 
-  external set contentType(String value);
   external String get contentType;
-  external set channels(String value);
+  external set contentType(String value);
   external String get channels;
-  external set bitrate(int value);
+  external set channels(String value);
   external int get bitrate;
-  external set samplerate(int value);
+  external set bitrate(int value);
   external int get samplerate;
-  external set spatialRendering(bool value);
+  external set samplerate(int value);
   external bool get spatialRendering;
+  external set spatialRendering(bool value);
 }
 extension type MediaCapabilitiesKeySystemConfiguration._(JSObject _)
     implements JSObject {
@@ -127,20 +127,20 @@ extension type MediaCapabilitiesKeySystemConfiguration._(JSObject _)
     KeySystemTrackConfiguration video,
   });
 
-  external set keySystem(String value);
   external String get keySystem;
-  external set initDataType(String value);
+  external set keySystem(String value);
   external String get initDataType;
-  external set distinctiveIdentifier(MediaKeysRequirement value);
+  external set initDataType(String value);
   external MediaKeysRequirement get distinctiveIdentifier;
-  external set persistentState(MediaKeysRequirement value);
+  external set distinctiveIdentifier(MediaKeysRequirement value);
   external MediaKeysRequirement get persistentState;
-  external set sessionTypes(JSArray<JSString> value);
+  external set persistentState(MediaKeysRequirement value);
   external JSArray<JSString> get sessionTypes;
-  external set audio(KeySystemTrackConfiguration value);
+  external set sessionTypes(JSArray<JSString> value);
   external KeySystemTrackConfiguration get audio;
-  external set video(KeySystemTrackConfiguration value);
+  external set audio(KeySystemTrackConfiguration value);
   external KeySystemTrackConfiguration get video;
+  external set video(KeySystemTrackConfiguration value);
 }
 extension type KeySystemTrackConfiguration._(JSObject _) implements JSObject {
   external factory KeySystemTrackConfiguration({
@@ -148,10 +148,10 @@ extension type KeySystemTrackConfiguration._(JSObject _) implements JSObject {
     String? encryptionScheme,
   });
 
-  external set robustness(String value);
   external String get robustness;
-  external set encryptionScheme(String? value);
+  external set robustness(String value);
   external String? get encryptionScheme;
+  external set encryptionScheme(String? value);
 }
 extension type MediaCapabilitiesInfo._(JSObject _) implements JSObject {
   external factory MediaCapabilitiesInfo({
@@ -160,12 +160,12 @@ extension type MediaCapabilitiesInfo._(JSObject _) implements JSObject {
     required bool powerEfficient,
   });
 
-  external set supported(bool value);
   external bool get supported;
-  external set smooth(bool value);
+  external set supported(bool value);
   external bool get smooth;
-  external set powerEfficient(bool value);
+  external set smooth(bool value);
   external bool get powerEfficient;
+  external set powerEfficient(bool value);
 }
 extension type MediaCapabilitiesDecodingInfo._(JSObject _)
     implements MediaCapabilitiesInfo, JSObject {
@@ -177,10 +177,10 @@ extension type MediaCapabilitiesDecodingInfo._(JSObject _)
     MediaDecodingConfiguration configuration,
   });
 
-  external set keySystemAccess(MediaKeySystemAccess value);
   external MediaKeySystemAccess get keySystemAccess;
-  external set configuration(MediaDecodingConfiguration value);
+  external set keySystemAccess(MediaKeySystemAccess value);
   external MediaDecodingConfiguration get configuration;
+  external set configuration(MediaDecodingConfiguration value);
 }
 extension type MediaCapabilitiesEncodingInfo._(JSObject _)
     implements MediaCapabilitiesInfo, JSObject {
@@ -191,8 +191,8 @@ extension type MediaCapabilitiesEncodingInfo._(JSObject _)
     MediaEncodingConfiguration configuration,
   });
 
-  external set configuration(MediaEncodingConfiguration value);
   external MediaEncodingConfiguration get configuration;
+  external set configuration(MediaEncodingConfiguration value);
 }
 
 /// The **`MediaCapabilities`** interface of the
diff --git a/lib/src/dom/media_playback_quality.dart b/lib/src/dom/media_playback_quality.dart
index 00145744..3bd8c8a7 100644
--- a/lib/src/dom/media_playback_quality.dart
+++ b/lib/src/dom/media_playback_quality.dart
@@ -24,8 +24,28 @@ import 'hr_time.dart';
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/VideoPlaybackQuality).
 extension type VideoPlaybackQuality._(JSObject _) implements JSObject {
+  /// The read-only **`creationTime`** property on the
+  /// [VideoPlaybackQuality] interface reports the number of milliseconds since
+  /// the browsing context was created this quality sample was recorded.
   external DOMHighResTimeStamp get creationTime;
+
+  /// The read-only **`droppedVideoFrames`**
+  /// property of the [VideoPlaybackQuality] interface returns the number of
+  /// video frames which have been dropped rather than being displayed since the
+  /// last time
+  /// the media was loaded into the [HTMLVideoElement].
   external int get droppedVideoFrames;
+
+  /// The [VideoPlaybackQuality] interface's
+  /// **`totalVideoFrames`** read-only property returns the total
+  /// number of video frames that have been displayed or dropped since the media
+  /// was
+  /// loaded.
   external int get totalVideoFrames;
+
+  /// The [VideoPlaybackQuality] interface's read-only
+  /// **`corruptedVideoFrames`** property the number of corrupted
+  /// video frames that have been received since the `video` element was
+  /// last loaded or reloaded.
   external int get corruptedVideoFrames;
 }
diff --git a/lib/src/dom/media_source.dart b/lib/src/dom/media_source.dart
index c2b7ebd1..ed7bc40b 100644
--- a/lib/src/dom/media_source.dart
+++ b/lib/src/dom/media_source.dart
@@ -64,18 +64,59 @@ extension type MediaSource._(JSObject _) implements EventTarget, JSObject {
   /// [MediaSource] interface clears a seekable range previously set with a call
   /// to [MediaSource.setLiveSeekableRange].
   external void clearLiveSeekableRange();
+
+  /// The **`handle`** read-only property of the [MediaSource] interface returns
+  /// a [MediaSourceHandle] object, a proxy for the `MediaSource` that can be
+  /// transferred from a dedicated worker back to the main thread and attached
+  /// to a media element via its [HTMLMediaElement.srcObject] property.
+  ///
+  /// > **Note:** `handle` is only visible on [MediaSource] instances inside
+  /// > dedicated workers.
+  ///
+  /// Each `MediaSource` object created inside a dedicated worker has its own
+  /// distinct `MediaSourceHandle`. The `handle` getter will always return the
+  /// `MediaSourceHandle` instance specific to the associated dedicated worker
+  /// `MediaSource` instance. If the handle has already been transferred to the
+  /// main thread using [DedicatedWorkerGlobalScope.postMessage], the handle
+  /// instance in the worker is technically detached and can't be transferred
+  /// again.
   external MediaSourceHandle get handle;
+
+  /// The **`sourceBuffers`** read-only property of the
+  /// [MediaSource] interface returns a [SourceBufferList] object
+  /// containing the list of [SourceBuffer] objects associated with this
+  /// `MediaSource`.
   external SourceBufferList get sourceBuffers;
+
+  /// The **`activeSourceBuffers`** read-only property of the
+  /// [MediaSource] interface returns a [SourceBufferList] object
+  /// containing a subset of the [SourceBuffer] objects contained within
+  /// [MediaSource.sourceBuffers] — the list of objects
+  /// providing the selected video track, enabled audio tracks, and shown/hidden
+  /// text tracks.
   external SourceBufferList get activeSourceBuffers;
+
+  /// The **`readyState`** read-only property of the
+  /// [MediaSource] interface returns an enum representing the state of the
+  /// current `MediaSource`. The three possible values are:
+  ///
+  /// - `closed`: The source is not currently attached to a media element.
+  /// - `open`: The source is attached to a media element and ready to receive
+  /// [SourceBuffer] objects.
+  /// - `ended`: The source is attached to a media element but the stream has
+  /// been ended via a call to [MediaSource.endOfStream].
   external ReadyState get readyState;
-  external set duration(num value);
+
+  /// The **`duration`** property of the [MediaSource]
+  /// interface gets and sets the duration of the current media being presented.
   external num get duration;
-  external set onsourceopen(EventHandler value);
+  external set duration(num value);
   external EventHandler get onsourceopen;
-  external set onsourceended(EventHandler value);
+  external set onsourceopen(EventHandler value);
   external EventHandler get onsourceended;
-  external set onsourceclose(EventHandler value);
+  external set onsourceended(EventHandler value);
   external EventHandler get onsourceclose;
+  external set onsourceclose(EventHandler value);
 }
 
 /// The **`MediaSourceHandle`** interface of the [Media Source Extensions API]
@@ -144,29 +185,113 @@ extension type SourceBuffer._(JSObject _) implements EventTarget, JSObject {
     num start,
     num end,
   );
-  external set mode(AppendMode value);
+
+  /// The **`mode`** property of the [SourceBuffer]
+  /// interface controls whether media segments can be appended to the
+  /// `SourceBuffer` in any order, or in a strict sequence.
+  ///
+  /// The two available values are:
+  ///
+  /// - `segments`: The media segment timestamps determine the order in which
+  ///   the
+  /// segments are played. The segments can be appended to the `SourceBuffer` in
+  /// any order.
+  /// - `sequence`: The order in which the segments are appended to the
+  /// `SourceBuffer` determines the order in which they are played. Segment
+  /// timestamps are generated automatically for the segments that observe this
+  /// order.
+  ///
+  /// The mode value is initially set when the `SourceBuffer` is created using
+  /// `MediaSource.addSourceBuffer()`. If timestamps already exist for the media
+  /// segments, then the value will be set to `segments`; if they don't, then
+  /// the
+  /// value will be set to `sequence`.
+  ///
+  /// If you try to set the `mode` property value to `segments` when
+  /// the initial value is `sequence`, an exception will be thrown. The existing
+  /// segment order must be maintained in `sequence` mode. You can, however,
+  /// change
+  /// the value from `segments` to `sequence`. It just means the play
+  /// order will be fixed, and new timestamps generated to reflect this.
+  ///
+  /// This property cannot be changed during while the `SourceBuffer` is
+  /// processing either an [SourceBuffer.appendBuffer] or
+  /// [SourceBuffer.remove] call.
   external AppendMode get mode;
+  external set mode(AppendMode value);
+
+  /// The **`updating`** read-only property of the
+  /// [SourceBuffer] interface indicates whether the `SourceBuffer` is
+  /// currently being updated — i.e. whether an [SourceBuffer.appendBuffer] or
+  /// [SourceBuffer.remove]
+  /// operation is currently in progress.
   external bool get updating;
+
+  /// The **`buffered`** read-only property of the
+  /// [SourceBuffer] interface returns the time ranges that are currently
+  /// buffered in the `SourceBuffer` as a normalized [TimeRanges]
+  /// object.
   external TimeRanges get buffered;
-  external set timestampOffset(num value);
+
+  /// The **`timestampOffset`** property of the
+  /// [SourceBuffer] interface controls the offset applied to timestamps inside
+  /// media segments that are appended to the `SourceBuffer`.
+  ///
+  /// The initial value of `timestampOffset` is 0.
   external num get timestampOffset;
+  external set timestampOffset(num value);
+
+  /// The **`audioTracks`** read-only property of the
+  /// [SourceBuffer] interface returns a list of the audio tracks currently
+  /// contained inside the `SourceBuffer`.
   external AudioTrackList get audioTracks;
+
+  /// The **`videoTracks`** read-only property of the
+  /// [SourceBuffer] interface returns a list of the video tracks currently
+  /// contained inside the `SourceBuffer`.
   external VideoTrackList get videoTracks;
+
+  /// The **`textTracks`** read-only property of the
+  /// [SourceBuffer] interface returns a list of the text tracks currently
+  /// contained inside the `SourceBuffer`.
   external TextTrackList get textTracks;
-  external set appendWindowStart(num value);
+
+  /// The **`appendWindowStart`** property of the
+  /// [SourceBuffer] interface controls the timestamp for the start of the
+  /// [append window](https://w3c.github.io/media-source/#append-window), a
+  /// timestamp range that can be used to filter what media data is appended to
+  /// the
+  /// `SourceBuffer`. Coded media frames with timestamps within this range will
+  /// be
+  /// appended, whereas those outside the range will be filtered out.
+  ///
+  /// The default value of `appendWindowStart` is the presentation start time,
+  /// which is the beginning time of the playable media.
   external num get appendWindowStart;
-  external set appendWindowEnd(num value);
+  external set appendWindowStart(num value);
+
+  /// The **`appendWindowEnd`** property of the
+  /// [SourceBuffer] interface controls the timestamp for the end of the
+  /// [append window](https://w3c.github.io/media-source/#append-window), a
+  /// timestamp range that can be used to filter what media data is appended to
+  /// the
+  /// `SourceBuffer`. Coded media frames with timestamps within this range will
+  /// be
+  /// appended, whereas those outside the range will be filtered out.
+  ///
+  /// The default value of `appendWindowEnd` is positive infinity.
   external num get appendWindowEnd;
-  external set onupdatestart(EventHandler value);
+  external set appendWindowEnd(num value);
   external EventHandler get onupdatestart;
-  external set onupdate(EventHandler value);
+  external set onupdatestart(EventHandler value);
   external EventHandler get onupdate;
-  external set onupdateend(EventHandler value);
+  external set onupdate(EventHandler value);
   external EventHandler get onupdateend;
-  external set onerror(EventHandler value);
+  external set onupdateend(EventHandler value);
   external EventHandler get onerror;
-  external set onabort(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onabort;
+  external set onabort(EventHandler value);
 }
 
 /// The **`SourceBufferList`** interface represents a simple container list for
@@ -185,21 +310,24 @@ extension type SourceBuffer._(JSObject _) implements EventTarget, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SourceBufferList).
 extension type SourceBufferList._(JSObject _) implements EventTarget, JSObject {
+  /// The **`length`** read-only property of the
+  /// [SourceBufferList] interface returns the number of
+  /// [SourceBuffer] objects in the list.
   external int get length;
-  external set onaddsourcebuffer(EventHandler value);
   external EventHandler get onaddsourcebuffer;
-  external set onremovesourcebuffer(EventHandler value);
+  external set onaddsourcebuffer(EventHandler value);
   external EventHandler get onremovesourcebuffer;
+  external set onremovesourcebuffer(EventHandler value);
 }
 extension type ManagedMediaSource._(JSObject _)
     implements MediaSource, JSObject {
   external factory ManagedMediaSource();
 
   external bool get streaming;
-  external set onstartstreaming(EventHandler value);
   external EventHandler get onstartstreaming;
-  external set onendstreaming(EventHandler value);
+  external set onstartstreaming(EventHandler value);
   external EventHandler get onendstreaming;
+  external set onendstreaming(EventHandler value);
 }
 extension type BufferedChangeEvent._(JSObject _) implements Event, JSObject {
   external factory BufferedChangeEvent(
@@ -220,13 +348,13 @@ extension type BufferedChangeEventInit._(JSObject _)
     TimeRanges removedRanges,
   });
 
-  external set addedRanges(TimeRanges value);
   external TimeRanges get addedRanges;
-  external set removedRanges(TimeRanges value);
+  external set addedRanges(TimeRanges value);
   external TimeRanges get removedRanges;
+  external set removedRanges(TimeRanges value);
 }
 extension type ManagedSourceBuffer._(JSObject _)
     implements SourceBuffer, JSObject {
-  external set onbufferedchange(EventHandler value);
   external EventHandler get onbufferedchange;
+  external set onbufferedchange(EventHandler value);
 }
diff --git a/lib/src/dom/mediacapture_streams.dart b/lib/src/dom/mediacapture_streams.dart
index cfe74a96..4fad4972 100644
--- a/lib/src/dom/mediacapture_streams.dart
+++ b/lib/src/dom/mediacapture_streams.dart
@@ -94,12 +94,26 @@ extension type MediaStream._(JSObject _) implements EventTarget, JSObject {
   /// contains clones of every [MediaStreamTrack] contained by the
   /// `MediaStream` on which `clone()` was called.
   external MediaStream clone();
+
+  /// The **`id`** read-only property of the [MediaStream] interface is a
+  /// string containing 36 characters denoting a unique identifier (GUID)
+  /// for the object.
   external String get id;
+
+  /// The **`active`** read-only property of the
+  /// [MediaStream] interface returns a Boolean value which is
+  /// `true` if the stream is currently active; otherwise, it returns
+  /// `false`. A stream is considered **active** if at least one of
+  /// its [MediaStreamTrack]s does not have its property
+  /// [MediaStreamTrack.readyState]
+  /// set to `ended`. Once every track has ended, the stream's `active` property
+  /// becomes
+  /// `false`.
   external bool get active;
-  external set onaddtrack(EventHandler value);
   external EventHandler get onaddtrack;
-  external set onremovetrack(EventHandler value);
+  external set onaddtrack(EventHandler value);
   external EventHandler get onremovetrack;
+  external set onremovetrack(EventHandler value);
 }
 
 /// The **`MediaStreamTrack`** interface of the [Media Capture and Streams API]
@@ -190,19 +204,78 @@ extension type MediaStreamTrack._(JSObject _) implements EventTarget, JSObject {
   /// for more information on how to apply your preferred constraints.
   external JSPromise<JSAny?> applyConstraints(
       [MediaTrackConstraints constraints]);
+
+  /// The **`kind`** read-only property of the [MediaStreamTrack] interface
+  /// returns a string set to `"audio"` if the track is an audio track and to
+  /// `"video"` if it is a video track.
+  /// It doesn't change if the track is disassociated from its source.
   external String get kind;
+
+  /// The **`id`** read-only property of the [MediaStreamTrack] interface
+  /// returns a
+  /// string containing a unique identifier (GUID) for the track, which is
+  /// generated by the .
   external String get id;
+
+  /// The **`label`** read-only property of the [MediaStreamTrack] interface
+  /// returns a string containing a -assigned label that identifies the track
+  /// source, as in `"internal microphone"`.
+  ///
+  /// The string may be left empty and is empty as long as no source has been
+  /// connected.
+  /// When the track is disassociated from its source, the label is not changed.
   external String get label;
-  external set enabled(bool value);
+
+  /// The **`enabled`** property of the
+  /// [MediaStreamTrack] interface is a Boolean value which is
+  /// `true` if the track is allowed to render the source stream or
+  /// `false` if it is not. This can be used to intentionally mute a
+  /// track.
+  ///
+  /// When enabled, a track's data is output from the source to the
+  /// destination; otherwise, empty frames are output.
+  ///
+  /// In the case of audio, a disabled track generates frames of silence (that
+  /// is, frames in
+  /// which every sample's value is 0). For video tracks, every frame is filled
+  /// entirely with
+  /// black pixels.
+  ///
+  /// The value of `enabled`, in essence, represents what a typical user would
+  /// consider the muting state for a track, whereas the
+  /// [MediaStreamTrack.muted]
+  /// property indicates a state in which the track is temporarily unable to
+  /// output
+  /// data, such as a scenario in which frames have been lost in transit.
+  ///
+  /// > **Note:** If the track has been disconnected, the value of this property
+  /// > can be changed, but has no effect.
   external bool get enabled;
+  external set enabled(bool value);
+
+  /// The **`muted`** read-only property of the
+  /// [MediaStreamTrack] interface returns a boolean value
+  /// indicating whether or not the track is currently unable to provide media
+  /// output.
+  ///
+  /// > **Note:** To implement a way for users to mute and unmute a track, use
+  /// > the
+  /// > [MediaStreamTrack.enabled] property. When a track is disabled
+  /// > by setting `enabled` to `false`, it generates only empty frames
+  /// > (audio frames in which every sample is 0, or video frames in which every
+  /// > pixel is
+  /// > black).
   external bool get muted;
-  external set onmute(EventHandler value);
   external EventHandler get onmute;
-  external set onunmute(EventHandler value);
+  external set onmute(EventHandler value);
   external EventHandler get onunmute;
+  external set onunmute(EventHandler value);
+
+  /// The **`readyState`** read-only property of the [MediaStreamTrack]
+  /// interface returns an enumerated value giving the status of the track.
   external MediaStreamTrackState get readyState;
-  external set onended(EventHandler value);
   external EventHandler get onended;
+  external set onended(EventHandler value);
 }
 
 /// The **`MediaTrackSupportedConstraints`** dictionary establishes the list of
@@ -250,36 +323,215 @@ extension type MediaTrackSupportedConstraints._(JSObject _)
     bool groupId,
   });
 
-  external set width(bool value);
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`width`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `width` constraint. If the constraint
+  /// isn't supported, it's not included in the list, so this value will never
+  /// be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get width;
-  external set height(bool value);
+  external set width(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`height`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `height` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get height;
-  external set aspectRatio(bool value);
+  external set height(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's **`aspectRatio`**
+  /// property is a read-only Boolean value which is present (and set to `true`)
+  /// in the object returned by [MediaDevices.getSupportedConstraints] if and
+  /// only if the
+  /// supports the `aspectRatio` constraint.
+  /// If the constraint isn't supported, it's not included in the list, so this
+  /// value will never be `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get aspectRatio;
-  external set frameRate(bool value);
+  external set aspectRatio(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's **`frameRate`** property
+  /// is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the  supports the
+  /// [MediaTrackConstraints.frameRate] constraint.
+  ///
+  /// If the constraint isn't supported, it's not included in the list, so this
+  /// value will never be `false`.
+  ///
+  /// The `frameRate` constraint can be used to establish acceptable upper and
+  /// lower bounds on the video frame rate for a new video track, or to specify
+  /// an exact frame rate that must be provided for the request to succeed.
+  /// Checking the value of this property lets you determine if the user agent
+  /// allows constraining the video track configuration by frame rate. See the
+  /// [example](#examples) to see how this can be used.
   external bool get frameRate;
-  external set facingMode(bool value);
+  external set frameRate(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`facingMode`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `facingMode` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get facingMode;
-  external set resizeMode(bool value);
+  external set facingMode(bool value);
   external bool get resizeMode;
-  external set sampleRate(bool value);
+  external set resizeMode(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`sampleRate`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `sampleRate` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get sampleRate;
-  external set sampleSize(bool value);
+  external set sampleRate(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`sampleSize`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `sampleSize` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get sampleSize;
-  external set echoCancellation(bool value);
+  external set sampleSize(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`echoCancellation`** property is a read-only Boolean value
+  /// which is present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `echoCancellation` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get echoCancellation;
-  external set autoGainControl(bool value);
+  external set echoCancellation(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's **`autoGainControl`**
+  /// property is a read-only Boolean value which is present (and set to `true`)
+  /// in the object returned by [MediaDevices.getSupportedConstraints] if and
+  /// only if the  supports the **`autoGainControl`** constraint.
+  /// If the constraint isn't supported, it's not included in the list, so this
+  /// value will never be `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
+  ///
+  /// The `autoGainControl` constraint indicates whether or not the browser
+  /// offers the ability to automatically control the gain (volume) on media
+  /// tracks; this obviously is contingent on whether or not the individual
+  /// device supports automatic gain control as well; it's typically a feature
+  /// provided by microphones.
   external bool get autoGainControl;
-  external set noiseSuppression(bool value);
+  external set autoGainControl(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`noiseSuppression`** property is a read-only Boolean value
+  /// which is present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the **`noiseSuppression`**
+  /// constraint. If the constraint isn't supported, it's not included in the
+  /// list, so this
+  /// value will never be `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
+  ///
+  /// The `noiseSuppression` constraint indicates whether or not the browser
+  /// offers the ability to automatically control the gain (volume) on media
+  /// tracks; this
+  /// obviously is contingent on whether or not the individual device supports
+  /// automatic gain
+  /// control as well.
   external bool get noiseSuppression;
-  external set latency(bool value);
+  external set noiseSuppression(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's **`latency`** property
+  /// is a read-only Boolean value which is present (and set to `true`) in the
+  /// object returned by [MediaDevices.getSupportedConstraints] if and only if
+  /// the  supports the `latency` constraint.
+  /// If the constraint isn't supported, it's not included in the list, so this
+  /// value will never be `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get latency;
-  external set channelCount(bool value);
+  external set latency(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`channelCount`** property is a read-only Boolean value which
+  /// is present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `channelCount` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get channelCount;
-  external set deviceId(bool value);
+  external set channelCount(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`deviceId`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `deviceId` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get deviceId;
-  external set groupId(bool value);
+  external set deviceId(bool value);
+
+  /// The [MediaTrackSupportedConstraints] dictionary's
+  /// **`groupId`** property is a read-only Boolean value which is
+  /// present (and set to `true`) in the object returned by
+  /// [MediaDevices.getSupportedConstraints] if and only if the
+  /// supports the `groupId` constraint. If the
+  /// constraint isn't supported, it's not included in the list, so this value
+  /// will never be
+  /// `false`.
+  ///
+  /// You can access the supported constraints dictionary by calling
+  /// `navigator.mediaDevices.getSupportedConstraints()`.
   external bool get groupId;
+  external set groupId(bool value);
 }
 extension type MediaTrackCapabilities._(JSObject _) implements JSObject {
   external factory MediaTrackCapabilities({
@@ -300,36 +552,36 @@ extension type MediaTrackCapabilities._(JSObject _) implements JSObject {
     String groupId,
   });
 
-  external set width(ULongRange value);
   external ULongRange get width;
-  external set height(ULongRange value);
+  external set width(ULongRange value);
   external ULongRange get height;
-  external set aspectRatio(DoubleRange value);
+  external set height(ULongRange value);
   external DoubleRange get aspectRatio;
-  external set frameRate(DoubleRange value);
+  external set aspectRatio(DoubleRange value);
   external DoubleRange get frameRate;
-  external set facingMode(JSArray<JSString> value);
+  external set frameRate(DoubleRange value);
   external JSArray<JSString> get facingMode;
-  external set resizeMode(JSArray<JSString> value);
+  external set facingMode(JSArray<JSString> value);
   external JSArray<JSString> get resizeMode;
-  external set sampleRate(ULongRange value);
+  external set resizeMode(JSArray<JSString> value);
   external ULongRange get sampleRate;
-  external set sampleSize(ULongRange value);
+  external set sampleRate(ULongRange value);
   external ULongRange get sampleSize;
-  external set echoCancellation(JSArray<JSBoolean> value);
+  external set sampleSize(ULongRange value);
   external JSArray<JSBoolean> get echoCancellation;
-  external set autoGainControl(JSArray<JSBoolean> value);
+  external set echoCancellation(JSArray<JSBoolean> value);
   external JSArray<JSBoolean> get autoGainControl;
-  external set noiseSuppression(JSArray<JSBoolean> value);
+  external set autoGainControl(JSArray<JSBoolean> value);
   external JSArray<JSBoolean> get noiseSuppression;
-  external set latency(DoubleRange value);
+  external set noiseSuppression(JSArray<JSBoolean> value);
   external DoubleRange get latency;
-  external set channelCount(ULongRange value);
+  external set latency(DoubleRange value);
   external ULongRange get channelCount;
-  external set deviceId(String value);
+  external set channelCount(ULongRange value);
   external String get deviceId;
-  external set groupId(String value);
+  external set deviceId(String value);
   external String get groupId;
+  external set groupId(String value);
 }
 
 /// The **`MediaTrackConstraints`** dictionary is used to describe a set of
@@ -365,8 +617,8 @@ extension type MediaTrackConstraints._(JSObject _)
     JSArray<MediaTrackConstraintSet> advanced,
   });
 
-  external set advanced(JSArray<MediaTrackConstraintSet> value);
   external JSArray<MediaTrackConstraintSet> get advanced;
+  external set advanced(JSArray<MediaTrackConstraintSet> value);
 }
 extension type MediaTrackConstraintSet._(JSObject _) implements JSObject {
   external factory MediaTrackConstraintSet({
@@ -387,36 +639,36 @@ extension type MediaTrackConstraintSet._(JSObject _) implements JSObject {
     ConstrainDOMString groupId,
   });
 
-  external set width(ConstrainULong value);
   external ConstrainULong get width;
-  external set height(ConstrainULong value);
+  external set width(ConstrainULong value);
   external ConstrainULong get height;
-  external set aspectRatio(ConstrainDouble value);
+  external set height(ConstrainULong value);
   external ConstrainDouble get aspectRatio;
-  external set frameRate(ConstrainDouble value);
+  external set aspectRatio(ConstrainDouble value);
   external ConstrainDouble get frameRate;
-  external set facingMode(ConstrainDOMString value);
+  external set frameRate(ConstrainDouble value);
   external ConstrainDOMString get facingMode;
-  external set resizeMode(ConstrainDOMString value);
+  external set facingMode(ConstrainDOMString value);
   external ConstrainDOMString get resizeMode;
-  external set sampleRate(ConstrainULong value);
+  external set resizeMode(ConstrainDOMString value);
   external ConstrainULong get sampleRate;
-  external set sampleSize(ConstrainULong value);
+  external set sampleRate(ConstrainULong value);
   external ConstrainULong get sampleSize;
-  external set echoCancellation(ConstrainBoolean value);
+  external set sampleSize(ConstrainULong value);
   external ConstrainBoolean get echoCancellation;
-  external set autoGainControl(ConstrainBoolean value);
+  external set echoCancellation(ConstrainBoolean value);
   external ConstrainBoolean get autoGainControl;
-  external set noiseSuppression(ConstrainBoolean value);
+  external set autoGainControl(ConstrainBoolean value);
   external ConstrainBoolean get noiseSuppression;
-  external set latency(ConstrainDouble value);
+  external set noiseSuppression(ConstrainBoolean value);
   external ConstrainDouble get latency;
-  external set channelCount(ConstrainULong value);
+  external set latency(ConstrainDouble value);
   external ConstrainULong get channelCount;
-  external set deviceId(ConstrainDOMString value);
+  external set channelCount(ConstrainULong value);
   external ConstrainDOMString get deviceId;
-  external set groupId(ConstrainDOMString value);
+  external set deviceId(ConstrainDOMString value);
   external ConstrainDOMString get groupId;
+  external set groupId(ConstrainDOMString value);
 }
 
 /// The **`MediaTrackSettings`** dictionary is used to return the current values
@@ -454,36 +706,336 @@ extension type MediaTrackSettings._(JSObject _) implements JSObject {
     String groupId,
   });
 
-  external set width(int value);
+  /// The [MediaTrackSettings] dictionary's **`width`**
+  /// property is an integer indicating the number of pixels wide
+  /// [MediaStreamTrack] is currently configured to be. This lets you determine
+  /// what value was selected to comply with your specified constraints for this
+  /// property's
+  /// value as described in the [MediaTrackConstraints.width] property you
+  /// provided when calling either [MediaDevices.getUserMedia]
+  /// or [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.width] as returned by a call
+  /// to [MediaDevices.getSupportedConstraints]. However, typically this is
+  /// unnecessary since browsers will ignore any constraints they're unfamiliar
+  /// with.
   external int get width;
-  external set height(int value);
+  external set width(int value);
+
+  /// The [MediaTrackSettings] dictionary's **`height`**
+  /// property is an integer indicating the number of pixels tall
+  /// [MediaStreamTrack] is currently configured to be. This lets you determine
+  /// what value was selected to comply with your specified constraints for this
+  /// property's
+  /// value as described in the [MediaTrackConstraints.height] property you
+  /// provided when calling either [MediaDevices.getUserMedia]
+  /// or [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.height] as returned by a call
+  /// to [MediaDevices.getSupportedConstraints]. However, typically this is
+  /// unnecessary since browsers will ignore any constraints they're unfamiliar
+  /// with.
   external int get height;
-  external set aspectRatio(num value);
+  external set height(int value);
+
+  /// The [MediaTrackSettings] dictionary's **`aspectRatio`** property is a
+  /// double-precision floating-point number indicating the aspect ratio of the
+  /// [MediaStreamTrack] as currently configured.
+  /// This lets you determine what value was selected to comply with your
+  /// specified constraints for this property's value as described in the
+  /// [MediaTrackConstraints.aspectRatio] property you provided when calling
+  /// either [MediaDevices.getUserMedia] or [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.aspectRatio] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external num get aspectRatio;
-  external set frameRate(num value);
+  external set aspectRatio(num value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`frameRate`** property is a double-precision floating-point
+  /// number indicating the frame rate, in frames per second, of the
+  /// [MediaStreamTrack] as currently configured. This lets you determine what
+  /// value was selected to comply with your specified constraints for this
+  /// property's value
+  /// as described in the [MediaTrackConstraints.frameRate] property you
+  /// provided
+  /// when calling either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.frameRate] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external num get frameRate;
-  external set facingMode(String value);
+  external set frameRate(num value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`facingMode`** property is a string
+  /// indicating the direction in which the camera producing the video track
+  /// represented by
+  /// the [MediaStreamTrack] is currently facing. This lets you determine what
+  /// value was selected to comply with your specified constraints for this
+  /// property's value
+  /// as described in the [MediaTrackConstraints.facingMode] property you
+  /// provided when calling either [MediaDevices.getUserMedia]
+  /// or [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.facingMode] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
+  ///
+  /// Because  doesn't include this information, tracks associated with a
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// [RTCPeerConnection]
+  /// will never include this property.
   external String get facingMode;
-  external set resizeMode(String value);
+  external set facingMode(String value);
   external String get resizeMode;
-  external set sampleRate(int value);
+  external set resizeMode(String value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`sampleRate`** property is an integer indicating how many
+  /// audio samples per second the [MediaStreamTrack] is currently configured
+  /// for. This lets you determine what value was selected to comply with your
+  /// specified
+  /// constraints for this property's value as described in the
+  /// [MediaTrackConstraints.sampleRate] property you provided when calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.sampleRate] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external int get sampleRate;
-  external set sampleSize(int value);
+  external set sampleRate(int value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`sampleSize`** property is an integer indicating the linear
+  /// sample size (in bits per sample) the [MediaStreamTrack] is currently
+  /// configured for. This lets you determine what value was selected to comply
+  /// with your
+  /// specified constraints for this property's value as described in the
+  /// [MediaTrackConstraints.sampleSize] property you provided when calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.sampleSize] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external int get sampleSize;
-  external set echoCancellation(bool value);
+  external set sampleSize(int value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`echoCancellation`** property is a Boolean value whose value
+  /// indicates whether or not echo cancellation is enabled on an audio track.
+  /// This lets you
+  /// determine what value was selected to comply with your specified
+  /// constraints for this
+  /// property's value as described in the
+  /// [MediaTrackConstraints.echoCancellation] property you provided when
+  /// calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// Echo cancellation is a feature which attempts to prevent echo effects on a
+  /// two-way
+  /// audio connection by attempting to reduce or eliminate crosstalk between
+  /// the user's
+  /// output device and their input device. For example, it might apply a filter
+  /// that negates
+  /// the sound being produced on the speakers from being included in the input
+  /// track
+  /// generated from the microphone.
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.echoCancellation] as returned
+  /// by a call to [MediaDevices.getSupportedConstraints]. However, typically
+  /// this is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
+  ///
+  /// Because  doesn't include this information, tracks associated with a
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// [RTCPeerConnection]
+  /// will never include this property.
   external bool get echoCancellation;
-  external set autoGainControl(bool value);
+  external set echoCancellation(bool value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`autoGainControl`** property is a Boolean value whose value
+  /// indicates whether or not automatic gain control (AGC) is enabled on an
+  /// audio track. This
+  /// lets you determine what value was selected to comply with your specified
+  /// constraints for
+  /// this property's value as described in the
+  /// [MediaTrackConstraints.autoGainControl] property you provided when calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// Automatic gain control is a feature in which a sound source automatically
+  /// manages
+  /// changes in the volume of its source media to maintain a steady overall
+  /// volume level.
+  /// This feature is typically used on microphones, although it can be provided
+  /// by other
+  /// input sources as well.
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.autoGainControl] as returned
+  /// by a call to [MediaDevices.getSupportedConstraints]. However, typically
+  /// this is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external bool get autoGainControl;
-  external set noiseSuppression(bool value);
+  external set autoGainControl(bool value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`noiseSuppression`** property is a Boolean value whose value
+  /// indicates whether or not noise suppression technology is enabled on an
+  /// audio track. This
+  /// lets you determine what value was selected to comply with your specified
+  /// constraints for
+  /// this property's value as described in the
+  /// [MediaTrackConstraints.noiseSuppression] property you provided when
+  /// calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// Noise suppression automatically filters the audio to remove background
+  /// noise, hum
+  /// caused by equipment, and the like from the sound before delivering it to
+  /// your code. This
+  /// feature is typically used on microphones, although it is technically
+  /// possible it could
+  /// be provided by other input sources as well.
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.noiseSuppression] as returned
+  /// by a call to [MediaDevices.getSupportedConstraints]. However, typically
+  /// this is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external bool get noiseSuppression;
-  external set latency(num value);
+  external set noiseSuppression(bool value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`latency`** property is a double-precision floating-point
+  /// number indicating the estimated latency (specified in seconds) of the
+  /// [MediaStreamTrack] as currently configured. This lets you determine what
+  /// value was selected to comply with your specified constraints for this
+  /// property's value
+  /// as described in the [MediaTrackConstraints.latency] property you provided
+  /// when calling either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// This is, of course, an approximation, since latency can vary for many
+  /// reasons including
+  /// CPU, transmission, and storage overhead.
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.latency] as returned by a
+  /// call
+  /// to [MediaDevices.getSupportedConstraints]. However, typically this is
+  /// unnecessary since browsers will ignore any constraints they're unfamiliar
+  /// with.
+  ///
+  /// Because  doesn't include this information, tracks associated with a
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// [RTCPeerConnection]
+  /// will never include this property.
   external num get latency;
-  external set channelCount(int value);
+  external set latency(num value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`channelCount`** property is an integer indicating how many
+  /// audio channels the [MediaStreamTrack] is currently configured to have.
+  /// This
+  /// lets you determine what value was selected to comply with your specified
+  /// constraints for
+  /// this property's value as described in the
+  /// [MediaTrackConstraints.channelCount] property you provided when calling
+  /// either [MediaDevices.getUserMedia] or
+  /// [MediaStreamTrack.applyConstraints].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.channelCount] as returned by
+  /// a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
   external int get channelCount;
-  external set deviceId(String value);
+  external set channelCount(int value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`deviceId`** property is a string which
+  /// uniquely identifies the source for the corresponding [MediaStreamTrack]
+  /// for
+  /// the origin corresponding to the browsing session. This lets you determine
+  /// what value was
+  /// selected to comply with your specified constraints for this property's
+  /// value as
+  /// described in the [MediaTrackConstraints.deviceId] property you provided
+  /// when calling either [MediaDevices.getUserMedia].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.deviceId] as returned by a
+  /// call to [MediaDevices.getSupportedConstraints]. However, typically this
+  /// is unnecessary since browsers will ignore any constraints they're
+  /// unfamiliar with.
+  ///
+  /// Because  doesn't include this information, tracks associated with a
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// [RTCPeerConnection]
+  /// will never include this property.
   external String get deviceId;
-  external set groupId(String value);
+  external set deviceId(String value);
+
+  /// The [MediaTrackSettings] dictionary's
+  /// **`groupId`** property is a browsing-session unique
+  /// string which identifies the group of devices which includes the source
+  /// for the [MediaStreamTrack]. This lets you determine what value was
+  /// selected
+  /// to comply with your specified constraints for this property's value as
+  /// described in the
+  /// [MediaTrackConstraints.groupId] property you provided when calling either
+  /// [MediaDevices.getUserMedia].
+  ///
+  /// If needed, you can determine whether or not this constraint is supported
+  /// by checking
+  /// the value of [MediaTrackSupportedConstraints.groupId] as returned by a
+  /// call
+  /// to [MediaDevices.getSupportedConstraints]. However, typically this is
+  /// unnecessary since browsers will ignore any constraints they're unfamiliar
+  /// with.
+  ///
+  /// Because  doesn't include this information, tracks associated with a
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// [RTCPeerConnection]
+  /// will never include this property.
   external String get groupId;
+  external set groupId(String value);
 }
 
 /// The **`MediaStreamTrackEvent`** interface of the
@@ -506,6 +1058,8 @@ extension type MediaStreamTrackEvent._(JSObject _) implements Event, JSObject {
     MediaStreamTrackEventInit eventInitDict,
   );
 
+  /// The **`track`** read-only property of the [MediaStreamTrackEvent]
+  /// interface returns the [MediaStreamTrack] associated with this event.
   external MediaStreamTrack get track;
 }
 extension type MediaStreamTrackEventInit._(JSObject _)
@@ -517,8 +1071,8 @@ extension type MediaStreamTrackEventInit._(JSObject _)
     required MediaStreamTrack track,
   });
 
-  external set track(MediaStreamTrack value);
   external MediaStreamTrack get track;
+  external set track(MediaStreamTrack value);
 }
 
 /// The **`OverconstrainedError`** interface of the
@@ -539,6 +1093,9 @@ extension type OverconstrainedError._(JSObject _)
     String message,
   ]);
 
+  /// The **`constraint`** read-only property of the
+  /// [OverconstrainedError] interface returns the constraint that was supplied
+  /// in the constructor, meaning the constraint that was not satisfied.
   external String get constraint;
 }
 
@@ -596,8 +1153,8 @@ extension type MediaDevices._(JSObject _) implements EventTarget, JSObject {
   /// > ignore the request.
   external JSPromise<MediaStream> getUserMedia(
       [MediaStreamConstraints constraints]);
-  external set ondevicechange(EventHandler value);
   external EventHandler get ondevicechange;
+  external set ondevicechange(EventHandler value);
 }
 
 /// The **`MediaDeviceInfo`** interface of the [Media Capture and Streams API]
@@ -614,9 +1171,40 @@ extension type MediaDeviceInfo._(JSObject _) implements JSObject {
   /// The **`toJSON()`** method of the [MediaDeviceInfo] interface is a ; it
   /// returns a JSON representation of the [MediaDeviceInfo] object.
   external JSObject toJSON();
+
+  /// The **`deviceId`** read-only property
+  /// of the [MediaDeviceInfo] interface returns a string
+  /// that is an identifier for the represented device and is persisted across
+  /// sessions.
+  ///
+  /// It is un-guessable by other applications, and unique to the origin of
+  /// the calling application. It is reset when the user clears cookies. For
+  /// private browsing,
+  /// a different identifier is used that is not persisted across sessions.
   external String get deviceId;
+
+  /// The **`kind`** read-only property of
+  /// the [MediaDeviceInfo] interface returns an enumerated value, that is
+  /// either `"videoinput"`, `"audioinput"` or `"audiooutput"`.
   external MediaDeviceKind get kind;
+
+  /// The **`label`** read-only
+  /// property of the [MediaDeviceInfo] interface returns a
+  /// string describing this device (for example
+  /// "External USB Webcam").
+  ///
+  /// Only available during active `MediaStream`
+  /// use, or when persistent permissions have been granted.
   external String get label;
+
+  /// The **`groupId`** read-only property of
+  /// the [MediaDeviceInfo] interface returns a string that
+  /// is a group identifier.
+  ///
+  /// Two devices have the same group identifier if they
+  /// belong to the same physical device; for example, a monitor with both a
+  /// built-in camera
+  /// and microphone.
   external String get groupId;
 }
 
@@ -643,10 +1231,10 @@ extension type MediaStreamConstraints._(JSObject _) implements JSObject {
     JSAny audio,
   });
 
-  external set video(JSAny value);
   external JSAny get video;
-  external set audio(JSAny value);
+  external set video(JSAny value);
   external JSAny get audio;
+  external set audio(JSAny value);
 }
 extension type DoubleRange._(JSObject _) implements JSObject {
   external factory DoubleRange({
@@ -654,10 +1242,10 @@ extension type DoubleRange._(JSObject _) implements JSObject {
     num min,
   });
 
-  external set max(num value);
   external num get max;
-  external set min(num value);
+  external set max(num value);
   external num get min;
+  external set min(num value);
 }
 extension type ConstrainDoubleRange._(JSObject _)
     implements DoubleRange, JSObject {
@@ -668,10 +1256,10 @@ extension type ConstrainDoubleRange._(JSObject _)
     num ideal,
   });
 
-  external set exact(num value);
   external num get exact;
-  external set ideal(num value);
+  external set exact(num value);
   external num get ideal;
+  external set ideal(num value);
 }
 extension type ULongRange._(JSObject _) implements JSObject {
   external factory ULongRange({
@@ -679,10 +1267,10 @@ extension type ULongRange._(JSObject _) implements JSObject {
     int min,
   });
 
-  external set max(int value);
   external int get max;
-  external set min(int value);
+  external set max(int value);
   external int get min;
+  external set min(int value);
 }
 extension type ConstrainULongRange._(JSObject _)
     implements ULongRange, JSObject {
@@ -693,10 +1281,10 @@ extension type ConstrainULongRange._(JSObject _)
     int ideal,
   });
 
-  external set exact(int value);
   external int get exact;
-  external set ideal(int value);
+  external set exact(int value);
   external int get ideal;
+  external set ideal(int value);
 }
 extension type ConstrainBooleanParameters._(JSObject _) implements JSObject {
   external factory ConstrainBooleanParameters({
@@ -704,10 +1292,10 @@ extension type ConstrainBooleanParameters._(JSObject _) implements JSObject {
     bool ideal,
   });
 
-  external set exact(bool value);
   external bool get exact;
-  external set ideal(bool value);
+  external set exact(bool value);
   external bool get ideal;
+  external set ideal(bool value);
 }
 extension type ConstrainDOMStringParameters._(JSObject _) implements JSObject {
   external factory ConstrainDOMStringParameters({
@@ -715,10 +1303,10 @@ extension type ConstrainDOMStringParameters._(JSObject _) implements JSObject {
     JSAny ideal,
   });
 
-  external set exact(JSAny value);
   external JSAny get exact;
-  external set ideal(JSAny value);
+  external set exact(JSAny value);
   external JSAny get ideal;
+  external set ideal(JSAny value);
 }
 extension type CameraDevicePermissionDescriptor._(JSObject _)
     implements PermissionDescriptor, JSObject {
@@ -727,6 +1315,6 @@ extension type CameraDevicePermissionDescriptor._(JSObject _)
     bool panTiltZoom,
   });
 
-  external set panTiltZoom(bool value);
   external bool get panTiltZoom;
+  external set panTiltZoom(bool value);
 }
diff --git a/lib/src/dom/mediasession.dart b/lib/src/dom/mediasession.dart
index 5b52f6e3..59e8d1ed 100644
--- a/lib/src/dom/mediasession.dart
+++ b/lib/src/dom/mediasession.dart
@@ -76,10 +76,22 @@ extension type MediaSession._(JSObject _) implements JSObject {
   /// Note that the status of the camera is not tracked in the [MediaSession]
   /// itself, but must be tracked separately.
   external void setCameraActive(bool active);
-  external set metadata(MediaMetadata? value);
+
+  /// The **`metadata`** property of the [MediaSession]
+  /// interface contains a [MediaMetadata] object providing descriptive
+  /// information about the currently playing media, or `null` if the metadata
+  /// has
+  /// not been set. This metadata is provided by the browser to the device for
+  /// presentation in
+  /// any standard media control user interface the device might offer.
   external MediaMetadata? get metadata;
-  external set playbackState(MediaSessionPlaybackState value);
+  external set metadata(MediaMetadata? value);
+
+  /// The **`playbackState`** property of the
+  /// [MediaSession] interface indicates whether the current media session is
+  /// playing or paused.
   external MediaSessionPlaybackState get playbackState;
+  external set playbackState(MediaSessionPlaybackState value);
 }
 
 /// The **`MediaMetadata`** interface of the [Media Session API] allows a web
@@ -92,14 +104,30 @@ extension type MediaSession._(JSObject _) implements JSObject {
 extension type MediaMetadata._(JSObject _) implements JSObject {
   external factory MediaMetadata([MediaMetadataInit init]);
 
-  external set title(String value);
+  /// The **`title`** property of the
+  /// [MediaMetaData] interface returns or sets the title of the media to be
+  /// played.
   external String get title;
-  external set artist(String value);
+  external set title(String value);
+
+  /// The **`artist`** property of the
+  /// [MediaMetaData] interface returns or sets the name of the artist, group,
+  /// creator, etc., of the media to be played.
   external String get artist;
-  external set album(String value);
+  external set artist(String value);
+
+  /// The **`album`** property of the
+  /// [MediaMetaData] interface returns or sets the name of the album or
+  /// collection containing the media to be played.
   external String get album;
-  external set artwork(JSArray<MediaImage> value);
+  external set album(String value);
+
+  /// The **`artwork`** property of the
+  /// [MediaMetaData] interface returns or sets an array of
+  /// objects representing images associated with playing
+  /// media.
   external JSArray<MediaImage> get artwork;
+  external set artwork(JSArray<MediaImage> value);
 }
 extension type MediaMetadataInit._(JSObject _) implements JSObject {
   external factory MediaMetadataInit({
@@ -109,14 +137,14 @@ extension type MediaMetadataInit._(JSObject _) implements JSObject {
     JSArray<MediaImage> artwork,
   });
 
-  external set title(String value);
   external String get title;
-  external set artist(String value);
+  external set title(String value);
   external String get artist;
-  external set album(String value);
+  external set artist(String value);
   external String get album;
-  external set artwork(JSArray<MediaImage> value);
+  external set album(String value);
   external JSArray<MediaImage> get artwork;
+  external set artwork(JSArray<MediaImage> value);
 }
 extension type MediaImage._(JSObject _) implements JSObject {
   external factory MediaImage({
@@ -125,12 +153,12 @@ extension type MediaImage._(JSObject _) implements JSObject {
     String type,
   });
 
-  external set src(String value);
   external String get src;
-  external set sizes(String value);
+  external set src(String value);
   external String get sizes;
-  external set type(String value);
+  external set sizes(String value);
   external String get type;
+  external set type(String value);
 }
 extension type MediaPositionState._(JSObject _) implements JSObject {
   external factory MediaPositionState({
@@ -139,12 +167,12 @@ extension type MediaPositionState._(JSObject _) implements JSObject {
     num position,
   });
 
-  external set duration(num value);
   external num get duration;
-  external set playbackRate(num value);
+  external set duration(num value);
   external num get playbackRate;
-  external set position(num value);
+  external set playbackRate(num value);
   external num get position;
+  external set position(num value);
 }
 extension type MediaSessionActionDetails._(JSObject _) implements JSObject {
   external factory MediaSessionActionDetails({
@@ -154,12 +182,12 @@ extension type MediaSessionActionDetails._(JSObject _) implements JSObject {
     bool fastSeek,
   });
 
-  external set action(MediaSessionAction value);
   external MediaSessionAction get action;
-  external set seekOffset(num value);
+  external set action(MediaSessionAction value);
   external num get seekOffset;
-  external set seekTime(num value);
+  external set seekOffset(num value);
   external num get seekTime;
-  external set fastSeek(bool value);
+  external set seekTime(num value);
   external bool get fastSeek;
+  external set fastSeek(bool value);
 }
diff --git a/lib/src/dom/mediastream_recording.dart b/lib/src/dom/mediastream_recording.dart
index def70685..77c24aac 100644
--- a/lib/src/dom/mediastream_recording.dart
+++ b/lib/src/dom/mediastream_recording.dart
@@ -141,23 +141,66 @@ extension type MediaRecorder._(JSObject _) implements EventTarget, JSObject {
   /// attribute.)
   /// 3. Create a new Blob and place subsequently captured data into it.
   external void requestData();
+
+  /// The **`stream`** read-only property of the [MediaRecorder] interface
+  /// returns the stream that was passed into the [MediaRecorder.MediaRecorder]
+  /// constructor when the `MediaRecorder` was created.
   external MediaStream get stream;
+
+  /// The **`mimeType`** read-only property of the [MediaRecorder] interface
+  /// returns the  media type that was specified when creating the
+  /// [MediaRecorder] object, or, if none was specified, which was chosen by the
+  /// browser.
+  /// This is the file format of the file that would result from writing all of
+  /// the recorded data to disk.
+  ///
+  /// Keep in mind that not all codecs are supported by a given container; if
+  /// you write media using a codec that is not supported by a given media
+  /// container, the resulting file may not work reliably if at all when you try
+  /// to play it back.
+  /// See our
+  /// [media type and format guide](https://developer.mozilla.org/en-US/docs/Web/Media/Formats)
+  /// for information about container and codec support across browsers.
+  ///
+  /// > **Note:** The term "MIME type" is officially considered to be
+  /// > historical; these strings are now officially known as **media types**.
+  /// > MDN Web Docs content uses the terms interchangeably.
   external String get mimeType;
+
+  /// The **`state`** read-only property of the [MediaRecorder] interface
+  /// returns the current state of the current `MediaRecorder` object.
   external RecordingState get state;
-  external set onstart(EventHandler value);
   external EventHandler get onstart;
-  external set onstop(EventHandler value);
+  external set onstart(EventHandler value);
   external EventHandler get onstop;
-  external set ondataavailable(EventHandler value);
+  external set onstop(EventHandler value);
   external EventHandler get ondataavailable;
-  external set onpause(EventHandler value);
+  external set ondataavailable(EventHandler value);
   external EventHandler get onpause;
-  external set onresume(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onresume;
-  external set onerror(EventHandler value);
+  external set onresume(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
+
+  /// The **`videoBitsPerSecond`** read-only
+  /// property of the [MediaRecorder] interface returns the video encoding
+  /// bit rate in use.
+  ///
+  /// This may differ from the bit rate specified in the
+  /// constructor, if it was provided.
   external int get videoBitsPerSecond;
+
+  /// The **`audioBitsPerSecond`** read-only
+  /// property of the [MediaRecorder] interface returns the audio encoding bit
+  /// rate in use.
+  ///
+  /// This may differ from the bit rate specified in the constructor (if
+  /// it was provided).
   external int get audioBitsPerSecond;
+
+  /// The **`audioBitrateMode`** read-only property of the [MediaRecorder]
+  /// interface returns the bitrate mode used to encode audio tracks.
   external BitrateMode get audioBitrateMode;
 }
 extension type MediaRecorderOptions._(JSObject _) implements JSObject {
@@ -171,20 +214,20 @@ extension type MediaRecorderOptions._(JSObject _) implements JSObject {
     int videoKeyFrameIntervalCount,
   });
 
-  external set mimeType(String value);
   external String get mimeType;
-  external set audioBitsPerSecond(int value);
+  external set mimeType(String value);
   external int get audioBitsPerSecond;
-  external set videoBitsPerSecond(int value);
+  external set audioBitsPerSecond(int value);
   external int get videoBitsPerSecond;
-  external set bitsPerSecond(int value);
+  external set videoBitsPerSecond(int value);
   external int get bitsPerSecond;
-  external set audioBitrateMode(BitrateMode value);
+  external set bitsPerSecond(int value);
   external BitrateMode get audioBitrateMode;
-  external set videoKeyFrameIntervalDuration(DOMHighResTimeStamp value);
+  external set audioBitrateMode(BitrateMode value);
   external DOMHighResTimeStamp get videoKeyFrameIntervalDuration;
-  external set videoKeyFrameIntervalCount(int value);
+  external set videoKeyFrameIntervalDuration(DOMHighResTimeStamp value);
   external int get videoKeyFrameIntervalCount;
+  external set videoKeyFrameIntervalCount(int value);
 }
 
 /// The **`BlobEvent`** interface of the
@@ -202,7 +245,17 @@ extension type BlobEvent._(JSObject _) implements Event, JSObject {
     BlobEventInit eventInitDict,
   );
 
+  /// The **`data`** read-only property of the [BlobEvent] interface represents
+  /// a [Blob] associated with the event.
   external Blob get data;
+
+  /// The **`timecode`** read-only property of the [BlobEvent] interface
+  /// indicates the difference between the timestamp of the first chunk of data,
+  /// and the timestamp of the first chunk in the first `BlobEvent` produced by
+  /// this recorder.
+  ///
+  /// Note that the `timecode` in the first produced `BlobEvent` does not need
+  /// to be zero.
   external DOMHighResTimeStamp get timecode;
 }
 extension type BlobEventInit._(JSObject _) implements JSObject {
@@ -211,8 +264,8 @@ extension type BlobEventInit._(JSObject _) implements JSObject {
     DOMHighResTimeStamp timecode,
   });
 
-  external set data(Blob value);
   external Blob get data;
-  external set timecode(DOMHighResTimeStamp value);
+  external set data(Blob value);
   external DOMHighResTimeStamp get timecode;
+  external set timecode(DOMHighResTimeStamp value);
 }
diff --git a/lib/src/dom/navigation_timing.dart b/lib/src/dom/navigation_timing.dart
index 205d055b..61b97f02 100644
--- a/lib/src/dom/navigation_timing.dart
+++ b/lib/src/dom/navigation_timing.dart
@@ -43,15 +43,123 @@ extension type PerformanceNavigationTiming._(JSObject _)
   /// is a ; it returns a JSON representation of the
   /// [PerformanceNavigationTiming] object.
   external JSObject toJSON();
+
+  /// The **`unloadEventStart`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately before the current
+  /// document's
+  /// [`unload`](https://developer.mozilla.org/en-US/docs/Web/API/Window/unload_event)
+  /// event handler starts.
   external DOMHighResTimeStamp get unloadEventStart;
+
+  /// The **`unloadEventEnd`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately after the current
+  /// document's
+  /// [`unload`](https://developer.mozilla.org/en-US/docs/Web/API/Window/unload_event)
+  /// event handler completes.
   external DOMHighResTimeStamp get unloadEventEnd;
+
+  /// The **`domInteractive`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately before the user
+  /// agent sets the document's
+  /// [`readyState`](https://developer.mozilla.org/en-US/docs/Web/API/Document/readyState)
+  /// to `"interactive"`.
+  ///
+  /// > **Note:** This property is **not**  (TTI). This property refers to the
+  /// > time when DOM construction is finished and interaction to it from
+  /// > JavaScript is possible. See also the `interactive` state of
+  /// > [Document.readyState] which corresponds to this property.
+  ///
+  /// Measuring DOM processing time may not be consequential unless your site
+  /// has a very large HTML source to a construct a Document Object Model from.
+  ///
+  /// If there is no parser-blocking JavaScript then the
+  /// [`DOMContentLoaded`](https://developer.mozilla.org/en-US/docs/Web/API/Document/DOMContentLoaded_event)
+  /// event (see
+  /// [`domContentLoadedEventStart`](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventStart)
+  /// for the timestamp) will fire immediately after `domInteractive`.
   external DOMHighResTimeStamp get domInteractive;
+
+  /// The **`domContentLoadedEventStart`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately before the current
+  /// document's
+  /// [`DOMContentLoaded`](https://developer.mozilla.org/en-US/docs/Web/API/Document/DOMContentLoaded_event)
+  /// event handler starts.
+  ///
+  /// Typically frameworks and libraries wait for the `DOMContentLoaded` event
+  /// before starting to run their code. We can use the
+  /// `domContentLoadedEventStart` and the
+  /// [`domContentLoadedEventEnd`](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventEnd)
+  /// properties to calculate how long this takes to run.
   external DOMHighResTimeStamp get domContentLoadedEventStart;
+
+  /// The **`domContentLoadedEventEnd`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately after the current
+  /// document's
+  /// [`DOMContentLoaded`](https://developer.mozilla.org/en-US/docs/Web/API/Document/DOMContentLoaded_event)
+  /// event handler completes.
+  ///
+  /// Typically frameworks and libraries wait for the `DOMContentLoaded` event
+  /// before starting to run their code. We can use the
+  /// `domContentLoadedEventEnd` and the
+  /// [`domContentLoadedEventStart`](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceNavigationTiming/domContentLoadedEventStart)
+  /// properties to calculate how long this takes to run.
   external DOMHighResTimeStamp get domContentLoadedEventEnd;
+
+  /// The **`domComplete`** read-only property returns a [DOMHighResTimeStamp]
+  /// representing the time immediately before the user agent sets the
+  /// document's
+  /// [`readyState`](https://developer.mozilla.org/en-US/docs/Web/API/Document/readyState)
+  /// to `"complete"`.
+  ///
+  /// See also the `complete` state of [Document.readyState] which corresponds
+  /// to this property and refers to the state in which the document and all
+  /// sub-resources have finished loading. The state also indicates that the
+  /// [Window.load_event] event is about to fire.
   external DOMHighResTimeStamp get domComplete;
+
+  /// The **`loadEventStart`** read-only property returns a
+  /// [DOMHighResTimeStamp] representing the time immediately before the current
+  /// document's
+  /// [`load`](https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event)
+  /// event handler starts.
   external DOMHighResTimeStamp get loadEventStart;
+
+  /// The **`loadEventEnd`** read-only property returns a [DOMHighResTimeStamp]
+  /// representing the time immediately after the current document's
+  /// [`load`](https://developer.mozilla.org/en-US/docs/Web/API/Window/load_event)
+  /// event handler completes.
   external DOMHighResTimeStamp get loadEventEnd;
+
+  /// The **`type`** read-only property returns the type of navigation.
+  ///
+  /// You can use this property to categorize your navigation timing data as
+  /// each of these types will have different performance characteristics. Users
+  /// going back and forth might experience a faster site than users performing
+  /// navigation for the first time or submitting forms, etc.
+  ///
+  /// For example, if your site provides new content frequently, you might want
+  /// to refresh that content using
+  /// [Fetch](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) or
+  /// similar and avoid users having to hit reload for the entire page all the
+  /// time. The `"reload"` type can help you find pages that are reloaded
+  /// frequently.
   external NavigationTimingType get type;
+
+  /// The **`redirectCount`** read-only property returns a number representing
+  /// the number of redirects since the last non-redirect navigation in the
+  /// current browsing context.
+  ///
+  /// The higher the number of redirects on a page, the longer the page load
+  /// time. To improve the performance of your web page, avoid multiple
+  /// redirects.
+  ///
+  /// The [PerformanceResourceTiming.redirectStart] and
+  /// [PerformanceResourceTiming.redirectEnd] properties can be used to measure
+  /// redirection time. Note that they will return `0` for cross-origin
+  /// redirects.
+  ///
+  /// Note that client side redirects, such as `<meta http-equiv="refresh"
+  /// content="0; url=https://example.com/">` are not considered here.
   external int get redirectCount;
   external DOMHighResTimeStamp get criticalCHRestart;
 }
@@ -79,26 +187,350 @@ extension type PerformanceTiming._(JSObject _) implements JSObject {
   /// The legacy **`toJSON()`** method of the [PerformanceTiming] interface is a
   /// ; it returns a JSON representation of the [PerformanceTiming] object.
   external JSObject toJSON();
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming] interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.navigationStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, right after the prompt for unload
+  /// terminates on
+  /// the previous document in the same browsing context. If there is no
+  /// previous document,
+  /// this value will be the same as [PerformanceTiming.fetchStart].
   external int get navigationStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.unloadEventStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, the [Window.unload_event] event has
+  /// been thrown. If
+  /// there is no previous document, or if the previous document, or one of the
+  /// needed
+  /// redirects, is not of the same origin, the value returned is `0`.
   external int get unloadEventStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.unloadEventEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, the [Window.unload_event] event
+  /// handler finishes. If
+  /// there is no previous document, or if the previous document, or one of the
+  /// needed
+  /// redirects, is not of the same origin, the value returned is `0`.
   external int get unloadEventEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.redirectStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, the first HTTP redirect starts. If
+  /// there is no
+  /// redirect, or if one of the redirect is not of the same origin, the value
+  /// returned is
+  /// `0`.
   external int get redirectStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.redirectEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, the last HTTP redirect is completed,
+  /// that is when
+  /// the last byte of the HTTP response has been received. If there is no
+  /// redirect, or if one
+  /// of the redirect is not of the same origin, the value returned is `0`.
   external int get redirectEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.fetchStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, the browser is ready to fetch the
+  /// document using
+  /// an HTTP request. This moment is _before_ the check to any application
+  /// cache.
   external int get fetchStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domainLookupStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, where the domain lookup starts. If a
+  /// persistent
+  /// connection is used, or the information is stored in a cache or a local
+  /// resource, the
+  /// value will be the same as [PerformanceTiming.fetchStart].
   external int get domainLookupStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domainLookupEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, where the domain lookup is finished.
+  /// If a
+  /// persistent connection is used, or the information is stored in a cache or
+  /// a local
+  /// resource, the value will be the same as [PerformanceTiming.fetchStart].
   external int get domainLookupEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.connectStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, where the request to open a
+  /// connection is sent to
+  /// the network. If the transport layer reports an error and the connection
+  /// establishment is
+  /// started again, the last connection establishment start time is given. If a
+  /// persistent
+  /// connection is used, the value will be the same as
+  /// [PerformanceTiming.fetchStart].
   external int get connectStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.connectEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, where the connection is opened
+  /// network. If the
+  /// transport layer reports an error and the connection establishment is
+  /// started again, the
+  /// last connection establishment end time is given. If a persistent
+  /// connection is used, the
+  /// value will be the same as [PerformanceTiming.fetchStart]. A connection is
+  /// considered as opened when all secure connection handshake, or SOCKS
+  /// authentication, is
+  /// terminated.
   external int get connectEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming] interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.secureConnectionStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, where the secure connection
+  /// handshake starts. If
+  /// no such connection is requested, it returns `0`.
   external int get secureConnectionStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.requestStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the browser sent the request to
+  /// obtain the
+  /// actual document, from the server or from a cache. If the transport layer
+  /// fails after the
+  /// start of the request and the connection is reopened, this property will be
+  /// set to the
+  /// time corresponding to the new request.
   external int get requestStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.responseStart`**
+  /// read-only property returns an `unsigned long long` representing the moment
+  /// in
+  /// time (in milliseconds since the UNIX epoch) when the browser received the
+  /// first byte of
+  /// the response from the server, cache, or local resource.
   external int get responseStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.responseEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the browser received the last
+  /// byte of the
+  /// response, or when the connection is closed if this happened first, from
+  /// the server from
+  /// a cache or from a local resource.
   external int get responseEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domLoading`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the parser started its work,
+  /// that is when its
+  /// [Document.readyState] changes to `'loading'` and the
+  /// corresponding [Document.readystatechange_event] event is thrown.
   external int get domLoading;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domInteractive`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the parser finished its work on
+  /// the main
+  /// document, that is when its [Document.readyState] changes to
+  /// `'interactive'` and the corresponding [Document.readystatechange_event]
+  /// event is
+  /// thrown.
+  ///
+  /// This property can be used to measure the speed of loading websites that
+  /// users
+  /// _feels_. Nevertheless there are a few caveats that happens if scripts are
+  /// blocking rendering and not loaded asynchronously or with custom Web fonts.
+  /// [Check if you are in one of these cases](https://www.stevesouders.com/blog/2015/08/07/dominteractive-is-it-really/)
+  /// before using this property as a proxy for the
+  /// user experience of a website's speed of loading.
   external int get domInteractive;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domContentLoadedEventStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, right before the parser sent the
+  /// [Document.DOMContentLoaded_event] event, that is right after all the
+  /// scripts that need to be
+  /// executed right after parsing has been executed.
   external int get domContentLoadedEventStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domContentLoadedEventEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, right after all the scripts that
+  /// need to be
+  /// executed as soon as possible, in order or not, has been executed.
   external int get domContentLoadedEventEnd;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.domComplete`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the parser finished its work on
+  /// the main
+  /// document, that is when its [Document.readyState] changes to
+  /// `'complete'` and the corresponding [Document.readystatechange_event] event
+  /// is
+  /// thrown.
   external int get domComplete;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface's [PerformanceNavigationTiming.loadEventStart] read-only
+  /// > property instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.loadEventStart`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the [Window.load_event] event
+  /// was sent for the
+  /// current document. If this event has not yet been sent, it returns `0.`
   external int get loadEventStart;
+
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming]
+  /// > interface's [PerformanceNavigationTiming.loadEventEnd] read-only
+  /// > property instead.
+  ///
+  /// The legacy
+  /// **`PerformanceTiming.loadEventEnd`**
+  /// read-only property returns an `unsigned long long` representing the
+  /// moment,
+  /// in milliseconds since the UNIX epoch, when the [Window.load_event] event
+  /// handler
+  /// terminated, that is when the load event is completed. If this event has
+  /// not yet been
+  /// sent, or is not yet completed, it returns `0.`
   external int get loadEventEnd;
 }
 
@@ -130,6 +562,24 @@ extension type PerformanceNavigation._(JSObject _) implements JSObject {
   /// The **`toJSON()`** method of the [PerformanceNavigation] interface is a ;
   /// it returns a JSON representation of the [PerformanceNavigation] object.
   external JSObject toJSON();
+
+  /// The legacy
+  /// **`PerformanceNavigation.type`**
+  /// read-only property returns an `unsigned short` containing a constant
+  /// describing how the navigation to this page was done.
+  ///
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming] interface instead.
   external int get type;
+
+  /// The legacy
+  /// **`PerformanceNavigation.redirectCount`**
+  /// read-only property returns an `unsigned short` representing the number of
+  /// REDIRECTs done before reaching the page.
+  ///
+  /// > **Warning:** This interface of this property is deprecated in the
+  /// > [Navigation Timing Level 2 specification](https://w3c.github.io/navigation-timing/#obsolete).
+  /// > Please use the [PerformanceNavigationTiming] interface instead.
   external int get redirectCount;
 }
diff --git a/lib/src/dom/notifications.dart b/lib/src/dom/notifications.dart
index 3b664da6..4cf5552e 100644
--- a/lib/src/dom/notifications.dart
+++ b/lib/src/dom/notifications.dart
@@ -61,28 +61,151 @@ extension type Notification._(JSObject _) implements EventTarget, JSObject {
   /// > already playing
   /// > in a music app).
   external void close();
-  external set onclick(EventHandler value);
   external EventHandler get onclick;
-  external set onshow(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onshow;
-  external set onerror(EventHandler value);
+  external set onshow(EventHandler value);
   external EventHandler get onerror;
-  external set onclose(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onclose;
+  external set onclose(EventHandler value);
+
+  /// The **`title`** read-only property of the
+  /// [Notification] interface indicates the title of the notification, as
+  /// specified in the `title` parameter of the
+  /// [Notification.Notification] constructor.
   external String get title;
+
+  /// The **`dir`** read-only property of the [Notification] interface indicates
+  /// the text direction of the notification, as specified in the `dir` option
+  /// of the [Notification.Notification] constructor.
   external NotificationDirection get dir;
+
+  /// The **`lang`** read-only property of the
+  /// [Notification] interface indicates the language used in the notification,
+  /// as specified in the `lang` option of the
+  /// [Notification.Notification] constructor.
+  ///
+  /// The language itself is specified using a string representing a language
+  /// tag according to `5646, "Tags for Identifying Languages (also known as BCP
+  /// 47)"`.
+  /// See the Sitepoint
+  /// [ISO 2 letter language codes](https://www.sitepoint.com/iso-2-letter-language-codes/)
+  /// page for a simple reference.
   external String get lang;
+
+  /// The **`body`** read-only property of the
+  /// [Notification] interface indicates the body string of the notification, as
+  /// specified in the `body` option of the
+  /// [Notification.Notification] constructor.
   external String get body;
+
+  /// The **`tag`** read-only property of the
+  /// [Notification] interface signifies an identifying tag for the
+  /// notification,
+  /// as specified in the `tag` option of the
+  /// [Notification.Notification] constructor.
+  ///
+  /// The idea of notification tags is that more than one notification can share
+  /// the same
+  /// tag, linking them together. One notification can then be programmatically
+  /// replaced with
+  /// another to avoid the users' screen being filled up with a huge number of
+  /// similar
+  /// notifications.
   external String get tag;
+
+  /// The **`image`** read-only property of the
+  /// [Notification] interface contains the URL of an image to be displayed as
+  /// part of the notification, as specified in the `image` option of the
+  /// [Notification.Notification] constructor.
   external String get image;
+
+  /// The **`icon`** read-only property of the
+  /// [Notification] interface contains the URL of an icon to be displayed as
+  /// part of the notification, as specified in the `icon` option of the
+  /// [Notification.Notification] constructor.
   external String get icon;
+
+  /// The **`badge`** read-only property of the [Notification] interface returns
+  /// a string containing the URL of an image to represent the notification when
+  /// there is not enough space to display the notification itself such as for
+  /// example, the Android Notification Bar. On Android devices, the badge
+  /// should accommodate devices up to 4x resolution, about 96 by 96 px, and the
+  /// image will be automatically masked.
   external String get badge;
+
+  /// The **`vibrate`** read-only property of the [Notification]
+  /// interface specifies a
+  /// [vibration pattern](https://developer.mozilla.org/en-US/docs/Web/API/Vibration_API#vibration_patterns)
+  /// for the device's vibration hardware to emit when the notification fires.
+  /// This is
+  /// specified in the `vibrate` option of the
+  /// [Notification.Notification] constructor.
   external JSArray<JSNumber> get vibrate;
+
+  /// The **`timestamp`** read-only property of the
+  /// [Notification] interface returns a number, as
+  /// specified in the `timestamp` option of the
+  /// [Notification.Notification] constructor.
+  ///
+  /// The notification's timestamp can represent the time, in milliseconds since
+  /// 00:00:00 UTC
+  /// on 1 January 1970, of the event for which the notification was created, or
+  /// it can be an
+  /// arbitrary timestamp that you want associated with the notification. For
+  /// example, a
+  /// timestamp for an upcoming meeting could be set in the future, whereas a
+  /// timestamp for a
+  /// missed message could be set in the past.
   external EpochTimeStamp get timestamp;
+
+  /// The **`renotify`** read-only property of the
+  /// [Notification] interface specifies whether the user should be notified
+  /// after a new notification replaces an old one, as specified in the
+  /// `renotify`
+  /// option of the [Notification.Notification] constructor.
   external bool get renotify;
+
+  /// The **`silent`** read-only property of the
+  /// [Notification] interface specifies whether the notification should be
+  /// silent, i.e., no sounds or vibrations should be issued, regardless of the
+  /// device
+  /// settings. This is specified in the `silent` option of the
+  /// [Notification.Notification] constructor.
   external bool? get silent;
+
+  /// The **`requireInteraction`** read-only property of the [Notification]
+  /// interface returns a boolean value indicating that a notification should
+  /// remain active until the user clicks or dismisses it, rather than closing
+  /// automatically.
+  ///
+  /// > **Note:** This can be set when the notification is first created by
+  /// > setting the `requireInteraction` option to `true` in the options object
+  /// > of the [Notification.Notification] constructor.
   external bool get requireInteraction;
+
+  /// The **`data`** read-only property of the
+  /// [Notification] interface returns a structured clone of the notification's
+  /// data, as specified in the `data` option of the
+  /// [Notification.Notification] constructor.
+  ///
+  /// The notification's data can be any arbitrary data that you want associated
+  /// with the
+  /// notification.
   external JSAny? get data;
+
+  /// The **`actions`** read-only property of the [Notification] interface
+  /// provides the actions available for users to choose from for interacting
+  /// with the notification.
+  ///
+  /// The actions are set using the `actions` option of the second argument for
+  /// the [ServiceWorkerRegistration.showNotification] method and
+  /// [Notification.Notification] constructor.
+  ///
+  /// > **Note:** Browsers typically limit the maximum number of actions they
+  /// > will display for a particular notification. Check the static
+  /// > [Notification.maxActions_static] property to determine the limit.
   external JSArray<NotificationAction> get actions;
 }
 extension type NotificationOptions._(JSObject _) implements JSObject {
@@ -103,34 +226,34 @@ extension type NotificationOptions._(JSObject _) implements JSObject {
     JSArray<NotificationAction> actions,
   });
 
-  external set dir(NotificationDirection value);
   external NotificationDirection get dir;
-  external set lang(String value);
+  external set dir(NotificationDirection value);
   external String get lang;
-  external set body(String value);
+  external set lang(String value);
   external String get body;
-  external set tag(String value);
+  external set body(String value);
   external String get tag;
-  external set image(String value);
+  external set tag(String value);
   external String get image;
-  external set icon(String value);
+  external set image(String value);
   external String get icon;
-  external set badge(String value);
+  external set icon(String value);
   external String get badge;
-  external set vibrate(VibratePattern value);
+  external set badge(String value);
   external VibratePattern get vibrate;
-  external set timestamp(EpochTimeStamp value);
+  external set vibrate(VibratePattern value);
   external EpochTimeStamp get timestamp;
-  external set renotify(bool value);
+  external set timestamp(EpochTimeStamp value);
   external bool get renotify;
-  external set silent(bool? value);
+  external set renotify(bool value);
   external bool? get silent;
-  external set requireInteraction(bool value);
+  external set silent(bool? value);
   external bool get requireInteraction;
-  external set data(JSAny? value);
+  external set requireInteraction(bool value);
   external JSAny? get data;
-  external set actions(JSArray<NotificationAction> value);
+  external set data(JSAny? value);
   external JSArray<NotificationAction> get actions;
+  external set actions(JSArray<NotificationAction> value);
 }
 extension type NotificationAction._(JSObject _) implements JSObject {
   external factory NotificationAction({
@@ -139,18 +262,18 @@ extension type NotificationAction._(JSObject _) implements JSObject {
     String icon,
   });
 
-  external set action(String value);
   external String get action;
-  external set title(String value);
+  external set action(String value);
   external String get title;
-  external set icon(String value);
+  external set title(String value);
   external String get icon;
+  external set icon(String value);
 }
 extension type GetNotificationOptions._(JSObject _) implements JSObject {
   external factory GetNotificationOptions({String tag});
 
-  external set tag(String value);
   external String get tag;
+  external set tag(String value);
 }
 
 /// The **`NotificationEvent`** interface of the [Notifications API] represents
@@ -175,7 +298,21 @@ extension type NotificationEvent._(JSObject _)
     NotificationEventInit eventInitDict,
   );
 
+  /// The **`notification`** read-only property of the [NotificationEvent]
+  /// interface returns the instance of the [Notification] that was clicked to
+  /// fire the event. The [Notification] provides read-only access to many
+  /// properties that were set at the instantiation time of the Notification
+  /// such as `tag` and `data` attributes that allow you to store information
+  /// for deferred use in the `notificationclick` event.
   external Notification get notification;
+
+  /// The **`action`** read-only property of the [NotificationEvent] interface
+  /// returns the string ID of the notification button the user clicked. This
+  /// value returns an empty string if the user clicked the notification
+  /// somewhere other than an action button, or the notification does not have a
+  /// button. The notification id is set during the creation of the Notification
+  /// via the actions array attribute and can't be modified unless the
+  /// notification is replaced.
   external String get action;
 }
 extension type NotificationEventInit._(JSObject _)
@@ -188,8 +325,8 @@ extension type NotificationEventInit._(JSObject _)
     String action,
   });
 
-  external set notification(Notification value);
   external Notification get notification;
-  external set action(String value);
+  external set notification(Notification value);
   external String get action;
+  external set action(String value);
 }
diff --git a/lib/src/dom/orientation_event.dart b/lib/src/dom/orientation_event.dart
index fb939e10..0cdb9b32 100644
--- a/lib/src/dom/orientation_event.dart
+++ b/lib/src/dom/orientation_event.dart
@@ -30,9 +30,45 @@ extension type DeviceOrientationEvent._(JSObject _) implements Event, JSObject {
   ]);
 
   external static JSPromise<JSString> requestPermission([bool absolute]);
+
+  /// The **`alpha`** read-only property of the [DeviceOrientationEvent]
+  /// interface returns the rotation of the device around the Z axis; that is,
+  /// the number of degrees by
+  /// which the device is being twisted around the center of the screen.
+  /// See
+  /// [Orientation and motion data explained](https://developer.mozilla.org/en-US/docs/Web/API/Device_orientation_events/Orientation_and_motion_data_explained)
+  /// for details.
   external num? get alpha;
+
+  /// The **`beta`** read-only property of the [DeviceOrientationEvent]
+  /// interface returns the rotation of the device around the X axis; that is,
+  /// the number of degrees,
+  /// ranged between -180 and 180, by which the device is tipped forward or
+  /// backward.
+  /// See
+  /// [Orientation and motion data explained](https://developer.mozilla.org/en-US/docs/Web/API/Device_orientation_events/Orientation_and_motion_data_explained)
+  /// for details.
   external num? get beta;
+
+  /// The **`gamma`** read-only property of the [DeviceOrientationEvent]
+  /// interface returns the rotation of the device around the Y axis; that is,
+  /// the number of degrees,
+  /// ranged between `-90` and `90`, by which the device is tilted left
+  /// or right.
+  /// See
+  /// [Orientation and motion data explained](https://developer.mozilla.org/en-US/docs/Web/API/Device_orientation_events/Orientation_and_motion_data_explained)
+  /// for details.
   external num? get gamma;
+
+  /// The **`absolute`** read-only property of the [DeviceOrientationEvent]
+  /// interface indicates whether or not the device is providing orientation
+  /// data absolutely (that is,
+  /// in reference to the Earth's coordinate frame) or using some arbitrary
+  /// frame determined
+  /// by the device.
+  /// See
+  /// [Orientation and motion data explained](https://developer.mozilla.org/en-US/docs/Web/API/Device_orientation_events/Orientation_and_motion_data_explained)
+  /// for details.
   external bool get absolute;
 }
 extension type DeviceOrientationEventInit._(JSObject _)
@@ -47,14 +83,14 @@ extension type DeviceOrientationEventInit._(JSObject _)
     bool absolute,
   });
 
-  external set alpha(num? value);
   external num? get alpha;
-  external set beta(num? value);
+  external set alpha(num? value);
   external num? get beta;
-  external set gamma(num? value);
+  external set beta(num? value);
   external num? get gamma;
-  external set absolute(bool value);
+  external set gamma(num? value);
   external bool get absolute;
+  external set absolute(bool value);
 }
 
 /// The **`DeviceMotionEventAcceleration`** interface of the
@@ -66,8 +102,25 @@ extension type DeviceOrientationEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEventAcceleration).
 extension type DeviceMotionEventAcceleration._(JSObject _) implements JSObject {
+  /// The **`x`** read-only property of the [DeviceMotionEventAcceleration]
+  /// interface indicates the amount of acceleration that occurred along the X
+  /// axis in a
+  /// [`DeviceMotionEventAcceleration`](https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEventAcceleration)
+  /// object.
   external num? get x;
+
+  /// The **`y`** read-only property of the [DeviceMotionEventAcceleration]
+  /// interface indicates the amount of acceleration that occurred along the Y
+  /// axis in a
+  /// [`DeviceMotionEventAcceleration`](https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEventAcceleration)
+  /// object.
   external num? get y;
+
+  /// The **`z`** read-only property of the [DeviceMotionEventAcceleration]
+  /// interface indicates the amount of acceleration that occurred along the Z
+  /// axis in a
+  /// [`DeviceMotionEventAcceleration`](https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEventAcceleration)
+  /// object.
   external num? get z;
 }
 
@@ -80,8 +133,19 @@ extension type DeviceMotionEventAcceleration._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/DeviceMotionEventRotationRate).
 extension type DeviceMotionEventRotationRate._(JSObject _) implements JSObject {
+  /// The **`alpha`** read-only property of the [DeviceMotionEventRotationRate]
+  /// interface indicates the rate of rotation around the Z axis, in degrees per
+  /// second.
   external num? get alpha;
+
+  /// The **`beta`** read-only property of the [DeviceMotionEventRotationRate]
+  /// interface indicates the rate of rotation around the X axis, in degrees per
+  /// second.
   external num? get beta;
+
+  /// The **`gamma`** read-only property of the [DeviceMotionEventRotationRate]
+  /// interface indicates the rate of rotation around the Y axis, in degrees per
+  /// second.
   external num? get gamma;
 }
 
@@ -103,9 +167,65 @@ extension type DeviceMotionEvent._(JSObject _) implements Event, JSObject {
   ]);
 
   external static JSPromise<JSString> requestPermission();
+
+  /// The **`acceleration`** read-only property of the [DeviceMotionEvent]
+  /// interface returns the amount of acceleration recorded by
+  /// the device, in [meters per second squared
+  /// (m/s²)](https://en.wikipedia.org/wiki/Meter_per_second_squared).
+  /// The acceleration value does not include the effect of
+  /// the gravity force, in contrast to
+  /// [DeviceMotionEvent.accelerationIncludingGravity].
+  ///
+  /// > **Note:** If the hardware doesn't know how to remove gravity from the
+  /// > acceleration data, this value may not be present in the
+  /// > [DeviceMotionEvent]. In this situation, you'll need to use
+  /// > [DeviceMotionEvent.accelerationIncludingGravity] instead.
   external DeviceMotionEventAcceleration? get acceleration;
+
+  /// The **`accelerationIncludingGravity`** read-only property of the
+  /// [DeviceMotionEvent] interface returns the
+  /// amount of acceleration recorded by the device, in [meters per second
+  /// squared (m/s²)](https://en.wikipedia.org/wiki/Meter_per_second_squared).
+  /// Unlike [DeviceMotionEvent.acceleration]
+  /// which compensates for the influence of gravity, its value is the sum of
+  /// the acceleration
+  /// of the device as induced by the user and an acceleration equal and
+  /// opposite to that
+  /// caused by gravity. In other words, it measures the
+  /// [g-force](https://en.wikipedia.org/wiki/G-Force). In practice, this value
+  /// represents
+  /// the raw data measured by an
+  /// [accelerometer](https://en.wikipedia.org/wiki/Accelerometer).
+  ///
+  /// This value is not typically as useful as [DeviceMotionEvent.acceleration],
+  /// but may be the only value available on devices that aren't able to remove
+  /// gravity from
+  /// the acceleration data, such as on devices that don't have a gyroscope.
+  ///
+  /// > **Note:** `accelerationIncludingGravity`'s name can be misleading. This
+  /// > property represents acceleration including _the effects of_ gravity. For
+  /// > example, if a device is lying flat on a horizontal surface with the
+  /// > screen pointing up, gravity would be -9.8 along the Z axis, while
+  /// > `acceleration.z` would be 0 and `accelerationIncludingGravity.z` would
+  /// > be 9.8. Similarly, if a device is in free fall with its screen
+  /// > horizontal and pointing up, gravity would be -9.8 along the Z axis,
+  /// > while `acceleration.z` would be -9.8 and
+  /// > `accelerationIncludingGravity.z` would be 0.
   external DeviceMotionEventAcceleration? get accelerationIncludingGravity;
+
+  /// The **`rotationRate`** read-only property of the [DeviceMotionEvent]
+  /// interface returns the rate at which the device is rotating around each of
+  /// its axes in degrees per
+  /// second.
+  ///
+  /// > **Note:** If the hardware isn't capable of providing this
+  /// > information, this property returns `null`.
   external DeviceMotionEventRotationRate? get rotationRate;
+
+  /// The **`interval`** read-only property of the [DeviceMotionEvent] interface
+  /// returns the interval, in milliseconds, at which data is obtained from the
+  /// underlying
+  /// hardware. You can use this to determine the granularity of motion events.
   external num get interval;
 }
 extension type DeviceMotionEventAccelerationInit._(JSObject _)
@@ -116,12 +236,12 @@ extension type DeviceMotionEventAccelerationInit._(JSObject _)
     num? z,
   });
 
-  external set x(num? value);
   external num? get x;
-  external set y(num? value);
+  external set x(num? value);
   external num? get y;
-  external set z(num? value);
+  external set y(num? value);
   external num? get z;
+  external set z(num? value);
 }
 extension type DeviceMotionEventRotationRateInit._(JSObject _)
     implements JSObject {
@@ -131,12 +251,12 @@ extension type DeviceMotionEventRotationRateInit._(JSObject _)
     num? gamma,
   });
 
-  external set alpha(num? value);
   external num? get alpha;
-  external set beta(num? value);
+  external set alpha(num? value);
   external num? get beta;
-  external set gamma(num? value);
+  external set beta(num? value);
   external num? get gamma;
+  external set gamma(num? value);
 }
 extension type DeviceMotionEventInit._(JSObject _)
     implements EventInit, JSObject {
@@ -150,13 +270,13 @@ extension type DeviceMotionEventInit._(JSObject _)
     num interval,
   });
 
-  external set acceleration(DeviceMotionEventAccelerationInit value);
   external DeviceMotionEventAccelerationInit get acceleration;
+  external set acceleration(DeviceMotionEventAccelerationInit value);
+  external DeviceMotionEventAccelerationInit get accelerationIncludingGravity;
   external set accelerationIncludingGravity(
       DeviceMotionEventAccelerationInit value);
-  external DeviceMotionEventAccelerationInit get accelerationIncludingGravity;
-  external set rotationRate(DeviceMotionEventRotationRateInit value);
   external DeviceMotionEventRotationRateInit get rotationRate;
-  external set interval(num value);
+  external set rotationRate(DeviceMotionEventRotationRateInit value);
   external num get interval;
+  external set interval(num value);
 }
diff --git a/lib/src/dom/payment_request.dart b/lib/src/dom/payment_request.dart
index d48976bf..a255ac12 100644
--- a/lib/src/dom/payment_request.dart
+++ b/lib/src/dom/payment_request.dart
@@ -100,9 +100,17 @@ extension type PaymentRequest._(JSObject _) implements EventTarget, JSObject {
   /// Payment
   /// Request API (or even provide instructions for paying by mail or by phone).
   external JSPromise<JSBoolean> canMakePayment();
+
+  /// The **`id`** read-only attribute of the
+  /// [PaymentRequest] interface returns a unique identifier for a particular
+  /// [PaymentRequest] instance.
+  ///
+  /// When constructing an instance of the [PaymentRequest], you are able to
+  /// supply an custom id. If none is provided, the browser automatically sets
+  /// the id value to a UUID.
   external String get id;
-  external set onpaymentmethodchange(EventHandler value);
   external EventHandler get onpaymentmethodchange;
+  external set onpaymentmethodchange(EventHandler value);
 }
 extension type PaymentMethodData._(JSObject _) implements JSObject {
   external factory PaymentMethodData({
@@ -110,10 +118,10 @@ extension type PaymentMethodData._(JSObject _) implements JSObject {
     JSObject data,
   });
 
-  external set supportedMethods(String value);
   external String get supportedMethods;
-  external set data(JSObject value);
+  external set supportedMethods(String value);
   external JSObject get data;
+  external set data(JSObject value);
 }
 extension type PaymentCurrencyAmount._(JSObject _) implements JSObject {
   external factory PaymentCurrencyAmount({
@@ -121,10 +129,10 @@ extension type PaymentCurrencyAmount._(JSObject _) implements JSObject {
     required String value,
   });
 
-  external set currency(String value);
   external String get currency;
-  external set value(String value);
+  external set currency(String value);
   external String get value;
+  external set value(String value);
 }
 extension type PaymentDetailsBase._(JSObject _) implements JSObject {
   external factory PaymentDetailsBase({
@@ -132,10 +140,10 @@ extension type PaymentDetailsBase._(JSObject _) implements JSObject {
     JSArray<PaymentDetailsModifier> modifiers,
   });
 
-  external set displayItems(JSArray<PaymentItem> value);
   external JSArray<PaymentItem> get displayItems;
-  external set modifiers(JSArray<PaymentDetailsModifier> value);
+  external set displayItems(JSArray<PaymentItem> value);
   external JSArray<PaymentDetailsModifier> get modifiers;
+  external set modifiers(JSArray<PaymentDetailsModifier> value);
 }
 extension type PaymentDetailsInit._(JSObject _)
     implements PaymentDetailsBase, JSObject {
@@ -146,10 +154,10 @@ extension type PaymentDetailsInit._(JSObject _)
     required PaymentItem total,
   });
 
-  external set id(String value);
   external String get id;
-  external set total(PaymentItem value);
+  external set id(String value);
   external PaymentItem get total;
+  external set total(PaymentItem value);
 }
 extension type PaymentDetailsUpdate._(JSObject _)
     implements PaymentDetailsBase, JSObject {
@@ -160,10 +168,10 @@ extension type PaymentDetailsUpdate._(JSObject _)
     JSObject paymentMethodErrors,
   });
 
-  external set total(PaymentItem value);
   external PaymentItem get total;
-  external set paymentMethodErrors(JSObject value);
+  external set total(PaymentItem value);
   external JSObject get paymentMethodErrors;
+  external set paymentMethodErrors(JSObject value);
 }
 extension type PaymentDetailsModifier._(JSObject _) implements JSObject {
   external factory PaymentDetailsModifier({
@@ -173,14 +181,14 @@ extension type PaymentDetailsModifier._(JSObject _) implements JSObject {
     JSObject data,
   });
 
-  external set supportedMethods(String value);
   external String get supportedMethods;
-  external set total(PaymentItem value);
+  external set supportedMethods(String value);
   external PaymentItem get total;
-  external set additionalDisplayItems(JSArray<PaymentItem> value);
+  external set total(PaymentItem value);
   external JSArray<PaymentItem> get additionalDisplayItems;
-  external set data(JSObject value);
+  external set additionalDisplayItems(JSArray<PaymentItem> value);
   external JSObject get data;
+  external set data(JSObject value);
 }
 extension type PaymentItem._(JSObject _) implements JSObject {
   external factory PaymentItem({
@@ -189,18 +197,18 @@ extension type PaymentItem._(JSObject _) implements JSObject {
     bool pending,
   });
 
-  external set label(String value);
   external String get label;
-  external set amount(PaymentCurrencyAmount value);
+  external set label(String value);
   external PaymentCurrencyAmount get amount;
-  external set pending(bool value);
+  external set amount(PaymentCurrencyAmount value);
   external bool get pending;
+  external set pending(bool value);
 }
 extension type PaymentCompleteDetails._(JSObject _) implements JSObject {
   external factory PaymentCompleteDetails({JSObject? data});
 
-  external set data(JSObject? value);
   external JSObject? get data;
+  external set data(JSObject? value);
 }
 
 /// The **`PaymentResponse`** interface of the
@@ -241,8 +249,31 @@ extension type PaymentResponse._(JSObject _) implements EventTarget, JSObject {
   /// declined credit
   /// cards.
   external JSPromise<JSAny?> retry([PaymentValidationErrors errorFields]);
+
+  /// The **`requestId`** read-only property of the
+  /// [PaymentResponse] interface returns the free-form identifier supplied by
+  /// the `PaymentResponse()` constructor by details.id.
   external String get requestId;
+
+  /// The **`methodName`** read-only
+  /// property of the [PaymentResponse] interface returns a string uniquely
+  /// identifying the payment handler selected by the user.
+  ///
+  /// This string may be either
+  /// one of the standardized payment method identifiers or a URL used by the
+  /// payment handler
+  /// to process payments.
   external String get methodName;
+
+  /// The **`details`** read-only property of the
+  /// [PaymentResponse] interface returns a JSON-serializable object that
+  /// provides a payment method specific message used by the merchant to process
+  /// the
+  /// transaction and determine a successful funds transfer.
+  ///
+  /// This data is returned by the payment app that satisfies the payment
+  /// request. Developers need to consult whomever controls the URL for the
+  /// expected shape of the details object.
   external JSObject get details;
 }
 extension type PaymentValidationErrors._(JSObject _) implements JSObject {
@@ -251,10 +282,10 @@ extension type PaymentValidationErrors._(JSObject _) implements JSObject {
     JSObject paymentMethod,
   });
 
-  external set error(String value);
   external String get error;
-  external set paymentMethod(JSObject value);
+  external set error(String value);
   external JSObject get paymentMethod;
+  external set paymentMethod(JSObject value);
 }
 
 /// The **`PaymentMethodChangeEvent`** interface of the
@@ -275,7 +306,24 @@ extension type PaymentMethodChangeEvent._(JSObject _)
     PaymentMethodChangeEventInit eventInitDict,
   ]);
 
+  /// The read-only **`methodName`** property of the [PaymentMethodChangeEvent]
+  /// interface is a string which
+  /// uniquely identifies the payment handler currently selected by the user.
+  /// The
+  /// payment handler may be a payment technology, such as Apple Pay or Android
+  /// Pay, and each
+  /// payment handler may support multiple payment methods; changes to the
+  /// payment method
+  /// within the payment handler are described by the
+  /// `PaymentMethodChangeEvent`.
   external String get methodName;
+
+  /// The read-only **`methodDetails`** property of the
+  /// [PaymentMethodChangeEvent] interface is an object
+  /// containing any data the payment handler may provide to describe the change
+  /// the user
+  /// has made to their payment method. The value is `null` if no details
+  /// are available.
   external JSObject? get methodDetails;
 }
 extension type PaymentMethodChangeEventInit._(JSObject _)
@@ -288,10 +336,10 @@ extension type PaymentMethodChangeEventInit._(JSObject _)
     JSObject? methodDetails,
   });
 
-  external set methodName(String value);
   external String get methodName;
-  external set methodDetails(JSObject? value);
+  external set methodName(String value);
   external JSObject? get methodDetails;
+  external set methodDetails(JSObject? value);
 }
 
 /// The **`PaymentRequestUpdateEvent`** interface is used for events sent to a
diff --git a/lib/src/dom/performance_timeline.dart b/lib/src/dom/performance_timeline.dart
index 6112fb4c..9a7f2129 100644
--- a/lib/src/dom/performance_timeline.dart
+++ b/lib/src/dom/performance_timeline.dart
@@ -54,9 +54,28 @@ extension type PerformanceEntry._(JSObject _) implements JSObject {
   /// [PerformanceEntry] object.
   external JSObject toJSON();
   external int get id;
+
+  /// The read-only **`name`** property of the [PerformanceEntry] interface is a
+  /// string representing the name for a performance entry. It acts as an
+  /// identifier, but it does not have to be unique. The value depends on the
+  /// subclass.
   external String get name;
+
+  /// The read-only **`entryType`** property returns a string representing the
+  /// type of performance metric that this entry represents.
+  ///
+  /// All supported `entryTypes` are available using the static property
+  /// [PerformanceObserver.supportedEntryTypes_static].
   external String get entryType;
+
+  /// The read-only **`startTime`** property returns the first  recorded for
+  /// this . The meaning of this property depends on the value of this entry's
+  /// [PerformanceEntry.entryType].
   external DOMHighResTimeStamp get startTime;
+
+  /// The read-only **`duration`** property returns a  that is the duration of
+  /// the . The meaning of this property depends on the value of this entry's
+  /// [PerformanceEntry.entryType].
   external DOMHighResTimeStamp get duration;
   external int get navigationId;
 }
@@ -100,8 +119,8 @@ extension type PerformanceObserverCallbackOptions._(JSObject _)
   external factory PerformanceObserverCallbackOptions(
       {int droppedEntriesCount});
 
-  external set droppedEntriesCount(int value);
   external int get droppedEntriesCount;
+  external set droppedEntriesCount(int value);
 }
 extension type PerformanceObserverInit._(JSObject _) implements JSObject {
   external factory PerformanceObserverInit({
@@ -110,12 +129,12 @@ extension type PerformanceObserverInit._(JSObject _) implements JSObject {
     bool buffered,
   });
 
-  external set entryTypes(JSArray<JSString> value);
   external JSArray<JSString> get entryTypes;
-  external set type(String value);
+  external set entryTypes(JSArray<JSString> value);
   external String get type;
-  external set buffered(bool value);
+  external set type(String value);
   external bool get buffered;
+  external set buffered(bool value);
 }
 
 /// The **`PerformanceObserverEntryList`** interface is a list of
diff --git a/lib/src/dom/permissions.dart b/lib/src/dom/permissions.dart
index e03378ba..8ba2b585 100644
--- a/lib/src/dom/permissions.dart
+++ b/lib/src/dom/permissions.dart
@@ -35,8 +35,8 @@ extension type Permissions._(JSObject _) implements JSObject {
 extension type PermissionDescriptor._(JSObject _) implements JSObject {
   external factory PermissionDescriptor({required String name});
 
-  external set name(String value);
   external String get name;
+  external set name(String value);
 }
 
 /// The **`PermissionStatus`** interface of the
@@ -49,10 +49,17 @@ extension type PermissionDescriptor._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/PermissionStatus).
 extension type PermissionStatus._(JSObject _) implements EventTarget, JSObject {
+  /// The **`state`** read-only property of the
+  /// [PermissionStatus] interface returns the state of a requested permission.
+  /// This property returns one of `'granted'`, `'denied'`, or
+  /// `'prompt'`.
   external PermissionState get state;
+
+  /// The **`name`** read-only property of the [PermissionStatus] interface
+  /// returns the name of a requested permission.
   external String get name;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
+  external set onchange(EventHandler value);
 }
 extension type PermissionSetParameters._(JSObject _) implements JSObject {
   external factory PermissionSetParameters({
@@ -60,8 +67,8 @@ extension type PermissionSetParameters._(JSObject _) implements JSObject {
     required PermissionState state,
   });
 
-  external set descriptor(PermissionDescriptor value);
   external PermissionDescriptor get descriptor;
-  external set state(PermissionState value);
+  external set descriptor(PermissionDescriptor value);
   external PermissionState get state;
+  external set state(PermissionState value);
 }
diff --git a/lib/src/dom/pointerevents.dart b/lib/src/dom/pointerevents.dart
index 51685df0..46e289fe 100644
--- a/lib/src/dom/pointerevents.dart
+++ b/lib/src/dom/pointerevents.dart
@@ -63,34 +63,34 @@ extension type PointerEventInit._(JSObject _)
     JSArray<PointerEvent> predictedEvents,
   });
 
-  external set pointerId(int value);
   external int get pointerId;
-  external set width(num value);
+  external set pointerId(int value);
   external num get width;
-  external set height(num value);
+  external set width(num value);
   external num get height;
-  external set pressure(num value);
+  external set height(num value);
   external num get pressure;
-  external set tangentialPressure(num value);
+  external set pressure(num value);
   external num get tangentialPressure;
-  external set tiltX(int value);
+  external set tangentialPressure(num value);
   external int get tiltX;
-  external set tiltY(int value);
+  external set tiltX(int value);
   external int get tiltY;
-  external set twist(int value);
+  external set tiltY(int value);
   external int get twist;
-  external set altitudeAngle(num value);
+  external set twist(int value);
   external num get altitudeAngle;
-  external set azimuthAngle(num value);
+  external set altitudeAngle(num value);
   external num get azimuthAngle;
-  external set pointerType(String value);
+  external set azimuthAngle(num value);
   external String get pointerType;
-  external set isPrimary(bool value);
+  external set pointerType(String value);
   external bool get isPrimary;
-  external set coalescedEvents(JSArray<PointerEvent> value);
+  external set isPrimary(bool value);
   external JSArray<PointerEvent> get coalescedEvents;
-  external set predictedEvents(JSArray<PointerEvent> value);
+  external set coalescedEvents(JSArray<PointerEvent> value);
   external JSArray<PointerEvent> get predictedEvents;
+  external set predictedEvents(JSArray<PointerEvent> value);
 }
 
 /// The **`PointerEvent`** interface represents the state of a DOM event
@@ -152,16 +152,151 @@ extension type PointerEvent._(JSObject _) implements MouseEvent, JSObject {
   /// For an illustration of predicted events, see
   /// [Figure 8 in the specification](https://w3c.github.io/pointerevents/#figure_predicted).
   external JSArray<PointerEvent> getPredictedEvents();
+
+  /// The **`pointerId`** read-only property of the
+  /// [PointerEvent] interface is an identifier assigned to a given pointer
+  /// event. The identifier is unique, being different from the identifiers of
+  /// all other
+  /// active pointer events. Since the value may be randomly generated, it is
+  /// not guaranteed
+  /// to convey any particular meaning.
   external int get pointerId;
+
+  /// The **`width`** read-only property of the
+  /// [PointerEvent] interface represents the width of the pointer's contact
+  /// geometry along the x-axis, measured in CSS pixels. Depending on the source
+  /// of the
+  /// pointer device (such as a finger), for a given pointer, each event may
+  /// produce a
+  /// different value.
+  ///
+  /// If the input hardware cannot report the contact geometry to the browser,
+  /// the width
+  /// defaults to `1`.
   external num get width;
+
+  /// The **`height`** read-only property of the
+  /// [PointerEvent] interface represents the height of the pointer's contact
+  /// geometry, along the y-axis (in CSS pixels). Depending on the source of the
+  /// pointer
+  /// device (for example a finger), for a given pointer, each event may produce
+  /// a different
+  /// value.
+  ///
+  /// If the input hardware cannot report the contact geometry to the browser,
+  /// the height
+  /// defaults to `1`.
   external num get height;
+
+  /// The **`pressure`** read-only property of the
+  /// [PointerEvent] interface indicates the normalized pressure of the pointer
+  /// input.
   external num get pressure;
+
+  /// The **`tangentialPressure`** read-only property of the
+  /// [PointerEvent] interface represents the normalized tangential pressure of
+  /// the pointer input (also known as barrel pressure or
+  /// [cylinder stress](https://en.wikipedia.org/wiki/Cylinder_stress)).
   external num get tangentialPressure;
+
+  /// The **`tiltX`** read-only property of the
+  /// [PointerEvent] interface is the angle (in degrees) between the _Y-Z
+  /// plane_ of the pointer and the screen. This property is typically only
+  /// useful for a
+  /// pen/stylus pointer type.
+  ///
+  /// For an illustration of this property see
+  /// [Figure 2 in the specification](https://w3c.github.io/pointerevents/#dom-pointerevent-tiltx).
   external int get tiltX;
+
+  /// The **`tiltY`** read-only property of the
+  /// [PointerEvent] interface is the angle (in degrees) between the _X-Z
+  /// plane_ of the pointer and the screen. This property is typically only
+  /// useful for a
+  /// pen/stylus pointer type.
+  ///
+  /// For an illustration of this property, see
+  /// [Figure 3 in the specification](https://w3c.github.io/pointerevents/#dom-pointerevent-tilty).
   external int get tiltY;
+
+  /// The **`twist`** read-only property of the
+  /// [PointerEvent] interface represents the clockwise rotation of the pointer
+  /// (e.g., pen stylus) around its major axis, in degrees.
   external int get twist;
+
+  /// The **`altitudeAngle`** read-only property of the [PointerEvent] interface
+  /// represents the angle between a transducer (a pointer or stylus) axis and
+  /// the X-Y plane of a device screen.
+  /// The altitude angle describes whether the transducer is perpendicular to
+  /// the screen, parallel, or at some angle in between.
+  ///
+  /// Depending on the specific hardware and platform, user agents will likely
+  /// only receive one set of values for the transducer orientation relative to
+  /// the screen plane — either [PointerEvent.tiltx] and [PointerEvent.tilty] or
+  /// `altitudeAngle` and [PointerEvent.azimuthAngle].
+  ///
+  /// ![The azimuth angle of a pointer compared to the altitude angle](./azimuth_altitude_angles.svg)
+  ///
+  /// For an additional illustration of this property, see
+  /// [Figure 4 in the specification](https://w3c.github.io/pointerevents/#figure_altitudeAngle).
   external num get altitudeAngle;
+
+  /// The **`azimuthAngle`** read-only property of the [PointerEvent] interface
+  /// represents the angle between the Y-Z plane and the plane containing both
+  /// the transducer (pointer or stylus) axis and the Y axis.
+  ///
+  /// Depending on the specific hardware and platform, user agents will likely
+  /// only receive one set of values for the transducer orientation relative to
+  /// the screen plane — either [PointerEvent.tiltx] and [PointerEvent.tilty] or
+  /// [PointerEvent.altitudeAngle] and `azimuthAngle`.
+  ///
+  /// ![The azimuth angle of a pointer compared to the altitude angle](azimuth_altitude_angles.svg)
+  ///
+  /// For an additional illustration of this property, see
+  /// [Figure 5 in the specification](https://w3c.github.io/pointerevents/#figure_azimuthAngle).
   external num get azimuthAngle;
+
+  /// The **`pointerType`** read-only property of the
+  /// [PointerEvent] interface indicates the device type (mouse, pen, or touch)
+  /// that caused a given pointer event.
   external String get pointerType;
+
+  /// The **`isPrimary`** read-only property of the
+  /// [PointerEvent] interface indicates whether or not the pointer device that
+  /// created the event is the _primary_ pointer. It returns `true` if the
+  /// pointer that caused the event to be fired is the primary one and returns
+  /// `false` otherwise.
+  ///
+  /// In a multi-pointer scenario (such as a touch screen that supports more
+  /// than one touch
+  /// point), this property is used to identify a _master pointer_ among the set
+  /// of
+  /// active pointers for each pointer type. Only a primary pointer will produce
+  /// _compatibility mouse events_. Authors who desire only single-pointer
+  /// interaction
+  /// can achieve that by ignoring non-primary pointers.
+  ///
+  /// A pointer is considered primary if the pointer represents a mouse device.
+  /// A pointer
+  /// representing pen input is considered the primary pen input if its
+  /// [Element.pointerdown_event] event was dispatched when no other active
+  /// pointers representing
+  /// pen input existed. A pointer representing touch input is considered the
+  /// primary touch
+  /// input if its [Element.pointerdown_event] event was dispatched when no
+  /// other active pointers
+  /// representing touch input existed.
+  ///
+  /// When two or more pointer device types are being used concurrently,
+  /// multiple pointers
+  /// (one for each [PointerEvent.pointerType]) are considered
+  /// primary. For example, a touch contact and a mouse cursor moved
+  /// simultaneously will
+  /// produce pointers that are both considered primary. If there are multiple
+  /// primary
+  /// pointers, these pointers will all produce _compatibility mouse events_
+  /// (see
+  /// [Pointer_events] for more information about pointer, mouse and touch
+  /// interaction).
   external bool get isPrimary;
 }
diff --git a/lib/src/dom/push_api.dart b/lib/src/dom/push_api.dart
index d925b7ea..7ad43ad8 100644
--- a/lib/src/dom/push_api.dart
+++ b/lib/src/dom/push_api.dart
@@ -27,8 +27,8 @@ extension type PushPermissionDescriptor._(JSObject _)
     bool userVisibleOnly,
   });
 
-  external set userVisibleOnly(bool value);
   external bool get userVisibleOnly;
+  external set userVisibleOnly(bool value);
 }
 
 /// The **`PushManager`** interface of the
@@ -90,7 +90,15 @@ extension type PushManager._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/PushSubscriptionOptions).
 extension type PushSubscriptionOptions._(JSObject _) implements JSObject {
+  /// The **`userVisibleOnly`** read-only property of the
+  /// [PushSubscriptionOptions] interface indicates if the returned push
+  /// subscription will only be used for messages whose effect is made visible
+  /// to the user.
   external bool get userVisibleOnly;
+
+  /// The **`applicationServerKey`** read-only property of the
+  /// [PushSubscriptionOptions] interface contains the public key used by the
+  /// push server.
   external JSArrayBuffer? get applicationServerKey;
 }
 extension type PushSubscriptionOptionsInit._(JSObject _) implements JSObject {
@@ -99,10 +107,10 @@ extension type PushSubscriptionOptionsInit._(JSObject _) implements JSObject {
     JSAny? applicationServerKey,
   });
 
-  external set userVisibleOnly(bool value);
   external bool get userVisibleOnly;
-  external set applicationServerKey(JSAny? value);
+  external set userVisibleOnly(bool value);
   external JSAny? get applicationServerKey;
+  external set applicationServerKey(JSAny? value);
 }
 
 /// The `PushSubscription` interface of the
@@ -132,8 +140,30 @@ extension type PushSubscription._(JSObject _) implements JSObject {
   /// properties,
   /// providing a useful shortcut.
   external PushSubscriptionJSON toJSON();
+
+  /// The **`endpoint`** read-only property of the
+  /// [PushSubscription] interface returns a string containing
+  /// the endpoint associated with the push subscription.
+  ///
+  /// The endpoint takes the form of a custom URL pointing to a push server,
+  /// which can be
+  /// used to send a push message to the particular service worker instance that
+  /// subscribed to
+  /// the push service. For this reason, it is a good idea to keep your endpoint
+  /// a secret, so
+  /// others do not hijack it and abuse the push functionality.
   external String get endpoint;
+
+  /// The **`expirationTime`** read-only property of the
+  /// [PushSubscription] interface returns a [DOMHighResTimeStamp]
+  /// of the subscription expiration time associated with the push subscription,
+  /// if there is
+  /// one, or `null` otherwise.
   external EpochTimeStamp? get expirationTime;
+
+  /// The **`options`** read-only property
+  /// of the [PushSubscription] interface is an object containing the options
+  /// used to create the subscription.
   external PushSubscriptionOptions get options;
 }
 extension type PushSubscriptionJSON._(JSObject _) implements JSObject {
@@ -143,12 +173,12 @@ extension type PushSubscriptionJSON._(JSObject _) implements JSObject {
     JSObject keys,
   });
 
-  external set endpoint(String value);
   external String get endpoint;
-  external set expirationTime(EpochTimeStamp? value);
+  external set endpoint(String value);
   external EpochTimeStamp? get expirationTime;
-  external set keys(JSObject value);
+  external set expirationTime(EpochTimeStamp? value);
   external JSObject get keys;
+  external set keys(JSObject value);
 }
 
 /// The **`PushMessageData`** interface of the
@@ -206,6 +236,9 @@ extension type PushEvent._(JSObject _) implements ExtendableEvent, JSObject {
     PushEventInit eventInitDict,
   ]);
 
+  /// The `data` read-only property of the **`PushEvent`** interface returns a
+  /// reference to a [PushMessageData] object containing data sent to the
+  /// [PushSubscription].
   external PushMessageData? get data;
 }
 extension type PushEventInit._(JSObject _)
@@ -217,8 +250,8 @@ extension type PushEventInit._(JSObject _)
     PushMessageDataInit data,
   });
 
-  external set data(PushMessageDataInit value);
   external PushMessageDataInit get data;
+  external set data(PushMessageDataInit value);
 }
 extension type PushSubscriptionChangeEvent._(JSObject _)
     implements ExtendableEvent, JSObject {
@@ -240,8 +273,8 @@ extension type PushSubscriptionChangeEventInit._(JSObject _)
     PushSubscription oldSubscription,
   });
 
-  external set newSubscription(PushSubscription value);
   external PushSubscription get newSubscription;
-  external set oldSubscription(PushSubscription value);
+  external set newSubscription(PushSubscription value);
   external PushSubscription get oldSubscription;
+  external set oldSubscription(PushSubscription value);
 }
diff --git a/lib/src/dom/reporting.dart b/lib/src/dom/reporting.dart
index d1b3d7b3..db59bd38 100644
--- a/lib/src/dom/reporting.dart
+++ b/lib/src/dom/reporting.dart
@@ -59,8 +59,19 @@ extension type ReportBody._(JSObject _) implements JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Report).
 extension type Report._(JSObject _) implements JSObject {
   external JSObject toJSON();
+
+  /// The **`type`** read-only property of the [Report]
+  /// interface returns the type of report generated, e.g. `deprecation` or
+  /// `intervention`.
   external String get type;
+
+  /// The **`url`** read-only property of the [Report]
+  /// interface returns the URL of the document that generated the report.
   external String get url;
+
+  /// The **`body`** read-only property of the [Report]
+  /// interface returns the body of the report, which is a `ReportBody` object
+  /// containing the detailed report information.
   external ReportBody? get body;
 }
 
@@ -107,10 +118,10 @@ extension type ReportingObserverOptions._(JSObject _) implements JSObject {
     bool buffered,
   });
 
-  external set types(JSArray<JSString> value);
   external JSArray<JSString> get types;
-  external set buffered(bool value);
+  external set types(JSArray<JSString> value);
   external bool get buffered;
+  external set buffered(bool value);
 }
 extension type GenerateTestReportParameters._(JSObject _) implements JSObject {
   external factory GenerateTestReportParameters({
@@ -118,8 +129,8 @@ extension type GenerateTestReportParameters._(JSObject _) implements JSObject {
     String group,
   });
 
-  external set message(String value);
   external String get message;
-  external set group(String value);
+  external set message(String value);
   external String get group;
+  external set group(String value);
 }
diff --git a/lib/src/dom/resize_observer.dart b/lib/src/dom/resize_observer.dart
index f09d8a93..a90a5e63 100644
--- a/lib/src/dom/resize_observer.dart
+++ b/lib/src/dom/resize_observer.dart
@@ -21,8 +21,8 @@ typedef ResizeObserverBoxOptions = String;
 extension type ResizeObserverOptions._(JSObject _) implements JSObject {
   external factory ResizeObserverOptions({ResizeObserverBoxOptions box});
 
-  external set box(ResizeObserverBoxOptions value);
   external ResizeObserverBoxOptions get box;
+  external set box(ResizeObserverBoxOptions value);
 }
 
 /// The **`ResizeObserver`** interface reports changes to the dimensions of an
@@ -70,10 +70,35 @@ extension type ResizeObserver._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserverEntry).
 extension type ResizeObserverEntry._(JSObject _) implements JSObject {
+  /// The **`target`** read-only property of the
+  /// [ResizeObserverEntry] interface returns a reference to the
+  /// [Element] or [SVGElement] that is being observed.
   external Element get target;
+
+  /// The `contentRect` read-only property of the
+  /// [ResizeObserverEntry] interface returns a [DOMRectReadOnly]
+  /// object containing the new size of the observed element when the callback
+  /// is run. Note
+  /// that this is better supported than [ResizeObserverEntry.borderBoxSize] or
+  /// [ResizeObserverEntry.contentBoxSize], but it is left over from an earlier
+  /// implementation of the Resize Observer API, is still included in the spec
+  /// for web compat
+  /// reasons, and may be deprecated in future versions.
   external DOMRectReadOnly get contentRect;
+
+  /// The **`borderBoxSize`** read-only property of
+  /// the [ResizeObserverEntry] interface returns an array containing the new
+  /// border box size of the observed element when the callback is run.
   external JSArray<ResizeObserverSize> get borderBoxSize;
+
+  /// The **`contentBoxSize`** read-only property of
+  /// the [ResizeObserverEntry] interface returns an array containing the new
+  /// content box size of the observed element when the callback is run.
   external JSArray<ResizeObserverSize> get contentBoxSize;
+
+  /// The **`devicePixelContentBoxSize`** read-only property of
+  /// the [ResizeObserverEntry] interface returns an array containing the size
+  /// in device pixels of the observed element when the callback is run.
   external JSArray<ResizeObserverSize> get devicePixelContentBoxSize;
 }
 
@@ -91,6 +116,25 @@ extension type ResizeObserverEntry._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserverSize).
 extension type ResizeObserverSize._(JSObject _) implements JSObject {
+  /// The **`inlineSize`** read-only property of the [ResizeObserverSize]
+  /// interface returns the length of the observed element's border box in the
+  /// inline dimension. For boxes with a horizontal , this is the horizontal
+  /// dimension, or width; if the writing-mode is vertical, this is the vertical
+  /// dimension, or height.
+  ///
+  /// > **Note:** For more explanation of writing modes and block and inline
+  /// > dimensions, read
+  /// > [Handling different text directions](https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Handling_different_text_directions).
   external num get inlineSize;
+
+  /// The **`blockSize`** read-only property of the [ResizeObserverSize]
+  /// interface returns the length of the observed element's border box in the
+  /// block dimension. For boxes with a horizontal , this is the vertical
+  /// dimension, or height; if the writing-mode is vertical, this is the
+  /// horizontal dimension, or width.
+  ///
+  /// > **Note:** For more explanation of writing modes and block and inline
+  /// > dimensions, read
+  /// > [Handling different text directions](https://developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Handling_different_text_directions).
   external num get blockSize;
 }
diff --git a/lib/src/dom/resource_timing.dart b/lib/src/dom/resource_timing.dart
index 0517fd8a..31194b8f 100644
--- a/lib/src/dom/resource_timing.dart
+++ b/lib/src/dom/resource_timing.dart
@@ -35,27 +35,199 @@ extension type PerformanceResourceTiming._(JSObject _)
   /// a ; it returns a JSON representation of the [PerformanceResourceTiming]
   /// object.
   external JSObject toJSON();
+
+  /// The **`initiatorType`** read-only property is a string representing web
+  /// platform feature that initiated the resource load.
+  ///
+  /// > **Note:** This property does not represent the type of content fetched.
+  /// > A `.css` file can be fetched using a `link` element leading to an
+  /// > `initiatorType` of `link`. When loading images using `background: url()`
+  /// > in a CSS file, the `initiatorType` will be `css` and not `img`.
   external String get initiatorType;
+
+  /// The **`deliveryType`** read-only property is a string indicating how the
+  /// resource was delivered — for example from the cache or from a navigational
+  /// prefetch.
   external String get deliveryType;
+
+  /// The **`nextHopProtocol`** read-only property is a string representing the
+  /// network protocol used to fetch the resource, as identified by the [ALPN
+  /// Protocol ID
+  /// (RFC7301)](https://www.iana.org/assignments/tls-extensiontype-values/tls-extensiontype-values.xhtml#alpn-protocol-ids).
+  ///
+  /// When a proxy is used, if a tunnel connection is established, this property
+  /// returns the ALPN Protocol ID of the tunneled protocol. Otherwise, this
+  /// property returns the ALPN Protocol ID of the first hop to the proxy.
   external String get nextHopProtocol;
+
+  /// The **`workerStart`** read-only property of the
+  /// [PerformanceResourceTiming] interface returns a
+  /// [DOMHighResTimeStamp] immediately before dispatching the [FetchEvent] if a
+  /// Service Worker thread is already running, or immediately before starting
+  /// the Service Worker thread if it is not already running. If the resource is
+  /// not intercepted by a Service Worker the property will always return 0.
   external DOMHighResTimeStamp get workerStart;
+
+  /// The **`redirectStart`** read-only property returns a [DOMHighResTimeStamp]
+  /// representing the start time of the fetch which that initiates the
+  /// redirect.
+  ///
+  /// If there are HTTP redirects when fetching the resource and if any of the
+  /// redirects are not from the same origin as the current document, but the
+  /// timing allow check algorithm passes for each redirected resource, this
+  /// property returns the starting time of the fetch that initiates the
+  /// redirect; otherwise, zero is returned.
+  ///
+  /// To get the amount of redirects, see also
+  /// [PerformanceNavigationTiming.redirectCount].
   external DOMHighResTimeStamp get redirectStart;
+
+  /// The **`redirectEnd`** read-only property returns a [DOMHighResTimeStamp]
+  /// immediately after receiving the last byte of the response of the last
+  /// redirect.
+  ///
+  /// When fetching a resource, if there are multiple HTTP redirects, and any of
+  /// the redirects have an origin that is different from the current document,
+  /// and the timing allow check algorithm passes for each redirected resource,
+  /// this property returns the time immediately after receiving the last byte
+  /// of the response of the last redirect; otherwise, zero is returned.
+  ///
+  /// To get the amount of redirects, see also
+  /// [PerformanceNavigationTiming.redirectCount].
   external DOMHighResTimeStamp get redirectEnd;
+
+  /// The **`fetchStart`** read-only property represents a [DOMHighResTimeStamp]
+  /// immediately before the browser starts to fetch the resource.
+  ///
+  /// If there are HTTP redirects, the property returns the time immediately
+  /// before the user agent starts to fetch the final resource in the
+  /// redirection.
+  ///
+  /// Unlike many other `PerformanceResourceTiming` properties, the `fetchStart`
+  /// property is available for cross-origin requests without the need of the
+  /// HTTP response header.
   external DOMHighResTimeStamp get fetchStart;
+
+  /// The **`domainLookupStart`** read-only property returns the
+  /// [DOMHighResTimeStamp] immediately before the browser starts the domain
+  /// name lookup for the resource.
   external DOMHighResTimeStamp get domainLookupStart;
+
+  /// The **`domainLookupEnd`** read-only property returns the
+  /// [DOMHighResTimeStamp] immediately after the browser finishes the
+  /// domain-name lookup for the resource.
+  ///
+  /// If the user agent has the domain information in cache,
+  /// [PerformanceResourceTiming.domainLookupStart] and
+  /// [PerformanceResourceTiming.domainLookupEnd] represent the times when the
+  /// user agent starts and ends the domain data retrieval from the cache.
   external DOMHighResTimeStamp get domainLookupEnd;
+
+  /// The **`connectStart`** read-only property returns the
+  /// [DOMHighResTimeStamp] immediately before the user agent starts
+  /// establishing the connection to the server to retrieve the resource.
   external DOMHighResTimeStamp get connectStart;
+
+  /// The **`connectEnd`** read-only property returns the [DOMHighResTimeStamp]
+  /// immediately after the browser finishes establishing the connection to the
+  /// server to retrieve the resource. The timestamp value includes the time
+  /// interval to establish the transport connection, as well as other time
+  /// intervals such as TLS handshake and
+  /// [SOCKS](https://en.wikipedia.org/wiki/SOCKS) authentication.
   external DOMHighResTimeStamp get connectEnd;
+
+  /// The **`secureConnectionStart`** read-only property returns a
+  /// [DOMHighResTimeStamp] immediately before the browser starts the handshake
+  /// process to secure the current connection. If a secure connection is not
+  /// used, the property returns zero.
   external DOMHighResTimeStamp get secureConnectionStart;
+
+  /// The **`requestStart`** read-only property returns a [DOMHighResTimeStamp]
+  /// of the time immediately before the browser starts requesting the resource
+  /// from the server, cache, or local resource. If the transport connection
+  /// fails and the browser retires the request, the value returned will be the
+  /// start of the retry request.
+  ///
+  /// There is no _end_ property for `requestStart`. To measure the request
+  /// time, calculate [PerformanceResourceTiming.responseStart] - `requestStart`
+  /// (see the example below).
   external DOMHighResTimeStamp get requestStart;
+
+  /// The **`firstInterimResponseStart`** read-only property returns a
+  /// [DOMHighResTimeStamp] immediately after the browser receives the first
+  /// byte of the interim 1xx response (for example, 100 Continue or 103 Early
+  /// Hints) from the server.
+  ///
+  /// There is no _end_ property for `firstInterimResponseStart`.
   external DOMHighResTimeStamp get firstInterimResponseStart;
+
+  /// The **`responseStart`** read-only property returns a [DOMHighResTimeStamp]
+  /// immediately after the browser receives the first byte of the response from
+  /// the server, cache, or local resource.
   external DOMHighResTimeStamp get responseStart;
+
+  /// The **`responseEnd`** read-only property returns a [DOMHighResTimeStamp]
+  /// immediately after the browser receives the last byte of the resource or
+  /// immediately before the transport connection is closed, whichever comes
+  /// first.
+  ///
+  /// Unlike many other `PerformanceResourceTiming` properties, the
+  /// `responseEnd` property is available for cross-origin requests without the
+  /// need of the  HTTP response header.
   external DOMHighResTimeStamp get responseEnd;
+
+  /// The **`transferSize`** read-only property represents the size (in octets)
+  /// of the fetched resource. The size includes the response header fields plus
+  /// the response payload body (as defined by
+  /// [RFC7230](https://httpwg.org/specs/rfc7230.html#message.body)).
+  ///
+  /// If the resource is fetched from a local cache, or if it is a cross-origin
+  /// resource, this property returns zero.
   external int get transferSize;
+
+  /// The **`encodedBodySize`** read-only property represents the size (in
+  /// octets) received from the fetch (HTTP or cache) of the payload body before
+  /// removing any applied content encodings (like gzip or Brotli). If the
+  /// resource is retrieved from an application cache or a local resource, it
+  /// must
+  /// return the size of the payload body before removing any applied content
+  /// encoding.
   external int get encodedBodySize;
+
+  /// The **`decodedBodySize`** read-only property returns the size (in octets)
+  /// received from the fetch (HTTP or cache) of the message body after removing
+  /// any applied content encoding (like gzip or Brotli). If the resource is
+  /// retrieved from an application cache or local resources, it returns the
+  /// size of the payload after removing any applied content encoding.
   external int get decodedBodySize;
+
+  /// The **`responseStatus`** read-only property represents the HTTP response
+  /// status code returned when fetching the resource.
+  ///
+  /// This property maps to [Response.status] from the
+  /// [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API).
   external int get responseStatus;
+
+  /// The **`renderBlockingStatus`** read-only property returns the
+  /// render-blocking status of the resource.
+  ///
+  /// It is useful to determine resources that:
+  ///
+  /// - weren't render-blocking and therefore could be delayed, or
+  /// - were render-blocking and therefore could be preloaded.
   external RenderBlockingStatusType get renderBlockingStatus;
   external String get contentType;
+
+  /// The **`serverTiming`** read-only property returns an array of
+  /// [PerformanceServerTiming] entries containing server timing metrics.
+  ///
+  /// Server timing metrics require the server to send the  header. For example:
+  ///
+  /// ```http
+  /// Server-Timing: cache;desc="Cache Read";dur=23.2
+  /// ```
+  ///
+  /// The `serverTiming` entries can live on `navigation` and `resource`
+  /// entries.
   external JSArray<PerformanceServerTiming> get serverTiming;
 }
diff --git a/lib/src/dom/screen_orientation.dart b/lib/src/dom/screen_orientation.dart
index 3e6383e5..e5a0e016 100644
--- a/lib/src/dom/screen_orientation.dart
+++ b/lib/src/dom/screen_orientation.dart
@@ -45,8 +45,18 @@ extension type ScreenOrientation._(JSObject _)
   /// [ScreenOrientation] interface unlocks the orientation of the containing
   /// document from its default orientation.
   external void unlock();
+
+  /// The **`type`** read-only property of the
+  /// [ScreenOrientation] interface returns the document's current orientation
+  /// type, one of `portrait-primary`, `portrait-secondary`,
+  /// `landscape-primary`, or
+  /// `landscape-secondary`.
   external OrientationType get type;
+
+  /// The **`angle`** read-only property of the
+  /// [ScreenOrientation] interface returns the document's current orientation
+  /// angle.
   external int get angle;
-  external set onchange(EventHandler value);
   external EventHandler get onchange;
+  external set onchange(EventHandler value);
 }
diff --git a/lib/src/dom/screen_wake_lock.dart b/lib/src/dom/screen_wake_lock.dart
index 150d41eb..3a0d0a17 100644
--- a/lib/src/dom/screen_wake_lock.dart
+++ b/lib/src/dom/screen_wake_lock.dart
@@ -75,8 +75,22 @@ extension type WakeLockSentinel._(JSObject _) implements EventTarget, JSObject {
   /// the [WakeLockSentinel], returning a `Promise` that is resolved once the
   /// sentinel has been successfully released.
   external JSPromise<JSAny?> release();
+
+  /// The **`released`** read-only property of the [WakeLockSentinel] interface
+  /// returns a boolean that indicates whether a [WakeLockSentinel] has been
+  /// released.
+  ///
+  /// The `WakeLockSentinel` is released when the associated platform screen
+  /// wake lock is revoked; afterwards `released` will always return `true`.
+  /// If a subsequent screen wake lock is required, the application will need to
+  /// request a new screen wake lock (the current `WakeLockSentinel` cannot be
+  /// reused).
   external bool get released;
+
+  /// The **`type`** read-only property of the [WakeLockSentinel] interface
+  /// returns a string representation of the currently acquired
+  /// [WakeLockSentinel] type.
   external WakeLockType get type;
-  external set onrelease(EventHandler value);
   external EventHandler get onrelease;
+  external set onrelease(EventHandler value);
 }
diff --git a/lib/src/dom/selection_api.dart b/lib/src/dom/selection_api.dart
index 83115b2d..a877597d 100644
--- a/lib/src/dom/selection_api.dart
+++ b/lib/src/dom/selection_api.dart
@@ -140,12 +140,88 @@ extension type Selection._(JSObject _) implements JSObject {
     Node node, [
     bool allowPartialContainment,
   ]);
+
+  /// The **`Selection.anchorNode`** read-only property returns the
+  /// [Node] in which the selection begins.
+  ///
+  /// A user may make a selection from left to right (in document order) or
+  /// right to left
+  /// (reverse of document order). The anchor is where the user began the
+  /// selection. This can
+  /// be visualized by holding the Shift key and pressing the arrow keys on your
+  /// keyboard. The
+  /// selection's anchor does not move, but the selection's focus, the other end
+  /// of the
+  /// selection, does move.
   external Node? get anchorNode;
+
+  /// The **`Selection.anchorOffset`** read-only property returns the
+  /// number of characters that the selection's anchor is offset within the
+  /// [Selection.anchorNode].
+  ///
+  /// This number is zero-based. If the selection begins with the first
+  /// character in the
+  /// [Selection.anchorNode], `0` is returned.
   external int get anchorOffset;
+
+  /// The **`Selection.focusNode`** read-only property returns the
+  /// [Node] in which the selection ends.
+  ///
+  /// A user may make a selection from left to right (in document order) or
+  /// right to left
+  /// (reverse of document order). The focus is where the user ended the
+  /// selection. This can
+  /// be visualized by holding the <kbd>Shift</kbd> key and pressing the arrow
+  /// keys on your
+  /// keyboard to modify the current selection. The selection's focus moves, but
+  /// the
+  /// selection's anchor, the other end of the selection, does not move.
   external Node? get focusNode;
+
+  /// The **`Selection.focusOffset`** read-only property returns the
+  /// number of characters that the selection's focus is offset within the
+  /// [Selection.focusNode].
+  ///
+  /// This number is zero-based. If the selection ends with the first character
+  /// in the
+  /// [Selection.focusNode], `0` is returned.
   external int get focusOffset;
+
+  /// The **`Selection.isCollapsed`** read-only property returns a
+  /// boolean value which indicates whether or not there is currently any text
+  /// selected. No text is selected when the selection's start and end points
+  /// are at the same
+  /// position in the content.
+  ///
+  /// Keep in mind that a collapsed selection may still have one (or more, in
+  /// Gecko)
+  /// [Range]s, so [Selection.rangeCount] may not be zero. In that
+  /// scenario, calling a [Selection] object's [Selection.getRangeAt]
+  /// method may return a `Range` object which is collapsed.
   external bool get isCollapsed;
+
+  /// The **`Selection.rangeCount`** read-only property returns the
+  /// number of ranges in the selection.
+  ///
+  /// Before the user has clicked a freshly loaded page, the `rangeCount` is
+  /// `0`. After the user clicks on the page, `rangeCount` is
+  /// `1`, even if no selection is visible.
+  ///
+  /// A user can normally only select one range at a time, so the `rangeCount`
+  /// will usually be `1`. Scripting can be used to make the selection contain
+  /// more
+  /// than one range.
+  ///
+  /// Gecko browsers allow multiple selections across table cells. Firefox
+  /// allows to select
+  /// multiple ranges in the document by using Ctrl+click (unless the click
+  /// occurs within an
+  /// element that has the `display: table-cell` CSS property assigned).
   external int get rangeCount;
+
+  /// The **`type`** read-only property of the
+  /// [Selection] interface returns a string describing the
+  /// type of the current selection.
   external String get type;
   external String get direction;
 }
diff --git a/lib/src/dom/server_timing.dart b/lib/src/dom/server_timing.dart
index 7b897ac5..7361e795 100644
--- a/lib/src/dom/server_timing.dart
+++ b/lib/src/dom/server_timing.dart
@@ -32,7 +32,17 @@ extension type PerformanceServerTiming._(JSObject _) implements JSObject {
   /// ; it returns a JSON representation of the [PerformanceServerTiming]
   /// object.
   external JSObject toJSON();
+
+  /// The **`name`** read-only property returns a
+  /// string value of the server-specified metric name.
   external String get name;
+
+  /// The **`duration`** read-only property returns a double that contains the
+  /// server-specified metric duration, or the value `0.0`.
   external DOMHighResTimeStamp get duration;
+
+  /// The **`description`** read-only property returns a
+  /// string value of the server-specified metric description, or an empty
+  /// string.
   external String get description;
 }
diff --git a/lib/src/dom/service_workers.dart b/lib/src/dom/service_workers.dart
index 0bbac20e..83b64176 100644
--- a/lib/src/dom/service_workers.dart
+++ b/lib/src/dom/service_workers.dart
@@ -72,12 +72,24 @@ extension type ServiceWorker._(JSObject _) implements EventTarget, JSObject {
     JSAny? message, [
     JSObject optionsOrTransfer,
   ]);
+
+  /// Returns the `ServiceWorker` serialized script URL defined as part of
+  /// [`ServiceWorkerRegistration`](https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerRegistration).
+  /// Must be on the same origin as the document that registers the
+  /// `ServiceWorker`.
   external String get scriptURL;
+
+  /// The **`state`** read-only property of the
+  /// [ServiceWorker] interface returns a string representing the current state
+  /// of the service worker. It can be one of the following values: `parsed`,
+  /// `installing`,
+  /// `installed`, `activating`, `activated`, or
+  /// `redundant`.
   external ServiceWorkerState get state;
-  external set onstatechange(EventHandler value);
   external EventHandler get onstatechange;
-  external set onerror(EventHandler value);
+  external set onstatechange(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 
 /// The **`ServiceWorkerRegistration`** interface of the
@@ -137,15 +149,67 @@ extension type ServiceWorkerRegistration._(JSObject _)
   /// operations before it is
   /// unregistered.
   external JSPromise<JSBoolean> unregister();
+
+  /// The **`pushManager`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns a reference to the
+  /// [PushManager] interface for managing push subscriptions; this includes
+  /// support for subscribing, getting an active subscription, and accessing
+  /// push permission
+  /// status.
   external PushManager get pushManager;
+
+  /// The **`installing`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns a service worker whose
+  /// [ServiceWorker.state] is `installing`. This property is
+  /// initially set to `null`.
   external ServiceWorker? get installing;
+
+  /// The **`waiting`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns a service worker whose
+  /// [ServiceWorker.state] is `installed`. This property is initially
+  /// set to `null`.
   external ServiceWorker? get waiting;
+
+  /// The **`active`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns a service worker whose
+  /// [ServiceWorker.state] is `activating` or `activated`.
+  /// This property is initially set to `null`.
+  ///
+  /// An active worker controls a [Client] if the client's URL
+  /// falls within the scope of the registration (the `scope` option set when
+  /// [ServiceWorkerContainer.register] is first called.)
+  ///
+  /// > **Note:** Once an active worker is `activating`, neither a
+  /// > runtime script error nor a force termination of the active worker
+  /// > prevents the active
+  /// > worker from getting `activated`.
   external ServiceWorker? get active;
+
+  /// The **`navigationPreload`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns the
+  /// [NavigationPreloadManager] associated with the current service worker
+  /// registration.
+  ///
+  /// The returned object allows resources managed by a service worker to be
+  /// preemptively downloaded in parallel with service worker boot up.
   external NavigationPreloadManager get navigationPreload;
+
+  /// The **`scope`** read-only property of the
+  /// [ServiceWorkerRegistration] interface returns a unique identifier for a
+  /// service worker registration. The service worker must be on the same origin
+  /// as the
+  /// document that registers the [ServiceWorker].
   external String get scope;
+
+  /// The **`updateViaCache`** read-only property of the
+  /// [ServiceWorkerRegistration] interface updates the cache using
+  /// the mode specified in the call to [ServiceWorkerContainer.register].
+  /// Requests for `importScripts` still go via the HTTP cache. `updateViaCache`
+  /// offers
+  /// control over this behavior.
   external ServiceWorkerUpdateViaCache get updateViaCache;
-  external set onupdatefound(EventHandler value);
   external EventHandler get onupdatefound;
+  external set onupdatefound(EventHandler value);
 }
 
 /// The **`ServiceWorkerContainer`** interface of the
@@ -211,14 +275,31 @@ extension type ServiceWorkerContainer._(JSObject _)
   /// via [Client.postMessage]). This can be used to react to sent messages
   /// earlier, even before that page's content has finished loading.
   external void startMessages();
+
+  /// The **`controller`** read-only
+  /// property of the [ServiceWorkerContainer] interface returns a
+  /// [ServiceWorker] object if its state is `activating` or
+  /// `activated` (the same object returned by
+  /// [ServiceWorkerRegistration.active]). This property returns
+  /// `null` if the request is a force refresh (_Shift_ + refresh) or if
+  /// there is no active worker.
   external ServiceWorker? get controller;
+
+  /// The **`ready`** read-only property of
+  /// the [ServiceWorkerContainer] interface provides a way of delaying code
+  /// execution until a service worker is active. It returns a `Promise` that
+  /// will never reject, and which waits indefinitely until
+  /// the [ServiceWorkerRegistration] associated with the current page has
+  /// an [ServiceWorkerRegistration.active] worker. Once that
+  /// condition is met, it resolves with
+  /// the [ServiceWorkerRegistration].
   external JSPromise<ServiceWorkerRegistration> get ready;
-  external set oncontrollerchange(EventHandler value);
   external EventHandler get oncontrollerchange;
-  external set onmessage(EventHandler value);
+  external set oncontrollerchange(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
+  external set onmessageerror(EventHandler value);
 }
 extension type RegistrationOptions._(JSObject _) implements JSObject {
   external factory RegistrationOptions({
@@ -227,12 +308,12 @@ extension type RegistrationOptions._(JSObject _) implements JSObject {
     ServiceWorkerUpdateViaCache updateViaCache,
   });
 
-  external set scope(String value);
   external String get scope;
-  external set type(WorkerType value);
+  external set scope(String value);
   external WorkerType get type;
-  external set updateViaCache(ServiceWorkerUpdateViaCache value);
+  external set type(WorkerType value);
   external ServiceWorkerUpdateViaCache get updateViaCache;
+  external set updateViaCache(ServiceWorkerUpdateViaCache value);
 }
 
 /// The **`NavigationPreloadManager`** interface of the
@@ -297,10 +378,10 @@ extension type NavigationPreloadState._(JSObject _) implements JSObject {
     String headerValue,
   });
 
-  external set enabled(bool value);
   external bool get enabled;
-  external set headerValue(String value);
+  external set enabled(bool value);
   external String get headerValue;
+  external set headerValue(String value);
 }
 
 /// The **`ServiceWorkerGlobalScope`** interface of the
@@ -338,27 +419,41 @@ extension type ServiceWorkerGlobalScope._(JSObject _)
   /// underlying service worker take effect immediately for both the current
   /// client and all other active clients.
   external JSPromise<JSAny?> skipWaiting();
-  external set onnotificationclick(EventHandler value);
   external EventHandler get onnotificationclick;
-  external set onnotificationclose(EventHandler value);
+  external set onnotificationclick(EventHandler value);
   external EventHandler get onnotificationclose;
-  external set onpush(EventHandler value);
+  external set onnotificationclose(EventHandler value);
   external EventHandler get onpush;
-  external set onpushsubscriptionchange(EventHandler value);
+  external set onpush(EventHandler value);
   external EventHandler get onpushsubscriptionchange;
+  external set onpushsubscriptionchange(EventHandler value);
+
+  /// The **`clients`** read-only property of the
+  /// [ServiceWorkerGlobalScope] interface returns the
+  /// [`Clients`](https://developer.mozilla.org/en-US/docs/Web/API/Clients)
+  /// object associated with the service worker.
   external Clients get clients;
+
+  /// The **`registration`** read-only property of the
+  /// [ServiceWorkerGlobalScope] interface returns a reference to the
+  /// [ServiceWorkerRegistration] object, which represents the service worker's
+  /// registration.
   external ServiceWorkerRegistration get registration;
+
+  /// The **`serviceWorker`** read-only property of the
+  /// [ServiceWorkerGlobalScope] interface returns a reference to the
+  /// [ServiceWorker] object, which represents the service worker.
   external ServiceWorker get serviceWorker;
-  external set oninstall(EventHandler value);
   external EventHandler get oninstall;
-  external set onactivate(EventHandler value);
+  external set oninstall(EventHandler value);
   external EventHandler get onactivate;
-  external set onfetch(EventHandler value);
+  external set onactivate(EventHandler value);
   external EventHandler get onfetch;
-  external set onmessage(EventHandler value);
+  external set onfetch(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
+  external set onmessageerror(EventHandler value);
 }
 
 /// The `Client` interface represents an executable context such as a [Worker],
@@ -380,9 +475,22 @@ extension type Client._(JSObject _) implements JSObject {
     JSAny? message, [
     JSObject optionsOrTransfer,
   ]);
+
+  /// The **`url`** read-only property of the [Client]
+  /// interface returns the URL of the current service worker client.
   external String get url;
+
+  /// The **`frameType`** read-only property of the [Client] interface indicates
+  /// the type of browsing context of the current [Client]. This value can be
+  /// one of `"auxiliary"`, `"top-level"`, `"nested"`, or `"none"`.
   external FrameType get frameType;
+
+  /// The **`id`** read-only property of the [Client] interface returns the
+  /// universally unique identifier of the [Client] object.
   external String get id;
+
+  /// The **`type`** read-only property of the [Client]
+  /// interface indicates the type of client the service worker is controlling.
   external ClientType get type;
 }
 
@@ -409,8 +517,26 @@ extension type WindowClient._(JSObject _) implements Client, JSObject {
   /// a
   /// `Promise` that resolves to the existing [WindowClient].
   external JSPromise<WindowClient?> navigate(String url);
+
+  /// The **`visibilityState`** read-only property of the
+  /// [WindowClient] interface indicates the visibility of the current client.
+  /// This value can be one of `"hidden"`, `"visible"`, or
+  /// `"prerender"`.
   external DocumentVisibilityState get visibilityState;
+
+  /// The **`focused`** read-only property of the
+  /// [WindowClient] interface is a boolean value that indicates whether
+  /// the current client has focus.
   external bool get focused;
+
+  /// The **`ancestorOrigins`** read-only property of the [WindowClient]
+  /// interface is an array of strings listing the origins of all ancestors of
+  /// the browsing context represented by this `WindowClient` in reverse order.
+  ///
+  /// The first element in the array is the origin of this window's parent, and
+  /// the last element is the origin of the top-level browsing context. If this
+  /// window is itself a top-level browsing context, then `ancestorOrigins` is
+  /// an empty array.
   external JSArray<JSString> get ancestorOrigins;
 }
 
@@ -480,10 +606,10 @@ extension type ClientQueryOptions._(JSObject _) implements JSObject {
     ClientType type,
   });
 
-  external set includeUncontrolled(bool value);
   external bool get includeUncontrolled;
-  external set type(ClientType value);
+  external set includeUncontrolled(bool value);
   external ClientType get type;
+  external set type(ClientType value);
 }
 
 /// The **`ExtendableEvent`** interface extends the lifetime of the
@@ -642,11 +768,77 @@ extension type FetchEvent._(JSObject _) implements ExtendableEvent, JSObject {
   /// "alternate" view of a web page when offline without changing the
   /// user-visible URL.
   external void respondWith(JSPromise<Response> r);
+
+  /// The **`request`** read-only property of the
+  /// [FetchEvent] interface returns the [Request] that triggered
+  /// the event handler.
+  ///
+  /// This property is non-nullable (since version 46, in the case of Firefox.)
+  /// If a request
+  /// is not provided by some other means, the constructor `options` object must
+  /// contain a request (see [FetchEvent.FetchEvent].)
   external Request get request;
+
+  /// The **`preloadResponse`** read-only property of the [FetchEvent] interface
+  /// returns a `Promise` that resolves to the navigation preload [Response] if
+  /// [navigation preload](https://developer.mozilla.org/en-US/docs/Web/API/NavigationPreloadManager)
+  /// was triggered, or `undefined` otherwise.
+  ///
+  /// Navigation preload is triggered if
+  /// [navigation preload is enabled](https://developer.mozilla.org/en-US/docs/Web/API/NavigationPreloadManager/enable),
+  /// the request is a `GET` request, and the request is a navigation request
+  /// (generated by the browser when loading pages and iframes).
+  ///
+  /// A service worker can wait on this promise in its fetch event handler in
+  /// order to track completion of a fetch request made during service-worker
+  /// boot.
   external JSPromise<JSAny?> get preloadResponse;
+
+  /// The **`clientId`** read-only property of the
+  /// [FetchEvent] interface returns the id of the [Client] that the
+  /// current service worker is controlling.
+  ///
+  /// The [Clients.get] method could then be passed this ID to retrieve the
+  /// associated client.
   external String get clientId;
+
+  /// The **`resultingClientId`** read-only property of the
+  /// [FetchEvent] interface is the [Client.id] of the
+  /// [Client] that replaces the previous client during a page
+  /// navigation.
+  ///
+  /// For example, when navigating from page A to page B `resultingClientId` is
+  /// the ID of the client associated with page B.
+  ///
+  /// If the fetch request is a subresource request or the request's
+  /// [`destination`](https://developer.mozilla.org/en-US/docs/Web/API/Request/destination)
+  /// is
+  /// `report`, `resultingClientId` will be an empty string.
   external String get resultingClientId;
+
+  /// The **`replacesClientId`** read-only property of the
+  /// [FetchEvent] interface is the [Client.id] of the
+  /// [Client] that is being replaced during a page navigation.
+  ///
+  /// For example, when navigating from page A to page B `replacesClientId` is
+  /// the
+  /// ID of the client associated with page A. It can be an empty string when
+  /// navigating from
+  /// `about:blank` to another page, as `about:blank`'s client will be
+  /// reused, rather than be replaced.
+  ///
+  /// Additionally, if the fetch isn't a navigation, `replacesClientId` will be
+  /// an
+  /// empty string. This could be used to access/communicate with a client that
+  /// will
+  /// imminently be replaced, right before a navigation.
   external String get replacesClientId;
+
+  /// The **`handled`** property of the [FetchEvent] interface returns a promise
+  /// indicating if the event has been handled by the fetch algorithm or not.
+  /// This property allows executing code after the browser has consumed a
+  /// response, and is usually used together with the
+  /// [ExtendableEvent.waitUntil] method.
   external JSPromise<JSAny?> get handled;
 }
 extension type FetchEventInit._(JSObject _)
@@ -663,18 +855,18 @@ extension type FetchEventInit._(JSObject _)
     JSPromise<JSAny?> handled,
   });
 
-  external set request(Request value);
   external Request get request;
-  external set preloadResponse(JSPromise<JSAny?> value);
+  external set request(Request value);
   external JSPromise<JSAny?> get preloadResponse;
-  external set clientId(String value);
+  external set preloadResponse(JSPromise<JSAny?> value);
   external String get clientId;
-  external set resultingClientId(String value);
+  external set clientId(String value);
   external String get resultingClientId;
-  external set replacesClientId(String value);
+  external set resultingClientId(String value);
   external String get replacesClientId;
-  external set handled(JSPromise<JSAny?> value);
+  external set replacesClientId(String value);
   external JSPromise<JSAny?> get handled;
+  external set handled(JSPromise<JSAny?> value);
 }
 
 /// The **`ExtendableMessageEvent`** interface of the
@@ -697,10 +889,31 @@ extension type ExtendableMessageEvent._(JSObject _)
     ExtendableMessageEventInit eventInitDict,
   ]);
 
+  /// The **`data`** read-only property of the
+  /// [ExtendableMessageEvent] interface returns the event's data. It can be any
+  /// data type.
   external JSAny? get data;
+
+  /// The **`origin`** read-only property of the
+  /// [ExtendableMessageEvent] interface returns the origin of the
+  /// [Client] that sent the message.
   external String get origin;
+
+  /// The **`lastEventID`** read-only property of the
+  /// [ExtendableMessageEvent] interface represents, in
+  /// [server-sent events](https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events),
+  /// the last event ID of the event source. This is an empty string.
   external String get lastEventId;
+
+  /// The **`source`** read-only property of the
+  /// [ExtendableMessageEvent] interface returns a reference to the
+  /// [Client] object from which the message was sent.
   external JSObject? get source;
+
+  /// The **`ports`** read-only property of the
+  /// [ExtendableMessageEvent] interface returns the array containing the
+  /// [MessagePort] objects representing the ports of the associated message
+  /// channel (the channel the message is being sent through.)
   external JSArray<MessagePort> get ports;
 }
 extension type ExtendableMessageEventInit._(JSObject _)
@@ -716,16 +929,16 @@ extension type ExtendableMessageEventInit._(JSObject _)
     JSArray<MessagePort> ports,
   });
 
-  external set data(JSAny? value);
   external JSAny? get data;
-  external set origin(String value);
+  external set data(JSAny? value);
   external String get origin;
-  external set lastEventId(String value);
+  external set origin(String value);
   external String get lastEventId;
-  external set source(JSObject? value);
+  external set lastEventId(String value);
   external JSObject? get source;
-  external set ports(JSArray<MessagePort> value);
+  external set source(JSObject? value);
   external JSArray<MessagePort> get ports;
+  external set ports(JSArray<MessagePort> value);
 }
 
 /// The **`Cache`** interface provides a persistent storage mechanism for
@@ -878,12 +1091,12 @@ extension type CacheQueryOptions._(JSObject _) implements JSObject {
     bool ignoreVary,
   });
 
-  external set ignoreSearch(bool value);
   external bool get ignoreSearch;
-  external set ignoreMethod(bool value);
+  external set ignoreSearch(bool value);
   external bool get ignoreMethod;
-  external set ignoreVary(bool value);
+  external set ignoreMethod(bool value);
   external bool get ignoreVary;
+  external set ignoreVary(bool value);
 }
 
 /// The **`CacheStorage`** interface represents the storage for [Cache] objects.
@@ -983,6 +1196,6 @@ extension type MultiCacheQueryOptions._(JSObject _)
     String cacheName,
   });
 
-  external set cacheName(String value);
   external String get cacheName;
+  external set cacheName(String value);
 }
diff --git a/lib/src/dom/speech_api.dart b/lib/src/dom/speech_api.dart
index 3e9dd96b..4a44e751 100644
--- a/lib/src/dom/speech_api.dart
+++ b/lib/src/dom/speech_api.dart
@@ -59,38 +59,74 @@ extension type SpeechRecognition._(JSObject _)
   /// to return a
   /// [SpeechRecognitionResult].
   external void abort();
-  external set grammars(SpeechGrammarList value);
+
+  /// The **`grammars`** property of the
+  /// [SpeechRecognition] interface returns and sets a collection of
+  /// [SpeechGrammar] objects that represent the grammars that will be
+  /// understood
+  /// by the current `SpeechRecognition`.
   external SpeechGrammarList get grammars;
-  external set lang(String value);
+  external set grammars(SpeechGrammarList value);
+
+  /// The **`lang`** property of the [SpeechRecognition]
+  /// interface returns and sets the language of the current
+  /// `SpeechRecognition`.
+  /// If not specified, this defaults to the HTML
+  /// [`lang`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/html#lang)
+  /// attribute
+  /// value, or the user agent's language setting if that isn't set either.
   external String get lang;
-  external set continuous(bool value);
+  external set lang(String value);
+
+  /// The **`continuous`** property of the
+  /// [SpeechRecognition] interface controls whether continuous results are
+  /// returned for each recognition, or only a single result.
+  ///
+  /// It defaults to single results (`false`.)
   external bool get continuous;
-  external set interimResults(bool value);
+  external set continuous(bool value);
+
+  /// The **`interimResults`** property of the
+  /// [SpeechRecognition] interface controls whether interim results should be
+  /// returned (`true`) or not (`false`.) Interim results are results
+  /// that are not yet final (e.g. the [SpeechRecognitionResult.isFinal]
+  /// property
+  /// is `false`.)
+  ///
+  /// The default value for **`interimResults`** is `false`.
   external bool get interimResults;
-  external set maxAlternatives(int value);
+  external set interimResults(bool value);
+
+  /// The **`maxAlternatives`** property of the
+  /// [SpeechRecognition] interface sets the maximum number of
+  /// [SpeechRecognitionAlternative]s provided per
+  /// [SpeechRecognitionResult].
+  ///
+  /// The default value is 1.
   external int get maxAlternatives;
-  external set onaudiostart(EventHandler value);
+  external set maxAlternatives(int value);
   external EventHandler get onaudiostart;
-  external set onsoundstart(EventHandler value);
+  external set onaudiostart(EventHandler value);
   external EventHandler get onsoundstart;
-  external set onspeechstart(EventHandler value);
+  external set onsoundstart(EventHandler value);
   external EventHandler get onspeechstart;
-  external set onspeechend(EventHandler value);
+  external set onspeechstart(EventHandler value);
   external EventHandler get onspeechend;
-  external set onsoundend(EventHandler value);
+  external set onspeechend(EventHandler value);
   external EventHandler get onsoundend;
-  external set onaudioend(EventHandler value);
+  external set onsoundend(EventHandler value);
   external EventHandler get onaudioend;
-  external set onresult(EventHandler value);
+  external set onaudioend(EventHandler value);
   external EventHandler get onresult;
-  external set onnomatch(EventHandler value);
+  external set onresult(EventHandler value);
   external EventHandler get onnomatch;
-  external set onerror(EventHandler value);
+  external set onnomatch(EventHandler value);
   external EventHandler get onerror;
-  external set onstart(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onstart;
-  external set onend(EventHandler value);
+  external set onstart(EventHandler value);
   external EventHandler get onend;
+  external set onend(EventHandler value);
 }
 
 /// The **`SpeechRecognitionErrorEvent`** interface of the
@@ -108,7 +144,13 @@ extension type SpeechRecognitionErrorEvent._(JSObject _)
     SpeechRecognitionErrorEventInit eventInitDict,
   );
 
+  /// The **`error`** read-only property of the
+  /// [SpeechRecognitionErrorEvent] interface returns the type of error raised.
   external SpeechRecognitionErrorCode get error;
+
+  /// The **`message`** read-only property of the
+  /// [SpeechRecognitionErrorEvent] interface returns a message describing the
+  /// error in more detail.
   external String get message;
 }
 extension type SpeechRecognitionErrorEventInit._(JSObject _)
@@ -121,10 +163,10 @@ extension type SpeechRecognitionErrorEventInit._(JSObject _)
     String message,
   });
 
-  external set error(SpeechRecognitionErrorCode value);
   external SpeechRecognitionErrorCode get error;
-  external set message(String value);
+  external set error(SpeechRecognitionErrorCode value);
   external String get message;
+  external set message(String value);
 }
 
 /// The **`SpeechRecognitionAlternative`** interface of the
@@ -137,7 +179,23 @@ extension type SpeechRecognitionErrorEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognitionAlternative).
 extension type SpeechRecognitionAlternative._(JSObject _) implements JSObject {
+  /// The **`transcript`** read-only property of the
+  /// [SpeechRecognitionResult] interface returns a string containing the
+  /// transcript of the recognized word(s).
+  ///
+  /// For continuous recognition, leading or trailing whitespace will be
+  /// included where
+  /// necessary so that concatenation of consecutive [SpeechRecognitionResult]s
+  /// produces a proper transcript of the session.
   external String get transcript;
+
+  /// The **`confidence`** read-only property of the
+  /// [SpeechRecognitionResult] interface returns a numeric estimate of how
+  /// confident the speech recognition system is that the recognition is
+  /// correct.
+  ///
+  /// > **Note:** Mozilla's implementation of `confidence` is still
+  /// > being worked on — at the moment, it always seems to return 1.
   external num get confidence;
 }
 
@@ -157,7 +215,23 @@ extension type SpeechRecognitionResult._(JSObject _) implements JSObject {
   /// via
   /// array syntax.
   external SpeechRecognitionAlternative item(int index);
+
+  /// The **`length`** read-only property of the
+  /// [SpeechRecognitionResult] interface returns the length of the "array"
+  /// — the number of [SpeechRecognitionAlternative] objects contained
+  /// in the result (also referred to as "n-best alternatives".)
+  ///
+  /// The number of alternatives contained in the result depends on what the
+  /// [SpeechRecognition.maxAlternatives] property was set to when the speech
+  /// recognition was first initiated.
   external int get length;
+
+  /// The **`isFinal`** read-only property of the
+  /// [SpeechRecognitionResult] interface is a boolean value that states
+  /// whether this result is final (`true`) or not (`false`) — if so,
+  /// then this is the final time this result will be returned; if not, then
+  /// this result is an
+  /// interim result, and may be updated later on.
   external bool get isFinal;
 }
 
@@ -176,6 +250,11 @@ extension type SpeechRecognitionResultList._(JSObject _) implements JSObject {
   /// [SpeechRecognitionResult] objects in the list to be accessed via array
   /// syntax.
   external SpeechRecognitionResult item(int index);
+
+  /// The **`length`** read-only property of the
+  /// [SpeechRecognitionResultList] interface returns the length of the
+  /// "array" — the number of [SpeechRecognitionResult] objects in the
+  /// list.
   external int get length;
 }
 
@@ -195,7 +274,31 @@ extension type SpeechRecognitionEvent._(JSObject _) implements Event, JSObject {
     SpeechRecognitionEventInit eventInitDict,
   );
 
+  /// The **`resultIndex`** read-only property of the
+  /// [SpeechRecognitionEvent] interface returns the lowest index value result
+  /// in
+  /// the [SpeechRecognitionResultList] "array" that has actually changed.
+  ///
+  /// The [SpeechRecognitionResultList] object is not an array, but it has a
+  /// getter that allows it to be accessed by array syntax.
   external int get resultIndex;
+
+  /// The **`results`** read-only property of the
+  /// [SpeechRecognitionEvent] interface returns a
+  /// [SpeechRecognitionResultList] object representing all the speech
+  /// recognition results for the current session.
+  ///
+  /// Specifically this object will contain all final results that have been
+  /// returned,
+  /// followed by the current best hypothesis for all interim results. When
+  /// subsequent
+  /// [SpeechRecognition.result_event] events are fired, interim results may be
+  /// overwritten by a newer
+  /// interim result or by a final result — they may even be removed, if they
+  /// are at the end
+  /// of the "results" array and the array length decreases. Final results on
+  /// the other hand
+  /// will not be overwritten or removed.
   external SpeechRecognitionResultList get results;
 }
 extension type SpeechRecognitionEventInit._(JSObject _)
@@ -208,10 +311,10 @@ extension type SpeechRecognitionEventInit._(JSObject _)
     required SpeechRecognitionResultList results,
   });
 
-  external set resultIndex(int value);
   external int get resultIndex;
-  external set results(SpeechRecognitionResultList value);
+  external set resultIndex(int value);
   external SpeechRecognitionResultList get results;
+  external set results(SpeechRecognitionResultList value);
 }
 
 /// The **`SpeechGrammar`** interface of the
@@ -228,10 +331,18 @@ extension type SpeechRecognitionEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SpeechGrammar).
 extension type SpeechGrammar._(JSObject _) implements JSObject {
-  external set src(String value);
+  /// The **`src`** property of the [SpeechGrammar]
+  /// interface sets and returns a string containing the grammar from within in
+  /// the
+  /// `SpeechGrammar` object.
   external String get src;
-  external set weight(num value);
+  external set src(String value);
+
+  /// The optional **`weight`** property of the
+  /// [SpeechGrammar] interface sets and returns the weight of the
+  /// `SpeechGrammar` object.
   external num get weight;
+  external set weight(num value);
 }
 
 /// The **`SpeechGrammarList`** interface of the
@@ -277,6 +388,10 @@ extension type SpeechGrammarList._(JSObject _) implements JSObject {
     String string, [
     num weight,
   ]);
+
+  /// The **`length`** read-only property of the
+  /// [SpeechGrammarList] interface returns the number of
+  /// [SpeechGrammar] objects contained in the [SpeechGrammarList].
   external int get length;
 }
 
@@ -318,11 +433,32 @@ extension type SpeechSynthesis._(JSObject _) implements EventTarget, JSObject {
   /// the
   /// current device.
   external JSArray<SpeechSynthesisVoice> getVoices();
+
+  /// The **`pending`** read-only property of the
+  /// [SpeechSynthesis] interface is a boolean value that returns
+  /// `true` if the utterance queue contains as-yet-unspoken utterances.
   external bool get pending;
+
+  /// The **`speaking`** read-only property of the
+  /// [SpeechSynthesis] interface is a boolean value that returns
+  /// `true` if an utterance is currently in the process of being spoken — even
+  /// if `SpeechSynthesis` is in a
+  /// [SpeechSynthesis.pause] state.
   external bool get speaking;
+
+  /// The **`paused`** read-only property of the
+  /// [SpeechSynthesis] interface is a boolean value that returns
+  /// `true` if the `SpeechSynthesis` object is in a paused state, or `false` if
+  /// not.
+  ///
+  /// It can be set to [SpeechSynthesis.pause] even if nothing is
+  /// currently being spoken through it. If
+  /// [SpeechSynthesisUtterance] are then added to the utterance
+  /// queue, they will not be spoken until the `SpeechSynthesis` object is
+  /// unpaused, using [SpeechSynthesis.resume].
   external bool get paused;
-  external set onvoiceschanged(EventHandler value);
   external EventHandler get onvoiceschanged;
+  external set onvoiceschanged(EventHandler value);
 }
 
 /// The **`SpeechSynthesisUtterance`** interface of the
@@ -339,32 +475,70 @@ extension type SpeechSynthesisUtterance._(JSObject _)
     implements EventTarget, JSObject {
   external factory SpeechSynthesisUtterance([String text]);
 
-  external set text(String value);
+  /// The **`text`** property of the
+  /// [SpeechSynthesisUtterance] interface gets and sets the text that will be
+  /// synthesized when the utterance is spoken.
+  ///
+  /// The text may be provided as plain text, or a well-formed
+  /// [SSML](https://www.w3.org/TR/speech-synthesis/) document.
+  /// The SSML tags will be stripped away by devices that don't support SSML.
   external String get text;
-  external set lang(String value);
+  external set text(String value);
+
+  /// The **`lang`** property of the [SpeechSynthesisUtterance] interface gets
+  /// and sets the language of the utterance.
+  ///
+  /// If unset, the app's (i.e. the `html`
+  /// [`lang`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/html#lang)
+  /// value) lang will be used, or the user-agent default if that is unset too.
   external String get lang;
-  external set voice(SpeechSynthesisVoice? value);
+  external set lang(String value);
+
+  /// The **`voice`** property of the [SpeechSynthesisUtterance] interface gets
+  /// and sets the voice that will be used to speak the utterance.
+  ///
+  /// This should be set to one of the [SpeechSynthesisVoice] objects returned
+  /// by [SpeechSynthesis.getVoices].
+  /// If not set by the time the utterance is spoken, the voice used will be the
+  /// most suitable default voice available for the utterance's
+  /// [SpeechSynthesisUtterance.lang] setting.
   external SpeechSynthesisVoice? get voice;
-  external set volume(num value);
+  external set voice(SpeechSynthesisVoice? value);
+
+  /// The **`volume`** property of the [SpeechSynthesisUtterance] interface gets
+  /// and sets the volume that the utterance will be spoken at.
+  ///
+  /// If not set, the default value 1 will be used.
   external num get volume;
-  external set rate(num value);
+  external set volume(num value);
+
+  /// The **`rate`** property of the [SpeechSynthesisUtterance] interface gets
+  /// and sets the speed at which the utterance will be spoken at.
+  ///
+  /// If unset, a default value of 1 will be used.
   external num get rate;
-  external set pitch(num value);
+  external set rate(num value);
+
+  /// The **`pitch`** property of the [SpeechSynthesisUtterance] interface gets
+  /// and sets the pitch at which the utterance will be spoken at.
+  ///
+  /// If unset, a default value of 1 will be used.
   external num get pitch;
-  external set onstart(EventHandler value);
+  external set pitch(num value);
   external EventHandler get onstart;
-  external set onend(EventHandler value);
+  external set onstart(EventHandler value);
   external EventHandler get onend;
-  external set onerror(EventHandler value);
+  external set onend(EventHandler value);
   external EventHandler get onerror;
-  external set onpause(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onpause;
-  external set onresume(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onresume;
-  external set onmark(EventHandler value);
+  external set onresume(EventHandler value);
   external EventHandler get onmark;
-  external set onboundary(EventHandler value);
+  external set onmark(EventHandler value);
   external EventHandler get onboundary;
+  external set onboundary(EventHandler value);
 }
 
 /// The **`SpeechSynthesisEvent`** interface of the
@@ -382,10 +556,38 @@ extension type SpeechSynthesisEvent._(JSObject _) implements Event, JSObject {
     SpeechSynthesisEventInit eventInitDict,
   );
 
+  /// The **`utterance`** read-only property of the [SpeechSynthesisUtterance]
+  /// interface returns the [SpeechSynthesisUtterance] instance that the event
+  /// was triggered on.
   external SpeechSynthesisUtterance get utterance;
+
+  /// The **`charIndex`** read-only property of the [SpeechSynthesisUtterance]
+  /// interface returns the index position of the character in
+  /// [SpeechSynthesisUtterance.text] that was being spoken when the event was
+  /// triggered.
   external int get charIndex;
+
+  /// The read-only **`charLength`** property of the [SpeechSynthesisEvent]
+  /// interface returns the number of characters left to be spoken after the
+  /// character at the [SpeechSynthesisEvent.charIndex] position.
+  ///
+  /// If the speech engine can't determine it, it returns 0.
   external int get charLength;
+
+  /// The **`elapsedTime`** read-only property of the [SpeechSynthesisEvent]
+  /// returns the elapsed time in seconds, after the
+  /// [SpeechSynthesisUtterance.text] started being spoken, at which the
+  /// [event](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance#events)
+  /// was triggered.
   external num get elapsedTime;
+
+  /// The **`name`** read-only property of the [SpeechSynthesisUtterance]
+  /// interface returns the name associated with certain types of events
+  /// occurring as the [SpeechSynthesisUtterance.text] is being spoken:
+  /// the name of the [SSML](https://www.w3.org/TR/speech-synthesis/#S3.3.2)
+  /// marker reached in the case of a [SpeechSynthesisUtterance.mark_event]
+  /// event, or the type of boundary reached in the case of a
+  /// [SpeechSynthesisUtterance.boundary_event] event.
   external String get name;
 }
 extension type SpeechSynthesisEventInit._(JSObject _)
@@ -401,16 +603,16 @@ extension type SpeechSynthesisEventInit._(JSObject _)
     String name,
   });
 
-  external set utterance(SpeechSynthesisUtterance value);
   external SpeechSynthesisUtterance get utterance;
-  external set charIndex(int value);
+  external set utterance(SpeechSynthesisUtterance value);
   external int get charIndex;
-  external set charLength(int value);
+  external set charIndex(int value);
   external int get charLength;
-  external set elapsedTime(num value);
+  external set charLength(int value);
   external num get elapsedTime;
-  external set name(String value);
+  external set elapsedTime(num value);
   external String get name;
+  external set name(String value);
 }
 
 /// The **`SpeechSynthesisErrorEvent`** interface of the
@@ -429,6 +631,9 @@ extension type SpeechSynthesisErrorEvent._(JSObject _)
     SpeechSynthesisErrorEventInit eventInitDict,
   );
 
+  /// The **`error`** property of the
+  /// [SpeechSynthesisErrorEvent] interface returns an error code indicating
+  /// what has gone wrong with a speech synthesis attempt.
   external SpeechSynthesisErrorCode get error;
 }
 extension type SpeechSynthesisErrorEventInit._(JSObject _)
@@ -445,8 +650,8 @@ extension type SpeechSynthesisErrorEventInit._(JSObject _)
     required SpeechSynthesisErrorCode error,
   });
 
-  external set error(SpeechSynthesisErrorCode value);
   external SpeechSynthesisErrorCode get error;
+  external set error(SpeechSynthesisErrorCode value);
 }
 
 /// The **`SpeechSynthesisVoice`** interface of the
@@ -460,9 +665,32 @@ extension type SpeechSynthesisErrorEventInit._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisVoice).
 extension type SpeechSynthesisVoice._(JSObject _) implements JSObject {
+  /// The **`voiceURI`** read-only property of the
+  /// [SpeechSynthesisVoice] interface returns the type of URI and location of
+  /// the speech synthesis service for this voice.
   external String get voiceURI;
+
+  /// The **`name`** read-only property of the
+  /// [SpeechSynthesisVoice] interface returns a human-readable name that
+  /// represents the voice.
   external String get name;
+
+  /// The **`lang`** read-only property of the [SpeechSynthesisVoice] interface
+  /// returns a BCP 47 language tag indicating the language of the voice.
   external String get lang;
+
+  /// The **`localService`** read-only property of the
+  /// [SpeechSynthesisVoice] interface returns a boolean value
+  /// indicating whether the voice is supplied by a local speech synthesizer
+  /// service
+  /// (`true`), or a remote speech synthesizer service (`false`.)
+  ///
+  /// This property is provided to allow differentiation in the case that some
+  /// voice options
+  /// are provided by a remote service; it is possible that remote voices might
+  /// have extra
+  /// latency, bandwidth or cost associated with them, so such distinction may
+  /// be useful.
   external bool get localService;
   @JS('default')
   external bool get default_;
diff --git a/lib/src/dom/storage.dart b/lib/src/dom/storage.dart
index e411f496..336dc33c 100644
--- a/lib/src/dom/storage.dart
+++ b/lib/src/dom/storage.dart
@@ -64,8 +64,8 @@ extension type StorageEstimate._(JSObject _) implements JSObject {
     int quota,
   });
 
-  external set usage(int value);
   external int get usage;
-  external set quota(int value);
+  external set usage(int value);
   external int get quota;
+  external set quota(int value);
 }
diff --git a/lib/src/dom/streams.dart b/lib/src/dom/streams.dart
index a91b4969..d276754b 100644
--- a/lib/src/dom/streams.dart
+++ b/lib/src/dom/streams.dart
@@ -142,6 +142,15 @@ extension type ReadableStream._(JSObject _) implements JSObject {
   /// will generally lock it for the duration, preventing other readers from
   /// locking it.
   external JSArray<ReadableStream> tee();
+
+  /// The **`locked`** read-only property of the [ReadableStream] interface
+  /// returns whether or not the readable stream is locked to a reader.
+  ///
+  /// A readable stream can have at most one active reader at a time, and is
+  /// locked to that reader until it is released.
+  /// A reader might be obtained using
+  /// [`ReadableStream.getReader()`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/getReader)
+  /// and released using the reader's `releaseLock()` method.
   external bool get locked;
 }
 extension type ReadableStreamGetReaderOptions._(JSObject _)
@@ -149,14 +158,14 @@ extension type ReadableStreamGetReaderOptions._(JSObject _)
   external factory ReadableStreamGetReaderOptions(
       {ReadableStreamReaderMode mode});
 
-  external set mode(ReadableStreamReaderMode value);
   external ReadableStreamReaderMode get mode;
+  external set mode(ReadableStreamReaderMode value);
 }
 extension type ReadableStreamIteratorOptions._(JSObject _) implements JSObject {
   external factory ReadableStreamIteratorOptions({bool preventCancel});
 
-  external set preventCancel(bool value);
   external bool get preventCancel;
+  external set preventCancel(bool value);
 }
 extension type ReadableWritablePair._(JSObject _) implements JSObject {
   external factory ReadableWritablePair({
@@ -164,10 +173,10 @@ extension type ReadableWritablePair._(JSObject _) implements JSObject {
     required WritableStream writable,
   });
 
-  external set readable(ReadableStream value);
   external ReadableStream get readable;
-  external set writable(WritableStream value);
+  external set readable(ReadableStream value);
   external WritableStream get writable;
+  external set writable(WritableStream value);
 }
 extension type StreamPipeOptions._(JSObject _) implements JSObject {
   external factory StreamPipeOptions({
@@ -177,14 +186,14 @@ extension type StreamPipeOptions._(JSObject _) implements JSObject {
     AbortSignal signal,
   });
 
-  external set preventClose(bool value);
   external bool get preventClose;
-  external set preventAbort(bool value);
+  external set preventClose(bool value);
   external bool get preventAbort;
-  external set preventCancel(bool value);
+  external set preventAbort(bool value);
   external bool get preventCancel;
-  external set signal(AbortSignal value);
+  external set preventCancel(bool value);
   external AbortSignal get signal;
+  external set signal(AbortSignal value);
 }
 extension type UnderlyingSource._(JSObject _) implements JSObject {
   external factory UnderlyingSource({
@@ -195,16 +204,16 @@ extension type UnderlyingSource._(JSObject _) implements JSObject {
     int autoAllocateChunkSize,
   });
 
-  external set start(UnderlyingSourceStartCallback value);
   external UnderlyingSourceStartCallback get start;
-  external set pull(UnderlyingSourcePullCallback value);
+  external set start(UnderlyingSourceStartCallback value);
   external UnderlyingSourcePullCallback get pull;
-  external set cancel(UnderlyingSourceCancelCallback value);
+  external set pull(UnderlyingSourcePullCallback value);
   external UnderlyingSourceCancelCallback get cancel;
-  external set type(ReadableStreamType value);
+  external set cancel(UnderlyingSourceCancelCallback value);
   external ReadableStreamType get type;
-  external set autoAllocateChunkSize(int value);
+  external set type(ReadableStreamType value);
   external int get autoAllocateChunkSize;
+  external set autoAllocateChunkSize(int value);
 }
 
 /// The **`ReadableStreamDefaultReader`** interface of the
@@ -272,6 +281,13 @@ extension type ReadableStreamDefaultReader._(JSObject _) implements JSObject {
   /// > `cancel()` method behaves the same as that for the associated stream
   /// > ([ReadableStream.cancel]).
   external JSPromise<JSAny?> cancel([JSAny? reason]);
+
+  /// The **`closed`** read-only property of the
+  /// [ReadableStreamDefaultReader] interface returns a
+  /// `Promise` that fulfills when the stream closes, or rejects if the
+  /// stream throws an error or the reader's lock is released. This property
+  /// enables you
+  /// to write code that responds to an end to the streaming process.
   external JSPromise<JSAny?> get closed;
 }
 extension type ReadableStreamReadResult._(JSObject _) implements JSObject {
@@ -280,10 +296,10 @@ extension type ReadableStreamReadResult._(JSObject _) implements JSObject {
     bool done,
   });
 
-  external set value(JSAny? value);
   external JSAny? get value;
-  external set done(bool value);
+  external set value(JSAny? value);
   external bool get done;
+  external set done(bool value);
 }
 
 /// The `ReadableStreamBYOBReader` interface of the
@@ -379,14 +395,21 @@ extension type ReadableStreamBYOBReader._(JSObject _) implements JSObject {
   /// > **Note:** If the reader is active, the `cancel()` method behaves the
   /// > same as that for the associated stream ([ReadableStream.cancel]).
   external JSPromise<JSAny?> cancel([JSAny? reason]);
+
+  /// The **`closed`** read-only property of the [ReadableStreamBYOBReader]
+  /// interface returns a `Promise` that fulfills when the stream closes, or
+  /// rejects if the stream throws an error or the reader's lock is released.
+  ///
+  /// This property enables you to write code that responds to an end to the
+  /// streaming process.
   external JSPromise<JSAny?> get closed;
 }
 extension type ReadableStreamBYOBReaderReadOptions._(JSObject _)
     implements JSObject {
   external factory ReadableStreamBYOBReaderReadOptions({int min});
 
-  external set min(int value);
   external int get min;
+  external set min(int value);
 }
 
 /// The **`ReadableStreamDefaultController`** interface of the
@@ -425,6 +448,10 @@ extension type ReadableStreamDefaultController._(JSObject _)
   /// > **Note:** The `error()` method can be called
   /// > more than once, and can be called when the stream is not readable.
   external void error([JSAny? e]);
+
+  /// The **`desiredSize`** read-only property of the
+  /// [ReadableStreamDefaultController] interface returns the desired size
+  /// required to fill the stream's internal queue.
   external num? get desiredSize;
 }
 
@@ -523,7 +550,31 @@ extension type ReadableByteStreamController._(JSObject _) implements JSObject {
   /// It can also be called from elsewhere to trigger a stream error, for
   /// example if another part of the system that the stream relies on fails.
   external void error([JSAny? e]);
+
+  /// The **`byobRequest`** read-only property of the
+  /// [ReadableByteStreamController] interface returns the current BYOB request,
+  /// or `null` if there are no pending requests.
+  ///
+  /// An underlying byte source should check this property, and use it to write
+  /// data to the stream if it exists (rather than using
+  /// [ReadableByteStreamController.enqueue]).
+  /// This will result in an efficient zero-byte transfer of the data to the
+  /// consumer.
   external ReadableStreamBYOBRequest? get byobRequest;
+
+  /// The **`desiredSize`** read-only property of the
+  /// [ReadableByteStreamController] interface returns the number of bytes
+  /// required to fill the stream's internal queue to its "desired size".
+  ///
+  /// The value is used by the stream to indicate a preferred flow rate to the
+  /// underlying source.
+  /// Sources that support throttling or pausing their inflow of data (not all
+  /// do!) should control the inflow such that `desiredSize` of the stream
+  /// buffer is kept positive and as close to zero as possible.
+  ///
+  /// The `desiredSize` is used to apply
+  /// [backpressure](https://developer.mozilla.org/en-US/docs/Web/API/Streams_API/Concepts#backpressure)
+  /// from downstream consumers.
   external num? get desiredSize;
 }
 
@@ -603,6 +654,9 @@ extension type ReadableStreamBYOBRequest._(JSObject _) implements JSObject {
   /// thread, and wait for the worker to transfer it back once it has been
   /// filled.
   external void respondWithNewView(ArrayBufferView view);
+
+  /// The **`view`** getter property of the [ReadableStreamBYOBRequest]
+  /// interface returns the current view.
   external ArrayBufferView? get view;
 }
 
@@ -646,6 +700,10 @@ extension type WritableStream._(JSObject _) implements JSObject {
   /// While the stream is locked, no other writer can be acquired until this one
   /// is released.
   external WritableStreamDefaultWriter getWriter();
+
+  /// The **`locked`** read-only property of the [WritableStream] interface
+  /// returns a boolean indicating whether the `WritableStream` is locked to a
+  /// writer.
   external bool get locked;
 }
 extension type UnderlyingSink._(JSObject _) implements JSObject {
@@ -657,16 +715,16 @@ extension type UnderlyingSink._(JSObject _) implements JSObject {
     JSAny? type,
   });
 
-  external set start(UnderlyingSinkStartCallback value);
   external UnderlyingSinkStartCallback get start;
-  external set write(UnderlyingSinkWriteCallback value);
+  external set start(UnderlyingSinkStartCallback value);
   external UnderlyingSinkWriteCallback get write;
-  external set close(UnderlyingSinkCloseCallback value);
+  external set write(UnderlyingSinkWriteCallback value);
   external UnderlyingSinkCloseCallback get close;
-  external set abort(UnderlyingSinkAbortCallback value);
+  external set close(UnderlyingSinkCloseCallback value);
   external UnderlyingSinkAbortCallback get abort;
-  external set type(JSAny? value);
+  external set abort(UnderlyingSinkAbortCallback value);
   external JSAny? get type;
+  external set type(JSAny? value);
 }
 
 /// The **`WritableStreamDefaultWriter`** interface of the
@@ -725,8 +783,24 @@ extension type WritableStreamDefaultWriter._(JSObject _) implements JSObject {
   /// its ultimate
   /// destination.
   external JSPromise<JSAny?> write([JSAny? chunk]);
+
+  /// The **`closed`** read-only property of the
+  /// [WritableStreamDefaultWriter] interface returns a
+  /// `Promise` that fulfills if the stream becomes closed, or rejects if
+  /// the stream errors or the writer's lock is released.
   external JSPromise<JSAny?> get closed;
+
+  /// The **`desiredSize`** read-only property of the
+  /// [WritableStreamDefaultWriter] interface returns the desired size required
+  /// to fill the stream's internal queue.
   external num? get desiredSize;
+
+  /// The **`ready`** read-only property of the
+  /// [WritableStreamDefaultWriter] interface returns a `Promise`
+  /// that resolves when the desired size of the stream's internal queue
+  /// transitions from
+  /// non-positive to positive, signaling that it is no longer applying
+  /// backpressure.
   external JSPromise<JSAny?> get ready;
 }
 
@@ -754,6 +828,10 @@ extension type WritableStreamDefaultController._(JSObject _)
   /// interactions with
   /// the underlying sink.
   external void error([JSAny? e]);
+
+  /// The read-only **`signal`** property of the
+  /// [WritableStreamDefaultController] interface returns the [AbortSignal]
+  /// associated with the controller.
   external AbortSignal get signal;
 }
 
@@ -786,7 +864,14 @@ extension type TransformStream._(JSObject _) implements JSObject {
     QueuingStrategy readableStrategy,
   ]);
 
+  /// The **`readable`** read-only property of the [TransformStream] interface
+  /// returns the [ReadableStream] instance controlled by this
+  /// `TransformStream`.
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [TransformStream] interface
+  /// returns the [WritableStream] instance controlled by this
+  /// `TransformStream`.
   external WritableStream get writable;
 }
 extension type Transformer._(JSObject _) implements JSObject {
@@ -799,18 +884,18 @@ extension type Transformer._(JSObject _) implements JSObject {
     JSAny? writableType,
   });
 
-  external set start(TransformerStartCallback value);
   external TransformerStartCallback get start;
-  external set transform(TransformerTransformCallback value);
+  external set start(TransformerStartCallback value);
   external TransformerTransformCallback get transform;
-  external set flush(TransformerFlushCallback value);
+  external set transform(TransformerTransformCallback value);
   external TransformerFlushCallback get flush;
-  external set cancel(TransformerCancelCallback value);
+  external set flush(TransformerFlushCallback value);
   external TransformerCancelCallback get cancel;
-  external set readableType(JSAny? value);
+  external set cancel(TransformerCancelCallback value);
   external JSAny? get readableType;
-  external set writableType(JSAny? value);
+  external set readableType(JSAny? value);
   external JSAny? get writableType;
+  external set writableType(JSAny? value);
 }
 
 /// The **`TransformStreamDefaultController`** interface of the
@@ -847,6 +932,20 @@ extension type TransformStreamDefaultController._(JSObject _)
   /// interface closes the readable side and errors the writable side of the
   /// stream.
   external void terminate();
+
+  /// The **`desiredSize`** read-only property of the
+  /// [TransformStreamDefaultController] interface returns the desired size to
+  /// fill the queue of the associated [ReadableStream].
+  ///
+  /// The internal queue of a `ReadableStream` contains chunks that have been
+  /// enqueued, but not yet read. The browser determines the **desired size** to
+  /// fill the stream, and it is this value returned by the `desiredSize`
+  /// property.
+  ///
+  /// If the `desiredSize` is `0` then the queue is full. Therefore you can use
+  /// this information to
+  /// [manually apply backpressure](https://developer.mozilla.org/en-US/docs/Web/API/Streams_API/Concepts#backpressure)
+  /// to manage the queue.
   external num? get desiredSize;
 }
 extension type QueuingStrategy._(JSObject _) implements JSObject {
@@ -855,16 +954,16 @@ extension type QueuingStrategy._(JSObject _) implements JSObject {
     QueuingStrategySize size,
   });
 
-  external set highWaterMark(num value);
   external num get highWaterMark;
-  external set size(QueuingStrategySize value);
+  external set highWaterMark(num value);
   external QueuingStrategySize get size;
+  external set size(QueuingStrategySize value);
 }
 extension type QueuingStrategyInit._(JSObject _) implements JSObject {
   external factory QueuingStrategyInit({required num highWaterMark});
 
-  external set highWaterMark(num value);
   external num get highWaterMark;
+  external set highWaterMark(num value);
 }
 
 /// The **`ByteLengthQueuingStrategy`** interface of the
@@ -879,7 +978,25 @@ extension type QueuingStrategyInit._(JSObject _) implements JSObject {
 extension type ByteLengthQueuingStrategy._(JSObject _) implements JSObject {
   external factory ByteLengthQueuingStrategy(QueuingStrategyInit init);
 
+  /// The read-only **`ByteLengthQueuingStrategy.highWaterMark`** property
+  /// returns the total number of bytes that can be contained in the internal
+  /// queue before
+  /// [backpressure](https://developer.mozilla.org/en-US/docs/Web/API/Streams_API/Concepts#backpressure)
+  /// is applied.
+  ///
+  /// > **Note:** Unlike
+  /// > [`CountQueuingStrategy()`](https://developer.mozilla.org/en-US/docs/Web/API/CountQueuingStrategy/CountQueuingStrategy)
+  /// > where the `highWaterMark` property specifies a simple count of the
+  /// > number of chunks, with `ByteLengthQueuingStrategy()`, the
+  /// > `highWaterMark` parameter specifies a number of _bytes_ — specifically,
+  /// > given a stream of chunks, how many bytes worth of those chunks (rather
+  /// > than a count of how many of those chunks) can be contained in the
+  /// > internal queue before backpressure is applied.
   external num get highWaterMark;
+
+  /// The **`size()`** method of the
+  /// [ByteLengthQueuingStrategy] interface returns the given chunk's
+  /// `byteLength` property.
   external JSFunction get size;
 }
 
@@ -895,6 +1012,13 @@ extension type ByteLengthQueuingStrategy._(JSObject _) implements JSObject {
 extension type CountQueuingStrategy._(JSObject _) implements JSObject {
   external factory CountQueuingStrategy(QueuingStrategyInit init);
 
+  /// The read-only **`CountQueuingStrategy.highWaterMark`** property returns
+  /// the total number of chunks that can be contained in the internal queue
+  /// before backpressure is applied.
   external num get highWaterMark;
+
+  /// The **`size()`** method of the
+  /// [CountQueuingStrategy] interface always returns `1`, so that the
+  /// total queue size is a count of the number of chunks in the queue.
   external JSFunction get size;
 }
diff --git a/lib/src/dom/svg.dart b/lib/src/dom/svg.dart
index 6927685e..4d4d4409 100644
--- a/lib/src/dom/svg.dart
+++ b/lib/src/dom/svg.dart
@@ -32,216 +32,256 @@ extension type SVGElement._(JSObject _) implements Element, JSObject {
   external void blur();
   external SVGSVGElement? get ownerSVGElement;
   external SVGElement? get viewportElement;
-  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationstart;
-  external set onanimationiteration(EventHandler value);
+  external set onanimationstart(EventHandler value);
   external EventHandler get onanimationiteration;
-  external set onanimationend(EventHandler value);
+  external set onanimationiteration(EventHandler value);
   external EventHandler get onanimationend;
-  external set onanimationcancel(EventHandler value);
+  external set onanimationend(EventHandler value);
   external EventHandler get onanimationcancel;
-  external set ontransitionrun(EventHandler value);
+  external set onanimationcancel(EventHandler value);
   external EventHandler get ontransitionrun;
-  external set ontransitionstart(EventHandler value);
+  external set ontransitionrun(EventHandler value);
   external EventHandler get ontransitionstart;
-  external set ontransitionend(EventHandler value);
+  external set ontransitionstart(EventHandler value);
   external EventHandler get ontransitionend;
-  external set ontransitioncancel(EventHandler value);
+  external set ontransitionend(EventHandler value);
   external EventHandler get ontransitioncancel;
-  external set onabort(EventHandler value);
+  external set ontransitioncancel(EventHandler value);
   external EventHandler get onabort;
-  external set onauxclick(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onauxclick;
-  external set onbeforeinput(EventHandler value);
+  external set onauxclick(EventHandler value);
   external EventHandler get onbeforeinput;
-  external set onbeforematch(EventHandler value);
+  external set onbeforeinput(EventHandler value);
   external EventHandler get onbeforematch;
-  external set onbeforetoggle(EventHandler value);
+  external set onbeforematch(EventHandler value);
   external EventHandler get onbeforetoggle;
-  external set onblur(EventHandler value);
+  external set onbeforetoggle(EventHandler value);
   external EventHandler get onblur;
-  external set oncancel(EventHandler value);
+  external set onblur(EventHandler value);
   external EventHandler get oncancel;
-  external set oncanplay(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get oncanplay;
-  external set oncanplaythrough(EventHandler value);
+  external set oncanplay(EventHandler value);
   external EventHandler get oncanplaythrough;
-  external set onchange(EventHandler value);
+  external set oncanplaythrough(EventHandler value);
   external EventHandler get onchange;
-  external set onclick(EventHandler value);
+  external set onchange(EventHandler value);
   external EventHandler get onclick;
-  external set onclose(EventHandler value);
+  external set onclick(EventHandler value);
   external EventHandler get onclose;
-  external set oncontextlost(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get oncontextlost;
-  external set oncontextmenu(EventHandler value);
+  external set oncontextlost(EventHandler value);
   external EventHandler get oncontextmenu;
-  external set oncontextrestored(EventHandler value);
+  external set oncontextmenu(EventHandler value);
   external EventHandler get oncontextrestored;
-  external set oncopy(EventHandler value);
+  external set oncontextrestored(EventHandler value);
   external EventHandler get oncopy;
-  external set oncuechange(EventHandler value);
+  external set oncopy(EventHandler value);
   external EventHandler get oncuechange;
-  external set oncut(EventHandler value);
+  external set oncuechange(EventHandler value);
   external EventHandler get oncut;
-  external set ondblclick(EventHandler value);
+  external set oncut(EventHandler value);
   external EventHandler get ondblclick;
-  external set ondrag(EventHandler value);
+  external set ondblclick(EventHandler value);
   external EventHandler get ondrag;
-  external set ondragend(EventHandler value);
+  external set ondrag(EventHandler value);
   external EventHandler get ondragend;
-  external set ondragenter(EventHandler value);
+  external set ondragend(EventHandler value);
   external EventHandler get ondragenter;
-  external set ondragleave(EventHandler value);
+  external set ondragenter(EventHandler value);
   external EventHandler get ondragleave;
-  external set ondragover(EventHandler value);
+  external set ondragleave(EventHandler value);
   external EventHandler get ondragover;
-  external set ondragstart(EventHandler value);
+  external set ondragover(EventHandler value);
   external EventHandler get ondragstart;
-  external set ondrop(EventHandler value);
+  external set ondragstart(EventHandler value);
   external EventHandler get ondrop;
-  external set ondurationchange(EventHandler value);
+  external set ondrop(EventHandler value);
   external EventHandler get ondurationchange;
-  external set onemptied(EventHandler value);
+  external set ondurationchange(EventHandler value);
   external EventHandler get onemptied;
-  external set onended(EventHandler value);
+  external set onemptied(EventHandler value);
   external EventHandler get onended;
-  external set onerror(OnErrorEventHandler value);
+  external set onended(EventHandler value);
   external OnErrorEventHandler get onerror;
-  external set onfocus(EventHandler value);
+  external set onerror(OnErrorEventHandler value);
   external EventHandler get onfocus;
-  external set onformdata(EventHandler value);
+  external set onfocus(EventHandler value);
   external EventHandler get onformdata;
-  external set oninput(EventHandler value);
+  external set onformdata(EventHandler value);
   external EventHandler get oninput;
-  external set oninvalid(EventHandler value);
+  external set oninput(EventHandler value);
   external EventHandler get oninvalid;
-  external set onkeydown(EventHandler value);
+  external set oninvalid(EventHandler value);
   external EventHandler get onkeydown;
-  external set onkeypress(EventHandler value);
+  external set onkeydown(EventHandler value);
   external EventHandler get onkeypress;
-  external set onkeyup(EventHandler value);
+  external set onkeypress(EventHandler value);
   external EventHandler get onkeyup;
-  external set onload(EventHandler value);
+  external set onkeyup(EventHandler value);
   external EventHandler get onload;
-  external set onloadeddata(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get onloadeddata;
-  external set onloadedmetadata(EventHandler value);
+  external set onloadeddata(EventHandler value);
   external EventHandler get onloadedmetadata;
-  external set onloadstart(EventHandler value);
+  external set onloadedmetadata(EventHandler value);
   external EventHandler get onloadstart;
-  external set onmousedown(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onmousedown;
-  external set onmouseenter(EventHandler value);
+  external set onmousedown(EventHandler value);
   external EventHandler get onmouseenter;
-  external set onmouseleave(EventHandler value);
+  external set onmouseenter(EventHandler value);
   external EventHandler get onmouseleave;
-  external set onmousemove(EventHandler value);
+  external set onmouseleave(EventHandler value);
   external EventHandler get onmousemove;
-  external set onmouseout(EventHandler value);
+  external set onmousemove(EventHandler value);
   external EventHandler get onmouseout;
-  external set onmouseover(EventHandler value);
+  external set onmouseout(EventHandler value);
   external EventHandler get onmouseover;
-  external set onmouseup(EventHandler value);
+  external set onmouseover(EventHandler value);
   external EventHandler get onmouseup;
-  external set onpaste(EventHandler value);
+  external set onmouseup(EventHandler value);
   external EventHandler get onpaste;
-  external set onpause(EventHandler value);
+  external set onpaste(EventHandler value);
   external EventHandler get onpause;
-  external set onplay(EventHandler value);
+  external set onpause(EventHandler value);
   external EventHandler get onplay;
-  external set onplaying(EventHandler value);
+  external set onplay(EventHandler value);
   external EventHandler get onplaying;
-  external set onprogress(EventHandler value);
+  external set onplaying(EventHandler value);
   external EventHandler get onprogress;
-  external set onratechange(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onratechange;
-  external set onreset(EventHandler value);
+  external set onratechange(EventHandler value);
   external EventHandler get onreset;
-  external set onresize(EventHandler value);
+  external set onreset(EventHandler value);
   external EventHandler get onresize;
-  external set onscroll(EventHandler value);
+  external set onresize(EventHandler value);
   external EventHandler get onscroll;
-  external set onscrollend(EventHandler value);
+  external set onscroll(EventHandler value);
   external EventHandler get onscrollend;
-  external set onsecuritypolicyviolation(EventHandler value);
+  external set onscrollend(EventHandler value);
   external EventHandler get onsecuritypolicyviolation;
-  external set onseeked(EventHandler value);
+  external set onsecuritypolicyviolation(EventHandler value);
   external EventHandler get onseeked;
-  external set onseeking(EventHandler value);
+  external set onseeked(EventHandler value);
   external EventHandler get onseeking;
-  external set onselect(EventHandler value);
+  external set onseeking(EventHandler value);
   external EventHandler get onselect;
-  external set onslotchange(EventHandler value);
+  external set onselect(EventHandler value);
   external EventHandler get onslotchange;
-  external set onstalled(EventHandler value);
+  external set onslotchange(EventHandler value);
   external EventHandler get onstalled;
-  external set onsubmit(EventHandler value);
+  external set onstalled(EventHandler value);
   external EventHandler get onsubmit;
-  external set onsuspend(EventHandler value);
+  external set onsubmit(EventHandler value);
   external EventHandler get onsuspend;
-  external set ontimeupdate(EventHandler value);
+  external set onsuspend(EventHandler value);
   external EventHandler get ontimeupdate;
-  external set ontoggle(EventHandler value);
+  external set ontimeupdate(EventHandler value);
   external EventHandler get ontoggle;
-  external set onvolumechange(EventHandler value);
+  external set ontoggle(EventHandler value);
   external EventHandler get onvolumechange;
-  external set onwaiting(EventHandler value);
+  external set onvolumechange(EventHandler value);
   external EventHandler get onwaiting;
-  external set onwebkitanimationend(EventHandler value);
+  external set onwaiting(EventHandler value);
   external EventHandler get onwebkitanimationend;
-  external set onwebkitanimationiteration(EventHandler value);
+  external set onwebkitanimationend(EventHandler value);
   external EventHandler get onwebkitanimationiteration;
-  external set onwebkitanimationstart(EventHandler value);
+  external set onwebkitanimationiteration(EventHandler value);
   external EventHandler get onwebkitanimationstart;
-  external set onwebkittransitionend(EventHandler value);
+  external set onwebkitanimationstart(EventHandler value);
   external EventHandler get onwebkittransitionend;
-  external set onwheel(EventHandler value);
+  external set onwebkittransitionend(EventHandler value);
   external EventHandler get onwheel;
-  external set onpointerover(EventHandler value);
+  external set onwheel(EventHandler value);
   external EventHandler get onpointerover;
-  external set onpointerenter(EventHandler value);
+  external set onpointerover(EventHandler value);
   external EventHandler get onpointerenter;
-  external set onpointerdown(EventHandler value);
+  external set onpointerenter(EventHandler value);
   external EventHandler get onpointerdown;
-  external set onpointermove(EventHandler value);
+  external set onpointerdown(EventHandler value);
   external EventHandler get onpointermove;
-  external set onpointerrawupdate(EventHandler value);
+  external set onpointermove(EventHandler value);
   external EventHandler get onpointerrawupdate;
-  external set onpointerup(EventHandler value);
+  external set onpointerrawupdate(EventHandler value);
   external EventHandler get onpointerup;
-  external set onpointercancel(EventHandler value);
+  external set onpointerup(EventHandler value);
   external EventHandler get onpointercancel;
-  external set onpointerout(EventHandler value);
+  external set onpointercancel(EventHandler value);
   external EventHandler get onpointerout;
-  external set onpointerleave(EventHandler value);
+  external set onpointerout(EventHandler value);
   external EventHandler get onpointerleave;
-  external set ongotpointercapture(EventHandler value);
+  external set onpointerleave(EventHandler value);
   external EventHandler get ongotpointercapture;
-  external set onlostpointercapture(EventHandler value);
+  external set ongotpointercapture(EventHandler value);
   external EventHandler get onlostpointercapture;
-  external set onselectstart(EventHandler value);
+  external set onlostpointercapture(EventHandler value);
   external EventHandler get onselectstart;
-  external set onselectionchange(EventHandler value);
+  external set onselectstart(EventHandler value);
   external EventHandler get onselectionchange;
-  external set ontouchstart(EventHandler value);
+  external set onselectionchange(EventHandler value);
   external EventHandler get ontouchstart;
-  external set ontouchend(EventHandler value);
+  external set ontouchstart(EventHandler value);
   external EventHandler get ontouchend;
-  external set ontouchmove(EventHandler value);
+  external set ontouchend(EventHandler value);
   external EventHandler get ontouchmove;
-  external set ontouchcancel(EventHandler value);
+  external set ontouchmove(EventHandler value);
   external EventHandler get ontouchcancel;
+  external set ontouchcancel(EventHandler value);
   external SVGElement? get correspondingElement;
   external SVGUseElement? get correspondingUseElement;
   external DOMStringMap get dataset;
-  external set nonce(String value);
   external String get nonce;
-  external set autofocus(bool value);
+  external set nonce(String value);
   external bool get autofocus;
-  external set tabIndex(int value);
+  external set autofocus(bool value);
   external int get tabIndex;
+  external set tabIndex(int value);
   external StylePropertyMap get attributeStyleMap;
+
+  /// The read-only **`style`** property of the [SVGElement] returns the
+  /// _inline_ style of an element in the form of a live [CSSStyleDeclaration]
+  /// object that contains a list of all styles properties for that element with
+  /// values assigned only for the attributes that are defined in the element's
+  /// inline
+  /// [`style`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/style)
+  /// attribute.
+  ///
+  /// Shorthand properties are expanded. If you set `style="border-top: 1px
+  /// solid black"`, the longhand properties (, , and ) are set instead.
+  ///
+  /// This property is read-only, meaning it is not possible to assign a
+  /// [CSSStyleDeclaration] object to it. Nevertheless, it is possible to set an
+  /// inline style by assigning a _string_ directly to the `style` property. In
+  /// this case the string is forwarded to [CSSStyleDeclaration.cssText]. Using
+  /// `style` in this manner will completely overwrite all inline styles on the
+  /// element.
+  ///
+  /// Therefore, to add specific styles to an element without altering other
+  /// style values, it is generally preferable to set individual properties on
+  /// the [CSSStyleDeclaration] object. For example, you can write
+  /// `element.style.backgroundColor = "red"`.
+  ///
+  /// A style declaration is reset by setting it to `null` or an empty string,
+  /// e.g., `elt.style.color = null`.
+  ///
+  /// > **Note:** CSS property names are converted to JavaScript identifier with
+  /// > these rules:
+  /// >
+  /// > - If the property is made of one word, it remains as it is: `height`
+  /// > stays as is (in lowercase).
+  /// > - If the property is made of several words, separated by dashes, the
+  /// > dashes are removed and it is converted to : `background-attachment`
+  /// > becomes `backgroundAttachment`.
+  /// > - The property `float`, being a reserved JavaScript keyword, is
+  /// > converted to `cssFloat`.
+  /// >
+  /// > The `style` property has the same priority in the CSS cascade as an
+  /// > inline style declaration set via the `style` attribute.
   external CSSStyleDeclaration get style;
 }
 
@@ -257,14 +297,14 @@ extension type SVGBoundingBoxOptions._(JSObject _) implements JSObject {
     bool clipped,
   });
 
-  external set fill(bool value);
   external bool get fill;
-  external set stroke(bool value);
+  external set fill(bool value);
   external bool get stroke;
-  external set markers(bool value);
+  external set stroke(bool value);
   external bool get markers;
-  external set clipped(bool value);
+  external set markers(bool value);
   external bool get clipped;
+  external set clipped(bool value);
 }
 
 /// The **`SVGGraphicsElement`** interface represents SVG elements whose primary
@@ -339,6 +379,10 @@ extension type SVGGeometryElement._(JSObject _)
   /// **`SVGGeometryElement.getPointAtLength()`** method returns the
   /// point at a given distance along the path.
   external DOMPoint getPointAtLength(num distance);
+
+  /// The **`SVGGeometryElement.pathLength`** property reflects the
+  /// `pathLength` attribute and returns the total length of the path, in user
+  /// units.
   external SVGAnimatedNumber get pathLength;
 }
 
@@ -352,8 +396,8 @@ extension type SVGGeometryElement._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGNumber).
 extension type SVGNumber._(JSObject _) implements JSObject {
-  external set value(num value);
   external num get value;
+  external set value(num value);
 }
 
 ///
@@ -380,12 +424,12 @@ extension type SVGLength._(JSObject _) implements JSObject {
   );
   external void convertToSpecifiedUnits(int unitType);
   external int get unitType;
-  external set value(num value);
   external num get value;
-  external set valueInSpecifiedUnits(num value);
+  external set value(num value);
   external num get valueInSpecifiedUnits;
-  external set valueAsString(String value);
+  external set valueInSpecifiedUnits(num value);
   external String get valueAsString;
+  external set valueAsString(String value);
 }
 
 /// The `SVGAngle` interface is used to represent a value that can be an  or
@@ -423,12 +467,12 @@ extension type SVGAngle._(JSObject _) implements JSObject {
   );
   external void convertToSpecifiedUnits(int unitType);
   external int get unitType;
-  external set value(num value);
   external num get value;
-  external set valueInSpecifiedUnits(num value);
+  external set value(num value);
   external num get valueInSpecifiedUnits;
-  external set valueAsString(String value);
+  external set valueInSpecifiedUnits(num value);
   external String get valueAsString;
+  external set valueAsString(String value);
 }
 
 ///
@@ -510,8 +554,8 @@ extension type SVGStringList._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedBoolean).
 extension type SVGAnimatedBoolean._(JSObject _) implements JSObject {
-  external set baseVal(bool value);
   external bool get baseVal;
+  external set baseVal(bool value);
   external bool get animVal;
 }
 
@@ -523,8 +567,14 @@ extension type SVGAnimatedBoolean._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedEnumeration).
 extension type SVGAnimatedEnumeration._(JSObject _) implements JSObject {
-  external set baseVal(int value);
+  /// The **`baseVal`** property of the [SVGAnimatedEnumeration] interface
+  /// contains the initial value of an SVG enumeration.
   external int get baseVal;
+  external set baseVal(int value);
+
+  /// The **`animVal`** property of the [SVGAnimatedEnumeration] interface
+  /// contains the current value of an SVG enumeration. If there is no
+  /// animation, it is the same value as the [SVGAnimatedEnumeration.baseVal].
   external int get animVal;
 }
 
@@ -535,8 +585,8 @@ extension type SVGAnimatedEnumeration._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedInteger).
 extension type SVGAnimatedInteger._(JSObject _) implements JSObject {
-  external set baseVal(int value);
   external int get baseVal;
+  external set baseVal(int value);
   external int get animVal;
 }
 
@@ -547,8 +597,8 @@ extension type SVGAnimatedInteger._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedNumber).
 extension type SVGAnimatedNumber._(JSObject _) implements JSObject {
-  external set baseVal(num value);
   external num get baseVal;
+  external set baseVal(num value);
   external num get animVal;
 }
 
@@ -560,7 +610,13 @@ extension type SVGAnimatedNumber._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedLength).
 extension type SVGAnimatedLength._(JSObject _) implements JSObject {
+  /// The **`baseVal`** property of the [SVGAnimatedLength] interface contains
+  /// the initial value of an SVG enumeration.
   external SVGLength get baseVal;
+
+  /// The **`animVal`** property of the [SVGAnimatedLength] interface contains
+  /// the current value of an SVG enumeration. If there is no animation, it is
+  /// the same value as the [SVGAnimatedLength.baseVal].
   external SVGLength get animVal;
 }
 
@@ -584,8 +640,19 @@ extension type SVGAnimatedAngle._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/SVGAnimatedString).
 extension type SVGAnimatedString._(JSObject _) implements JSObject {
-  external set baseVal(String value);
+  /// BaseVal gets or sets the base value of the given attribute before any
+  /// animations are applied. The base value of the given attribute before
+  /// applying any animations. Setter throws DOMException.
   external String get baseVal;
+  external set baseVal(String value);
+
+  /// AnimVal attribute or animVal property contains the same value as the
+  /// [SVGAnimatedString.baseVal] property. If the given attribute or property
+  /// is being animated, contains the current animated value of the attribute or
+  /// property. If the given attribute or property is not currently being
+  /// animated, then it contains the same value as baseVal
+  ///
+  /// > **Note:** The **animVal** property is a read only property.
   external String get animVal;
 }
 
@@ -732,49 +799,49 @@ extension type SVGSVGElement._(JSObject _)
   external SVGAnimatedLength get y;
   external SVGAnimatedLength get width;
   external SVGAnimatedLength get height;
-  external set currentScale(num value);
   external num get currentScale;
+  external set currentScale(num value);
   external DOMPointReadOnly get currentTranslate;
   external SVGAnimatedRect get viewBox;
   external SVGAnimatedPreserveAspectRatio get preserveAspectRatio;
-  external set ongamepadconnected(EventHandler value);
   external EventHandler get ongamepadconnected;
-  external set ongamepaddisconnected(EventHandler value);
+  external set ongamepadconnected(EventHandler value);
   external EventHandler get ongamepaddisconnected;
-  external set onafterprint(EventHandler value);
+  external set ongamepaddisconnected(EventHandler value);
   external EventHandler get onafterprint;
-  external set onbeforeprint(EventHandler value);
+  external set onafterprint(EventHandler value);
   external EventHandler get onbeforeprint;
-  external set onbeforeunload(OnBeforeUnloadEventHandler value);
+  external set onbeforeprint(EventHandler value);
   external OnBeforeUnloadEventHandler get onbeforeunload;
-  external set onhashchange(EventHandler value);
+  external set onbeforeunload(OnBeforeUnloadEventHandler value);
   external EventHandler get onhashchange;
-  external set onlanguagechange(EventHandler value);
+  external set onhashchange(EventHandler value);
   external EventHandler get onlanguagechange;
-  external set onmessage(EventHandler value);
+  external set onlanguagechange(EventHandler value);
   external EventHandler get onmessage;
-  external set onmessageerror(EventHandler value);
+  external set onmessage(EventHandler value);
   external EventHandler get onmessageerror;
-  external set onoffline(EventHandler value);
+  external set onmessageerror(EventHandler value);
   external EventHandler get onoffline;
-  external set ononline(EventHandler value);
+  external set onoffline(EventHandler value);
   external EventHandler get ononline;
-  external set onpagehide(EventHandler value);
+  external set ononline(EventHandler value);
   external EventHandler get onpagehide;
-  external set onpagereveal(EventHandler value);
+  external set onpagehide(EventHandler value);
   external EventHandler get onpagereveal;
-  external set onpageshow(EventHandler value);
+  external set onpagereveal(EventHandler value);
   external EventHandler get onpageshow;
-  external set onpopstate(EventHandler value);
+  external set onpageshow(EventHandler value);
   external EventHandler get onpopstate;
-  external set onrejectionhandled(EventHandler value);
+  external set onpopstate(EventHandler value);
   external EventHandler get onrejectionhandled;
-  external set onstorage(EventHandler value);
+  external set onrejectionhandled(EventHandler value);
   external EventHandler get onstorage;
-  external set onunhandledrejection(EventHandler value);
+  external set onstorage(EventHandler value);
   external EventHandler get onunhandledrejection;
-  external set onunload(EventHandler value);
+  external set onunhandledrejection(EventHandler value);
   external EventHandler get onunload;
+  external set onunload(EventHandler value);
 }
 
 /// The **`SVGGElement`** interface corresponds to the  element.
@@ -938,12 +1005,36 @@ extension type SVGStyleElement._(JSObject _) implements SVGElement, JSObject {
           'style',
         );
 
-  external set type(String value);
+  /// The **`SVGStyleElement.type`** property returns the type of the current
+  /// style.
+  /// The value reflects the associated SVG `<style>` element's
+  /// [`type`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/style#type)
+  /// attribute.
+  ///
+  /// Authors should not use this property or rely on the value.
   external String get type;
-  external set media(String value);
+  external set type(String value);
+
+  /// The **`SVGStyleElement.media`** property is a media query string
+  /// corresponding to the
+  /// [`media`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/style#media)
+  /// attribute of the given SVG style element.
+  ///
+  /// The query must be matched for the style to apply.
   external String get media;
-  external set title(String value);
+  external set media(String value);
+
+  /// The **`SVGStyleElement.title`** property is a string corresponding to the
+  /// [`title`](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/style#title)
+  /// attribute of the given SVG style element.
+  /// It may be used to select between
+  /// [alternate style sheets](https://developer.mozilla.org/en-US/docs/Web/CSS/Alternative_style_sheets).
   external String get title;
+  external set title(String value);
+
+  /// The **`SVGStyleElement.sheet`** read-only property returns the
+  /// [CSSStyleSheet] corresponding to the given SVG style element, or `null` if
+  /// there is none.
   external CSSStyleSheet? get sheet;
 }
 
@@ -1040,10 +1131,10 @@ extension type SVGPreserveAspectRatio._(JSObject _) implements JSObject {
   external static int get SVG_MEETORSLICE_UNKNOWN;
   external static int get SVG_MEETORSLICE_MEET;
   external static int get SVG_MEETORSLICE_SLICE;
-  external set align(int value);
   external int get align;
-  external set meetOrSlice(int value);
+  external set align(int value);
   external int get meetOrSlice;
+  external set meetOrSlice(int value);
 }
 
 ///
@@ -1118,8 +1209,25 @@ extension type SVGCircleElement._(JSObject _)
           'circle',
         );
 
+  /// The **`cx`** read-only property of the [SVGCircleElement] interface
+  /// reflects the `cx` attribute of a  element and by that defines the
+  /// x-coordinate of the circle's center.<
+  ///
+  /// If unspecified, the effect is as if the value is set to `0`.
   external SVGAnimatedLength get cx;
+
+  /// The **`cy`** read-only property of the [SVGCircleElement] interface
+  /// reflects the `cy` attribute of a  element and by that defines the
+  /// y-coordinate of the circle's center.
+  ///
+  /// If unspecified, the effect is as if the value is set to `0`.
   external SVGAnimatedLength get cy;
+
+  /// The **`r`** read-only property of the [SVGCircleElement] interface
+  /// reflects the `r` attribute of a  element and by that defines the radius of
+  /// the circle.
+  ///
+  /// If unspecified, the effect is as if the value is set to `0`.
   external SVGAnimatedLength get r;
 }
 
@@ -1210,7 +1318,13 @@ extension type SVGPointList._(JSObject _) implements JSObject {
   /// The **`appendItem()`** method of the [SVGPointList] interface adds a
   /// [SVGPoint] to the end of the list.
   external DOMPoint appendItem(DOMPoint newItem);
+
+  /// The **`length`** read-only property of the [SVGPointList] interface
+  /// returns the number of items in the list.
   external int get length;
+
+  /// The **`numberOfItems`** read-only property of the [SVGPointList] interface
+  /// returns the number of items in the list.
   external int get numberOfItems;
 }
 
@@ -1378,13 +1492,38 @@ extension type SVGImageElement._(JSObject _)
           'image',
         );
 
+  /// The **`x`** read-only property of the
+  /// [SVGImageElement] interface returns an [SVGAnimatedLength]
+  /// corresponding to the `x` attribute of the given
+  /// element.
   external SVGAnimatedLength get x;
+
+  /// The **`y`** read-only property of the
+  /// [SVGImageElement] interface returns an [SVGAnimatedLength]
+  /// corresponding to the `y` attribute of the given
+  /// element.
   external SVGAnimatedLength get y;
+
+  /// The **`width`** read-only property of the
+  /// [SVGImageElement] interface returns an [SVGAnimatedLength]
+  /// corresponding to the `width` attribute of the given
+  /// element.
   external SVGAnimatedLength get width;
+
+  /// The **`height`** read-only property of the
+  /// [SVGImageElement] interface returns an [SVGAnimatedLength]
+  /// corresponding to the `height` attribute of the given
+  /// element.
   external SVGAnimatedLength get height;
+
+  /// The **`preserveAspectRatio`** read-only
+  /// property of the [SVGImageElement] interface returns an
+  /// [SVGAnimatedPreserveAspectRatio] corresponding to the
+  /// `preserveAspectRatio` attribute of the given
+  /// element.
   external SVGAnimatedPreserveAspectRatio get preserveAspectRatio;
-  external set crossOrigin(String? value);
   external String? get crossOrigin;
+  external set crossOrigin(String? value);
   external SVGAnimatedString get href;
 }
 
@@ -1444,16 +1583,58 @@ extension type SVGMarkerElement._(JSObject _) implements SVGElement, JSObject {
   /// sets the value of the `orient` attribute to the value in the [SVGAngle]
   /// passed in.
   external void setOrientToAngle(SVGAngle angle);
+
+  /// The **`refX`** read-only property of the [SVGMarkerElement] interface
+  /// returns an [SVGAnimatedLength] object containing the value of the `refX`
+  /// attribute of the .
   external SVGAnimatedLength get refX;
+
+  /// The **`refY`** read-only property of the [SVGMarkerElement] interface
+  /// returns an [SVGAnimatedLength] object containing the value of the `refY`
+  /// attribute of the .
   external SVGAnimatedLength get refY;
+
+  /// The **`markerUnits`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedEnumeration] object. This object returns
+  /// an integer which represents the keyword values that the `markerUnits`
+  /// attribute accepts.
   external SVGAnimatedEnumeration get markerUnits;
+
+  /// The **`markerWidth`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedLength] object containing the width of
+  /// the  viewport as defined by the `markerWidth` attribute.
   external SVGAnimatedLength get markerWidth;
+
+  /// The **`markerHeight`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedLength] object containing the height of
+  /// the  viewport as defined by the `markerHeight` attribute.
   external SVGAnimatedLength get markerHeight;
+
+  /// The **`orientType`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedEnumeration] object indicating whether
+  /// the `orient` attribute is `auto`, an angle value, or something else.
+  ///
+  /// This _something else_ is most likely to be the keyword
+  /// `auto-start-reverse` however the spec leaves it open for this to be other
+  /// values. Unsupported values will generally be thrown away by the parser,
+  /// leaving the value the default of `auto`.
   external SVGAnimatedEnumeration get orientType;
+
+  /// The **`orientAngle`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedAngle] object containing the angle of the
+  /// `orient` attribute.
   external SVGAnimatedAngle get orientAngle;
-  external set orient(String value);
   external String get orient;
+  external set orient(String value);
+
+  /// The **`viewBox`** read-only property of the [SVGMarkerElement] interface
+  /// returns an [SVGAnimatedRect] object which contains the values set by the
+  /// `viewBox` attribute on the .
   external SVGAnimatedRect get viewBox;
+
+  /// The **`preserveAspectRatio`** read-only property of the [SVGMarkerElement]
+  /// interface returns an [SVGAnimatedPreserveAspectRatio] object containing
+  /// the value of the `preserveAspectRatio` attribute of the .
   external SVGAnimatedPreserveAspectRatio get preserveAspectRatio;
 }
 
@@ -1577,10 +1758,10 @@ extension type SVGScriptElement._(JSObject _) implements SVGElement, JSObject {
           'script',
         );
 
-  external set type(String value);
   external String get type;
-  external set crossOrigin(String? value);
+  external set type(String value);
   external String? get crossOrigin;
+  external set crossOrigin(String? value);
   external SVGAnimatedString get href;
 }
 
@@ -1600,41 +1781,49 @@ extension type SVGAElement._(JSObject _)
           'a',
         );
 
+  /// The **`SVGAElement.target`** read-only property of [SVGAElement] returns
+  /// an [SVGAnimatedString] object that specifies the portion of a target
+  /// window, frame, pane into which a document is to be opened when a link is
+  /// activated.
+  ///
+  /// This property is used when there are multiple possible targets for the
+  /// ending resource, like when the parent document is a multi-frame HTML or
+  /// XHTML document.
   external SVGAnimatedString get target;
-  external set download(String value);
   external String get download;
-  external set ping(String value);
+  external set download(String value);
   external String get ping;
-  external set rel(String value);
+  external set ping(String value);
   external String get rel;
+  external set rel(String value);
   external DOMTokenList get relList;
-  external set hreflang(String value);
   external String get hreflang;
-  external set type(String value);
+  external set hreflang(String value);
   external String get type;
-  external set text(String value);
+  external set type(String value);
   external String get text;
-  external set referrerPolicy(String value);
+  external set text(String value);
   external String get referrerPolicy;
+  external set referrerPolicy(String value);
   external String get origin;
-  external set protocol(String value);
   external String get protocol;
-  external set username(String value);
+  external set protocol(String value);
   external String get username;
-  external set password(String value);
+  external set username(String value);
   external String get password;
-  external set host(String value);
+  external set password(String value);
   external String get host;
-  external set hostname(String value);
+  external set host(String value);
   external String get hostname;
-  external set port(String value);
+  external set hostname(String value);
   external String get port;
-  external set pathname(String value);
+  external set port(String value);
   external String get pathname;
-  external set search(String value);
+  external set pathname(String value);
   external String get search;
-  external set hash(String value);
+  external set search(String value);
   external String get hash;
+  external set hash(String value);
   external SVGAnimatedString get href;
 }
 
diff --git a/lib/src/dom/svg_animations.dart b/lib/src/dom/svg_animations.dart
index 378990af..d01d372e 100644
--- a/lib/src/dom/svg_animations.dart
+++ b/lib/src/dom/svg_animations.dart
@@ -54,13 +54,19 @@ extension type SVGAnimationElement._(JSObject _)
   external void beginElementAt(num offset);
   external void endElement();
   external void endElementAt(num offset);
+
+  /// The **`SVGAnimationElement.targetElement`** property refers to
+  /// the element which is being animated. If no target element is being
+  /// animated (for
+  /// example, because the `href` attribute specifies an unknown element), the
+  /// value returned is `null`.
   external SVGElement? get targetElement;
-  external set onbegin(EventHandler value);
   external EventHandler get onbegin;
-  external set onend(EventHandler value);
+  external set onbegin(EventHandler value);
   external EventHandler get onend;
-  external set onrepeat(EventHandler value);
+  external set onend(EventHandler value);
   external EventHandler get onrepeat;
+  external set onrepeat(EventHandler value);
   external SVGStringList get requiredExtensions;
   external SVGStringList get systemLanguage;
 }
diff --git a/lib/src/dom/touch_events.dart b/lib/src/dom/touch_events.dart
index 87b2f90d..1f8fde1b 100644
--- a/lib/src/dom/touch_events.dart
+++ b/lib/src/dom/touch_events.dart
@@ -37,36 +37,36 @@ extension type TouchInit._(JSObject _) implements JSObject {
     TouchType touchType,
   });
 
-  external set identifier(int value);
   external int get identifier;
-  external set target(EventTarget value);
+  external set identifier(int value);
   external EventTarget get target;
-  external set clientX(num value);
+  external set target(EventTarget value);
   external num get clientX;
-  external set clientY(num value);
+  external set clientX(num value);
   external num get clientY;
-  external set screenX(num value);
+  external set clientY(num value);
   external num get screenX;
-  external set screenY(num value);
+  external set screenX(num value);
   external num get screenY;
-  external set pageX(num value);
+  external set screenY(num value);
   external num get pageX;
-  external set pageY(num value);
+  external set pageX(num value);
   external num get pageY;
-  external set radiusX(num value);
+  external set pageY(num value);
   external num get radiusX;
-  external set radiusY(num value);
+  external set radiusX(num value);
   external num get radiusY;
-  external set rotationAngle(num value);
+  external set radiusY(num value);
   external num get rotationAngle;
-  external set force(num value);
+  external set rotationAngle(num value);
   external num get force;
-  external set altitudeAngle(num value);
+  external set force(num value);
   external num get altitudeAngle;
-  external set azimuthAngle(num value);
+  external set altitudeAngle(num value);
   external num get azimuthAngle;
-  external set touchType(TouchType value);
+  external set azimuthAngle(num value);
   external TouchType get touchType;
+  external set touchType(TouchType value);
 }
 
 /// The **`Touch`** interface represents a single contact point on a
@@ -92,17 +92,90 @@ extension type TouchInit._(JSObject _) implements JSObject {
 extension type Touch._(JSObject _) implements JSObject {
   external factory Touch(TouchInit touchInitDict);
 
+  /// The **`Touch.identifier`** returns a value uniquely identifying
+  /// this point of contact with the touch surface. This value remains
+  /// consistent for every
+  /// event involving this finger's (or stylus's) movement on the surface until
+  /// it is lifted
+  /// off the surface.
   external int get identifier;
+
+  /// The read-only **`target`** property of the `Touch` interface returns the
+  /// ([EventTarget]) on which the touch contact started when it was first
+  /// placed on the surface, even if the touch point has since moved outside the
+  /// interactive area of that element or even been removed from the document.
+  /// Note that if the target element is removed from the document, events will
+  /// still be targeted at it, and hence won't necessarily bubble up to the
+  /// window or document anymore. If there is any risk of an element being
+  /// removed while it is being touched, the best practice is to attach the
+  /// touch listeners directly to the target.
   external EventTarget get target;
+
+  /// Returns the X coordinate of the touch point relative to the screen, not
+  /// including any scroll offset.
   external num get screenX;
+
+  /// Returns the Y coordinate of the touch point relative to the screen, not
+  /// including any scroll offset.
   external num get screenY;
+
+  /// The `Touch.clientX` read-only property returns the X coordinate of the
+  /// touch
+  /// point relative to the viewport, not including any scroll offset.
   external num get clientX;
+
+  /// The **`Touch.clientY`** read-only property returns the Y
+  /// coordinate of the touch point relative to the browser's viewport, not
+  /// including any
+  /// scroll offset.
   external num get clientY;
+
+  /// The **`Touch.pageX`** read-only property returns the X
+  /// coordinate of the touch point relative to the viewport, including any
+  /// scroll offset.
   external num get pageX;
+
+  /// The **`Touch.pageY`** read-only property returns the Y
+  /// coordinate of the touch point relative to the viewport, including any
+  /// scroll offset.
   external num get pageY;
+
+  /// The **`radiusX`** read-only property of the [Touch] interface returns the
+  /// X radius of the ellipse that most closely circumscribes the area of
+  /// contact with the touch surface. The value is in CSS pixels of the same
+  /// scale as [Touch.screenX].
+  ///
+  /// This value, in combination with [Touch.radiusY] and [Touch.rotationAngle]
+  /// constructs an ellipse that approximates the size and shape of the area of
+  /// contact between the user and the screen. This may be a relatively large
+  /// ellipse representing the contact between a fingertip and the screen or a
+  /// small area representing the tip of a stylus, for example.
   external num get radiusX;
+
+  /// The **`radiusY`** read-only property of the [Touch] interface returns the
+  /// Y radius of the ellipse that most closely circumscribes the area of
+  /// contact with the touch surface. The value is in CSS pixels of the same
+  /// scale as [Touch.screenX].
+  ///
+  /// This value, in combination with [Touch.radiusX] and [Touch.rotationAngle]
+  /// constructs an ellipse that approximates the size and shape of the area of
+  /// contact between the user and the screen. This may be a large ellipse
+  /// representing the contact between a fingertip and the screen or a small one
+  /// representing the tip of a stylus, for example.
   external num get radiusY;
+
+  /// The **`rotationAngle`** read-only property of the [Touch] interface
+  /// returns the rotation angle, in degrees, of the contact area ellipse
+  /// defined by [Touch.radiusX] and [Touch.radiusY]. The value may be between 0
+  /// and 90. Together, these three values describe an ellipse that approximates
+  /// the size and shape of the area of contact between the user and the screen.
+  /// This may be a relatively large ellipse representing the contact between a
+  /// fingertip and the screen or a small area representing the tip of a stylus,
+  /// for example.
   external num get rotationAngle;
+
+  /// The **`Touch.force`** read-only property returns the amount of
+  /// pressure the user is applying to the touch surface for a [Touch] point.
   external num get force;
   external num get altitudeAngle;
   external num get azimuthAngle;
@@ -130,6 +203,9 @@ extension type TouchList._(JSObject _) implements JSObject {
   /// The **`item()`** method returns the [Touch]
   /// object at the specified index in the [TouchList].
   external Touch? item(int index);
+
+  /// The **`length`** read-only property indicates the number of
+  /// items (touch points) in a given [TouchList].
   external int get length;
 }
 extension type TouchEventInit._(JSObject _)
@@ -160,12 +236,12 @@ extension type TouchEventInit._(JSObject _)
     JSArray<Touch> changedTouches,
   });
 
-  external set touches(JSArray<Touch> value);
   external JSArray<Touch> get touches;
-  external set targetTouches(JSArray<Touch> value);
+  external set touches(JSArray<Touch> value);
   external JSArray<Touch> get targetTouches;
-  external set changedTouches(JSArray<Touch> value);
+  external set targetTouches(JSArray<Touch> value);
   external JSArray<Touch> get changedTouches;
+  external set changedTouches(JSArray<Touch> value);
 }
 
 /// The **`TouchEvent`** interface represents an [UIEvent] which is sent when
@@ -189,11 +265,72 @@ extension type TouchEvent._(JSObject _) implements UIEvent, JSObject {
   ]);
 
   external bool getModifierState(String keyArg);
+
+  /// **`touches`** is a read-only [TouchList] listing
+  /// all the [Touch] objects for touch points that are currently in contact
+  /// with the touch surface, regardless of whether or not they've changed or
+  /// what their
+  /// target element was at [Element.touchstart_event] time.
+  ///
+  /// You can think of it as how many separate fingers are able to be identified
+  /// as touching
+  /// the screen.
+  ///
+  /// > **Note:** Touches inside the array are not necessarily ordered by order
+  /// > of occurrences (the
+  /// > i-th element in the array being the i-th touch that happened). You
+  /// > cannot assume a specific order. To determine the order of occurrences of
+  /// > the touches, use the `touch` object IDs.
   external TouchList get touches;
+
+  /// The **`targetTouches`** read-only property is a [TouchList] listing all
+  /// the [Touch] objects for touch points that are still in contact with the
+  /// touch surface **and** whose [Element.touchstart_event] event occurred
+  /// inside the same target [element] as the current target element.
   external TouchList get targetTouches;
+
+  /// The **`changedTouches`** read-only property is a [TouchList] whose touch
+  /// points ([Touch] objects) varies depending on the event type, as follows:
+  ///
+  /// - For the [Element.touchstart_event] event, it is a list of the touch
+  ///   points that became active with the current event.
+  /// - For the [Element.touchmove_event] event, it is a list of the touch
+  ///   points that have changed since the last event.
+  /// - For the [Element.touchend_event] event, it is a list of the touch points
+  ///   that have been removed from the surface (that is, the set of touch
+  ///   points corresponding to fingers no longer touching the surface).
   external TouchList get changedTouches;
+
+  /// The read-only **`altKey`** property of the [TouchEvent] interface returns
+  /// a boolean value indicating whether or not the <kbd>alt</kbd> (Alternate)
+  /// key is enabled when the touch event is created. If the <kbd>alt</kbd> key
+  /// is enabled, the attribute's value is `true`. Otherwise, it is `false`.
+  ///
+  /// This property is .
   external bool get altKey;
+
+  /// The read-only **`metaKey`** property of the [TouchEvent] interface returns
+  /// a boolean value indicating whether or not the <kbd>Meta</kbd> key is
+  /// enabled when the touch event is created. If this key is enabled, the
+  /// attribute's value is `true`. Otherwise, it is `false`.
+  ///
+  /// This property is .
+  ///
+  /// > **Note:** On Macintosh keyboards, this is the <kbd>⌘ Command</kbd> key.
+  /// > On Windows keyboards, this is the Windows key (<kbd>⊞</kbd>).
   external bool get metaKey;
+
+  /// The read-only **`ctrlKey`** property of the [TouchEvent] interface returns
+  /// a boolean value indicating whether the <kbd>control</kbd> (Control) key is
+  /// enabled when the touch event is created. If this key is enabled, the
+  /// attribute's value is `true`. Otherwise, it is `false`.
+  ///
+  /// This property is .
   external bool get ctrlKey;
+
+  /// The read-only **`shiftKey`** property of the `TouchEvent` interface
+  /// returns a boolean value indicating whether or not the <kbd>shift</kbd> key
+  /// is enabled when the touch event is created. If this key is enabled, the
+  /// attribute's value is `true`. Otherwise, it is `false`.
   external bool get shiftKey;
 }
diff --git a/lib/src/dom/trusted_types.dart b/lib/src/dom/trusted_types.dart
index 6360c1fb..6b460ac0 100644
--- a/lib/src/dom/trusted_types.dart
+++ b/lib/src/dom/trusted_types.dart
@@ -160,8 +160,30 @@ extension type TrustedTypePolicyFactory._(JSObject _) implements JSObject {
     String property, [
     String elementNs,
   ]);
+
+  /// The **`emptyHTML`** read-only property of the [TrustedTypePolicyFactory]
+  /// interface returns a [TrustedHTML] object containing an empty string.
+  ///
+  /// This object can be used when the application requires an empty string to
+  /// be inserted into an injection sink.
   external TrustedHTML get emptyHTML;
+
+  /// The **`emptyScript`** read-only property of the [TrustedTypePolicyFactory]
+  /// interface returns a [TrustedScript] object containing an empty string.
+  ///
+  /// This object can be used when the application requires an empty string to
+  /// be inserted into an injection sink which is expecting a `TrustedScript`
+  /// object.
   external TrustedScript get emptyScript;
+
+  /// The **`defaultPolicy`** read-only property of the
+  /// [TrustedTypePolicyFactory] interface returns the default
+  /// [TrustedTypePolicy] or null if this is empty.
+  ///
+  /// > **Note:** Information about the creation and use of default policies can
+  /// > be found in the
+  /// > [`createPolicy()`](/en-US/docs/Web/API/TrustedTypePolicyFactory/createPolicy#default_policy)
+  /// > documentation.
   external TrustedTypePolicy? get defaultPolicy;
 }
 
@@ -200,6 +222,9 @@ extension type TrustedTypePolicy._(JSObject _) implements JSObject {
     String input,
     JSAny? arguments,
   );
+
+  /// The **`name`** read-only property of the [TrustedTypePolicy] interface
+  /// returns the name of the policy.
   external String get name;
 }
 extension type TrustedTypePolicyOptions._(JSObject _) implements JSObject {
@@ -209,10 +234,10 @@ extension type TrustedTypePolicyOptions._(JSObject _) implements JSObject {
     CreateScriptURLCallback createScriptURL,
   });
 
-  external set createHTML(CreateHTMLCallback value);
   external CreateHTMLCallback get createHTML;
-  external set createScript(CreateScriptCallback value);
+  external set createHTML(CreateHTMLCallback value);
   external CreateScriptCallback get createScript;
-  external set createScriptURL(CreateScriptURLCallback value);
+  external set createScript(CreateScriptCallback value);
   external CreateScriptURLCallback get createScriptURL;
+  external set createScriptURL(CreateScriptURLCallback value);
 }
diff --git a/lib/src/dom/uievents.dart b/lib/src/dom/uievents.dart
index 906de255..33bebbdb 100644
--- a/lib/src/dom/uievents.dart
+++ b/lib/src/dom/uievents.dart
@@ -57,8 +57,28 @@ extension type UIEvent._(JSObject _) implements Event, JSObject {
     Window? viewArg,
     int detailArg,
   ]);
+
+  /// The **`UIEvent.view`** read-only property returns the
+  /// object from which the event was generated. In browsers, this
+  /// is the [Window] object the event happened in.
   external Window? get view;
+
+  /// The **`UIEvent.detail`** read-only property, when non-zero, provides the
+  /// current (or next, depending on the event) click count.
+  ///
+  /// For [Element.click_event] or [Element.dblclick_event] events,
+  /// `UIEvent.detail` is the current click count.
+  ///
+  /// For [Element.mousedown_event] or [Element.mouseup_event] events,
+  /// `UIEvent.detail` is _1 plus_ the current click count.
+  ///
+  /// For all other [UIEvent] objects, `UIEvent.detail` is always zero.
   external int get detail;
+
+  /// The **`UIEvent.which`** read-only property of the [UIEvent] interface
+  /// returns a number that indicates which button was pressed on the mouse, or
+  /// the numeric `keyCode` or the character code (`charCode`) of the key
+  /// pressed on the keyboard.
   external int get which;
 }
 extension type UIEventInit._(JSObject _) implements EventInit, JSObject {
@@ -71,12 +91,12 @@ extension type UIEventInit._(JSObject _) implements EventInit, JSObject {
     int which,
   });
 
-  external set view(Window? value);
   external Window? get view;
-  external set detail(int value);
+  external set view(Window? value);
   external int get detail;
-  external set which(int value);
+  external set detail(int value);
   external int get which;
+  external set which(int value);
 }
 
 /// The **`FocusEvent`** interface represents focus-related events, including
@@ -93,6 +113,50 @@ extension type FocusEvent._(JSObject _) implements UIEvent, JSObject {
     FocusEventInit eventInitDict,
   ]);
 
+  /// The **`FocusEvent.relatedTarget`** read-only property is the
+  /// secondary target, depending on the type of event:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th scope="col">Event name</th>
+  ///       <th scope="col"><code>target</code></th>
+  ///       <th scope="col"><code>relatedTarget</code></th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td>[Element.blur_event]</td>
+  ///       <td>The [EventTarget] losing focus</td>
+  ///       <td>
+  /// The [EventTarget] receiving focus (if any).
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.focus_event]</td>
+  ///       <td>The [EventTarget] receiving focus</td>
+  ///       <td>The [EventTarget] losing focus (if any)</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.focusin_event]</td>
+  ///       <td>The [EventTarget] receiving focus</td>
+  ///       <td>The [EventTarget] losing focus (if any)</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.focusout_event]</td>
+  ///       <td>The [EventTarget] losing focus</td>
+  ///       <td>The [EventTarget] receiving focus (if any)</td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
+  ///
+  /// Note that [many elements can't have
+  /// focus](https://stackoverflow.com/questions/42764494/blur-event-relatedtarget-returns-null/42764495),
+  /// which is a common reason for `relatedTarget` to be
+  /// `null`. `relatedTarget` may also be set to `null` for
+  /// security reasons, like when tabbing in or out of a page.
+  ///
+  /// [MouseEvent.relatedTarget] is a similar property for mouse events.
   external EventTarget? get relatedTarget;
 }
 extension type FocusEventInit._(JSObject _) implements UIEventInit, JSObject {
@@ -106,8 +170,8 @@ extension type FocusEventInit._(JSObject _) implements UIEventInit, JSObject {
     EventTarget? relatedTarget,
   });
 
-  external set relatedTarget(EventTarget? value);
   external EventTarget? get relatedTarget;
+  external set relatedTarget(EventTarget? value);
 }
 
 /// The **`MouseEvent`** interface represents events that occur due to the user
@@ -173,24 +237,264 @@ extension type MouseEvent._(JSObject _) implements UIEvent, JSObject {
     int buttonArg,
     EventTarget? relatedTargetArg,
   ]);
+
+  /// The **`pageX`** read-only property of the [MouseEvent] interface returns
+  /// the X (horizontal) coordinate (in pixels) at which the mouse was clicked,
+  /// relative to the left edge of the entire document.
+  /// This includes any portion of the document not currently visible.
+  ///
+  /// Being based on the edge of the document as it is, this property takes into
+  /// account any horizontal scrolling of the page.
+  /// For example, if the page is scrolled such that 200 pixels of the left side
+  /// of the document are scrolled out of view, and the mouse is clicked 100
+  /// pixels inward from the left edge of the view, the value returned by
+  /// `pageX` will be 300.
+  ///
+  /// Originally, this property was defined as a `long` integer. The
+  /// [CSSOM View Module](https://developer.mozilla.org/en-US/docs/Web/CSS/CSSOM_view)
+  /// redefined it as a
+  /// `double` float. See the [Browser compatibility](#browser_compatibility)
+  /// section for
+  /// details.
+  ///
+  /// See
+  /// [Coordinate systems](https://developer.mozilla.org/en-US/docs/Web/CSS/CSSOM_view/Coordinate_systems#page)
+  /// for additional information about coordinates specified in this fashion.
   external num get pageX;
+
+  /// The **`pageY`** read-only property of the [MouseEvent] interface returns
+  /// the Y (vertical) coordinate in pixels of the event relative to the whole
+  /// document.
+  /// This property takes into account any vertical scrolling of the page.
   external num get pageY;
+
+  /// The **`MouseEvent.x`** property is an alias for the [MouseEvent.clientX]
+  /// property.
   external num get x;
+
+  /// The **`MouseEvent.y`** property is an alias for the [MouseEvent.clientY]
+  /// property.
   external num get y;
+
+  /// The **`offsetX`** read-only property of the [MouseEvent] interface
+  /// provides the offset in the X coordinate of the mouse pointer between that
+  /// event and the padding edge of the target node.
   external num get offsetX;
+
+  /// The **`offsetY`** read-only property of the [MouseEvent] interface
+  /// provides the offset in the Y coordinate of the mouse pointer between that
+  /// event and the padding edge of the target node.
   external num get offsetY;
+
+  /// The **`screenX`** read-only property of the [MouseEvent] interface
+  /// provides the horizontal coordinate (offset) of the mouse pointer in
+  /// [screen coordinates](https://developer.mozilla.org/en-US/docs/Web/CSS/CSSOM_view/Coordinate_systems#screen).
+  ///
+  /// > **Note:** In a multiscreen environment, screens aligned horizontally
+  /// > will be treated as a single device, and so the range of the `screenX`
+  /// > value will increase to the combined width of the screens.
   external int get screenX;
+
+  /// The **`screenY`** read-only property of the [MouseEvent] interface
+  /// provides the vertical coordinate (offset) of the mouse pointer in
+  /// [screen coordinates](https://developer.mozilla.org/en-US/docs/Web/CSS/CSSOM_view/Coordinate_systems#screen).
   external int get screenY;
+
+  /// The **`clientX`** read-only property of the [MouseEvent] interface
+  /// provides the horizontal coordinate within the application's  at which the
+  /// event occurred (as opposed to the coordinate within the page).
+  ///
+  /// For example, clicking on the left edge of the viewport will always result
+  /// in a mouse event with a `clientX` value of `0`, regardless of whether the
+  /// page is scrolled horizontally.
   external int get clientX;
+
+  /// The **`clientY`** read-only property of the [MouseEvent] interface
+  /// provides the vertical coordinate within the application's  at which the
+  /// event occurred (as opposed to the coordinate within the page).
+  ///
+  /// For example, clicking on the top edge of the viewport will always result
+  /// in a mouse event with a `clientY` value of `0`, regardless of whether the
+  /// page is scrolled vertically.
   external int get clientY;
+
+  /// The **`MouseEvent.layerX`** read-only property returns the
+  /// horizontal coordinate of the event relative to the current layer.
+  ///
+  /// This property takes scrolling of the page into account and returns a value
+  /// relative to
+  /// the whole of the document unless the event occurs inside a positioned
+  /// element, where the
+  /// returned value is relative to the top left of the positioned element.
   external int get layerX;
+
+  /// The **`MouseEvent.layerY`** read-only property returns the
+  /// vertical coordinate of the event relative to the current layer.
+  ///
+  /// This property takes scrolling of the page into account, and returns a
+  /// value relative to
+  /// the whole of the document, unless the event occurs inside a positioned
+  /// element, where
+  /// the returned value is relative to the top left of the positioned element.
   external int get layerY;
+
+  /// The **`MouseEvent.ctrlKey`** read-only property is a boolean value that
+  /// indicates whether the <kbd>ctrl</kbd> key was pressed or not when a given
+  /// mouse event occurs.
+  ///
+  /// On Macintosh keyboards, this key is labeled the <kbd>control</kbd> key.
+  /// Also, note that on a Mac, a click combined with the <kbd>control</kbd> key
+  /// is intercepted by the operating system and used to open a context menu, so
+  /// `ctrlKey` is not detectable on click events.
   external bool get ctrlKey;
+
+  /// The **`MouseEvent.shiftKey`** read-only property is a boolean value that
+  /// indicates whether the <kbd>shift</kbd> key was pressed or not when a given
+  /// mouse event occurs.
   external bool get shiftKey;
+
+  /// The **`MouseEvent.altKey`** read-only property is a boolean value that
+  /// indicates whether the <kbd>alt</kbd> key was pressed or not when a given
+  /// mouse event occurs.
+  ///
+  /// Be aware that the browser can't always detect the <kbd>alt</kbd> key on
+  /// some operating systems.
+  /// On some Linux variants, for example, a left mouse click combined with the
+  /// <kbd>alt</kbd> key is used to move or resize windows.
+  ///
+  /// > **Note:** On Macintosh keyboards, this key is also known as the
+  /// > <kbd>option</kbd> key.
   external bool get altKey;
+
+  /// The **`MouseEvent.metaKey`** read-only property is a boolean value that
+  /// indicates whether the <kbd>meta</kbd> key was pressed or not when a given
+  /// mouse event occurs.
+  ///
+  /// Be aware that many operating systems bind special functionality to the
+  /// <kbd>meta</kbd> key, so this property may be `false` even when the key is
+  /// actually pressed.
+  /// On Windows, for example, this key may open the Start menu.
+  ///
+  /// > **Note:** On Macintosh keyboards, this key is the <kbd>command</kbd> key
+  /// > (<kbd>⌘</kbd>).
+  /// > On Windows keyboards, this key is the Windows key (<kbd>⊞</kbd>).
   external bool get metaKey;
+
+  /// The **`MouseEvent.button`** read-only property indicates which button was
+  /// pressed on the mouse to trigger the event.
+  ///
+  /// This property only guarantees to indicate which buttons are pressed during
+  /// events caused by pressing or releasing one or multiple buttons.
+  /// As such, it is not reliable for events such as [Element.mouseenter_event],
+  /// [Element.mouseleave_event], [Element.mouseover_event],
+  /// [Element.mouseout_event], or [Element.mousemove_event].
+  ///
+  /// Users may change the configuration of buttons on their pointing device so
+  /// that if an event's button property is zero, it may not have been caused by
+  /// the button that is physically left–most on the pointing device; however,
+  /// it should behave as if the left button was clicked in the standard button
+  /// layout.
+  ///
+  /// > **Note:** Do not confuse this property with the [MouseEvent.buttons]
+  /// > property, which indicates which buttons are pressed for all mouse events
+  /// > types.
   external int get button;
+
+  /// The **`MouseEvent.buttons`** read-only property indicates which buttons
+  /// are pressed on the mouse (or other input device) when a mouse event is
+  /// triggered.
+  ///
+  /// Each button that can be pressed is represented by a given number (see
+  /// below).
+  /// If more than one button is pressed, the button values are added together
+  /// to produce a new number.
+  /// For example, if the secondary (`2`) and auxiliary (`4`) buttons are
+  /// pressed simultaneously, the value is `6` (i.e., `2 + 4`).
+  ///
+  /// > **Note:** Do not confuse this property with the [MouseEvent.button]
+  /// > property.
+  /// > The [MouseEvent.buttons] property indicates the state of buttons pressed
+  /// > during any kind of mouse event,
+  /// > while the [MouseEvent.button] property only guarantees the correct value
+  /// > for mouse events caused by pressing or releasing one or multiple
+  /// > buttons.
   external int get buttons;
+
+  /// The **`MouseEvent.relatedTarget`** read-only property is the secondary
+  /// target for the mouse event, if there is one.
+  ///
+  /// That is:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th>Event name</th>
+  ///       <th><code>target</code></th>
+  ///       <th><code>relatedTarget</code></th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td>[Element.mouseenter_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.mouseleave_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.mouseout_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[Element.mouseover_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[HTMLElement.dragenter_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[HTMLElement.dragleave_event]</td>
+  ///       <td>
+  /// The [EventTarget] the pointing device exited from
+  ///       </td>
+  ///       <td>
+  /// The [EventTarget] the pointing device entered to
+  ///       </td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
+  ///
+  /// For events with no secondary target, `relatedTarget` returns
+  /// `null`.
+  ///
+  /// [FocusEvent.relatedTarget] is a similar property for focus events.
   external EventTarget? get relatedTarget;
 }
 extension type MouseEventInit._(JSObject _)
@@ -225,20 +529,20 @@ extension type MouseEventInit._(JSObject _)
     EventTarget? relatedTarget,
   });
 
-  external set screenX(int value);
   external int get screenX;
-  external set screenY(int value);
+  external set screenX(int value);
   external int get screenY;
-  external set clientX(int value);
+  external set screenY(int value);
   external int get clientX;
-  external set clientY(int value);
+  external set clientX(int value);
   external int get clientY;
-  external set button(int value);
+  external set clientY(int value);
   external int get button;
-  external set buttons(int value);
+  external set button(int value);
   external int get buttons;
-  external set relatedTarget(EventTarget? value);
+  external set buttons(int value);
   external EventTarget? get relatedTarget;
+  external set relatedTarget(EventTarget? value);
 }
 extension type EventModifierInit._(JSObject _)
     implements UIEventInit, JSObject {
@@ -265,34 +569,34 @@ extension type EventModifierInit._(JSObject _)
     bool modifierSymbolLock,
   });
 
-  external set ctrlKey(bool value);
   external bool get ctrlKey;
-  external set shiftKey(bool value);
+  external set ctrlKey(bool value);
   external bool get shiftKey;
-  external set altKey(bool value);
+  external set shiftKey(bool value);
   external bool get altKey;
-  external set metaKey(bool value);
+  external set altKey(bool value);
   external bool get metaKey;
-  external set modifierAltGraph(bool value);
+  external set metaKey(bool value);
   external bool get modifierAltGraph;
-  external set modifierCapsLock(bool value);
+  external set modifierAltGraph(bool value);
   external bool get modifierCapsLock;
-  external set modifierFn(bool value);
+  external set modifierCapsLock(bool value);
   external bool get modifierFn;
-  external set modifierFnLock(bool value);
+  external set modifierFn(bool value);
   external bool get modifierFnLock;
-  external set modifierHyper(bool value);
+  external set modifierFnLock(bool value);
   external bool get modifierHyper;
-  external set modifierNumLock(bool value);
+  external set modifierHyper(bool value);
   external bool get modifierNumLock;
-  external set modifierScrollLock(bool value);
+  external set modifierNumLock(bool value);
   external bool get modifierScrollLock;
-  external set modifierSuper(bool value);
+  external set modifierScrollLock(bool value);
   external bool get modifierSuper;
-  external set modifierSymbol(bool value);
+  external set modifierSuper(bool value);
   external bool get modifierSymbol;
-  external set modifierSymbolLock(bool value);
+  external set modifierSymbol(bool value);
   external bool get modifierSymbolLock;
+  external set modifierSymbolLock(bool value);
 }
 
 /// The **`WheelEvent`** interface represents events that occur due to the user
@@ -326,9 +630,31 @@ extension type WheelEvent._(JSObject _) implements MouseEvent, JSObject {
   external static int get DOM_DELTA_PIXEL;
   external static int get DOM_DELTA_LINE;
   external static int get DOM_DELTA_PAGE;
+
+  /// The **`WheelEvent.deltaX`** read-only property is a
+  /// `double` representing the horizontal scroll amount in the
+  /// [WheelEvent.deltaMode] unit.
   external num get deltaX;
+
+  /// The **`WheelEvent.deltaY`** read-only property is a
+  /// `double` representing the vertical scroll amount in the
+  /// [WheelEvent.deltaMode] unit.
   external num get deltaY;
+
+  /// The **`WheelEvent.deltaZ`** read-only property is a
+  /// `double` representing the scroll amount along the z-axis, in the
+  /// [WheelEvent.deltaMode] unit.
   external num get deltaZ;
+
+  /// The **`WheelEvent.deltaMode`** read-only property returns an
+  /// `unsigned long` representing the unit of the delta values scroll amount.
+  /// Permitted values are:
+  ///
+  /// | Constant          | Value  | Description                               |
+  /// | ----------------- | ------ | ----------------------------------------- |
+  /// | `DOM_DELTA_PIXEL` | `0x00` | The delta values are specified in pixels. |
+  /// | `DOM_DELTA_LINE`  | `0x01` | The delta values are specified in lines.  |
+  /// | `DOM_DELTA_PAGE`  | `0x02` | The delta values are specified in pages.  |
   external int get deltaMode;
 }
 extension type WheelEventInit._(JSObject _)
@@ -367,14 +693,14 @@ extension type WheelEventInit._(JSObject _)
     int deltaMode,
   });
 
-  external set deltaX(num value);
   external num get deltaX;
-  external set deltaY(num value);
+  external set deltaX(num value);
   external num get deltaY;
-  external set deltaZ(num value);
+  external set deltaY(num value);
   external num get deltaZ;
-  external set deltaMode(int value);
+  external set deltaZ(num value);
   external int get deltaMode;
+  external set deltaMode(int value);
 }
 
 /// The **`InputEvent`** interface represents an event notifying the user of
@@ -390,8 +716,24 @@ extension type InputEvent._(JSObject _) implements UIEvent, JSObject {
     InputEventInit eventInitDict,
   ]);
 
+  /// The **`data`** read-only property of the
+  /// [InputEvent] interface returns a string with inserted
+  /// characters. This may be an empty string if the change doesn't insert text,
+  /// such as when
+  /// characters are deleted.
   external String? get data;
+
+  /// The **`InputEvent.isComposing`** read-only property returns a
+  /// boolean value indicating if the event is fired after
+  /// [Element.compositionstart_event] and before
+  /// [Element.compositionend_event].
   external bool get isComposing;
+
+  /// The **`inputType`** read-only property of the
+  /// [InputEvent] interface returns the type of change made to editable
+  /// content.
+  /// Possible changes include for example inserting, deleting, and formatting
+  /// text.
   external String get inputType;
 }
 extension type InputEventInit._(JSObject _) implements UIEventInit, JSObject {
@@ -407,12 +749,12 @@ extension type InputEventInit._(JSObject _) implements UIEventInit, JSObject {
     String inputType,
   });
 
-  external set data(String? value);
   external String? get data;
-  external set isComposing(bool value);
+  external set data(String? value);
   external bool get isComposing;
-  external set inputType(String value);
+  external set isComposing(bool value);
   external String get inputType;
+  external set inputType(String value);
 }
 
 /// **`KeyboardEvent`** objects describe a user interaction with the keyboard;
@@ -469,16 +811,219 @@ extension type KeyboardEvent._(JSObject _) implements UIEvent, JSObject {
     bool shiftKey,
     bool metaKey,
   ]);
+
+  /// The [KeyboardEvent] interface's **`key`** read-only property returns the
+  /// value of the key pressed by the user, taking into consideration the state
+  /// of modifier keys such as <kbd>Shift</kbd> as well as the keyboard locale
+  /// and layout.
   external String get key;
+
+  /// The `KeyboardEvent.code` property represents a physical key on the
+  /// keyboard (as opposed to the character generated by pressing the key). In
+  /// other words, this property returns a value that isn't altered by keyboard
+  /// layout or the state of the modifier keys.
+  ///
+  /// If the input device isn't a physical keyboard, but is instead a virtual
+  /// keyboard or accessibility device, the returned value will be set by the
+  /// browser to match as closely as possible to what would happen with a
+  /// physical keyboard, to maximize compatibility between physical and virtual
+  /// input devices.
+  ///
+  /// This property is useful when you want to handle keys based on their
+  /// physical positions on the input device rather than the characters
+  /// associated with those keys; this is especially common when writing code to
+  /// handle input for games that simulate a gamepad-like environment using keys
+  /// on the keyboard. Be aware, however, that you can't use the value reported
+  /// by `KeyboardEvent.code` to determine the character generated by the
+  /// keystroke, because the keycode's name may not match the actual character
+  /// that's printed on the key or that's generated by the computer when the key
+  /// is pressed.
+  ///
+  /// For example, the `code` returned is "`KeyQ`" for the <kbd>Q</kbd> key on a
+  /// QWERTY layout keyboard, but the same `code` value also represents the
+  /// <kbd>'</kbd> key on Dvorak keyboards and the <kbd>A</kbd> key on AZERTY
+  /// keyboards. That makes it impossible to use the value of `code` to
+  /// determine what the name of the key is to users if they're not using an
+  /// anticipated keyboard layout.
+  ///
+  /// To determine what character corresponds with the key event, use the
+  /// [KeyboardEvent.key] property instead.
   external String get code;
+
+  /// The **`KeyboardEvent.location`** read-only property returns an
+  /// `unsigned long` representing the location of the key on the keyboard or
+  /// other
+  /// input device.
+  ///
+  /// Possible values are:
+  ///
+  /// <table class="standard-table">
+  ///   <thead>
+  ///     <tr>
+  ///       <th>Constant</th>
+  ///       <th>Value</th>
+  ///       <th>Description</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td><code>DOM_KEY_LOCATION_STANDARD</code></td>
+  ///       <td>0</td>
+  ///       <td>
+  /// The key has only one version, or can't be distinguished between the left
+  /// and right versions of the key, and was not pressed on the numeric keypad
+  /// or a key that is considered to be part of the keypad.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>DOM_KEY_LOCATION_LEFT</code></td>
+  ///       <td>1</td>
+  ///       <td>
+  /// The key was the left-hand version of the key; for example, the left-hand
+  ///         <kbd>Control</kbd> key was pressed on a standard 101 key US keyboard.
+  /// This value is only used for keys that have more than one possible
+  /// location on the keyboard.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>DOM_KEY_LOCATION_RIGHT</code></td>
+  ///       <td>2</td>
+  ///       <td>
+  /// The key was the right-hand version of the key; for example, the
+  /// right-hand <kbd>Control</kbd> key is pressed on a standard 101 key US
+  /// keyboard. This value is only used for keys that have more than one
+  /// possible location on the keyboard.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td><code>DOM_KEY_LOCATION_NUMPAD</code></td>
+  ///       <td>3</td>
+  ///       <td>
+  ///         <p>
+  /// The key was on the numeric keypad, or has a virtual key code that
+  /// corresponds to the numeric keypad.
+  ///         </p>
+  ///         <div class="note">
+  ///           <p>
+  ///             <strong>Note:</strong> When <kbd>NumLock</kbd> is locked, Firefox
+  /// always returns <code>DOM_KEY_LOCATION_NUMPAD</code> for the keys on
+  /// the numeric pad. Otherwise, when <kbd>NumLock</kbd> is unlocked and
+  /// the keyboard actually has a numeric keypad, Firefox always returns
+  ///             <code>DOM_KEY_LOCATION_NUMPAD</code> too. On the other hand, if the
+  /// keyboard doesn't have a keypad, such as on a notebook computer, some
+  /// keys become Numpad only when NumLock is locked. When such keys fires
+  /// key events, the location attribute value depends on the key. That
+  /// is, it must not be <code>DOM_KEY_LOCATION_NUMPAD</code>.
+  ///           </p>
+  ///         </div>
+  ///         <div class="note">
+  ///           <p>
+  ///             <strong>Note:</strong> <kbd>NumLock</kbd> key's key events indicate
+  ///             <code>DOM_KEY_LOCATION_STANDARD</code> both on Firefox and Internet
+  /// Explorer.
+  ///           </p>
+  ///         </div>
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>DOM_KEY_LOCATION_MOBILE</code>
+  ///       </td>
+  ///       <td>4</td>
+  ///       <td>
+  ///         <p>
+  /// The key was on a mobile device; this can be on either a physical
+  /// keypad or a virtual keyboard.
+  ///         </p>
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>
+  ///         <code>DOM_KEY_LOCATION_JOYSTICK</code>
+  ///       </td>
+  ///       <td>5</td>
+  ///       <td>
+  ///         <p>
+  /// The key was a button on a game controller or a joystick on a mobile
+  /// device.
+  ///         </p>
+  ///       </td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external int get location;
+
+  /// The **`KeyboardEvent.ctrlKey`** read-only property returns a
+  /// boolean value that indicates if the <kbd>control</kbd> key was pressed
+  /// (`true`) or not (`false`) when the event occurred.
   external bool get ctrlKey;
+
+  /// The **`KeyboardEvent.shiftKey`** read-only property is a
+  /// boolean value that indicates if the <kbd>shift</kbd> key was pressed
+  /// (`true`) or not (`false`) when the event occurred.
   external bool get shiftKey;
+
+  /// The **`KeyboardEvent.altKey`** read-only property is a
+  /// boolean value that indicates if the <kbd>alt</kbd> key (<kbd>Option</kbd>
+  /// or <kbd>⌥</kbd> on macOS) was pressed (`true`) or not (`false`) when
+  /// the event occurred.
   external bool get altKey;
+
+  /// The **`KeyboardEvent.metaKey`** read-only property returning a
+  /// boolean value that indicates if the <kbd>Meta</kbd> key was pressed
+  /// (`true`) or not (`false`) when the event occurred. Some operating
+  /// systems may intercept the key so it is never detected.
+  ///
+  /// > **Note:** On Macintosh keyboards, this is the <kbd>⌘ Command</kbd> key.
+  ///
+  /// > **Note:** Before Firefox 118, the <kbd>⊞ Windows</kbd> key was handled
+  /// > as an "OS" key rather than the "Meta" key. `KeyboardEvent.metaKey` was
+  /// > `false` when the <kbd>⊞ Windows</kbd> key was pressed.
   external bool get metaKey;
+
+  /// The **`repeat`** read-only property of the
+  /// [KeyboardEvent] interface returns a boolean value that is
+  /// `true` if the given key is being held down such that it is automatically
+  /// repeating.
   external bool get repeat;
+
+  /// The **`KeyboardEvent.isComposing`** read-only property returns
+  /// a boolean value indicating if the event is fired within a composition
+  /// session, i.e. after [Element.compositionstart_event]
+  /// and before [Element.compositionend_event].
   external bool get isComposing;
+
+  /// The **`charCode`** read-only property of the
+  /// [KeyboardEvent] interface returns the Unicode value of a character key
+  /// pressed during a [Element.keypress_event] event.
+  ///
+  /// > **Warning:** Do not use this property, as it is deprecated. Instead, get
+  /// > the
+  /// > Unicode value of the character using the [KeyboardEvent.key]
+  /// > property.
   external int get charCode;
+
+  /// The deprecated **`KeyboardEvent.keyCode`** read-only property represents a
+  /// system and implementation dependent numerical code identifying the
+  /// unmodified value of the pressed key.
+  ///
+  /// This is usually the decimal ASCII (`20`) or Windows 1252 code
+  /// corresponding to the key. If the key can't be identified, this value is
+  /// `0`.
+  ///
+  /// You should avoid using this if possible; it's been deprecated for some
+  /// time. Instead, you should use [KeyboardEvent.code], if it's implemented.
+  /// Unfortunately, some browsers still don't have it, so you'll have to be
+  /// careful to make sure you use one which is supported on all target
+  /// browsers.
+  ///
+  /// > **Note:** Web developers shouldn't use the `keyCode` attribute for
+  /// > printable characters when handling `keydown` and `keyup` events. As
+  /// > described above, the `keyCode` attribute is not useful for printable
+  /// > characters, especially those input with the <kbd>Shift</kbd> or
+  /// > <kbd>Alt</kbd> key pressed. When implementing a shortcut key handler,
+  /// > the [Element.keypress_event] event is usually better (at least when
+  /// > Gecko is the runtime in use).
   external int get keyCode;
 }
 extension type KeyboardEventInit._(JSObject _)
@@ -513,20 +1058,20 @@ extension type KeyboardEventInit._(JSObject _)
     int keyCode,
   });
 
-  external set key(String value);
   external String get key;
-  external set code(String value);
+  external set key(String value);
   external String get code;
-  external set location(int value);
+  external set code(String value);
   external int get location;
-  external set repeat(bool value);
+  external set location(int value);
   external bool get repeat;
-  external set isComposing(bool value);
+  external set repeat(bool value);
   external bool get isComposing;
-  external set charCode(int value);
+  external set isComposing(bool value);
   external int get charCode;
-  external set keyCode(int value);
+  external set charCode(int value);
   external int get keyCode;
+  external set keyCode(int value);
 }
 
 /// The DOM **`CompositionEvent`** represents events that occur due to the user
@@ -555,6 +1100,12 @@ extension type CompositionEvent._(JSObject _) implements UIEvent, JSObject {
     Window? viewArg,
     String dataArg,
   ]);
+
+  /// The **`data`** read-only property of the
+  /// [CompositionEvent] interface returns the characters generated by the input
+  /// method that raised the event; its exact nature varies depending on the
+  /// type of event
+  /// that generated the `CompositionEvent` object.
   external String get data;
 }
 extension type CompositionEventInit._(JSObject _)
@@ -569,8 +1120,8 @@ extension type CompositionEventInit._(JSObject _)
     String data,
   });
 
-  external set data(String value);
   external String get data;
+  external set data(String value);
 }
 
 /// The **`MutationEvent`** interface provides event properties that are
@@ -623,9 +1174,36 @@ extension type MutationEvent._(JSObject _) implements Event, JSObject {
     String attrNameArg,
     int attrChangeArg,
   ]);
+
+  /// The **`relatedNode`** read-only property of the [MutationEvent] interface
+  /// returns a string indicating the node related to the event, like the
+  /// changed node inside the subtree for `DOMSubtreeModified`.
   external Node? get relatedNode;
+
+  /// The **`prevValue`** read-only property of the [MutationEvent] interface
+  /// returns a string. In `DOMAttrModified` events, it represents the previous
+  /// value of the [Attr] node. In `DOMCharacterDataModified` events, it
+  /// contains the previous value of the [CharacterData] node. In all other
+  /// cases, returns the empty string (`""`).
   external String get prevValue;
+
+  /// The **`newValue`** read-only property of the [MutationEvent] interface
+  /// returns a string. In `DOMAttrModified` events, it represents the new value
+  /// of the [Attr] node. In `DOMCharacterDataModified` events, it contains the
+  /// new value of the [CharacterData] node. In all other cases, returns the
+  /// empty string (`""`).
   external String get newValue;
+
+  /// The **`attrName`** read-only property of the [MutationEvent] interface
+  /// returns a string with the name of the node affected by the
+  /// `DOMAttrModified` event. It has no meaning for other events and is then
+  /// set to the empty string (`""`).
   external String get attrName;
+
+  /// The **`attrChange`** read-only property of the [MutationEvent] interface
+  /// returns a number indicating what kind of change triggered the
+  /// `DOMAttrModified` event. The three possible values are `MODIFICATION`
+  /// (`1`), `ADDITION` (`2`) or `REMOVAL` (`3`). It has no meaning for other
+  /// events and is then set to `0`.
   external int get attrChange;
 }
diff --git a/lib/src/dom/url.dart b/lib/src/dom/url.dart
index f05341b7..4e0ca290 100644
--- a/lib/src/dom/url.dart
+++ b/lib/src/dom/url.dart
@@ -48,28 +48,132 @@ extension type URL._(JSObject _) implements JSObject {
   /// although in practice it seems to have the same effect as
   /// [URL.toString].
   external String toJSON();
-  external set href(String value);
+
+  /// The **`href`** property of the [URL] interface is
+  /// a string containing the whole URL.
   external String get href;
+  external set href(String value);
+
+  /// The **`origin`** read-only property of
+  /// the [URL] interface returns a string containing the
+  /// Unicode serialization of the origin of the represented URL.
+  ///
+  /// The exact structure
+  /// varies depending on the type of URL:
+  ///
+  /// - For `http` or `https` URLs, the scheme followed by
+  /// `'://'`, followed by the domain, followed by `':'`, followed by
+  /// the port (if explicitly specified, unless it is the default port - `80`
+  /// and `443` respectively).
+  /// - For `file:` URLs, the value is browser dependent.
+  /// - for `blob:` URLs, the origin of the URL following `blob:` will
+  /// be used. For example, `"blob:https://mozilla.org"` will be returned as
+  /// `"https://mozilla.org".`
   external String get origin;
-  external set protocol(String value);
+
+  /// The **`protocol`** property of the [URL] interface
+  /// is a string representing the protocol scheme of the URL, including the
+  /// final `':'`.
   external String get protocol;
-  external set username(String value);
+  external set protocol(String value);
+
+  /// The **`username`** property of the [URL] interface
+  /// is a string containing the username specified before the domain name.
   external String get username;
-  external set password(String value);
+  external set username(String value);
+
+  /// The **`password`** property of the [URL] interface
+  /// is a string containing the password specified before the domain name.
+  ///
+  /// If it is set without first setting the [URL.username]
+  /// property, it silently fails.
   external String get password;
-  external set host(String value);
+  external set password(String value);
+
+  /// The **`host`** property of the [URL] interface is
+  /// a string containing the host, that is the [URL.hostname], and then, if the
+  /// of the URL is nonempty, a
+  /// `':'`, followed by the [URL.port] of the URL.
   external String get host;
-  external set hostname(String value);
+  external set host(String value);
+
+  /// The **`hostname`** property of the [URL] interface
+  /// is a string containing the  of the URL.
   external String get hostname;
-  external set port(String value);
+  external set hostname(String value);
+
+  /// The **`port`** property of the [URL] interface is
+  /// a string containing the port number of the URL.
+  ///
+  /// > **Note:** If an input string passed to the
+  /// > [`URL()`](https://developer.mozilla.org/en-US/docs/Web/API/URL/URL)
+  /// > constructor doesn't contain an explicit port number (e.g.,
+  /// > `https://localhost`) or contains a port number that's the default port
+  /// > number corresponding to the protocol part of the input string (e.g.,
+  /// > `https://localhost:443`), then in the
+  /// > [`URL`](https://developer.mozilla.org/en-US/docs/Web/API/URL) object the
+  /// > constructor returns, the value of the port property will be the empty
+  /// > string: `''`.
   external String get port;
-  external set pathname(String value);
+  external set port(String value);
+
+  /// The **`pathname`** property of the [URL] interface represents a location
+  /// in a hierarchical structure. It is a string constructed from a list of
+  /// path segments, each of which is prefixed by a `/` character. If the URL
+  /// has no path segments, the value of its `pathname` property will be the
+  /// empty string.
+  ///
+  /// URLs such as `https` and `http` URLs that have
+  /// [hierarchical schemes](https://www.rfc-editor.org/rfc/rfc3986#section-1.2.3)
+  /// (which the URL standard calls
+  /// "[special schemes](https://url.spec.whatwg.org/#special-scheme)") always
+  /// have at least one (invisible) path segment: the empty string. Thus the
+  /// `pathname` value for such "special scheme" URLs can never be the empty
+  /// string, but will instead always have a least one `/` character.
+  ///
+  /// For example, the URL `https://developer.mozilla.org` has just one path
+  /// segment: the empty string, so its `pathname` value is constructed by
+  /// prefixing a `/` character to the empty string.
+  ///
+  /// Some systems define the term _slug_ to mean the final segment of a
+  /// non-empty path if it identifies a page in human-readable keywords. For
+  /// example, the URL
+  /// `https://example.org/articles/this-that-other-outre-collection` has
+  /// `this-that-other-outre-collection` as its slug.
+  ///
+  /// Some systems use the `;` and `=` characters to delimit parameters and
+  /// parameter values applicable to a path segment. For example, with the URL
+  /// `https://example.org/users;id=42/tasks;state=open?sort=modified`, a system
+  /// might extract and use the path segment parameters `id=42` and `state=open`
+  /// from the path segments `users;id=42` and `tasks;state=open`.
   external String get pathname;
-  external set search(String value);
+  external set pathname(String value);
+
+  /// The **`search`** property of the [URL] interface
+  /// is a search string, also called a _query string_, that is a
+  /// string containing a `'?'` followed by the parameters of the
+  /// URL.
+  ///
+  /// Modern browsers provide the [URL.searchParams] property to make it easy to
+  /// parse out the parameters from the query string.
   external String get search;
+  external set search(String value);
+
+  /// The **`searchParams`** read-only property of the
+  /// [URL] interface returns a [URLSearchParams] object allowing
+  /// access to the `GET` decoded query arguments contained in the URL.
   external URLSearchParams get searchParams;
-  external set hash(String value);
+
+  /// The **`hash`** property of the
+  /// [URL] interface is a string containing a
+  /// `'#'` followed by the fragment identifier of the URL.
+  ///
+  /// The fragment is not
+  /// [URL decoded](https://en.wikipedia.org/wiki/URL_encoding). If the URL does
+  /// not
+  /// have a fragment identifier, this property contains an empty string — `""`.
   external String get hash;
+  external set hash(String value);
 }
 
 /// The **`URLSearchParams`** interface defines utility methods to work with the
@@ -163,5 +267,8 @@ extension type URLSearchParams._(JSObject _) implements JSObject {
   /// will be
   /// preserved).
   external void sort();
+
+  /// The **`size`** read-only property of the [URLSearchParams] interface
+  /// indicates the total number of search parameter entries.
   external int get size;
 }
diff --git a/lib/src/dom/user_timing.dart b/lib/src/dom/user_timing.dart
index b2630193..15bdf7ab 100644
--- a/lib/src/dom/user_timing.dart
+++ b/lib/src/dom/user_timing.dart
@@ -22,10 +22,10 @@ extension type PerformanceMarkOptions._(JSObject _) implements JSObject {
     DOMHighResTimeStamp startTime,
   });
 
-  external set detail(JSAny? value);
   external JSAny? get detail;
-  external set startTime(DOMHighResTimeStamp value);
+  external set detail(JSAny? value);
   external DOMHighResTimeStamp get startTime;
+  external set startTime(DOMHighResTimeStamp value);
 }
 extension type PerformanceMeasureOptions._(JSObject _) implements JSObject {
   external factory PerformanceMeasureOptions({
@@ -35,14 +35,14 @@ extension type PerformanceMeasureOptions._(JSObject _) implements JSObject {
     JSAny end,
   });
 
-  external set detail(JSAny? value);
   external JSAny? get detail;
-  external set start(JSAny value);
+  external set detail(JSAny? value);
   external JSAny get start;
-  external set duration(DOMHighResTimeStamp value);
+  external set start(JSAny value);
   external DOMHighResTimeStamp get duration;
-  external set end(JSAny value);
+  external set duration(DOMHighResTimeStamp value);
   external JSAny get end;
+  external set end(JSAny value);
 }
 
 /// **`PerformanceMark`** is an interface for [PerformanceEntry] objects with an
@@ -64,6 +64,9 @@ extension type PerformanceMark._(JSObject _)
     PerformanceMarkOptions markOptions,
   ]);
 
+  /// The read-only **`detail`** property returns arbitrary metadata that was
+  /// included in the mark upon construction (either when using
+  /// [Performance.mark] or the [PerformanceMark.PerformanceMark] constructor).
   external JSAny? get detail;
 }
 
@@ -79,5 +82,7 @@ extension type PerformanceMark._(JSObject _)
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/PerformanceMeasure).
 extension type PerformanceMeasure._(JSObject _)
     implements PerformanceEntry, JSObject {
+  /// The read-only **`detail`** property returns arbitrary metadata that was
+  /// included in the mark upon construction (when using [Performance.measure].
   external JSAny? get detail;
 }
diff --git a/lib/src/dom/web_animations.dart b/lib/src/dom/web_animations.dart
index 206a692d..79de859a 100644
--- a/lib/src/dom/web_animations.dart
+++ b/lib/src/dom/web_animations.dart
@@ -41,14 +41,19 @@ typedef CompositeOperationOrAuto = String;
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AnimationTimeline).
 extension type AnimationTimeline._(JSObject _) implements JSObject {
   external Animation play([AnimationEffect? effect]);
+
+  /// The **`currentTime`** read-only property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)'s
+  /// [AnimationTimeline] interface returns the timeline's current time in
+  /// milliseconds, or `null` if the timeline is inactive.
   external CSSNumberish? get currentTime;
   external CSSNumberish? get duration;
 }
 extension type DocumentTimelineOptions._(JSObject _) implements JSObject {
   external factory DocumentTimelineOptions({DOMHighResTimeStamp originTime});
 
-  external set originTime(DOMHighResTimeStamp value);
   external DOMHighResTimeStamp get originTime;
+  external set originTime(DOMHighResTimeStamp value);
 }
 
 /// The **`DocumentTimeline`** interface of the
@@ -173,29 +178,107 @@ extension type Animation._(JSObject _) implements EventTarget, JSObject {
   /// [`style`](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes#style)
   /// attribute, where they can be modified and replaced as normal.
   external void commitStyles();
-  external set startTime(CSSNumberish? value);
+
+  /// The **`Animation.startTime`** property of the [Animation] interface is a
+  /// double-precision floating-point value which indicates the scheduled time
+  /// when an animation's playback should begin.
+  ///
+  /// An animation's **start time** is the time value of its [DocumentTimeline]
+  /// when its target [KeyframeEffect] is scheduled to begin playback. An
+  /// animation's **start time** is initially unresolved (meaning that it's
+  /// `null` because it has no value).
   external CSSNumberish? get startTime;
-  external set currentTime(CSSNumberish? value);
+  external set startTime(CSSNumberish? value);
+
+  /// The **`Animation.currentTime`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns and sets the current time value of the animation in milliseconds,
+  /// whether running or paused.
+  ///
+  /// If the animation lacks a [AnimationTimeline], is inactive, or hasn't been
+  /// played yet, `currentTime`'s return value is `null`.
   external CSSNumberish? get currentTime;
-  external set id(String value);
+  external set currentTime(CSSNumberish? value);
+
+  /// The **`Animation.id`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns or sets a string used to identify the animation.
   external String get id;
-  external set effect(AnimationEffect? value);
+  external set id(String value);
+
+  /// The **`Animation.effect`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// gets and sets the target effect of an animation. The target effect may be
+  /// either an effect object of a type based on [AnimationEffect], such as
+  /// [KeyframeEffect], or `null`.
   external AnimationEffect? get effect;
-  external set timeline(AnimationTimeline? value);
+  external set effect(AnimationEffect? value);
+
+  /// The **`Animation.timeline`** property of the [Animation] interface returns
+  /// or sets the [AnimationTimeline] associated with this animation. A timeline
+  /// is a source of time values for synchronization purposes, and is an
+  /// [AnimationTimeline]-based object. By default, the animation's timeline and
+  /// the [Document]'s timeline are the same.
   external AnimationTimeline? get timeline;
-  external set playbackRate(num value);
+  external set timeline(AnimationTimeline? value);
+
+  /// The **`Animation.playbackRate`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns or sets the playback rate of the animation.
+  ///
+  /// Animations have a **playback rate** that provides a scaling factor from
+  /// the rate of change of the animation's [DocumentTimeline] time values to
+  /// the animation's current time. The playback rate is initially `1`.
   external num get playbackRate;
+  external set playbackRate(num value);
+
+  /// The read-only **`Animation.playState`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns an enumerated value describing the playback state of an animation.
   external AnimationPlayState get playState;
+
+  /// The read-only **`Animation.replaceState`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// indicates whether the animation has been
+  /// [removed by the browser automatically](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API/Using_the_Web_Animations_API#automatically_removing_filling_animations)
+  /// after being replaced by another animation.
   external AnimationReplaceState get replaceState;
+
+  /// The read-only **`Animation.pending`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// indicates whether the animation is currently waiting for an asynchronous
+  /// operation such as initiating playback or pausing a running animation.
   external bool get pending;
+
+  /// The read-only **`Animation.ready`** property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns a `Promise` which resolves when the animation is ready to play. A
+  /// new promise is created every time the animation enters the `"pending"`
+  /// [play state](https://developer.mozilla.org/en-US/docs/Web/API/Animation/playState)
+  /// as well as when the animation is canceled, since in both of those
+  /// scenarios, the animation is ready to be started again.
+  ///
+  /// > **Note:** Since the same `Promise` is used for both pending `play` and
+  /// > pending `pause` requests, authors are advised to check the state of the
+  /// > animation when the promise is resolved.
   external JSPromise<Animation> get ready;
+
+  /// The **`Animation.finished`** read-only property of the
+  /// [Web Animations API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API)
+  /// returns a `Promise` which resolves once the animation has finished
+  /// playing.
+  ///
+  /// > **Note:** Every time the animation leaves the `finished` play state
+  /// > (that is, when it starts playing again), a new `Promise` is created for
+  /// > this property. The new `Promise` will resolve once the new animation
+  /// > sequence has completed.
   external JSPromise<Animation> get finished;
-  external set onfinish(EventHandler value);
   external EventHandler get onfinish;
-  external set oncancel(EventHandler value);
+  external set onfinish(EventHandler value);
   external EventHandler get oncancel;
-  external set onremove(EventHandler value);
+  external set oncancel(EventHandler value);
   external EventHandler get onremove;
+  external set onremove(EventHandler value);
 }
 
 /// The `AnimationEffect` interface of the
@@ -261,24 +344,24 @@ extension type EffectTiming._(JSObject _) implements JSObject {
     String easing,
   });
 
-  external set delay(num value);
   external num get delay;
-  external set endDelay(num value);
+  external set delay(num value);
   external num get endDelay;
-  external set playbackRate(num value);
+  external set endDelay(num value);
   external num get playbackRate;
-  external set duration(JSAny value);
+  external set playbackRate(num value);
   external JSAny get duration;
-  external set fill(FillMode value);
+  external set duration(JSAny value);
   external FillMode get fill;
-  external set iterationStart(num value);
+  external set fill(FillMode value);
   external num get iterationStart;
-  external set iterations(num value);
+  external set iterationStart(num value);
   external num get iterations;
-  external set direction(PlaybackDirection value);
+  external set iterations(num value);
   external PlaybackDirection get direction;
-  external set easing(String value);
+  external set direction(PlaybackDirection value);
   external String get easing;
+  external set easing(String value);
 }
 extension type OptionalEffectTiming._(JSObject _) implements JSObject {
   external factory OptionalEffectTiming({
@@ -293,24 +376,24 @@ extension type OptionalEffectTiming._(JSObject _) implements JSObject {
     String easing,
   });
 
-  external set playbackRate(num value);
   external num get playbackRate;
-  external set delay(num value);
+  external set playbackRate(num value);
   external num get delay;
-  external set endDelay(num value);
+  external set delay(num value);
   external num get endDelay;
-  external set fill(FillMode value);
+  external set endDelay(num value);
   external FillMode get fill;
-  external set iterationStart(num value);
+  external set fill(FillMode value);
   external num get iterationStart;
-  external set iterations(num value);
+  external set iterationStart(num value);
   external num get iterations;
-  external set duration(JSAny value);
+  external set iterations(num value);
   external JSAny get duration;
-  external set direction(PlaybackDirection value);
+  external set duration(JSAny value);
   external PlaybackDirection get direction;
-  external set easing(String value);
+  external set direction(PlaybackDirection value);
   external String get easing;
+  external set easing(String value);
 }
 extension type ComputedEffectTiming._(JSObject _)
     implements EffectTiming, JSObject {
@@ -332,18 +415,18 @@ extension type ComputedEffectTiming._(JSObject _)
     num? currentIteration,
   });
 
-  external set startTime(CSSNumberish value);
   external CSSNumberish get startTime;
-  external set endTime(CSSNumberish value);
+  external set startTime(CSSNumberish value);
   external CSSNumberish get endTime;
-  external set activeDuration(CSSNumberish value);
+  external set endTime(CSSNumberish value);
   external CSSNumberish get activeDuration;
-  external set localTime(CSSNumberish? value);
+  external set activeDuration(CSSNumberish value);
   external CSSNumberish? get localTime;
-  external set progress(num? value);
+  external set localTime(CSSNumberish? value);
   external num? get progress;
-  external set currentIteration(num? value);
+  external set progress(num? value);
   external num? get currentIteration;
+  external set currentIteration(num? value);
 }
 
 /// The **`KeyframeEffect`** interface of the
@@ -373,14 +456,36 @@ extension type KeyframeEffect._(JSObject _)
   /// the keyframes that make up the affected `KeyframeEffect` with a new set of
   /// keyframes.
   external void setKeyframes(JSObject? keyframes);
-  external set iterationComposite(IterationCompositeOperation value);
+
+  /// The **`iterationComposite`** property of a [KeyframeEffect] resolves how
+  /// the animation's property value changes accumulate or override each other
+  /// upon each of the animation's iterations.
   external IterationCompositeOperation get iterationComposite;
-  external set target(Element? value);
+  external set iterationComposite(IterationCompositeOperation value);
+
+  /// The **`target`** property of a [KeyframeEffect] interface represents the
+  /// element or pseudo-element being animated. It may be `null` for animations
+  /// that do not target a specific element. It performs as both a getter and a
+  /// setter, except with animations and transitions generated by CSS.
   external Element? get target;
-  external set pseudoElement(String? value);
+  external set target(Element? value);
+
+  /// The **`pseudoElement`** property of a [KeyframeEffect] interface is a
+  /// string representing the pseudo-element being animated. It may be `null`
+  /// for animations that do not target a pseudo-element. It performs as both a
+  /// getter and a setter, except with animations and transitions generated by
+  /// CSS.
+  ///
+  /// > **Note:** If set to the legacy single-colon syntax of , , , or , the
+  /// > string is transformed into its double-colon modern version (, , , and ,
+  /// > respectively).
   external String? get pseudoElement;
-  external set composite(CompositeOperation value);
+  external set pseudoElement(String? value);
+
+  /// The **`composite`** property of a [KeyframeEffect] resolves how an
+  /// element's animation impacts its underlying property values.
   external CompositeOperation get composite;
+  external set composite(CompositeOperation value);
 }
 extension type BaseComputedKeyframe._(JSObject _) implements JSObject {
   external factory BaseComputedKeyframe({
@@ -390,14 +495,14 @@ extension type BaseComputedKeyframe._(JSObject _) implements JSObject {
     CompositeOperationOrAuto composite,
   });
 
-  external set offset(num? value);
   external num? get offset;
-  external set computedOffset(num value);
+  external set offset(num? value);
   external num get computedOffset;
-  external set easing(String value);
+  external set computedOffset(num value);
   external String get easing;
-  external set composite(CompositeOperationOrAuto value);
+  external set easing(String value);
   external CompositeOperationOrAuto get composite;
+  external set composite(CompositeOperationOrAuto value);
 }
 extension type BasePropertyIndexedKeyframe._(JSObject _) implements JSObject {
   external factory BasePropertyIndexedKeyframe({
@@ -406,12 +511,12 @@ extension type BasePropertyIndexedKeyframe._(JSObject _) implements JSObject {
     JSAny composite,
   });
 
-  external set offset(JSAny? value);
   external JSAny? get offset;
-  external set easing(JSAny value);
+  external set offset(JSAny? value);
   external JSAny get easing;
-  external set composite(JSAny value);
+  external set easing(JSAny value);
   external JSAny get composite;
+  external set composite(JSAny value);
 }
 extension type BaseKeyframe._(JSObject _) implements JSObject {
   external factory BaseKeyframe({
@@ -420,12 +525,12 @@ extension type BaseKeyframe._(JSObject _) implements JSObject {
     CompositeOperationOrAuto composite,
   });
 
-  external set offset(num? value);
   external num? get offset;
-  external set easing(String value);
+  external set offset(num? value);
   external String get easing;
-  external set composite(CompositeOperationOrAuto value);
+  external set easing(String value);
   external CompositeOperationOrAuto get composite;
+  external set composite(CompositeOperationOrAuto value);
 }
 extension type KeyframeEffectOptions._(JSObject _)
     implements EffectTiming, JSObject {
@@ -444,12 +549,12 @@ extension type KeyframeEffectOptions._(JSObject _)
     String? pseudoElement,
   });
 
-  external set iterationComposite(IterationCompositeOperation value);
   external IterationCompositeOperation get iterationComposite;
-  external set composite(CompositeOperation value);
+  external set iterationComposite(IterationCompositeOperation value);
   external CompositeOperation get composite;
-  external set pseudoElement(String? value);
+  external set composite(CompositeOperation value);
   external String? get pseudoElement;
+  external set pseudoElement(String? value);
 }
 extension type KeyframeAnimationOptions._(JSObject _)
     implements KeyframeEffectOptions, JSObject {
@@ -472,18 +577,18 @@ extension type KeyframeAnimationOptions._(JSObject _)
     AnimationTimeline? timeline,
   });
 
-  external set rangeStart(JSAny value);
   external JSAny get rangeStart;
-  external set rangeEnd(JSAny value);
+  external set rangeStart(JSAny value);
   external JSAny get rangeEnd;
-  external set id(String value);
+  external set rangeEnd(JSAny value);
   external String get id;
-  external set timeline(AnimationTimeline? value);
+  external set id(String value);
   external AnimationTimeline? get timeline;
+  external set timeline(AnimationTimeline? value);
 }
 extension type GetAnimationsOptions._(JSObject _) implements JSObject {
   external factory GetAnimationsOptions({bool subtree});
 
-  external set subtree(bool value);
   external bool get subtree;
+  external set subtree(bool value);
 }
diff --git a/lib/src/dom/web_animations_2.dart b/lib/src/dom/web_animations_2.dart
index 541b14af..317ab355 100644
--- a/lib/src/dom/web_animations_2.dart
+++ b/lib/src/dom/web_animations_2.dart
@@ -50,10 +50,10 @@ extension type TimelineRangeOffset._(JSObject _) implements JSObject {
     CSSNumericValue offset,
   });
 
-  external set rangeName(String? value);
   external String? get rangeName;
-  external set offset(CSSNumericValue value);
+  external set rangeName(String? value);
   external CSSNumericValue get offset;
+  external set offset(CSSNumericValue value);
 }
 
 /// The AnimationPlaybackEvent interface of the
@@ -73,7 +73,17 @@ extension type AnimationPlaybackEvent._(JSObject _) implements Event, JSObject {
     AnimationPlaybackEventInit eventInitDict,
   ]);
 
+  /// The **`currentTime`** read-only property of the [AnimationPlaybackEvent]
+  /// interface represents the current time of the animation that generated the
+  /// event at the moment the event is queued. This will be unresolved if the
+  /// animation was `idle` at the time the event was generated.
   external CSSNumberish? get currentTime;
+
+  /// The **`timelineTime`** read-only property of the [AnimationPlaybackEvent]
+  /// interface represents the time value of the animation's [AnimationTimeline]
+  /// at the moment the event is queued. This will be unresolved if the
+  /// animation was not associated with a timeline at the time the event was
+  /// generated or if the associated timeline was inactive.
   external CSSNumberish? get timelineTime;
 }
 extension type AnimationPlaybackEventInit._(JSObject _)
@@ -86,8 +96,8 @@ extension type AnimationPlaybackEventInit._(JSObject _)
     CSSNumberish? timelineTime,
   });
 
-  external set currentTime(CSSNumberish? value);
   external CSSNumberish? get currentTime;
-  external set timelineTime(CSSNumberish? value);
+  external set currentTime(CSSNumberish? value);
   external CSSNumberish? get timelineTime;
+  external set timelineTime(CSSNumberish? value);
 }
diff --git a/lib/src/dom/web_locks.dart b/lib/src/dom/web_locks.dart
index 432fd1cb..6da61e78 100644
--- a/lib/src/dom/web_locks.dart
+++ b/lib/src/dom/web_locks.dart
@@ -79,14 +79,14 @@ extension type LockOptions._(JSObject _) implements JSObject {
     AbortSignal signal,
   });
 
-  external set mode(LockMode value);
   external LockMode get mode;
-  external set ifAvailable(bool value);
+  external set mode(LockMode value);
   external bool get ifAvailable;
-  external set steal(bool value);
+  external set ifAvailable(bool value);
   external bool get steal;
-  external set signal(AbortSignal value);
+  external set steal(bool value);
   external AbortSignal get signal;
+  external set signal(AbortSignal value);
 }
 extension type LockManagerSnapshot._(JSObject _) implements JSObject {
   external factory LockManagerSnapshot({
@@ -94,10 +94,10 @@ extension type LockManagerSnapshot._(JSObject _) implements JSObject {
     JSArray<LockInfo> pending,
   });
 
-  external set held(JSArray<LockInfo> value);
   external JSArray<LockInfo> get held;
-  external set pending(JSArray<LockInfo> value);
+  external set held(JSArray<LockInfo> value);
   external JSArray<LockInfo> get pending;
+  external set pending(JSArray<LockInfo> value);
 }
 extension type LockInfo._(JSObject _) implements JSObject {
   external factory LockInfo({
@@ -106,12 +106,12 @@ extension type LockInfo._(JSObject _) implements JSObject {
     String clientId,
   });
 
-  external set name(String value);
   external String get name;
-  external set mode(LockMode value);
+  external set name(String value);
   external LockMode get mode;
-  external set clientId(String value);
+  external set mode(LockMode value);
   external String get clientId;
+  external set clientId(String value);
 }
 
 /// The **`Lock`** interface of the
@@ -126,6 +126,23 @@ extension type LockInfo._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/Lock).
 extension type Lock._(JSObject _) implements JSObject {
+  /// The **`name`** read-only property of
+  /// the [Lock] interface returns the _name_ passed to
+  /// [LockManager.request] selected when the lock was requested.
+  ///
+  /// The name of a lock is passed by script when the lock is requested. The
+  /// name is selected
+  /// by the developer to represent an abstract resource for which use is being
+  /// coordinated
+  /// across multiple tabs, workers, or other code within the origin. For
+  /// example, if only one
+  /// tab of a web application should be synchronizing network resources with an
+  /// offline
+  /// database, it could use a lock name such as `"net_db_sync"`.
   external String get name;
+
+  /// The **`mode`** read-only property of the [Lock] interface returns the
+  /// access mode passed to [LockManager.request] when the lock was requested.
+  /// The mode is either `"exclusive"` (the default) or `"shared"`.
   external LockMode get mode;
 }
diff --git a/lib/src/dom/webaudio.dart b/lib/src/dom/webaudio.dart
index 0caeb2df..93e1496b 100644
--- a/lib/src/dom/webaudio.dart
+++ b/lib/src/dom/webaudio.dart
@@ -295,15 +295,45 @@ extension type BaseAudioContext._(JSObject _) implements EventTarget, JSObject {
     DecodeSuccessCallback? successCallback,
     DecodeErrorCallback? errorCallback,
   ]);
+
+  /// The `destination` property of the [BaseAudioContext]
+  /// interface returns an [AudioDestinationNode] representing the final
+  /// destination of all audio in the context. It often represents an actual
+  /// audio-rendering
+  /// device such as your device's speakers.
   external AudioDestinationNode get destination;
+
+  /// The `sampleRate` property of the [BaseAudioContext] interface returns a
+  /// floating point number representing the sample rate, in samples per second,
+  /// used by all nodes in this audio context.
+  /// This limitation means that sample-rate converters are not supported.
   external num get sampleRate;
+
+  /// The `currentTime` read-only property of the [BaseAudioContext]
+  /// interface returns a double representing an ever-increasing hardware
+  /// timestamp in seconds that
+  /// can be used for scheduling audio playback, visualizing timelines, etc. It
+  /// starts at 0.
   external num get currentTime;
+
+  /// The `listener` property of the [BaseAudioContext] interface
+  /// returns an [AudioListener] object that can then be used for
+  /// implementing 3D audio spatialization.
   external AudioListener get listener;
+
+  /// The `state` read-only property of the [BaseAudioContext]
+  /// interface returns the current state of the `AudioContext`.
   external AudioContextState get state;
   external int get renderQuantumSize;
+
+  /// The `audioWorklet` read-only property of the
+  /// [BaseAudioContext] interface returns an instance of
+  /// [AudioWorklet] that can be used for adding
+  /// [AudioWorkletProcessor]-derived classes which implement custom audio
+  /// processing.
   external AudioWorklet get audioWorklet;
-  external set onstatechange(EventHandler value);
   external EventHandler get onstatechange;
+  external set onstatechange(EventHandler value);
 }
 
 /// The `AudioContext` interface represents an audio-processing graph built from
@@ -439,12 +469,40 @@ extension type AudioContext._(JSObject _)
   /// For more details about media stream destination nodes, check out the
   /// [MediaStreamAudioDestinationNode] reference page.
   external MediaStreamAudioDestinationNode createMediaStreamDestination();
+
+  /// The **`baseLatency`** read-only property of the
+  /// [AudioContext] interface returns a double that represents the number of
+  /// seconds of processing latency incurred by the `AudioContext` passing an
+  /// audio
+  /// buffer from the [AudioDestinationNode] — i.e. the end of the audio graph —
+  /// into the host system's audio subsystem ready for playing.
+  ///
+  /// > **Note:** You can request a certain latency during
+  /// > [AudioContext.AudioContext] with the
+  /// > `latencyHint` option, but the browser may ignore the option.
   external num get baseLatency;
+
+  /// The **`outputLatency`** read-only property of
+  /// the [AudioContext] Interface provides an estimation of the output latency
+  /// of the current audio context.
+  ///
+  /// This is the time, in seconds, between the browser passing an audio buffer
+  /// out of an
+  /// audio graph over to the host system's audio subsystem to play, and the
+  /// time at which the
+  /// first sample in the buffer is actually processed by the audio output
+  /// device.
+  ///
+  /// It varies depending on the platform and the available hardware.
   external num get outputLatency;
+
+  /// The **`sinkId`** read-only property of the
+  /// [AudioContext] interface returns the sink ID of the current output audio
+  /// device.
   external JSAny get sinkId;
   external AudioRenderCapacity get renderCapacity;
-  external set onsinkchange(EventHandler value);
   external EventHandler get onsinkchange;
+  external set onsinkchange(EventHandler value);
 }
 extension type AudioContextOptions._(JSObject _) implements JSObject {
   external factory AudioContextOptions({
@@ -454,20 +512,20 @@ extension type AudioContextOptions._(JSObject _) implements JSObject {
     JSAny renderSizeHint,
   });
 
-  external set latencyHint(JSAny value);
   external JSAny get latencyHint;
-  external set sampleRate(num value);
+  external set latencyHint(JSAny value);
   external num get sampleRate;
-  external set sinkId(JSAny value);
+  external set sampleRate(num value);
   external JSAny get sinkId;
-  external set renderSizeHint(JSAny value);
+  external set sinkId(JSAny value);
   external JSAny get renderSizeHint;
+  external set renderSizeHint(JSAny value);
 }
 extension type AudioSinkOptions._(JSObject _) implements JSObject {
   external factory AudioSinkOptions({required AudioSinkType type});
 
-  external set type(AudioSinkType value);
   external AudioSinkType get type;
+  external set type(AudioSinkType value);
 }
 
 /// The **`AudioSinkInfo`** interface of the [Web Audio API] represents
@@ -479,6 +537,8 @@ extension type AudioSinkOptions._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AudioSinkInfo).
 extension type AudioSinkInfo._(JSObject _) implements JSObject {
+  /// The **`type`** read-only property of the [AudioSinkInfo] interface returns
+  /// the type of the audio output device.
   external AudioSinkType get type;
 }
 extension type AudioTimestamp._(JSObject _) implements JSObject {
@@ -487,23 +547,23 @@ extension type AudioTimestamp._(JSObject _) implements JSObject {
     DOMHighResTimeStamp performanceTime,
   });
 
-  external set contextTime(num value);
   external num get contextTime;
-  external set performanceTime(DOMHighResTimeStamp value);
+  external set contextTime(num value);
   external DOMHighResTimeStamp get performanceTime;
+  external set performanceTime(DOMHighResTimeStamp value);
 }
 extension type AudioRenderCapacity._(JSObject _)
     implements EventTarget, JSObject {
   external void start([AudioRenderCapacityOptions options]);
   external void stop();
-  external set onupdate(EventHandler value);
   external EventHandler get onupdate;
+  external set onupdate(EventHandler value);
 }
 extension type AudioRenderCapacityOptions._(JSObject _) implements JSObject {
   external factory AudioRenderCapacityOptions({num updateInterval});
 
-  external set updateInterval(num value);
   external num get updateInterval;
+  external set updateInterval(num value);
 }
 extension type AudioRenderCapacityEvent._(JSObject _)
     implements Event, JSObject {
@@ -529,14 +589,14 @@ extension type AudioRenderCapacityEventInit._(JSObject _)
     num underrunRatio,
   });
 
-  external set timestamp(num value);
   external num get timestamp;
-  external set averageLoad(num value);
+  external set timestamp(num value);
   external num get averageLoad;
-  external set peakLoad(num value);
+  external set averageLoad(num value);
   external num get peakLoad;
-  external set underrunRatio(num value);
+  external set peakLoad(num value);
   external num get underrunRatio;
+  external set underrunRatio(num value);
 }
 
 /// The `OfflineAudioContext` interface is an [AudioContext] interface
@@ -598,9 +658,14 @@ extension type OfflineAudioContext._(JSObject _)
   /// ensure the
   /// precise suspension.
   external JSPromise<JSAny?> suspend(num suspendTime);
+
+  /// The **`length`** property of the
+  /// [OfflineAudioContext] interface returns an integer representing the size
+  /// of
+  /// the buffer in sample-frames.
   external int get length;
-  external set oncomplete(EventHandler value);
   external EventHandler get oncomplete;
+  external set oncomplete(EventHandler value);
 }
 extension type OfflineAudioContextOptions._(JSObject _) implements JSObject {
   external factory OfflineAudioContextOptions({
@@ -610,14 +675,14 @@ extension type OfflineAudioContextOptions._(JSObject _) implements JSObject {
     JSAny renderSizeHint,
   });
 
-  external set numberOfChannels(int value);
   external int get numberOfChannels;
-  external set length(int value);
+  external set numberOfChannels(int value);
   external int get length;
-  external set sampleRate(num value);
+  external set length(int value);
   external num get sampleRate;
-  external set renderSizeHint(JSAny value);
+  external set sampleRate(num value);
   external JSAny get renderSizeHint;
+  external set renderSizeHint(JSAny value);
 }
 
 /// The
@@ -642,6 +707,9 @@ extension type OfflineAudioCompletionEvent._(JSObject _)
     OfflineAudioCompletionEventInit eventInitDict,
   );
 
+  /// The **`renderedBuffer`** read-only property of the
+  /// [OfflineAudioCompletionEvent] interface is an [AudioBuffer]
+  /// containing the result of processing an [OfflineAudioContext].
   external AudioBuffer get renderedBuffer;
 }
 extension type OfflineAudioCompletionEventInit._(JSObject _)
@@ -653,8 +721,8 @@ extension type OfflineAudioCompletionEventInit._(JSObject _)
     required AudioBuffer renderedBuffer,
   });
 
-  external set renderedBuffer(AudioBuffer value);
   external AudioBuffer get renderedBuffer;
+  external set renderedBuffer(AudioBuffer value);
 }
 
 /// The **`AudioBuffer`** interface represents a short audio asset residing in
@@ -703,9 +771,27 @@ extension type AudioBuffer._(JSObject _) implements JSObject {
     int channelNumber, [
     int bufferOffset,
   ]);
+
+  /// The **`sampleRate`** property of the [AudioBuffer] interface returns a
+  /// float representing the sample rate, in samples per second, of the PCM data
+  /// stored in the buffer.
   external num get sampleRate;
+
+  /// The **`length`** property of the [AudioBuffer]
+  /// interface returns an integer representing the length, in sample-frames, of
+  /// the PCM data
+  /// stored in the buffer.
   external int get length;
+
+  /// The **`duration`** property of the [AudioBuffer] interface returns a
+  /// double representing the duration, in seconds, of the PCM data stored in
+  /// the buffer.
   external num get duration;
+
+  /// The `numberOfChannels` property of the [AudioBuffer]
+  /// interface returns an integer representing the number of discrete audio
+  /// channels
+  /// described by the PCM data stored in the buffer.
   external int get numberOfChannels;
 }
 extension type AudioBufferOptions._(JSObject _) implements JSObject {
@@ -715,12 +801,12 @@ extension type AudioBufferOptions._(JSObject _) implements JSObject {
     required num sampleRate,
   });
 
-  external set numberOfChannels(int value);
   external int get numberOfChannels;
-  external set length(int value);
+  external set numberOfChannels(int value);
   external int get length;
-  external set sampleRate(num value);
+  external set length(int value);
   external num get sampleRate;
+  external set sampleRate(num value);
 }
 
 /// The **`AudioNode`** interface is a generic interface for representing an
@@ -762,15 +848,59 @@ extension type AudioNode._(JSObject _) implements EventTarget, JSObject {
     int output,
     int input,
   ]);
+
+  /// The read-only `context` property of the
+  /// [AudioNode] interface returns the associated
+  /// [BaseAudioContext], that is the object representing the processing graph
+  /// the node is participating in.
   external BaseAudioContext get context;
+
+  /// The `numberOfInputs` property of
+  /// the [AudioNode] interface returns the number of inputs feeding the
+  /// node. Source nodes are defined as nodes having a `numberOfInputs`
+  /// property with a value of 0.
   external int get numberOfInputs;
+
+  /// The `numberOfOutputs` property of
+  /// the [AudioNode] interface returns the number of outputs coming out of
+  /// the node. Destination nodes — like [AudioDestinationNode] — have
+  /// a value of 0 for this attribute.
   external int get numberOfOutputs;
-  external set channelCount(int value);
+
+  /// The **`channelCount`** property of the [AudioNode] interface represents an
+  /// integer used to determine how many channels are used when
+  /// [up-mixing and down-mixing](https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#up-mixing_and_down-mixing)
+  /// connections to any inputs to the node.
+  ///
+  /// `channelCount`'s usage and precise definition depend on the value of
+  /// [AudioNode.channelCountMode]:
+  ///
+  /// - It is ignored if the `channelCountMode` value is `max`.
+  /// - It is used as a maximum value if the `channelCountMode` value is
+  ///   `clamped-max`.
+  /// - It is used as the exact value if the `channelCountMode` value is
+  ///   `explicit`.
   external int get channelCount;
-  external set channelCountMode(ChannelCountMode value);
+  external set channelCount(int value);
+
+  /// The `channelCountMode` property of the [AudioNode] interface represents an
+  /// enumerated value describing the way channels must be matched between the
+  /// node's inputs and outputs.
   external ChannelCountMode get channelCountMode;
-  external set channelInterpretation(ChannelInterpretation value);
+  external set channelCountMode(ChannelCountMode value);
+
+  /// The **`channelInterpretation`** property of the [AudioNode] interface
+  /// represents an enumerated value describing how input channels are mapped to
+  /// output channels when the number of inputs/outputs is different. For
+  /// example, this setting defines how a mono input will be up-mixed to a
+  /// stereo or 5.1 channel output, or how a quad channel input will be
+  /// down-mixed to a stereo or mono output.
+  ///
+  /// The property has two options: `speakers` and `discrete`. These are
+  /// documented in [Basic concepts behind Web Audio API > up-mixing and
+  /// down-mixing](/en-US/docs/Web/API/Web_Audio_API/Basic_concepts_behind_Web_Audio_API#up-mixing_and_down-mixing).
   external ChannelInterpretation get channelInterpretation;
+  external set channelInterpretation(ChannelInterpretation value);
 }
 extension type AudioNodeOptions._(JSObject _) implements JSObject {
   external factory AudioNodeOptions({
@@ -779,12 +909,12 @@ extension type AudioNodeOptions._(JSObject _) implements JSObject {
     ChannelInterpretation channelInterpretation,
   });
 
-  external set channelCount(int value);
   external int get channelCount;
-  external set channelCountMode(ChannelCountMode value);
+  external set channelCount(int value);
   external ChannelCountMode get channelCountMode;
-  external set channelInterpretation(ChannelInterpretation value);
+  external set channelCountMode(ChannelCountMode value);
   external ChannelInterpretation get channelInterpretation;
+  external set channelInterpretation(ChannelInterpretation value);
 }
 
 /// The Web Audio API's `AudioParam` interface represents an audio-related
@@ -878,12 +1008,36 @@ extension type AudioParam._(JSObject _) implements JSObject {
   /// `AudioParam` but holds its value at a given time until further changes are
   /// made using other methods.
   external AudioParam cancelAndHoldAtTime(num cancelTime);
-  external set value(num value);
+
+  /// The [Web Audio
+  /// API's](https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API)
+  /// [AudioParam] interface property **`value`** gets
+  /// or sets the value of this [AudioParam] at the current time. Initially, the
+  /// value is set to [AudioParam.defaultValue].
+  ///
+  /// Setting `value` has the same effect as
+  /// calling [AudioParam.setValueAtTime] with the time returned by the
+  /// `AudioContext`'s [BaseAudioContext.currentTime]
+  /// property.
   external num get value;
-  external set automationRate(AutomationRate value);
+  external set value(num value);
   external AutomationRate get automationRate;
+  external set automationRate(AutomationRate value);
+
+  /// The **`defaultValue`**
+  /// read-only property of the [AudioParam] interface represents the initial
+  /// value of the attributes as defined by the specific [AudioNode] creating
+  /// the `AudioParam`.
   external num get defaultValue;
+
+  /// The **`minValue`**
+  /// read-only property of the [AudioParam] interface represents the minimum
+  /// possible value for the parameter's nominal (effective) range.
   external num get minValue;
+
+  /// The **`maxValue`**
+  /// read-only property of the [AudioParam] interface represents the maximum
+  /// possible value for the parameter's nominal (effective) range.
   external num get maxValue;
 }
 
@@ -927,8 +1081,8 @@ extension type AudioScheduledSourceNode._(JSObject _)
   /// > **Note:** If a scheduled stop time occurs before the node's scheduled
   /// > start time, the node never starts to play.
   external void stop([num when]);
-  external set onended(EventHandler value);
   external EventHandler get onended;
+  external set onended(EventHandler value);
 }
 
 /// The **`AnalyserNode`** interface represents a node able to provide real-time
@@ -1022,15 +1176,46 @@ extension type AnalyserNode._(JSObject _) implements AudioNode, JSObject {
   /// elements are dropped. If it has more elements than needed, excess elements
   /// are ignored.
   external void getByteTimeDomainData(JSUint8Array array);
-  external set fftSize(int value);
+
+  /// The **`fftSize`** property of the [AnalyserNode] interface is an unsigned
+  /// long value and represents the window size in samples that is used when
+  /// performing a
+  /// [Fast Fourier Transform](https://en.wikipedia.org/wiki/Fast_Fourier_transform)
+  /// (FFT) to get frequency domain data.
   external int get fftSize;
+  external set fftSize(int value);
+
+  /// The **`frequencyBinCount`** read-only property of the [AnalyserNode]
+  /// interface contains the total number of data points available to
+  /// [AudioContext] [BaseAudioContext.sampleRate]. This is half of the `value`
+  /// of the [AnalyserNode.fftSize]. The two methods' indices have a linear
+  /// relationship with the frequencies they represent, between 0 and the
+  /// [Nyquist frequency](https://en.wikipedia.org/wiki/Nyquist_frequency).
   external int get frequencyBinCount;
-  external set minDecibels(num value);
+
+  /// The **`minDecibels`** property of the [AnalyserNode] interface is a double
+  /// value representing the minimum power value in the scaling range for the
+  /// FFT analysis data, for conversion to unsigned byte values — basically,
+  /// this specifies the minimum value for the range of results when using
+  /// `getByteFrequencyData()`.
   external num get minDecibels;
-  external set maxDecibels(num value);
+  external set minDecibels(num value);
+
+  /// The **`maxDecibels`** property of the [AnalyserNode] interface is a double
+  /// value representing the maximum power value in the scaling range for the
+  /// FFT analysis data, for conversion to unsigned byte values — basically,
+  /// this specifies the maximum value for the range of results when using
+  /// `getByteFrequencyData()`.
   external num get maxDecibels;
-  external set smoothingTimeConstant(num value);
+  external set maxDecibels(num value);
+
+  /// The **`smoothingTimeConstant`** property of the [AnalyserNode] interface
+  /// is a double value representing the averaging constant with the last
+  /// analysis frame. It's basically an average between the current buffer and
+  /// the last buffer the `AnalyserNode` processed, and results in a much
+  /// smoother set of value changes over time.
   external num get smoothingTimeConstant;
+  external set smoothingTimeConstant(num value);
 }
 extension type AnalyserOptions._(JSObject _)
     implements AudioNodeOptions, JSObject {
@@ -1044,14 +1229,14 @@ extension type AnalyserOptions._(JSObject _)
     num smoothingTimeConstant,
   });
 
-  external set fftSize(int value);
   external int get fftSize;
-  external set maxDecibels(num value);
+  external set fftSize(int value);
   external num get maxDecibels;
-  external set minDecibels(num value);
+  external set maxDecibels(num value);
   external num get minDecibels;
-  external set smoothingTimeConstant(num value);
+  external set minDecibels(num value);
   external num get smoothingTimeConstant;
+  external set smoothingTimeConstant(num value);
 }
 
 /// The **`AudioBufferSourceNode`** interface is an [AudioScheduledSourceNode]
@@ -1124,16 +1309,71 @@ extension type AudioBufferSourceNode._(JSObject _)
     num offset,
     num duration,
   ]);
-  external set buffer(AudioBuffer? value);
+
+  /// The **`buffer`** property of the [AudioBufferSourceNode] interface
+  /// provides the ability to play back audio using an [AudioBuffer] as the
+  /// source of the sound data.
+  ///
+  /// If the `buffer` property is set to the value `null`, the node
+  /// generates a single channel containing silence (that is, every sample is
+  /// 0).
   external AudioBuffer? get buffer;
+  external set buffer(AudioBuffer? value);
+
+  /// The **`playbackRate`** property of
+  /// the [AudioBufferSourceNode] interface Is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] that
+  /// defines the speed at which the audio asset will be played.
+  ///
+  /// A value of 1.0 indicates it should play at the same speed as its sampling
+  /// rate,
+  /// values less than 1.0 cause the sound to play more slowly, while values
+  /// greater than
+  /// 1.0 result in audio playing faster than normal. The default value is
+  /// `1.0`.
+  /// When set to another value, the `AudioBufferSourceNode` resamples the audio
+  /// before sending it to the output.
   external AudioParam get playbackRate;
+
+  /// The **`detune`** property of the
+  /// [AudioBufferSourceNode] interface is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam]
+  /// representing detuning of oscillation in
+  /// [cents](https://en.wikipedia.org/wiki/Cent_%28music%29).
+  ///
+  /// For example, values of +100 and -100 detune the source up or down by one
+  /// semitone,
+  /// while +1200 and -1200 detune it up or down by one octave.
   external AudioParam get detune;
-  external set loop(bool value);
+
+  /// The `loop` property of the [AudioBufferSourceNode]
+  /// interface is a Boolean indicating if the audio asset must be replayed when
+  /// the end of
+  /// the [AudioBuffer] is reached.
+  ///
+  /// The `loop` property's default value is `false`.
   external bool get loop;
-  external set loopStart(num value);
+  external set loop(bool value);
+
+  /// The **`loopStart`** property of the [AudioBufferSourceNode] interface is a
+  /// floating-point value indicating, in seconds, where in the [AudioBuffer]
+  /// the restart of the play must happen.
+  ///
+  /// The `loopStart` property's default value is `0`.
   external num get loopStart;
-  external set loopEnd(num value);
+  external set loopStart(num value);
+
+  /// The `loopEnd` property of the [AudioBufferSourceNode]
+  /// interface specifies is a floating point number specifying, in seconds, at
+  /// what offset
+  /// into playing the [AudioBuffer] playback should loop back to the time
+  /// indicated by the [AudioBufferSourceNode.loopStart] property.
+  /// This is only used if the [AudioBufferSourceNode.loop] property is
+  /// `true`.
   external num get loopEnd;
+  external set loopEnd(num value);
 }
 extension type AudioBufferSourceOptions._(JSObject _) implements JSObject {
   external factory AudioBufferSourceOptions({
@@ -1145,18 +1385,18 @@ extension type AudioBufferSourceOptions._(JSObject _) implements JSObject {
     num playbackRate,
   });
 
-  external set buffer(AudioBuffer? value);
   external AudioBuffer? get buffer;
-  external set detune(num value);
+  external set buffer(AudioBuffer? value);
   external num get detune;
-  external set loop(bool value);
+  external set detune(num value);
   external bool get loop;
-  external set loopEnd(num value);
+  external set loop(bool value);
   external num get loopEnd;
-  external set loopStart(num value);
+  external set loopEnd(num value);
   external num get loopStart;
-  external set playbackRate(num value);
+  external set loopStart(num value);
   external num get playbackRate;
+  external set playbackRate(num value);
 }
 
 /// The `AudioDestinationNode` interface represents the end destination of an
@@ -1203,6 +1443,13 @@ extension type AudioBufferSourceOptions._(JSObject _) implements JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AudioDestinationNode).
 extension type AudioDestinationNode._(JSObject _)
     implements AudioNode, JSObject {
+  /// The `maxchannelCount` property of the [AudioDestinationNode] interface is
+  /// an `unsigned long` defining the maximum amount of channels that the
+  /// physical device can handle.
+  ///
+  /// The [AudioNode.channelCount] property can be set between 0 and this value
+  /// (both included). If `maxChannelCount` is `0`, like in
+  /// [OfflineAudioContext], the channel count cannot be changed.
   external int get maxChannelCount;
 }
 
@@ -1265,14 +1512,77 @@ extension type AudioListener._(JSObject _) implements JSObject {
     num yUp,
     num zUp,
   );
+
+  /// The `positionX` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the x position of the listener in 3D cartesian
+  /// space.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get positionX;
+
+  /// The `positionY` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the y position of the listener in 3D cartesian
+  /// space.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get positionY;
+
+  /// The `positionZ` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the z position of the listener in 3D cartesian
+  /// space.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get positionZ;
+
+  /// The `forwardX` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the x value of the direction vector defining the
+  /// forward direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get forwardX;
+
+  /// The `forwardY` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the y value of the direction vector defining the
+  /// forward direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get forwardY;
+
+  /// The `forwardZ` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the z value of the direction vector defining the
+  /// forward direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get forwardZ;
+
+  /// The `upX` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the x value of the direction vector defining the
+  /// up direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get upX;
+
+  /// The `upY` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the y value of the direction vector defining the
+  /// up direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get upY;
+
+  /// The `upZ` read-only property of the [AudioListener] interface is an
+  /// [AudioParam] representing the z value of the direction vector defining the
+  /// up direction the listener is pointing in.
+  ///
+  /// > **Note:** The parameter is _a-rate_ when used with a [PannerNode] whose
+  /// > [PannerNode.panningModel] is set to equalpower, or _k-rate_ otherwise.
   external AudioParam get upZ;
 }
 
@@ -1299,8 +1609,31 @@ extension type AudioProcessingEvent._(JSObject _) implements Event, JSObject {
     AudioProcessingEventInit eventInitDict,
   );
 
+  /// The **`playbackTime`** read-only property of the [AudioProcessingEvent]
+  /// interface represents the time when the audio will be played. It is in the
+  /// same coordinate system as the time used by the [AudioContext].
   external num get playbackTime;
+
+  /// The **`inputBuffer`** read-only property of the [AudioProcessingEvent]
+  /// interface represents the input buffer of an audio processing event.
+  ///
+  /// The input buffer is represented by an [AudioBuffer] object, which contains
+  /// a collection of audio channels, each of which is an array of
+  /// floating-point values representing the audio signal waveform encoded as a
+  /// series of amplitudes. The number of channels and the length of each
+  /// channel are determined by the channel count and buffer size properties of
+  /// the `AudioBuffer`.
   external AudioBuffer get inputBuffer;
+
+  /// The **`outputBuffer`** read-only property of the [AudioProcessingEvent]
+  /// interface represents the output buffer of an audio processing event.
+  ///
+  /// The output buffer is represented by an [AudioBuffer] object, which
+  /// contains a collection of audio channels, each of which is an array of
+  /// floating-point values representing the audio signal waveform encoded as a
+  /// series of amplitudes. The number of channels and the length of each
+  /// channel are determined by the channel count and buffer size properties of
+  /// the `AudioBuffer`.
   external AudioBuffer get outputBuffer;
 }
 extension type AudioProcessingEventInit._(JSObject _)
@@ -1314,12 +1647,12 @@ extension type AudioProcessingEventInit._(JSObject _)
     required AudioBuffer outputBuffer,
   });
 
-  external set playbackTime(num value);
   external num get playbackTime;
-  external set inputBuffer(AudioBuffer value);
+  external set playbackTime(num value);
   external AudioBuffer get inputBuffer;
-  external set outputBuffer(AudioBuffer value);
+  external set inputBuffer(AudioBuffer value);
   external AudioBuffer get outputBuffer;
+  external set outputBuffer(AudioBuffer value);
 }
 
 /// The `BiquadFilterNode` interface represents a simple low-order filter, and
@@ -1377,11 +1710,48 @@ extension type BiquadFilterNode._(JSObject _) implements AudioNode, JSObject {
     JSFloat32Array magResponse,
     JSFloat32Array phaseResponse,
   );
-  external set type(BiquadFilterType value);
+
+  /// The `type` property of the [BiquadFilterNode] interface is a string (enum)
+  /// value defining the kind of filtering algorithm the node is implementing.
   external BiquadFilterType get type;
+  external set type(BiquadFilterType value);
+
+  /// The `frequency` property of the [BiquadFilterNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] — a double representing a frequency in the current filtering
+  /// algorithm measured in hertz (Hz).
+  ///
+  /// Its default value is `350`, with a nominal range of `10` to the
+  /// [Nyquist frequency](https://en.wikipedia.org/wiki/Nyquist_frequency) —
+  /// that is, half of the sample rate.
   external AudioParam get frequency;
+
+  /// The `detune` property of the [BiquadFilterNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing detuning of the frequency in
+  /// [cents](https://en.wikipedia.org/wiki/Cent_%28music%29).
   external AudioParam get detune;
+
+  /// The `Q` property of the [BiquadFilterNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam], a double representing a
+  /// [Q factor](https://en.wikipedia.org/wiki/Q_factor), or _quality factor_.
+  ///
+  /// It is a dimensionless value with a default value of `1` and a nominal
+  /// range of `0.0001` to `1000`.
   external AudioParam get Q;
+
+  /// The `gain` property of the [BiquadFilterNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] — a double representing the
+  /// [gain](https://en.wikipedia.org/wiki/Gain) used in the current filtering
+  /// algorithm.
+  ///
+  /// When its value is positive, it represents a real gain; when negative, it
+  /// represents an attenuation.
+  ///
+  /// It is expressed in dB, has a default value of `0`, and can take a value in
+  /// a nominal range of `-40` to `40`.
   external AudioParam get gain;
 }
 extension type BiquadFilterOptions._(JSObject _)
@@ -1397,16 +1767,16 @@ extension type BiquadFilterOptions._(JSObject _)
     num gain,
   });
 
-  external set type(BiquadFilterType value);
   external BiquadFilterType get type;
-  external set Q(num value);
+  external set type(BiquadFilterType value);
   external num get Q;
-  external set detune(num value);
+  external set Q(num value);
   external num get detune;
-  external set frequency(num value);
+  external set detune(num value);
   external num get frequency;
-  external set gain(num value);
+  external set frequency(num value);
   external num get gain;
+  external set gain(num value);
 }
 
 /// The `ChannelMergerNode` interface, often used in conjunction with its
@@ -1472,8 +1842,8 @@ extension type ChannelMergerOptions._(JSObject _)
     int numberOfInputs,
   });
 
-  external set numberOfInputs(int value);
   external int get numberOfInputs;
+  external set numberOfInputs(int value);
 }
 
 /// The `ChannelSplitterNode` interface, often used in conjunction with its
@@ -1543,8 +1913,8 @@ extension type ChannelSplitterOptions._(JSObject _)
     int numberOfOutputs,
   });
 
-  external set numberOfOutputs(int value);
   external int get numberOfOutputs;
+  external set numberOfOutputs(int value);
 }
 
 /// The `ConstantSourceNode` interface—part of the Web Audio API—represents an
@@ -1583,13 +1953,27 @@ extension type ConstantSourceNode._(JSObject _)
     ConstantSourceOptions options,
   ]);
 
+  /// The read-only `offset` property of the [ConstantSourceNode]
+  /// interface returns a [AudioParam] object indicating the numeric
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// value which is always returned
+  /// by the source when asked for the next sample.
+  ///
+  /// > **Note:** While the `AudioParam` named `offset` is read-only, the
+  /// > `value` property within is not. So you can change the value of
+  /// > `offset` by setting the value of
+  /// > `ConstantSourceNode.offset.value`:
+  /// >
+  /// > ```js
+  /// > myConstantSourceNode.offset.value = newValue;
+  /// > ```
   external AudioParam get offset;
 }
 extension type ConstantSourceOptions._(JSObject _) implements JSObject {
   external factory ConstantSourceOptions({num offset});
 
-  external set offset(num value);
   external num get offset;
+  external set offset(num value);
 }
 
 /// The `ConvolverNode` interface is an [AudioNode] that performs a Linear
@@ -1635,10 +2019,40 @@ extension type ConvolverNode._(JSObject _) implements AudioNode, JSObject {
     ConvolverOptions options,
   ]);
 
-  external set buffer(AudioBuffer? value);
+  /// The **`buffer`** property of the [ConvolverNode] interface represents a
+  /// mono, stereo, or 4-channel [AudioBuffer] containing the (possibly
+  /// multichannel) impulse response used by the `ConvolverNode` to create the
+  /// reverb effect.
+  ///
+  /// This is normally a simple recording of as-close-to-an-impulse as can be
+  /// found in the space you want to model. For example, if you want to model
+  /// the reverb in your bathroom, you might set up a microphone near the door
+  /// to record the sound of a balloon pop or synthesized impulse from the sink.
+  /// That audio recording could then be used as the buffer.
+  ///
+  /// This audio buffer must have the same sample-rate as the `AudioContext` or
+  /// an exception will be thrown. At the time when this attribute is set, the
+  /// buffer and the state of the attribute will be used to configure the
+  /// `ConvolverNode` with this impulse response having the given normalization.
+  /// The initial value of this attribute is `null`.
   external AudioBuffer? get buffer;
-  external set normalize(bool value);
+  external set buffer(AudioBuffer? value);
+
+  /// The `normalize` property of the [ConvolverNode] interface
+  /// is a boolean that controls whether the impulse response from the buffer
+  /// will be
+  /// scaled by an equal-power normalization when the `buffer` attribute is set,
+  /// or not.
+  ///
+  /// Its default value is `true` in order to achieve a more uniform output
+  /// level from the convolver, when loaded with diverse impulse responses. If
+  /// normalize is
+  /// set to `false`, then the convolution will be rendered with no
+  /// pre-processing/scaling of the impulse response. Changes to this value do
+  /// not take
+  /// effect until the next time the `buffer` attribute is set.
   external bool get normalize;
+  external set normalize(bool value);
 }
 extension type ConvolverOptions._(JSObject _)
     implements AudioNodeOptions, JSObject {
@@ -1650,10 +2064,10 @@ extension type ConvolverOptions._(JSObject _)
     bool disableNormalization,
   });
 
-  external set buffer(AudioBuffer? value);
   external AudioBuffer? get buffer;
-  external set disableNormalization(bool value);
+  external set buffer(AudioBuffer? value);
   external bool get disableNormalization;
+  external set disableNormalization(bool value);
 }
 
 /// The **`DelayNode`** interface represents a
@@ -1706,6 +2120,16 @@ extension type DelayNode._(JSObject _) implements AudioNode, JSObject {
     DelayOptions options,
   ]);
 
+  /// The `delayTime` property of the [DelayNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing the amount of delay to apply.
+  ///
+  /// `delayTime` is expressed in seconds, its minimal value is `0`, and its
+  /// maximum value is defined by the `maxDelayTime` argument of the
+  /// [BaseAudioContext.createDelay] method that created it.
+  ///
+  /// > **Note:** Though the [AudioParam] returned is read-only, the value it
+  /// > represents is not.
   external AudioParam get delayTime;
 }
 extension type DelayOptions._(JSObject _)
@@ -1718,10 +2142,10 @@ extension type DelayOptions._(JSObject _)
     num delayTime,
   });
 
-  external set maxDelayTime(num value);
   external num get maxDelayTime;
-  external set delayTime(num value);
+  external set maxDelayTime(num value);
   external num get delayTime;
+  external set delayTime(num value);
 }
 
 /// The `DynamicsCompressorNode` interface provides a compression effect, which
@@ -1767,11 +2191,69 @@ extension type DynamicsCompressorNode._(JSObject _)
     DynamicsCompressorOptions options,
   ]);
 
+  /// The `threshold` property of the [DynamicsCompressorNode] interface is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] representing the decibel value above which the compression
+  /// will start taking effect.
+  ///
+  /// The `threshold` property's default value is `-24` and it can be set
+  /// between `-100` and `0`.
+  ///
+  /// ![The threshold attribute has no effect on signals lowers than its value,
+  /// but induce volume reduction on signal stronger than its
+  /// value.](webaudiothreshold.png)
   external AudioParam get threshold;
+
+  /// The `knee` property of the [DynamicsCompressorNode] interface is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] containing a decibel value representing the range above the
+  /// threshold where the curve smoothly transitions to the compressed portion.
+  ///
+  /// The `knee` property's default value is `30` and it can be set between `0`
+  /// and `40`.
+  ///
+  /// ![Describes the effect of a knee, showing two curves one for a hard knee,
+  /// the other for a soft knee.](webaudioknee.png)
   external AudioParam get knee;
+
+  /// The `ratio` property of the [DynamicsCompressorNode] interface Is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] representing the amount of change, in dB, needed in the input
+  /// for a 1 dB change in the output.
+  ///
+  /// The `ratio` property's default value is `12` and it can be set between `1`
+  /// and `20`.
+  ///
+  /// ![Describes the effect of different ratio on the output signal](webaudioratio.png)
   external AudioParam get ratio;
+
+  /// The **`reduction`** read-only property of the [DynamicsCompressorNode]
+  /// interface is a float representing the amount of gain reduction currently
+  /// applied by the compressor to the signal.
+  ///
+  /// Intended for metering purposes, it returns a value in dB, or `0` (no gain
+  /// reduction) if no signal is fed into the `DynamicsCompressorNode`. The
+  /// range of this value is between `-20` and `0` (in dB).
   external num get reduction;
+
+  /// The `attack` property of the [DynamicsCompressorNode] interface is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] representing the amount of time, in seconds, required to
+  /// reduce the gain by 10 dB. It defines how quickly the signal is adapted
+  /// when its volume is increased.
+  ///
+  /// The `attack` property's default value is `0.003` and it can be set between
+  /// `0` and `1`.
   external AudioParam get attack;
+
+  /// The `release` property of the [DynamicsCompressorNode] interface Is a
+  /// [k-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#k-rate)
+  /// [AudioParam] representing the amount of time, in seconds, required to
+  /// increase the gain by 10 dB. It defines how quick the signal is adapted
+  /// when its volume is reduced.
+  ///
+  /// The `release` property's default value is `0.25` and it can be set between
+  /// `0` and `1`.
   external AudioParam get release;
 }
 extension type DynamicsCompressorOptions._(JSObject _)
@@ -1787,16 +2269,16 @@ extension type DynamicsCompressorOptions._(JSObject _)
     num threshold,
   });
 
-  external set attack(num value);
   external num get attack;
-  external set knee(num value);
+  external set attack(num value);
   external num get knee;
-  external set ratio(num value);
+  external set knee(num value);
   external num get ratio;
-  external set release(num value);
+  external set ratio(num value);
   external num get release;
-  external set threshold(num value);
+  external set release(num value);
   external num get threshold;
+  external set threshold(num value);
 }
 
 /// The `GainNode` interface represents a change in volume. It is an [AudioNode]
@@ -1847,6 +2329,9 @@ extension type GainNode._(JSObject _) implements AudioNode, JSObject {
     GainOptions options,
   ]);
 
+  /// The `gain` property of the [GainNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing the amount of gain to apply.
   external AudioParam get gain;
 }
 extension type GainOptions._(JSObject _) implements AudioNodeOptions, JSObject {
@@ -1857,8 +2342,8 @@ extension type GainOptions._(JSObject _) implements AudioNodeOptions, JSObject {
     num gain,
   });
 
-  external set gain(num value);
   external num get gain;
+  external set gain(num value);
 }
 
 /// The **`IIRFilterNode`** interface of the
@@ -1950,10 +2435,10 @@ extension type IIRFilterOptions._(JSObject _)
     required JSArray<JSNumber> feedback,
   });
 
-  external set feedforward(JSArray<JSNumber> value);
   external JSArray<JSNumber> get feedforward;
-  external set feedback(JSArray<JSNumber> value);
+  external set feedforward(JSArray<JSNumber> value);
   external JSArray<JSNumber> get feedback;
+  external set feedback(JSArray<JSNumber> value);
 }
 
 /// The `MediaElementAudioSourceNode` interface represents an audio source
@@ -1998,6 +2483,14 @@ extension type MediaElementAudioSourceNode._(JSObject _)
     MediaElementAudioSourceOptions options,
   );
 
+  /// The [MediaElementAudioSourceNode] interface's
+  /// read-only **`mediaElement`** property indicates the
+  /// [HTMLMediaElement] that contains the audio track from which the node is
+  /// receiving audio.
+  ///
+  /// This stream was specified when the node was first created,
+  /// either using the [MediaElementAudioSourceNode.MediaElementAudioSourceNode]
+  /// constructor or the [AudioContext.createMediaElementSource] method.
   external HTMLMediaElement get mediaElement;
 }
 extension type MediaElementAudioSourceOptions._(JSObject _)
@@ -2005,8 +2498,8 @@ extension type MediaElementAudioSourceOptions._(JSObject _)
   external factory MediaElementAudioSourceOptions(
       {required HTMLMediaElement mediaElement});
 
-  external set mediaElement(HTMLMediaElement value);
   external HTMLMediaElement get mediaElement;
+  external set mediaElement(HTMLMediaElement value);
 }
 
 /// The `MediaStreamAudioDestinationNode` interface represents an audio
@@ -2054,6 +2547,13 @@ extension type MediaStreamAudioDestinationNode._(JSObject _)
     AudioNodeOptions options,
   ]);
 
+  /// The `stream` property of the [AudioContext] interface represents a
+  /// [MediaStream] containing a single audio [MediaStreamTrack] with the same
+  /// number of channels as the node itself.
+  ///
+  /// You can use this property to get a stream out of the audio graph and feed
+  /// it into another construct, such as a
+  /// [Media Recorder](https://developer.mozilla.org/en-US/docs/Web/API/MediaStream_Recording_API).
   external MediaStream get stream;
 }
 
@@ -2108,14 +2608,22 @@ extension type MediaStreamAudioSourceNode._(JSObject _)
     MediaStreamAudioSourceOptions options,
   );
 
+  /// The [MediaStreamAudioSourceNode] interface's
+  /// read-only **`mediaStream`** property indicates the
+  /// [MediaStream] that contains the audio track from which the node is
+  /// receiving audio.
+  ///
+  /// This stream was specified when the node was first created,
+  /// either using the [MediaStreamAudioSourceNode.MediaStreamAudioSourceNode]
+  /// constructor or the [AudioContext.createMediaStreamSource] method.
   external MediaStream get mediaStream;
 }
 extension type MediaStreamAudioSourceOptions._(JSObject _) implements JSObject {
   external factory MediaStreamAudioSourceOptions(
       {required MediaStream mediaStream});
 
-  external set mediaStream(MediaStream value);
   external MediaStream get mediaStream;
+  external set mediaStream(MediaStream value);
 }
 
 /// The **`MediaStreamTrackAudioSourceNode`** interface is a type of [AudioNode]
@@ -2173,8 +2681,8 @@ extension type MediaStreamTrackAudioSourceOptions._(JSObject _)
   external factory MediaStreamTrackAudioSourceOptions(
       {required MediaStreamTrack mediaStreamTrack});
 
-  external set mediaStreamTrack(MediaStreamTrack value);
   external MediaStreamTrack get mediaStreamTrack;
+  external set mediaStreamTrack(MediaStreamTrack value);
 }
 
 /// The **`OscillatorNode`** interface represents a periodic waveform, such as a
@@ -2224,9 +2732,32 @@ extension type OscillatorNode._(JSObject _)
   /// output, when
   /// [OscillatorNode.type] is `custom`.
   external void setPeriodicWave(PeriodicWave periodicWave);
-  external set type(OscillatorType value);
+
+  /// The **`type`** property of the [OscillatorNode] interface specifies what
+  /// shape of [waveform](https://en.wikipedia.org/wiki/Waveform) the
+  /// oscillator will output. There are several common waveforms available, as
+  /// well as an
+  /// option to specify a custom waveform shape. The shape of the waveform will
+  /// affect the
+  /// tone that is produced.
   external OscillatorType get type;
+  external set type(OscillatorType value);
+
+  /// The **`frequency`** property of the [OscillatorNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing the frequency of oscillation in hertz.
+  ///
+  /// > **Note:** though the `AudioParam` returned is read-only, the value it
+  /// > represents is not.
   external AudioParam get frequency;
+
+  /// The `detune` property of the [OscillatorNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing detuning of oscillation in
+  /// [cents](https://en.wikipedia.org/wiki/Cent_%28music%29).
+  ///
+  /// > **Note:** though the `AudioParam` returned is read-only, the value it
+  /// > represents is not.
   external AudioParam get detune;
 }
 extension type OscillatorOptions._(JSObject _)
@@ -2241,14 +2772,14 @@ extension type OscillatorOptions._(JSObject _)
     PeriodicWave periodicWave,
   });
 
-  external set type(OscillatorType value);
   external OscillatorType get type;
-  external set frequency(num value);
+  external set type(OscillatorType value);
   external num get frequency;
-  external set detune(num value);
+  external set frequency(num value);
   external num get detune;
-  external set periodicWave(PeriodicWave value);
+  external set detune(num value);
   external PeriodicWave get periodicWave;
+  external set periodicWave(PeriodicWave value);
 }
 
 /// The `PannerNode` interface defines an audio-processing object that
@@ -2346,28 +2877,279 @@ extension type PannerNode._(JSObject _) implements AudioNode, JSObject {
     num y,
     num z,
   );
-  external set panningModel(PanningModelType value);
+
+  /// The `panningModel` property of the [PannerNode] interface is an enumerated
+  /// value determining which spatialization algorithm to use to position the
+  /// audio in 3D space.
+  ///
+  /// The possible values are:
+  ///
+  /// - `equalpower`: Represents the equal-power panning algorithm, generally
+  ///   regarded as simple and efficient. `equalpower` is the default value.
+  /// - `HRTF`: Renders a stereo output of higher quality than `equalpower` — it
+  ///   uses a convolution with measured impulse responses from human subjects.
   external PanningModelType get panningModel;
+  external set panningModel(PanningModelType value);
+
+  /// The **`positionX`** property of the [PannerNode] interface specifies the X
+  /// coordinate of the audio source's position in 3D Cartesian
+  /// coordinates, corresponding to the _horizontal_ axis (left-right).
+  ///
+  /// The complete vector is defined by the position of the audio source, given
+  /// as
+  /// ([PannerNode.positionX], [PannerNode.positionY],
+  /// [PannerNode.positionZ]), and the orientation
+  /// of the audio source (that is, the direction in which it's facing), given
+  /// as
+  /// ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get positionX;
+
+  /// The **`positionY`** property of the [PannerNode] interface specifies the Y
+  /// coordinate of the audio source's position in 3D Cartesian
+  /// coordinates, corresponding to the _vertical_ axis (top-bottom). The
+  /// complete
+  /// vector is defined by the position of the audio source, given as
+  /// ([PannerNode.positionX], [PannerNode.positionY], [PannerNode.positionZ]),
+  /// and the orientation
+  /// of the audio source (that is, the direction in which it's facing), given
+  /// as
+  /// ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get positionY;
+
+  /// The **`positionZ`** property of the [PannerNode] interface specifies the Z
+  /// coordinate of the audio source's position in 3D Cartesian
+  /// coordinates, corresponding to the _depth_ axis (behind-in front of the
+  /// listener). The complete vector is defined by the position of the audio
+  /// source, given
+  /// as ([PannerNode.positionX],
+  /// [PannerNode.positionY],
+  /// [PannerNode.positionZ]),
+  /// and the orientation of the audio source (that is, the direction in
+  /// which it's facing), given as ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get positionZ;
+
+  /// The **`orientationX`** property of the [PannerNode] interface indicates
+  /// the X (horizontal) component of the
+  /// direction in which the audio source is facing, in a 3D Cartesian
+  /// coordinate space.
+  ///
+  /// The complete vector is defined by the position of the audio source, given
+  /// as
+  /// ([PannerNode.positionX], [PannerNode.positionY],
+  /// [PannerNode.positionZ]), and the orientation
+  /// of the audio source (that is, the direction in which it's facing), given
+  /// as
+  /// ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get orientationX;
+
+  /// The **`orientationY`** property of the [PannerNode] interface
+  /// indicates the Y (vertical) component of the direction the audio source is
+  /// facing, in 3D Cartesian coordinate space.
+  ///
+  /// The complete vector is defined by the position of the audio source, given
+  /// as
+  /// ([PannerNode.positionX], [PannerNode.positionY],
+  /// [PannerNode.positionZ]), and the orientation
+  /// of the audio source (that is, the direction in which it's facing), given
+  /// as
+  /// ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get orientationY;
+
+  /// The **`orientationZ`** property of the [PannerNode] interface
+  /// indicates the Z (depth) component of the direction the audio source is
+  /// facing, in 3D Cartesian coordinate space.
+  ///
+  /// The complete vector is defined by the position of the audio source, given
+  /// as
+  /// ([PannerNode.positionX], [PannerNode.positionY],
+  /// [PannerNode.positionZ]), and the orientation
+  /// of the audio source (that is, the direction in which it's facing), given
+  /// as
+  /// ([PannerNode.orientationX],
+  /// [PannerNode.orientationY],
+  /// [PannerNode.orientationZ]).
+  ///
+  /// Depending on the directionality of the sound (as specified using the
+  /// attributes
+  /// [PannerNode.coneInnerAngle],
+  /// [PannerNode.coneOuterAngle], and
+  /// [PannerNode.coneOuterGain]), the orientation of the
+  /// sound may alter the perceived volume of the sound as it's being played. If
+  /// the sound
+  /// is pointing toward the listener, it will be louder than if the sound is
+  /// pointed away
+  /// from the listener.
+  ///
+  /// The [AudioParam] contained by this property is read only; however, you
+  /// can still change the value of the parameter by assigning a new value to
+  /// its
+  /// [AudioParam.value] property.
   external AudioParam get orientationZ;
-  external set distanceModel(DistanceModelType value);
+
+  /// The `distanceModel` property of the [PannerNode] interface is an
+  /// enumerated value determining which algorithm to use to reduce the volume
+  /// of the audio source as it moves away from the listener.
+  ///
+  /// The possible values are:
+  ///
+  /// - `linear`: A _linear distance model_ calculating the gain induced by the
+  ///   distance according to:
+  /// `1 - rolloffFactor * (distance - refDistance) / (maxDistance -
+  /// refDistance)`
+  /// - `inverse`: An _inverse distance model_ calculating the gain induced by
+  ///   the distance according to:
+  /// `refDistance / (refDistance + rolloffFactor * (Math.max(distance,
+  /// refDistance) - refDistance))`
+  /// - `exponential`: An _exponential distance model_ calculating the gain
+  ///   induced by the distance according to:
+  /// `pow((Math.max(distance, refDistance) / refDistance, -rolloffFactor)`.
+  ///
+  /// `inverse` is the default value of `distanceModel`.
   external DistanceModelType get distanceModel;
-  external set refDistance(num value);
+  external set distanceModel(DistanceModelType value);
+
+  /// The `refDistance` property of the [PannerNode] interface is a double value
+  /// representing the reference distance for reducing volume as the audio
+  /// source moves further from the listener – i.e. the distance at which the
+  /// volume reduction starts taking effect. This value is used by all distance
+  /// models.
+  ///
+  /// The `refDistance` property's default value is `1`.
   external num get refDistance;
-  external set maxDistance(num value);
+  external set refDistance(num value);
+
+  /// The `maxDistance` property of the [PannerNode] interface is a double value
+  /// representing the maximum distance between the audio source and the
+  /// listener, after which the volume is not reduced any further. This value is
+  /// used only by the `linear` distance model.
+  ///
+  /// The `maxDistance` property's default value is `10000`.
   external num get maxDistance;
-  external set rolloffFactor(num value);
+  external set maxDistance(num value);
+
+  /// The `rolloffFactor` property of the [PannerNode] interface is a double
+  /// value describing how quickly the volume is reduced as the source moves
+  /// away from the listener. This value is used by all distance models. The
+  /// `rolloffFactor` property's default value is `1`.
   external num get rolloffFactor;
-  external set coneInnerAngle(num value);
+  external set rolloffFactor(num value);
+
+  /// The `coneInnerAngle` property of the [PannerNode] interface is a double
+  /// value describing the angle, in degrees, of a cone inside of which there
+  /// will be no volume reduction.
+  ///
+  /// The `coneInnerAngle` property's default value is `360`, suitable for a
+  /// non-directional source.
   external num get coneInnerAngle;
-  external set coneOuterAngle(num value);
+  external set coneInnerAngle(num value);
+
+  /// The `coneOuterAngle` property of the [PannerNode] interface is a double
+  /// value describing the angle, in degrees, of a cone outside of which the
+  /// volume will be reduced by a constant value, defined by the
+  /// [PannerNode.coneOuterGain] property.
+  ///
+  /// The `coneOuterAngle` property's default value is `0`.
   external num get coneOuterAngle;
-  external set coneOuterGain(num value);
+  external set coneOuterAngle(num value);
+
+  /// The `coneOuterGain` property of the [PannerNode] interface is a double
+  /// value, describing the amount of volume reduction outside the cone, defined
+  /// by the [PannerNode.coneOuterAngle] attribute.
+  ///
+  /// The `coneOuterGain` property's default value is `0`, meaning that no sound
+  /// can be heard outside the cone.
   external num get coneOuterGain;
+  external set coneOuterGain(num value);
 }
 extension type PannerOptions._(JSObject _)
     implements AudioNodeOptions, JSObject {
@@ -2391,34 +3173,34 @@ extension type PannerOptions._(JSObject _)
     num coneOuterGain,
   });
 
-  external set panningModel(PanningModelType value);
   external PanningModelType get panningModel;
-  external set distanceModel(DistanceModelType value);
+  external set panningModel(PanningModelType value);
   external DistanceModelType get distanceModel;
-  external set positionX(num value);
+  external set distanceModel(DistanceModelType value);
   external num get positionX;
-  external set positionY(num value);
+  external set positionX(num value);
   external num get positionY;
-  external set positionZ(num value);
+  external set positionY(num value);
   external num get positionZ;
-  external set orientationX(num value);
+  external set positionZ(num value);
   external num get orientationX;
-  external set orientationY(num value);
+  external set orientationX(num value);
   external num get orientationY;
-  external set orientationZ(num value);
+  external set orientationY(num value);
   external num get orientationZ;
-  external set refDistance(num value);
+  external set orientationZ(num value);
   external num get refDistance;
-  external set maxDistance(num value);
+  external set refDistance(num value);
   external num get maxDistance;
-  external set rolloffFactor(num value);
+  external set maxDistance(num value);
   external num get rolloffFactor;
-  external set coneInnerAngle(num value);
+  external set rolloffFactor(num value);
   external num get coneInnerAngle;
-  external set coneOuterAngle(num value);
+  external set coneInnerAngle(num value);
   external num get coneOuterAngle;
-  external set coneOuterGain(num value);
+  external set coneOuterAngle(num value);
   external num get coneOuterGain;
+  external set coneOuterGain(num value);
 }
 
 /// The **`PeriodicWave`** interface defines a periodic waveform that can be
@@ -2442,8 +3224,8 @@ extension type PeriodicWave._(JSObject _) implements JSObject {
 extension type PeriodicWaveConstraints._(JSObject _) implements JSObject {
   external factory PeriodicWaveConstraints({bool disableNormalization});
 
-  external set disableNormalization(bool value);
   external bool get disableNormalization;
+  external set disableNormalization(bool value);
 }
 extension type PeriodicWaveOptions._(JSObject _)
     implements PeriodicWaveConstraints, JSObject {
@@ -2453,10 +3235,10 @@ extension type PeriodicWaveOptions._(JSObject _)
     JSArray<JSNumber> imag,
   });
 
-  external set real(JSArray<JSNumber> value);
   external JSArray<JSNumber> get real;
-  external set imag(JSArray<JSNumber> value);
+  external set real(JSArray<JSNumber> value);
   external JSArray<JSNumber> get imag;
+  external set imag(JSArray<JSNumber> value);
 }
 
 /// The `ScriptProcessorNode` interface allows the generation, processing, or
@@ -2520,8 +3302,17 @@ extension type PeriodicWaveOptions._(JSObject _)
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/ScriptProcessorNode).
 extension type ScriptProcessorNode._(JSObject _)
     implements AudioNode, JSObject {
-  external set onaudioprocess(EventHandler value);
   external EventHandler get onaudioprocess;
+  external set onaudioprocess(EventHandler value);
+
+  /// The `bufferSize` property of the [ScriptProcessorNode] interface returns
+  /// an integer representing both the input and output buffer size, in
+  /// sample-frames. Its value can be a power of 2 value in the range `256` –
+  /// `16384`.
+  ///
+  /// > **Note:** This feature was replaced by
+  /// > [AudioWorklets](https://developer.mozilla.org/en-US/docs/Web/API/AudioWorklet)
+  /// > and the [AudioWorkletNode] interface.
   external int get bufferSize;
 }
 
@@ -2576,6 +3367,10 @@ extension type StereoPannerNode._(JSObject _) implements AudioNode, JSObject {
     StereoPannerOptions options,
   ]);
 
+  /// The `pan` property of the [StereoPannerNode] interface is an
+  /// [a-rate](https://developer.mozilla.org/en-US/docs/Web/API/AudioParam#a-rate)
+  /// [AudioParam] representing the amount of panning to apply. The value can
+  /// range between `-1` (full left pan) and `1` (full right pan).
   external AudioParam get pan;
 }
 extension type StereoPannerOptions._(JSObject _)
@@ -2587,8 +3382,8 @@ extension type StereoPannerOptions._(JSObject _)
     num pan,
   });
 
-  external set pan(num value);
   external num get pan;
+  external set pan(num value);
 }
 
 /// The **`WaveShaperNode`** interface represents a non-linear distorter.
@@ -2634,10 +3429,40 @@ extension type WaveShaperNode._(JSObject _) implements AudioNode, JSObject {
     WaveShaperOptions options,
   ]);
 
-  external set curve(JSFloat32Array? value);
+  /// The `curve` property of the [WaveShaperNode] interface is a `Float32Array`
+  /// of numbers describing the distortion to apply.
+  ///
+  /// The mid-element of the array is applied to any signal value of `0`, the
+  /// first one to signal values of `-1`, and the last to signal values of `1`;
+  /// values lower than `-1` or greater than `1` are treated like `-1` or `1`
+  /// respectively.
+  ///
+  /// If necessary, intermediate values of the distortion curve are linearly
+  /// interpolated.
+  ///
+  /// > **Note:** The array can be a `null` value: in that case, no distortion
+  /// > is applied to the input signal.
   external JSFloat32Array? get curve;
-  external set oversample(OverSampleType value);
+  external set curve(JSFloat32Array? value);
+
+  /// The `oversample` property of the [WaveShaperNode] interface is an
+  /// enumerated value indicating if oversampling must be used. Oversampling is
+  /// a technique for creating more samples (up-sampling) before applying a
+  /// distortion effect to the audio signal.
+  ///
+  /// Once applied, the number of samples is reduced to its initial numbers.
+  /// This leads to better results by avoiding some aliasing, but comes at the
+  /// expense of a lower precision shaping curve.
+  ///
+  /// The possible `oversample` values are:
+  ///
+  /// | Value    | Effect                                                                 |
+  /// | -------- | ---------------------------------------------------------------------- |
+  /// | `'none'` | Do not perform any oversampling.                                       |
+  /// | `'2x'`   | Double the amount of samples before applying the shaping curve.        |
+  /// | `'4x'`   | Multiply by 4 the amount of samples before applying the shaping curve. |
   external OverSampleType get oversample;
+  external set oversample(OverSampleType value);
 }
 extension type WaveShaperOptions._(JSObject _)
     implements AudioNodeOptions, JSObject {
@@ -2649,10 +3474,10 @@ extension type WaveShaperOptions._(JSObject _)
     OverSampleType oversample,
   });
 
-  external set curve(JSArray<JSNumber> value);
   external JSArray<JSNumber> get curve;
-  external set oversample(OverSampleType value);
+  external set curve(JSArray<JSNumber> value);
   external OverSampleType get oversample;
+  external set oversample(OverSampleType value);
 }
 
 /// The **`AudioWorklet`** interface of the
@@ -2702,8 +3527,23 @@ extension type AudioWorkletGlobalScope._(JSObject _)
     String name,
     AudioWorkletProcessorConstructor processorCtor,
   );
+
+  /// The read-only **`currentFrame`** property of the [AudioWorkletGlobalScope]
+  /// interface returns an integer that represents the ever-increasing current
+  /// sample-frame of the audio block being processed. It is incremented by 128
+  /// (the size of a render quantum) after the processing of each audio block.
   external int get currentFrame;
+
+  /// The read-only **`currentTime`** property of the [AudioWorkletGlobalScope]
+  /// interface returns a double that represents the ever-increasing context
+  /// time of the audio block being processed. It is equal to the
+  /// [BaseAudioContext.currentTime] property of the [BaseAudioContext] the
+  /// worklet belongs to.
   external num get currentTime;
+
+  /// The read-only **`sampleRate`** property of the [AudioWorkletGlobalScope]
+  /// interface returns a float that represents the sample rate of the
+  /// associated [BaseAudioContext] the worklet belongs to.
   external num get sampleRate;
   external int get renderQuantumSize;
   external MessagePort get port;
@@ -2747,10 +3587,26 @@ extension type AudioWorkletNode._(JSObject _) implements AudioNode, JSObject {
     AudioWorkletNodeOptions options,
   ]);
 
+  /// The read-only **`parameters`** property of the
+  /// [AudioWorkletNode] interface returns the associated
+  /// [AudioParamMap] — that is, a `Map`-like collection of
+  /// [AudioParam] objects. They are instantiated during creation of the
+  /// underlying [AudioWorkletProcessor] according to its
+  /// [AudioWorkletProcessor.parameterDescriptors] static
+  /// getter.
   external AudioParamMap get parameters;
+
+  /// The read-only **`port`** property of the
+  /// [AudioWorkletNode] interface returns the associated
+  /// [MessagePort]. It can be used to communicate between the node and its
+  /// associated [AudioWorkletProcessor].
+  ///
+  /// > **Note:** The port at the other end of the channel is
+  /// > available under the [AudioWorkletProcessor.port] property of the
+  /// > processor.
   external MessagePort get port;
-  external set onprocessorerror(EventHandler value);
   external EventHandler get onprocessorerror;
+  external set onprocessorerror(EventHandler value);
 }
 extension type AudioWorkletNodeOptions._(JSObject _)
     implements AudioNodeOptions, JSObject {
@@ -2765,16 +3621,16 @@ extension type AudioWorkletNodeOptions._(JSObject _)
     JSObject processorOptions,
   });
 
-  external set numberOfInputs(int value);
   external int get numberOfInputs;
-  external set numberOfOutputs(int value);
+  external set numberOfInputs(int value);
   external int get numberOfOutputs;
-  external set outputChannelCount(JSArray<JSNumber> value);
+  external set numberOfOutputs(int value);
   external JSArray<JSNumber> get outputChannelCount;
-  external set parameterData(JSObject value);
+  external set outputChannelCount(JSArray<JSNumber> value);
   external JSObject get parameterData;
-  external set processorOptions(JSObject value);
+  external set parameterData(JSObject value);
   external JSObject get processorOptions;
+  external set processorOptions(JSObject value);
 }
 
 /// The **`AudioWorkletProcessor`** interface of the
@@ -2790,6 +3646,13 @@ extension type AudioWorkletNodeOptions._(JSObject _)
 extension type AudioWorkletProcessor._(JSObject _) implements JSObject {
   external factory AudioWorkletProcessor();
 
+  /// The read-only **`port`** property of the
+  /// [AudioWorkletProcessor] interface returns the associated
+  /// [MessagePort]. It can be used to communicate between the processor and the
+  /// [AudioWorkletNode] to which it belongs.
+  ///
+  /// > **Note:** The port at the other end of the channel is
+  /// > available under the [AudioWorkletNode.port] property of the node.
   external MessagePort get port;
 }
 
@@ -2817,14 +3680,14 @@ extension type AudioParamDescriptor._(JSObject _) implements JSObject {
     AutomationRate automationRate,
   });
 
-  external set name(String value);
   external String get name;
-  external set defaultValue(num value);
+  external set name(String value);
   external num get defaultValue;
-  external set minValue(num value);
+  external set defaultValue(num value);
   external num get minValue;
-  external set maxValue(num value);
+  external set minValue(num value);
   external num get maxValue;
-  external set automationRate(AutomationRate value);
+  external set maxValue(num value);
   external AutomationRate get automationRate;
+  external set automationRate(AutomationRate value);
 }
diff --git a/lib/src/dom/webauthn.dart b/lib/src/dom/webauthn.dart
index 7fc068dc..05a74fb1 100644
--- a/lib/src/dom/webauthn.dart
+++ b/lib/src/dom/webauthn.dart
@@ -131,8 +131,58 @@ extension type PublicKeyCredential._(JSObject _)
   /// party server when registering or authenticating a user.
   /// It not intended to be called directly in web app code.
   external PublicKeyCredentialJSON toJSON();
+
+  /// The **`rawId`** read-only property of the
+  /// [PublicKeyCredential] interface is an `ArrayBuffer` object
+  /// containing the identifier of the credentials.
+  ///
+  /// The [PublicKeyCredential.id] property is a
+  /// [base64url encoded](https://developer.mozilla.org/en-US/docs/Glossary/Base64)
+  /// version of this identifier.
+  ///
+  /// > **Note:** This property may only be used in top-level contexts and will
+  /// > not be available in an `iframe` for example.
   external JSArrayBuffer get rawId;
+
+  /// The **`response`** read-only property of the
+  /// [PublicKeyCredential] interface is an [AuthenticatorResponse]
+  /// object which is sent from the authenticator to the user agent for the
+  /// creation/fetching
+  /// of credentials. The information contained in this response will be used by
+  /// the relying
+  /// party's server to verify the demand is legitimate.
+  ///
+  /// An `AuthenticatorResponse` is either:
+  ///
+  /// - an [AuthenticatorAttestationResponse] (when the
+  /// `PublicKeyCredential` is created via
+  /// [CredentialsContainer.create])
+  /// - an [AuthenticatorAssertionResponse] (when the
+  /// `PublicKeyCredential` is obtained via
+  /// [CredentialsContainer.get]).
+  ///
+  /// In order to validate the _creation_ of credentials, a relying party's
+  /// server
+  /// needs both:
+  ///
+  /// - this response
+  /// - the extensions of the client (given by
+  /// [PublicKeyCredential.getClientExtensionResults]) to validate the
+  /// demand.
+  ///
+  /// > **Note:** When validating the fetching of existing credentials, the
+  /// > whole `PublicKeyCredential` object and the client extensions are
+  /// > necessary
+  /// > for the relying party's server.
+  ///
+  /// > **Note:** This property may only be used in top-level contexts and will
+  /// > not be available in an `iframe` for example.
   external AuthenticatorResponse get response;
+
+  /// The **`authenticatorAttachment`** read-only property of the
+  /// [PublicKeyCredential] interface is a string that indicates the general
+  /// category of authenticator used during the associated
+  /// [CredentialsContainer.create] or [CredentialsContainer.get] call.
   external String? get authenticatorAttachment;
 }
 extension type RegistrationResponseJSON._(JSObject _) implements JSObject {
@@ -145,19 +195,19 @@ extension type RegistrationResponseJSON._(JSObject _) implements JSObject {
     required String type,
   });
 
-  external set id(Base64URLString value);
   external Base64URLString get id;
-  external set rawId(Base64URLString value);
+  external set id(Base64URLString value);
   external Base64URLString get rawId;
-  external set response(AuthenticatorAttestationResponseJSON value);
+  external set rawId(Base64URLString value);
   external AuthenticatorAttestationResponseJSON get response;
-  external set authenticatorAttachment(String value);
+  external set response(AuthenticatorAttestationResponseJSON value);
   external String get authenticatorAttachment;
+  external set authenticatorAttachment(String value);
+  external AuthenticationExtensionsClientOutputsJSON get clientExtensionResults;
   external set clientExtensionResults(
       AuthenticationExtensionsClientOutputsJSON value);
-  external AuthenticationExtensionsClientOutputsJSON get clientExtensionResults;
-  external set type(String value);
   external String get type;
+  external set type(String value);
 }
 extension type AuthenticatorAttestationResponseJSON._(JSObject _)
     implements JSObject {
@@ -170,18 +220,18 @@ extension type AuthenticatorAttestationResponseJSON._(JSObject _)
     required Base64URLString attestationObject,
   });
 
-  external set clientDataJSON(Base64URLString value);
   external Base64URLString get clientDataJSON;
-  external set authenticatorData(Base64URLString value);
+  external set clientDataJSON(Base64URLString value);
   external Base64URLString get authenticatorData;
-  external set transports(JSArray<JSString> value);
+  external set authenticatorData(Base64URLString value);
   external JSArray<JSString> get transports;
-  external set publicKey(Base64URLString value);
+  external set transports(JSArray<JSString> value);
   external Base64URLString get publicKey;
-  external set publicKeyAlgorithm(int value);
+  external set publicKey(Base64URLString value);
   external int get publicKeyAlgorithm;
-  external set attestationObject(Base64URLString value);
+  external set publicKeyAlgorithm(int value);
   external Base64URLString get attestationObject;
+  external set attestationObject(Base64URLString value);
 }
 extension type AuthenticationResponseJSON._(JSObject _) implements JSObject {
   external factory AuthenticationResponseJSON({
@@ -193,19 +243,19 @@ extension type AuthenticationResponseJSON._(JSObject _) implements JSObject {
     required String type,
   });
 
-  external set id(Base64URLString value);
   external Base64URLString get id;
-  external set rawId(Base64URLString value);
+  external set id(Base64URLString value);
   external Base64URLString get rawId;
-  external set response(AuthenticatorAssertionResponseJSON value);
+  external set rawId(Base64URLString value);
   external AuthenticatorAssertionResponseJSON get response;
-  external set authenticatorAttachment(String value);
+  external set response(AuthenticatorAssertionResponseJSON value);
   external String get authenticatorAttachment;
+  external set authenticatorAttachment(String value);
+  external AuthenticationExtensionsClientOutputsJSON get clientExtensionResults;
   external set clientExtensionResults(
       AuthenticationExtensionsClientOutputsJSON value);
-  external AuthenticationExtensionsClientOutputsJSON get clientExtensionResults;
-  external set type(String value);
   external String get type;
+  external set type(String value);
 }
 extension type AuthenticatorAssertionResponseJSON._(JSObject _)
     implements JSObject {
@@ -216,14 +266,14 @@ extension type AuthenticatorAssertionResponseJSON._(JSObject _)
     Base64URLString userHandle,
   });
 
-  external set clientDataJSON(Base64URLString value);
   external Base64URLString get clientDataJSON;
-  external set authenticatorData(Base64URLString value);
+  external set clientDataJSON(Base64URLString value);
   external Base64URLString get authenticatorData;
-  external set signature(Base64URLString value);
+  external set authenticatorData(Base64URLString value);
   external Base64URLString get signature;
-  external set userHandle(Base64URLString value);
+  external set signature(Base64URLString value);
   external Base64URLString get userHandle;
+  external set userHandle(Base64URLString value);
 }
 extension type AuthenticationExtensionsClientOutputsJSON._(JSObject _)
     implements JSObject {
@@ -245,29 +295,29 @@ extension type PublicKeyCredentialCreationOptionsJSON._(JSObject _)
     AuthenticationExtensionsClientInputsJSON extensions,
   });
 
-  external set rp(PublicKeyCredentialRpEntity value);
   external PublicKeyCredentialRpEntity get rp;
-  external set user(PublicKeyCredentialUserEntityJSON value);
+  external set rp(PublicKeyCredentialRpEntity value);
   external PublicKeyCredentialUserEntityJSON get user;
-  external set challenge(Base64URLString value);
+  external set user(PublicKeyCredentialUserEntityJSON value);
   external Base64URLString get challenge;
-  external set pubKeyCredParams(JSArray<PublicKeyCredentialParameters> value);
+  external set challenge(Base64URLString value);
   external JSArray<PublicKeyCredentialParameters> get pubKeyCredParams;
-  external set timeout(int value);
+  external set pubKeyCredParams(JSArray<PublicKeyCredentialParameters> value);
   external int get timeout;
+  external set timeout(int value);
+  external JSArray<PublicKeyCredentialDescriptorJSON> get excludeCredentials;
   external set excludeCredentials(
       JSArray<PublicKeyCredentialDescriptorJSON> value);
-  external JSArray<PublicKeyCredentialDescriptorJSON> get excludeCredentials;
-  external set authenticatorSelection(AuthenticatorSelectionCriteria value);
   external AuthenticatorSelectionCriteria get authenticatorSelection;
-  external set hints(JSArray<JSString> value);
+  external set authenticatorSelection(AuthenticatorSelectionCriteria value);
   external JSArray<JSString> get hints;
-  external set attestation(String value);
+  external set hints(JSArray<JSString> value);
   external String get attestation;
-  external set attestationFormats(JSArray<JSString> value);
+  external set attestation(String value);
   external JSArray<JSString> get attestationFormats;
-  external set extensions(AuthenticationExtensionsClientInputsJSON value);
+  external set attestationFormats(JSArray<JSString> value);
   external AuthenticationExtensionsClientInputsJSON get extensions;
+  external set extensions(AuthenticationExtensionsClientInputsJSON value);
 }
 extension type PublicKeyCredentialUserEntityJSON._(JSObject _)
     implements JSObject {
@@ -277,12 +327,12 @@ extension type PublicKeyCredentialUserEntityJSON._(JSObject _)
     required String displayName,
   });
 
-  external set id(Base64URLString value);
   external Base64URLString get id;
-  external set name(String value);
+  external set id(Base64URLString value);
   external String get name;
-  external set displayName(String value);
+  external set name(String value);
   external String get displayName;
+  external set displayName(String value);
 }
 extension type PublicKeyCredentialDescriptorJSON._(JSObject _)
     implements JSObject {
@@ -292,12 +342,12 @@ extension type PublicKeyCredentialDescriptorJSON._(JSObject _)
     JSArray<JSString> transports,
   });
 
-  external set id(Base64URLString value);
   external Base64URLString get id;
-  external set type(String value);
+  external set id(Base64URLString value);
   external String get type;
-  external set transports(JSArray<JSString> value);
+  external set type(String value);
   external JSArray<JSString> get transports;
+  external set transports(JSArray<JSString> value);
 }
 extension type AuthenticationExtensionsClientInputsJSON._(JSObject _)
     implements JSObject {
@@ -315,21 +365,21 @@ extension type PublicKeyCredentialRequestOptionsJSON._(JSObject _)
     AuthenticationExtensionsClientInputsJSON extensions,
   });
 
-  external set challenge(Base64URLString value);
   external Base64URLString get challenge;
-  external set timeout(int value);
+  external set challenge(Base64URLString value);
   external int get timeout;
-  external set rpId(String value);
+  external set timeout(int value);
   external String get rpId;
+  external set rpId(String value);
+  external JSArray<PublicKeyCredentialDescriptorJSON> get allowCredentials;
   external set allowCredentials(
       JSArray<PublicKeyCredentialDescriptorJSON> value);
-  external JSArray<PublicKeyCredentialDescriptorJSON> get allowCredentials;
-  external set userVerification(String value);
   external String get userVerification;
-  external set hints(JSArray<JSString> value);
+  external set userVerification(String value);
   external JSArray<JSString> get hints;
-  external set extensions(AuthenticationExtensionsClientInputsJSON value);
+  external set hints(JSArray<JSString> value);
   external AuthenticationExtensionsClientInputsJSON get extensions;
+  external set extensions(AuthenticationExtensionsClientInputsJSON value);
 }
 
 /// The **`AuthenticatorResponse`** interface of the
@@ -344,6 +394,15 @@ extension type PublicKeyCredentialRequestOptionsJSON._(JSObject _)
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AuthenticatorResponse).
 extension type AuthenticatorResponse._(JSObject _) implements JSObject {
+  /// The **`clientDataJSON`** property of the [AuthenticatorResponse] interface
+  /// stores a
+  /// [JSON](https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Objects/JSON)
+  /// string in an
+  /// `ArrayBuffer`, representing the client data that was passed to
+  /// [CredentialsContainer.create] or [CredentialsContainer.get]. This property
+  /// is only accessed on one of the child objects of `AuthenticatorResponse`,
+  /// specifically [AuthenticatorAttestationResponse] or
+  /// [AuthenticatorAssertionResponse].
   external JSArrayBuffer get clientDataJSON;
 }
 
@@ -413,6 +472,21 @@ extension type AuthenticatorAttestationResponse._(JSObject _)
   /// algorithm type. This information will need to be stored in order to verify
   /// future authentication operations (i.e., using [CredentialsContainer.get]).
   external COSEAlgorithmIdentifier getPublicKeyAlgorithm();
+
+  /// The **`attestationObject`** property of the
+  /// [AuthenticatorAttestationResponse] interface returns an
+  /// `ArrayBuffer` containing the new public key, as well as signature over the
+  /// entire `attestationObject` with a private key that is stored in the
+  /// authenticator when it is manufactured.
+  ///
+  /// As part of the [CredentialsContainer.create] call, an authenticator will
+  /// create a new keypair as well as an `attestationObject` for that keypair.
+  /// The public key
+  /// that corresponds to the private key that has created the attestation
+  /// signature is well
+  /// known; however, there are various well known attestation public key chains
+  /// for different
+  /// ecosystems (for example, Android or TPM attestations).
   external JSArrayBuffer get attestationObject;
 }
 
@@ -439,8 +513,35 @@ extension type AuthenticatorAttestationResponse._(JSObject _)
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/AuthenticatorAssertionResponse).
 extension type AuthenticatorAssertionResponse._(JSObject _)
     implements AuthenticatorResponse, JSObject {
+  /// The **`authenticatorData`** property of the
+  /// [AuthenticatorAssertionResponse] interface returns an `ArrayBuffer`
+  /// containing information from the authenticator such as the Relying Party ID
+  /// Hash (rpIdHash), a signature counter, test of user presence, user
+  /// verification flags, and any extensions processed by the authenticator.
   external JSArrayBuffer get authenticatorData;
+
+  /// The **`signature`** read-only property of the
+  /// [AuthenticatorAssertionResponse] interface is an `ArrayBuffer`
+  /// object which is the signature of the authenticator for both
+  /// [AuthenticatorAssertionResponse.authenticatorData] and a SHA-256 hash of
+  /// the client data
+  /// ([AuthenticatorResponse.clientDataJSON]).
+  ///
+  /// This signature will be sent to the server for control, as part of the
+  /// response. It
+  /// provides the proof that an authenticator does possess the private key
+  /// which was used for
+  /// the credential's generation.
   external JSArrayBuffer get signature;
+
+  /// The **`userHandle`** read-only property of the
+  /// [AuthenticatorAssertionResponse] interface is an `ArrayBuffer` object
+  /// providing an opaque identifier for the given user. Such an identifier can
+  /// be used by the relying party's server to link the user account with its
+  /// corresponding credentials and other data.
+  ///
+  /// This value is specified as `user.id` in the options passed to the
+  /// originating [CredentialsContainer.create] call.
   external JSArrayBuffer? get userHandle;
 }
 extension type PublicKeyCredentialParameters._(JSObject _) implements JSObject {
@@ -449,10 +550,10 @@ extension type PublicKeyCredentialParameters._(JSObject _) implements JSObject {
     required COSEAlgorithmIdentifier alg,
   });
 
-  external set type(String value);
   external String get type;
-  external set alg(COSEAlgorithmIdentifier value);
+  external set type(String value);
   external COSEAlgorithmIdentifier get alg;
+  external set alg(COSEAlgorithmIdentifier value);
 }
 extension type PublicKeyCredentialCreationOptions._(JSObject _)
     implements JSObject {
@@ -470,34 +571,34 @@ extension type PublicKeyCredentialCreationOptions._(JSObject _)
     AuthenticationExtensionsClientInputs extensions,
   });
 
-  external set rp(PublicKeyCredentialRpEntity value);
   external PublicKeyCredentialRpEntity get rp;
-  external set user(PublicKeyCredentialUserEntity value);
+  external set rp(PublicKeyCredentialRpEntity value);
   external PublicKeyCredentialUserEntity get user;
-  external set challenge(BufferSource value);
+  external set user(PublicKeyCredentialUserEntity value);
   external BufferSource get challenge;
-  external set pubKeyCredParams(JSArray<PublicKeyCredentialParameters> value);
+  external set challenge(BufferSource value);
   external JSArray<PublicKeyCredentialParameters> get pubKeyCredParams;
-  external set timeout(int value);
+  external set pubKeyCredParams(JSArray<PublicKeyCredentialParameters> value);
   external int get timeout;
-  external set excludeCredentials(JSArray<PublicKeyCredentialDescriptor> value);
+  external set timeout(int value);
   external JSArray<PublicKeyCredentialDescriptor> get excludeCredentials;
-  external set authenticatorSelection(AuthenticatorSelectionCriteria value);
+  external set excludeCredentials(JSArray<PublicKeyCredentialDescriptor> value);
   external AuthenticatorSelectionCriteria get authenticatorSelection;
-  external set hints(JSArray<JSString> value);
+  external set authenticatorSelection(AuthenticatorSelectionCriteria value);
   external JSArray<JSString> get hints;
-  external set attestation(String value);
+  external set hints(JSArray<JSString> value);
   external String get attestation;
-  external set attestationFormats(JSArray<JSString> value);
+  external set attestation(String value);
   external JSArray<JSString> get attestationFormats;
-  external set extensions(AuthenticationExtensionsClientInputs value);
+  external set attestationFormats(JSArray<JSString> value);
   external AuthenticationExtensionsClientInputs get extensions;
+  external set extensions(AuthenticationExtensionsClientInputs value);
 }
 extension type PublicKeyCredentialEntity._(JSObject _) implements JSObject {
   external factory PublicKeyCredentialEntity({required String name});
 
-  external set name(String value);
   external String get name;
+  external set name(String value);
 }
 extension type PublicKeyCredentialRpEntity._(JSObject _)
     implements PublicKeyCredentialEntity, JSObject {
@@ -506,8 +607,8 @@ extension type PublicKeyCredentialRpEntity._(JSObject _)
     String id,
   });
 
-  external set id(String value);
   external String get id;
+  external set id(String value);
 }
 extension type PublicKeyCredentialUserEntity._(JSObject _)
     implements PublicKeyCredentialEntity, JSObject {
@@ -517,10 +618,10 @@ extension type PublicKeyCredentialUserEntity._(JSObject _)
     required String displayName,
   });
 
-  external set id(BufferSource value);
   external BufferSource get id;
-  external set displayName(String value);
+  external set id(BufferSource value);
   external String get displayName;
+  external set displayName(String value);
 }
 extension type AuthenticatorSelectionCriteria._(JSObject _)
     implements JSObject {
@@ -531,14 +632,14 @@ extension type AuthenticatorSelectionCriteria._(JSObject _)
     String userVerification,
   });
 
-  external set authenticatorAttachment(String value);
   external String get authenticatorAttachment;
-  external set residentKey(String value);
+  external set authenticatorAttachment(String value);
   external String get residentKey;
-  external set requireResidentKey(bool value);
+  external set residentKey(String value);
   external bool get requireResidentKey;
-  external set userVerification(String value);
+  external set requireResidentKey(bool value);
   external String get userVerification;
+  external set userVerification(String value);
 }
 extension type PublicKeyCredentialRequestOptions._(JSObject _)
     implements JSObject {
@@ -552,20 +653,20 @@ extension type PublicKeyCredentialRequestOptions._(JSObject _)
     AuthenticationExtensionsClientInputs extensions,
   });
 
-  external set challenge(BufferSource value);
   external BufferSource get challenge;
-  external set timeout(int value);
+  external set challenge(BufferSource value);
   external int get timeout;
-  external set rpId(String value);
+  external set timeout(int value);
   external String get rpId;
-  external set allowCredentials(JSArray<PublicKeyCredentialDescriptor> value);
+  external set rpId(String value);
   external JSArray<PublicKeyCredentialDescriptor> get allowCredentials;
-  external set userVerification(String value);
+  external set allowCredentials(JSArray<PublicKeyCredentialDescriptor> value);
   external String get userVerification;
-  external set hints(JSArray<JSString> value);
+  external set userVerification(String value);
   external JSArray<JSString> get hints;
-  external set extensions(AuthenticationExtensionsClientInputs value);
+  external set hints(JSArray<JSString> value);
   external AuthenticationExtensionsClientInputs get extensions;
+  external set extensions(AuthenticationExtensionsClientInputs value);
 }
 extension type AuthenticationExtensionsClientInputs._(JSObject _)
     implements JSObject {
@@ -579,22 +680,22 @@ extension type AuthenticationExtensionsClientInputs._(JSObject _)
     AuthenticationExtensionsSupplementalPubKeysInputs supplementalPubKeys,
   });
 
-  external set appid(String value);
   external String get appid;
-  external set appidExclude(String value);
+  external set appid(String value);
   external String get appidExclude;
-  external set credProps(bool value);
+  external set appidExclude(String value);
   external bool get credProps;
-  external set prf(AuthenticationExtensionsPRFInputs value);
+  external set credProps(bool value);
   external AuthenticationExtensionsPRFInputs get prf;
-  external set largeBlob(AuthenticationExtensionsLargeBlobInputs value);
+  external set prf(AuthenticationExtensionsPRFInputs value);
   external AuthenticationExtensionsLargeBlobInputs get largeBlob;
-  external set uvm(bool value);
+  external set largeBlob(AuthenticationExtensionsLargeBlobInputs value);
   external bool get uvm;
-  external set supplementalPubKeys(
-      AuthenticationExtensionsSupplementalPubKeysInputs value);
+  external set uvm(bool value);
   external AuthenticationExtensionsSupplementalPubKeysInputs
       get supplementalPubKeys;
+  external set supplementalPubKeys(
+      AuthenticationExtensionsSupplementalPubKeysInputs value);
 }
 extension type AuthenticationExtensionsClientOutputs._(JSObject _)
     implements JSObject {
@@ -608,22 +709,22 @@ extension type AuthenticationExtensionsClientOutputs._(JSObject _)
     AuthenticationExtensionsSupplementalPubKeysOutputs supplementalPubKeys,
   });
 
-  external set appid(bool value);
   external bool get appid;
-  external set appidExclude(bool value);
+  external set appid(bool value);
   external bool get appidExclude;
-  external set credProps(CredentialPropertiesOutput value);
+  external set appidExclude(bool value);
   external CredentialPropertiesOutput get credProps;
-  external set prf(AuthenticationExtensionsPRFOutputs value);
+  external set credProps(CredentialPropertiesOutput value);
   external AuthenticationExtensionsPRFOutputs get prf;
-  external set largeBlob(AuthenticationExtensionsLargeBlobOutputs value);
+  external set prf(AuthenticationExtensionsPRFOutputs value);
   external AuthenticationExtensionsLargeBlobOutputs get largeBlob;
-  external set uvm(UvmEntries value);
+  external set largeBlob(AuthenticationExtensionsLargeBlobOutputs value);
   external UvmEntries get uvm;
-  external set supplementalPubKeys(
-      AuthenticationExtensionsSupplementalPubKeysOutputs value);
+  external set uvm(UvmEntries value);
   external AuthenticationExtensionsSupplementalPubKeysOutputs
       get supplementalPubKeys;
+  external set supplementalPubKeys(
+      AuthenticationExtensionsSupplementalPubKeysOutputs value);
 }
 extension type CollectedClientData._(JSObject _) implements JSObject {
   external factory CollectedClientData({
@@ -634,16 +735,16 @@ extension type CollectedClientData._(JSObject _) implements JSObject {
     bool crossOrigin,
   });
 
-  external set type(String value);
   external String get type;
-  external set challenge(String value);
+  external set type(String value);
   external String get challenge;
-  external set origin(String value);
+  external set challenge(String value);
   external String get origin;
-  external set topOrigin(String value);
+  external set origin(String value);
   external String get topOrigin;
-  external set crossOrigin(bool value);
+  external set topOrigin(String value);
   external bool get crossOrigin;
+  external set crossOrigin(bool value);
 }
 extension type TokenBinding._(JSObject _) implements JSObject {
   external factory TokenBinding({
@@ -651,10 +752,10 @@ extension type TokenBinding._(JSObject _) implements JSObject {
     String id,
   });
 
-  external set status(String value);
   external String get status;
-  external set id(String value);
+  external set status(String value);
   external String get id;
+  external set id(String value);
 }
 extension type PublicKeyCredentialDescriptor._(JSObject _) implements JSObject {
   external factory PublicKeyCredentialDescriptor({
@@ -663,12 +764,12 @@ extension type PublicKeyCredentialDescriptor._(JSObject _) implements JSObject {
     JSArray<JSString> transports,
   });
 
-  external set type(String value);
   external String get type;
-  external set id(BufferSource value);
+  external set type(String value);
   external BufferSource get id;
-  external set transports(JSArray<JSString> value);
+  external set id(BufferSource value);
   external JSArray<JSString> get transports;
+  external set transports(JSArray<JSString> value);
 }
 extension type CredentialPropertiesOutput._(JSObject _) implements JSObject {
   external factory CredentialPropertiesOutput({
@@ -676,10 +777,10 @@ extension type CredentialPropertiesOutput._(JSObject _) implements JSObject {
     String authenticatorDisplayName,
   });
 
-  external set rk(bool value);
   external bool get rk;
-  external set authenticatorDisplayName(String value);
+  external set rk(bool value);
   external String get authenticatorDisplayName;
+  external set authenticatorDisplayName(String value);
 }
 extension type AuthenticationExtensionsPRFValues._(JSObject _)
     implements JSObject {
@@ -688,10 +789,10 @@ extension type AuthenticationExtensionsPRFValues._(JSObject _)
     BufferSource second,
   });
 
-  external set first(BufferSource value);
   external BufferSource get first;
-  external set second(BufferSource value);
+  external set first(BufferSource value);
   external BufferSource get second;
+  external set second(BufferSource value);
 }
 extension type AuthenticationExtensionsPRFInputs._(JSObject _)
     implements JSObject {
@@ -700,10 +801,10 @@ extension type AuthenticationExtensionsPRFInputs._(JSObject _)
     JSObject evalByCredential,
   });
 
-  external set eval(AuthenticationExtensionsPRFValues value);
   external AuthenticationExtensionsPRFValues get eval;
-  external set evalByCredential(JSObject value);
+  external set eval(AuthenticationExtensionsPRFValues value);
   external JSObject get evalByCredential;
+  external set evalByCredential(JSObject value);
 }
 extension type AuthenticationExtensionsPRFOutputs._(JSObject _)
     implements JSObject {
@@ -712,10 +813,10 @@ extension type AuthenticationExtensionsPRFOutputs._(JSObject _)
     AuthenticationExtensionsPRFValues results,
   });
 
-  external set enabled(bool value);
   external bool get enabled;
-  external set results(AuthenticationExtensionsPRFValues value);
+  external set enabled(bool value);
   external AuthenticationExtensionsPRFValues get results;
+  external set results(AuthenticationExtensionsPRFValues value);
 }
 extension type AuthenticationExtensionsLargeBlobInputs._(JSObject _)
     implements JSObject {
@@ -725,12 +826,12 @@ extension type AuthenticationExtensionsLargeBlobInputs._(JSObject _)
     BufferSource write,
   });
 
-  external set support(String value);
   external String get support;
-  external set read(bool value);
+  external set support(String value);
   external bool get read;
-  external set write(BufferSource value);
+  external set read(bool value);
   external BufferSource get write;
+  external set write(BufferSource value);
 }
 extension type AuthenticationExtensionsLargeBlobOutputs._(JSObject _)
     implements JSObject {
@@ -740,12 +841,12 @@ extension type AuthenticationExtensionsLargeBlobOutputs._(JSObject _)
     bool written,
   });
 
-  external set supported(bool value);
   external bool get supported;
-  external set blob(JSArrayBuffer value);
+  external set supported(bool value);
   external JSArrayBuffer get blob;
-  external set written(bool value);
+  external set blob(JSArrayBuffer value);
   external bool get written;
+  external set written(bool value);
 }
 extension type AuthenticationExtensionsSupplementalPubKeysInputs._(JSObject _)
     implements JSObject {
@@ -755,18 +856,18 @@ extension type AuthenticationExtensionsSupplementalPubKeysInputs._(JSObject _)
     JSArray<JSString> attestationFormats,
   });
 
-  external set scopes(JSArray<JSString> value);
   external JSArray<JSString> get scopes;
-  external set attestation(String value);
+  external set scopes(JSArray<JSString> value);
   external String get attestation;
-  external set attestationFormats(JSArray<JSString> value);
+  external set attestation(String value);
   external JSArray<JSString> get attestationFormats;
+  external set attestationFormats(JSArray<JSString> value);
 }
 extension type AuthenticationExtensionsSupplementalPubKeysOutputs._(JSObject _)
     implements JSObject {
   external factory AuthenticationExtensionsSupplementalPubKeysOutputs(
       {required JSArray<JSArrayBuffer> signatures});
 
-  external set signatures(JSArray<JSArrayBuffer> value);
   external JSArray<JSArrayBuffer> get signatures;
+  external set signatures(JSArray<JSArrayBuffer> value);
 }
diff --git a/lib/src/dom/webcryptoapi.dart b/lib/src/dom/webcryptoapi.dart
index 1405de08..00055818 100644
--- a/lib/src/dom/webcryptoapi.dart
+++ b/lib/src/dom/webcryptoapi.dart
@@ -56,19 +56,23 @@ extension type Crypto._(JSObject _) implements JSObject {
   /// The **`randomUUID()`** method of the [Crypto] interface is used to
   /// generate a v4  using a cryptographically secure random number generator.
   external String randomUUID();
+
+  /// The **`Crypto.subtle`** read-only property returns a
+  /// [SubtleCrypto] which can then be used to perform low-level
+  /// cryptographic operations.
   external SubtleCrypto get subtle;
 }
 extension type Algorithm._(JSObject _) implements JSObject {
   external factory Algorithm({required String name});
 
-  external set name(String value);
   external String get name;
+  external set name(String value);
 }
 extension type KeyAlgorithm._(JSObject _) implements JSObject {
   external factory KeyAlgorithm({required String name});
 
-  external set name(String value);
   external String get name;
+  external set name(String value);
 }
 
 /// The **`CryptoKey`** interface of the
@@ -85,9 +89,39 @@ extension type KeyAlgorithm._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey).
 extension type CryptoKey._(JSObject _) implements JSObject {
+  /// The read-only **`type`** property of the [CryptoKey] interface indicates
+  /// which kind of key is represented by the object. It can have the following
+  /// values:
+  ///
+  /// - `"secret"`: This key is a secret key for use with a .
+  /// - `"private"`: This key is the private half of an
+  ///   [`CryptoKeyPair`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKeyPair).
+  /// - `"public"`: This key is the public half of an
+  ///   [`CryptoKeyPair`](https://developer.mozilla.org/en-US/docs/Web/API/CryptoKeyPair).
   external KeyType get type;
+
+  /// The read-only **`extractable`** property of the [CryptoKey] interface
+  /// indicates whether or not the key may be extracted using
+  /// [`SubtleCrypto.exportKey()`](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/exportKey)
+  /// or
+  /// [`SubtleCrypto.wrapKey()`](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/wrapKey).
+  ///
+  /// If the key cannot be exported,
+  /// [`exportKey()`](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/exportKey)
+  /// or
+  /// [`wrapKey()`](https://developer.mozilla.org/en-US/docs/Web/API/SubtleCrypto/wrapKey)
+  /// will throw an exception if used to extract it.
   external bool get extractable;
+
+  /// The read-only **`algorithm`** property of the [CryptoKey] interface
+  /// returns an object describing the algorithm for which this key can be used,
+  /// and any associated extra parameters.
+  ///
+  /// The object returned depends of the algorithm used to generate the key.
   external JSObject get algorithm;
+
+  /// The read-only **`usages`** property of the [CryptoKey] interface indicates
+  /// what can be done with the key.
   external JSObject get usages;
 }
 
@@ -359,12 +393,12 @@ extension type RsaOtherPrimesInfo._(JSObject _) implements JSObject {
     String t,
   });
 
-  external set r(String value);
   external String get r;
-  external set d(String value);
+  external set r(String value);
   external String get d;
-  external set t(String value);
+  external set d(String value);
   external String get t;
+  external set t(String value);
 }
 extension type JsonWebKey._(JSObject _) implements JSObject {
   external factory JsonWebKey({
@@ -388,42 +422,42 @@ extension type JsonWebKey._(JSObject _) implements JSObject {
     String k,
   });
 
-  external set kty(String value);
   external String get kty;
-  external set use(String value);
+  external set kty(String value);
   external String get use;
-  external set key_ops(JSArray<JSString> value);
+  external set use(String value);
   external JSArray<JSString> get key_ops;
-  external set alg(String value);
+  external set key_ops(JSArray<JSString> value);
   external String get alg;
-  external set ext(bool value);
+  external set alg(String value);
   external bool get ext;
-  external set crv(String value);
+  external set ext(bool value);
   external String get crv;
-  external set x(String value);
+  external set crv(String value);
   external String get x;
-  external set y(String value);
+  external set x(String value);
   external String get y;
-  external set d(String value);
+  external set y(String value);
   external String get d;
-  external set n(String value);
+  external set d(String value);
   external String get n;
-  external set e(String value);
+  external set n(String value);
   external String get e;
-  external set p(String value);
+  external set e(String value);
   external String get p;
-  external set q(String value);
+  external set p(String value);
   external String get q;
-  external set dp(String value);
+  external set q(String value);
   external String get dp;
-  external set dq(String value);
+  external set dp(String value);
   external String get dq;
-  external set qi(String value);
+  external set dq(String value);
   external String get qi;
-  external set oth(JSArray<RsaOtherPrimesInfo> value);
+  external set qi(String value);
   external JSArray<RsaOtherPrimesInfo> get oth;
-  external set k(String value);
+  external set oth(JSArray<RsaOtherPrimesInfo> value);
   external String get k;
+  external set k(String value);
 }
 
 /// The **`CryptoKeyPair`** dictionary of the
@@ -450,10 +484,10 @@ extension type CryptoKeyPair._(JSObject _) implements JSObject {
     CryptoKey privateKey,
   });
 
-  external set publicKey(CryptoKey value);
   external CryptoKey get publicKey;
-  external set privateKey(CryptoKey value);
+  external set publicKey(CryptoKey value);
   external CryptoKey get privateKey;
+  external set privateKey(CryptoKey value);
 }
 extension type RsaKeyGenParams._(JSObject _) implements Algorithm, JSObject {
   external factory RsaKeyGenParams({
@@ -462,10 +496,10 @@ extension type RsaKeyGenParams._(JSObject _) implements Algorithm, JSObject {
     required BigInteger publicExponent,
   });
 
-  external set modulusLength(int value);
   external int get modulusLength;
-  external set publicExponent(BigInteger value);
+  external set modulusLength(int value);
   external BigInteger get publicExponent;
+  external set publicExponent(BigInteger value);
 }
 
 /// The **`RsaHashedKeyGenParams`** dictionary of the
@@ -491,8 +525,8 @@ extension type RsaHashedKeyGenParams._(JSObject _)
     required HashAlgorithmIdentifier hash,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
+  external set hash(HashAlgorithmIdentifier value);
 }
 extension type RsaKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
   external factory RsaKeyAlgorithm({
@@ -501,10 +535,10 @@ extension type RsaKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
     required BigInteger publicExponent,
   });
 
-  external set modulusLength(int value);
   external int get modulusLength;
-  external set publicExponent(BigInteger value);
+  external set modulusLength(int value);
   external BigInteger get publicExponent;
+  external set publicExponent(BigInteger value);
 }
 extension type RsaHashedKeyAlgorithm._(JSObject _)
     implements RsaKeyAlgorithm, JSObject {
@@ -515,8 +549,8 @@ extension type RsaHashedKeyAlgorithm._(JSObject _)
     required KeyAlgorithm hash,
   });
 
-  external set hash(KeyAlgorithm value);
   external KeyAlgorithm get hash;
+  external set hash(KeyAlgorithm value);
 }
 
 /// The **`RsaHashedImportParams`** dictionary of the
@@ -540,8 +574,8 @@ extension type RsaHashedImportParams._(JSObject _)
     required HashAlgorithmIdentifier hash,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
+  external set hash(HashAlgorithmIdentifier value);
 }
 
 /// The **`RsaPssParams`** dictionary of the
@@ -561,8 +595,8 @@ extension type RsaPssParams._(JSObject _) implements Algorithm, JSObject {
     required int saltLength,
   });
 
-  external set saltLength(int value);
   external int get saltLength;
+  external set saltLength(int value);
 }
 
 /// The **`RsaOaepParams`** dictionary of the
@@ -583,8 +617,8 @@ extension type RsaOaepParams._(JSObject _) implements Algorithm, JSObject {
     BufferSource label,
   });
 
-  external set label(BufferSource value);
   external BufferSource get label;
+  external set label(BufferSource value);
 }
 
 /// The **`EcdsaParams`** dictionary of the
@@ -604,8 +638,8 @@ extension type EcdsaParams._(JSObject _) implements Algorithm, JSObject {
     required HashAlgorithmIdentifier hash,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
+  external set hash(HashAlgorithmIdentifier value);
 }
 
 /// The **`EcKeyGenParams`** dictionary of the
@@ -627,8 +661,8 @@ extension type EcKeyGenParams._(JSObject _) implements Algorithm, JSObject {
     required NamedCurve namedCurve,
   });
 
-  external set namedCurve(NamedCurve value);
   external NamedCurve get namedCurve;
+  external set namedCurve(NamedCurve value);
 }
 extension type EcKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
   external factory EcKeyAlgorithm({
@@ -636,8 +670,8 @@ extension type EcKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
     required NamedCurve namedCurve,
   });
 
-  external set namedCurve(NamedCurve value);
   external NamedCurve get namedCurve;
+  external set namedCurve(NamedCurve value);
 }
 
 /// The **`EcKeyImportParams`** dictionary of the
@@ -660,8 +694,8 @@ extension type EcKeyImportParams._(JSObject _) implements Algorithm, JSObject {
     required NamedCurve namedCurve,
   });
 
-  external set namedCurve(NamedCurve value);
   external NamedCurve get namedCurve;
+  external set namedCurve(NamedCurve value);
 }
 
 /// The **`EcdhKeyDeriveParams`** dictionary of the
@@ -691,8 +725,8 @@ extension type EcdhKeyDeriveParams._(JSObject _)
     required CryptoKey public,
   });
 
-  external set public(CryptoKey value);
   external CryptoKey get public;
+  external set public(CryptoKey value);
 }
 
 /// The **`AesCtrParams`** dictionary of the
@@ -746,10 +780,10 @@ extension type AesCtrParams._(JSObject _) implements Algorithm, JSObject {
     required int length,
   });
 
-  external set counter(BufferSource value);
   external BufferSource get counter;
-  external set length(int value);
+  external set counter(BufferSource value);
   external int get length;
+  external set length(int value);
 }
 extension type AesKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
   external factory AesKeyAlgorithm({
@@ -757,8 +791,8 @@ extension type AesKeyAlgorithm._(JSObject _) implements KeyAlgorithm, JSObject {
     required int length,
   });
 
-  external set length(int value);
   external int get length;
+  external set length(int value);
 }
 
 /// The **`AesKeyGenParams`** dictionary of the
@@ -782,8 +816,8 @@ extension type AesKeyGenParams._(JSObject _) implements Algorithm, JSObject {
     required int length,
   });
 
-  external set length(int value);
   external int get length;
+  external set length(int value);
 }
 extension type AesDerivedKeyParams._(JSObject _)
     implements Algorithm, JSObject {
@@ -792,8 +826,8 @@ extension type AesDerivedKeyParams._(JSObject _)
     required int length,
   });
 
-  external set length(int value);
   external int get length;
+  external set length(int value);
 }
 
 /// The **`AesCbcParams`** dictionary of the
@@ -814,8 +848,8 @@ extension type AesCbcParams._(JSObject _) implements Algorithm, JSObject {
     required BufferSource iv,
   });
 
-  external set iv(BufferSource value);
   external BufferSource get iv;
+  external set iv(BufferSource value);
 }
 
 /// The **`AesGcmParams`** dictionary of the
@@ -843,12 +877,12 @@ extension type AesGcmParams._(JSObject _) implements Algorithm, JSObject {
     int tagLength,
   });
 
-  external set iv(BufferSource value);
   external BufferSource get iv;
-  external set additionalData(BufferSource value);
+  external set iv(BufferSource value);
   external BufferSource get additionalData;
-  external set tagLength(int value);
+  external set additionalData(BufferSource value);
   external int get tagLength;
+  external set tagLength(int value);
 }
 
 /// The **`HmacImportParams`** dictionary of the
@@ -870,10 +904,10 @@ extension type HmacImportParams._(JSObject _) implements Algorithm, JSObject {
     int length,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
-  external set length(int value);
+  external set hash(HashAlgorithmIdentifier value);
   external int get length;
+  external set length(int value);
 }
 extension type HmacKeyAlgorithm._(JSObject _)
     implements KeyAlgorithm, JSObject {
@@ -883,10 +917,10 @@ extension type HmacKeyAlgorithm._(JSObject _)
     required int length,
   });
 
-  external set hash(KeyAlgorithm value);
   external KeyAlgorithm get hash;
-  external set length(int value);
+  external set hash(KeyAlgorithm value);
   external int get length;
+  external set length(int value);
 }
 
 /// The **`HmacKeyGenParams`** dictionary of the
@@ -907,10 +941,10 @@ extension type HmacKeyGenParams._(JSObject _) implements Algorithm, JSObject {
     int length,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
-  external set length(int value);
+  external set hash(HashAlgorithmIdentifier value);
   external int get length;
+  external set length(int value);
 }
 
 /// The **`HkdfParams`** dictionary of the
@@ -932,12 +966,12 @@ extension type HkdfParams._(JSObject _) implements Algorithm, JSObject {
     required BufferSource info,
   });
 
-  external set hash(HashAlgorithmIdentifier value);
   external HashAlgorithmIdentifier get hash;
-  external set salt(BufferSource value);
+  external set hash(HashAlgorithmIdentifier value);
   external BufferSource get salt;
-  external set info(BufferSource value);
+  external set salt(BufferSource value);
   external BufferSource get info;
+  external set info(BufferSource value);
 }
 
 /// The **`Pbkdf2Params`** dictionary of the
@@ -959,10 +993,10 @@ extension type Pbkdf2Params._(JSObject _) implements Algorithm, JSObject {
     required HashAlgorithmIdentifier hash,
   });
 
-  external set salt(BufferSource value);
   external BufferSource get salt;
-  external set iterations(int value);
+  external set salt(BufferSource value);
   external int get iterations;
-  external set hash(HashAlgorithmIdentifier value);
+  external set iterations(int value);
   external HashAlgorithmIdentifier get hash;
+  external set hash(HashAlgorithmIdentifier value);
 }
diff --git a/lib/src/dom/webgl1.dart b/lib/src/dom/webgl1.dart
index b8f34ba6..b0f6e194 100644
--- a/lib/src/dom/webgl1.dart
+++ b/lib/src/dom/webgl1.dart
@@ -48,24 +48,24 @@ extension type WebGLContextAttributes._(JSObject _) implements JSObject {
     bool desynchronized,
   });
 
-  external set alpha(bool value);
   external bool get alpha;
-  external set depth(bool value);
+  external set alpha(bool value);
   external bool get depth;
-  external set stencil(bool value);
+  external set depth(bool value);
   external bool get stencil;
-  external set antialias(bool value);
+  external set stencil(bool value);
   external bool get antialias;
-  external set premultipliedAlpha(bool value);
+  external set antialias(bool value);
   external bool get premultipliedAlpha;
-  external set preserveDrawingBuffer(bool value);
+  external set premultipliedAlpha(bool value);
   external bool get preserveDrawingBuffer;
-  external set powerPreference(WebGLPowerPreference value);
+  external set preserveDrawingBuffer(bool value);
   external WebGLPowerPreference get powerPreference;
-  external set failIfMajorPerformanceCaveat(bool value);
+  external set powerPreference(WebGLPowerPreference value);
   external bool get failIfMajorPerformanceCaveat;
-  external set desynchronized(bool value);
+  external set failIfMajorPerformanceCaveat(bool value);
   external bool get desynchronized;
+  external set desynchronized(bool value);
 }
 
 /// The **`WebGLObject`** is part of the
@@ -193,8 +193,22 @@ extension type WebGLUniformLocation._(JSObject _) implements JSObject {}
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/WebGLActiveInfo).
 extension type WebGLActiveInfo._(JSObject _) implements JSObject {
+  /// The read-only **`WebGLActiveInfo.size`** property is a `Number`
+  /// representing the size of the requested data returned by calling the
+  /// [WebGLRenderingContext.getActiveAttrib] or
+  /// [WebGLRenderingContext.getActiveUniform] methods.
   external GLint get size;
+
+  /// The read-only **`WebGLActiveInfo.type`** property represents the type of
+  /// the requested data returned by calling the
+  /// [WebGLRenderingContext.getActiveAttrib] or
+  /// [WebGLRenderingContext.getActiveUniform] methods.
   external GLenum get type;
+
+  /// The read-only **`WebGLActiveInfo.name`** property represents the name of
+  /// the requested data returned by calling the
+  /// [WebGLRenderingContext.getActiveAttrib] or
+  /// [WebGLRenderingContext.getActiveUniform] methods.
   external String get name;
 }
 
@@ -208,8 +222,20 @@ extension type WebGLActiveInfo._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/WebGLShaderPrecisionFormat).
 extension type WebGLShaderPrecisionFormat._(JSObject _) implements JSObject {
+  /// The read-only **`WebGLShaderPrecisionFormat.rangeMin`** property returns
+  /// the base 2 log of the absolute value of the minimum value that can be
+  /// represented.
   external GLint get rangeMin;
+
+  /// The read-only **`WebGLShaderPrecisionFormat.rangeMax`** property returns
+  /// the base 2 log of the absolute value of the maximum value that can be
+  /// represented.
   external GLint get rangeMax;
+
+  /// The read-only **`WebGLShaderPrecisionFormat.precision`** property returns
+  /// the number of bits of precision that can be represented.
+  ///
+  /// For integer formats this value is always 0.
   external GLint get precision;
 }
 
@@ -1758,14 +1784,72 @@ extension type WebGLRenderingContext._(JSObject _) implements JSObject {
     GLboolean transpose,
     Float32List value,
   );
+
+  /// The **`WebGLRenderingContext.canvas`** property is a read-only
+  /// reference to the [HTMLCanvasElement] or [OffscreenCanvas]
+  /// object that is associated with the context. It might be
+  /// [`null`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null)
+  /// if it is not
+  /// associated with a `canvas` element or an [OffscreenCanvas]
+  /// object.
   external JSObject get canvas;
+
+  /// The read-only **`WebGLRenderingContext.drawingBufferWidth`**
+  /// property represents the actual width of the current drawing buffer. It
+  /// should match the
+  /// `width` attribute of the `canvas` element associated with
+  /// this context, but might differ if the implementation is not able to
+  /// provide the
+  /// requested width.
   external GLsizei get drawingBufferWidth;
+
+  /// The read-only **`WebGLRenderingContext.drawingBufferHeight`**
+  /// property represents the actual height of the current drawing buffer. It
+  /// should match the
+  /// `height` attribute of the `canvas` element associated with
+  /// this context, but might differ if the implementation is not able to
+  /// provide the
+  /// requested height.
   external GLsizei get drawingBufferHeight;
   external GLenum get drawingBufferFormat;
-  external set drawingBufferColorSpace(PredefinedColorSpace value);
+
+  /// The **`WebGLRenderingContext.drawingBufferColorSpace`** property specifies
+  /// the color space of the WebGL drawing buffer. Along with the default
+  /// (`srgb`), the `display-p3` color space can be used.
+  ///
+  /// See
+  /// [`WebGLRenderingContext.unpackColorSpace`](https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/unpackColorSpace)
+  /// for specifying the color space for textures.
   external PredefinedColorSpace get drawingBufferColorSpace;
-  external set unpackColorSpace(PredefinedColorSpace value);
+  external set drawingBufferColorSpace(PredefinedColorSpace value);
+
+  /// The **`WebGLRenderingContext.unpackColorSpace`** property specifies the
+  /// color space to convert to when importing textures. Along with the default
+  /// (`srgb`), the `display-p3` color space can be used.
+  ///
+  /// Texture image sources can be the following:
+  ///
+  /// - [`ImageBitmap`](https://developer.mozilla.org/en-US/docs/Web/API/ImageBitmap)
+  /// - [`ImageData`](https://developer.mozilla.org/en-US/docs/Web/API/ImageData)
+  /// - [`HTMLImageElement`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement)
+  /// - [`HTMLCanvasElement`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement)
+  /// - [`HTMLVideoElement`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement)
+  /// - [`OffscreenCanvas`](https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas)
+  /// - [`VideoFrame`](https://developer.mozilla.org/en-US/docs/Web/API/VideoFrame)
+  ///
+  /// Textures are imported using the
+  /// [`WebGLRenderingContext.texImage2D()`](https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/texImage2D)
+  /// and
+  /// [`WebGLRenderingContext.texSubImage2D()`](https://developer.mozilla.org/en-US/docs/Web/API/WebGLRenderingContext/texSubImage2D)
+  /// methods and conversion to the specified `unpackColorSpace` color space
+  /// happens during import.
+  ///
+  /// Note that this doesn't apply to
+  /// [`HTMLImageElement`](https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement)
+  /// when the `UNPACK_COLORSPACE_CONVERSION_WEBGL` pixel storage parameter is
+  /// set to `NONE`.
   external PredefinedColorSpace get unpackColorSpace;
+  external set unpackColorSpace(PredefinedColorSpace value);
 }
 
 /// The **WebContextEvent** interface is part of the
@@ -1783,6 +1867,9 @@ extension type WebGLContextEvent._(JSObject _) implements Event, JSObject {
     WebGLContextEventInit eventInit,
   ]);
 
+  /// The read-only **`WebGLContextEvent.statusMessage`** property contains
+  /// additional event status information, or is an empty string if no
+  /// additional information is available.
   external String get statusMessage;
 }
 extension type WebGLContextEventInit._(JSObject _)
@@ -1794,6 +1881,6 @@ extension type WebGLContextEventInit._(JSObject _)
     String statusMessage,
   });
 
-  external set statusMessage(String value);
   external String get statusMessage;
+  external set statusMessage(String value);
 }
diff --git a/lib/src/dom/webgl2.dart b/lib/src/dom/webgl2.dart
index 1c3fbb10..c4b0bef7 100644
--- a/lib/src/dom/webgl2.dart
+++ b/lib/src/dom/webgl2.dart
@@ -2090,8 +2090,8 @@ extension type WebGL2RenderingContext._(JSObject _) implements JSObject {
   external GLsizei get drawingBufferWidth;
   external GLsizei get drawingBufferHeight;
   external GLenum get drawingBufferFormat;
-  external set drawingBufferColorSpace(PredefinedColorSpace value);
   external PredefinedColorSpace get drawingBufferColorSpace;
-  external set unpackColorSpace(PredefinedColorSpace value);
+  external set drawingBufferColorSpace(PredefinedColorSpace value);
   external PredefinedColorSpace get unpackColorSpace;
+  external set unpackColorSpace(PredefinedColorSpace value);
 }
diff --git a/lib/src/dom/webidl.dart b/lib/src/dom/webidl.dart
index f5497f09..3e5bc58c 100644
--- a/lib/src/dom/webidl.dart
+++ b/lib/src/dom/webidl.dart
@@ -65,7 +65,25 @@ extension type DOMException._(JSObject _) implements JSObject {
   external static int get TIMEOUT_ERR;
   external static int get INVALID_NODE_TYPE_ERR;
   external static int get DATA_CLONE_ERR;
+
+  /// The **`name`** read-only property of the
+  /// [DOMException] interface returns a string that contains
+  /// one of the strings associated with an
+  /// [error name](https://developer.mozilla.org/en-US/docs/Web/API/DOMException#error_names).
   external String get name;
+
+  /// The **`message`** read-only property of the
+  /// [DOMException] interface returns a string representing
+  /// a message or description associated with the given
+  /// [error name](https://developer.mozilla.org/en-US/docs/Web/API/DOMException#error_names).
   external String get message;
+
+  /// The **`code`** read-only property of the [DOMException] interface returns
+  /// one of the legacy
+  /// [error code constants](https://developer.mozilla.org/en-US/docs/Web/API/DOMException#error_names),
+  /// or `0` if none match.
+  ///
+  /// This field is used for historical reasons. New DOM exceptions don't use
+  /// this anymore: they put this info in the [DOMException.name] attribute.
   external int get code;
 }
diff --git a/lib/src/dom/webrtc.dart b/lib/src/dom/webrtc.dart
index 71d94736..d1ed7639 100644
--- a/lib/src/dom/webrtc.dart
+++ b/lib/src/dom/webrtc.dart
@@ -56,18 +56,18 @@ extension type RTCConfiguration._(JSObject _) implements JSObject {
     int iceCandidatePoolSize,
   });
 
-  external set iceServers(JSArray<RTCIceServer> value);
   external JSArray<RTCIceServer> get iceServers;
-  external set iceTransportPolicy(RTCIceTransportPolicy value);
+  external set iceServers(JSArray<RTCIceServer> value);
   external RTCIceTransportPolicy get iceTransportPolicy;
-  external set bundlePolicy(RTCBundlePolicy value);
+  external set iceTransportPolicy(RTCIceTransportPolicy value);
   external RTCBundlePolicy get bundlePolicy;
-  external set rtcpMuxPolicy(RTCRtcpMuxPolicy value);
+  external set bundlePolicy(RTCBundlePolicy value);
   external RTCRtcpMuxPolicy get rtcpMuxPolicy;
-  external set certificates(JSArray<RTCCertificate> value);
+  external set rtcpMuxPolicy(RTCRtcpMuxPolicy value);
   external JSArray<RTCCertificate> get certificates;
-  external set iceCandidatePoolSize(int value);
+  external set certificates(JSArray<RTCCertificate> value);
   external int get iceCandidatePoolSize;
+  external set iceCandidatePoolSize(int value);
 }
 extension type RTCIceServer._(JSObject _) implements JSObject {
   external factory RTCIceServer({
@@ -76,12 +76,12 @@ extension type RTCIceServer._(JSObject _) implements JSObject {
     String credential,
   });
 
-  external set urls(JSAny value);
   external JSAny get urls;
-  external set username(String value);
+  external set urls(JSAny value);
   external String get username;
-  external set credential(String value);
+  external set username(String value);
   external String get credential;
+  external set credential(String value);
 }
 extension type RTCOfferAnswerOptions._(JSObject _) implements JSObject {
   RTCOfferAnswerOptions() : _ = JSObject();
@@ -94,12 +94,12 @@ extension type RTCOfferOptions._(JSObject _)
     bool offerToReceiveVideo,
   });
 
-  external set iceRestart(bool value);
   external bool get iceRestart;
-  external set offerToReceiveAudio(bool value);
+  external set iceRestart(bool value);
   external bool get offerToReceiveAudio;
-  external set offerToReceiveVideo(bool value);
+  external set offerToReceiveAudio(bool value);
   external bool get offerToReceiveVideo;
+  external set offerToReceiveVideo(bool value);
 }
 extension type RTCAnswerOptions._(JSObject _)
     implements RTCOfferAnswerOptions, JSObject {
@@ -415,36 +415,226 @@ extension type RTCPeerConnection._(JSObject _)
   /// specified
   /// [MediaStreamTrack].
   external JSPromise<RTCStatsReport> getStats([MediaStreamTrack? selector]);
+
+  /// The read-only property **`RTCPeerConnection.localDescription`** returns an
+  /// [RTCSessionDescription] describing the session for the local end of the
+  /// connection.
+  /// If it has not yet been set, this is `null`.
   external RTCSessionDescription? get localDescription;
+
+  /// The read-only property
+  /// **`RTCPeerConnection.currentLocalDescription`** returns an
+  /// [RTCSessionDescription] object describing the local end of the connection
+  /// as it was most recently successfully negotiated since the last time the
+  /// [RTCPeerConnection] finished negotiating and connecting to a remote peer.
+  /// Also included is a list of any ICE candidates that may already have been
+  /// generated by
+  /// the ICE agent since the offer or answer represented by the description was
+  /// first
+  /// instantiated.
+  ///
+  /// To change the `currentLocalDescription`, call
+  /// [RTCPeerConnection.setLocalDescription], which triggers a series of
+  /// events which leads to this value being set. For details on what exactly
+  /// happens and why
+  /// the change isn't necessarily instantaneous, see
+  /// [Pending and current descriptions](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Connectivity#pending_and_current_descriptions)
+  /// in the WebRTC Connectivity page.
+  ///
+  /// > **Note:** Unlike [RTCPeerConnection.localDescription], this value
+  /// > represents the
+  /// > actual current state of the local end of the connection;
+  /// > `localDescription`
+  /// > may specify a description which the connection is currently in the
+  /// > process of
+  /// > switching over to.
   external RTCSessionDescription? get currentLocalDescription;
+
+  /// The read-only property
+  /// **`RTCPeerConnection.pendingLocalDescription`** returns an
+  /// [RTCSessionDescription] object describing a pending configuration change
+  /// for the local end of the connection. This does not describe the connection
+  /// as it
+  /// currently stands, but as it may exist in the near future. Use
+  /// [RTCPeerConnection.currentLocalDescription] or
+  /// [RTCPeerConnection.localDescription] to get the current state of the
+  /// endpoint. For details on the difference, see
+  /// [Pending and current descriptions](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Connectivity#pending_and_current_descriptions)
+  /// in the WebRTC Connectivity page.
   external RTCSessionDescription? get pendingLocalDescription;
+
+  /// The read-only property
+  /// **`RTCPeerConnection.remoteDescription`** returns a
+  /// [RTCSessionDescription] describing the session (which includes
+  /// configuration and media information) for the remote end of the connection.
+  /// If this
+  /// hasn't been set yet, this is `null`.
+  ///
+  /// The returned value typically reflects a remote description which has been
+  /// received over
+  /// the signaling server (as either an offer or an answer) and then put into
+  /// effect by your
+  /// code calling [RTCPeerConnection.setRemoteDescription] in response.
   external RTCSessionDescription? get remoteDescription;
+
+  /// The read-only property
+  /// **`RTCPeerConnection.currentRemoteDescription`** returns an
+  /// [RTCSessionDescription] object describing the remote end of the connection
+  /// as it was most recently successfully negotiated since the last time the
+  /// [RTCPeerConnection] finished negotiating and connecting to a remote peer.
+  /// Also included is a list of any ICE candidates that may already have been
+  /// generated by
+  /// the ICE agent since the offer or answer represented by the description was
+  /// first
+  /// instantiated.
+  ///
+  /// To change the `currentRemoteDescription`, call
+  /// [RTCPeerConnection.setRemoteDescription], which triggers a series of
+  /// events which leads to this value being set. For details on what exactly
+  /// happens and why
+  /// the change isn't necessarily instantaneous, see
+  /// [Pending and current descriptions](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Connectivity#pending_and_current_descriptions)
+  /// in the WebRTC Connectivity page.
+  ///
+  /// > **Note:** Unlike [RTCPeerConnection.remoteDescription], this value
+  /// > represents the
+  /// > actual current state of the local end of the connection;
+  /// > `remoteDescription` may specify a description which the connection is
+  /// > currently in the process of switching over to.
   external RTCSessionDescription? get currentRemoteDescription;
+
+  /// The read-only property
+  /// **`RTCPeerConnection.pendingRemoteDescription`** returns an
+  /// [RTCSessionDescription] object describing a pending configuration change
+  /// for the remote end of the connection. This does not describe the
+  /// connection as it
+  /// currently stands, but as it may exist in the near future. Use
+  /// [RTCPeerConnection.currentRemoteDescription] or
+  /// [RTCPeerConnection.remoteDescription] to get the current session
+  /// description for the remote endpoint. For details on the difference, see
+  /// [Pending and current descriptions](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Connectivity#pending_and_current_descriptions)
+  /// in the WebRTC Connectivity page.
   external RTCSessionDescription? get pendingRemoteDescription;
+
+  /// The read-only **`signalingState`** property on the
+  /// [RTCPeerConnection] interface returns a string value
+  /// describing the state of the signaling process
+  /// on the local end of the connection
+  /// while connecting or reconnecting to another peer.
+  /// See
+  /// [Signaling](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Session_lifetime#signaling)
+  /// in our WebRTC session lifetime page.
+  ///
+  /// Because the signaling process is a state machine, being able to verify
+  /// that your code
+  /// is in the expected state when messages arrive can help avoid unexpected
+  /// and avoidable
+  /// failures. For example, if you receive an answer while the `signalingState`
+  /// isn't `"have-local-offer"`, you know that something is wrong, since you
+  /// should only receive answers after creating an offer but before an answer
+  /// has been
+  /// received and passed into [RTCPeerConnection.setLocalDescription]. Your
+  /// code will be more reliable if you watch for mismatched states like this
+  /// and handle them
+  /// gracefully.
+  ///
+  /// This value may also be useful during debugging, for example.
+  ///
+  /// In addition, when the value of this property changes, a
+  /// [RTCPeerConnection.signalingstatechange_event] event is sent to the
+  /// [RTCPeerConnection]
+  /// instance.
   external RTCSignalingState get signalingState;
+
+  /// The read-only property **`RTCPeerConnection.iceGatheringState`** returns a
+  /// string
+  /// that describes the connection's ICE gathering state.
+  /// This lets you detect, for example, when collection of ICE candidates has
+  /// finished.
+  ///
+  /// You can detect when the value of this property changes by watching for an
+  /// event of type
+  /// [RTCPeerConnection.icegatheringstatechange_event].
   external RTCIceGatheringState get iceGatheringState;
+
+  /// The read-only property **`RTCPeerConnection.iceConnectionState`** returns
+  /// a string which state of the  agent associated with the
+  /// [RTCPeerConnection]:
+  /// `new`, `checking`, `connected`, `completed`,
+  /// `failed`, `disconnected`, and `closed`.
+  ///
+  /// It describes the current state of the ICE agent
+  /// and its connection to the ICE server;
+  /// that is, the  or  server.
+  ///
+  /// You can detect when this value has changed by watching for the
+  /// [RTCPeerConnection.iceconnectionstatechange_event] event.
   external RTCIceConnectionState get iceConnectionState;
+
+  /// The read-only **`connectionState`** property of the [RTCPeerConnection]
+  /// interface indicates the current state of the peer connection by returning
+  /// one of the following string values: `new`, `connecting`, `connected`,
+  /// `disconnected`, `failed`, or `closed`.
+  ///
+  /// This state essentially represents the aggregate state of all ICE
+  /// transports (which are of type [RTCIceTransport] or [RTCDtlsTransport])
+  /// being used by the connection.
+  ///
+  /// When this property's value changes, a
+  /// [RTCPeerConnection.connectionstatechange_event] event is sent to the
+  /// [RTCPeerConnection] instance.
   external RTCPeerConnectionState get connectionState;
+
+  /// The read-only **[RTCPeerConnection]** property
+  /// **`canTrickleIceCandidates`**
+  /// returns a boolean value which indicates whether or not the remote peer can
+  /// accept
+  /// [trickled ICE candidates](https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-trickle-ice).
+  ///
+  /// **ICE trickling** is the process of continuing to send candidates after
+  /// the initial offer or answer has already been sent to the other peer.
+  ///
+  /// This property is only set after having called
+  /// [RTCPeerConnection.setRemoteDescription]. Ideally, your signaling
+  /// protocol provides a way to detect trickling support, so that you don't
+  /// need to rely on
+  /// this property. A WebRTC browser will always support trickle ICE. If
+  /// trickling isn't
+  /// supported, or you aren't able to tell, you can check for a falsy value for
+  /// this
+  /// property and then wait until the value of
+  /// [RTCPeerConnection.iceGatheringState] changes to
+  /// `"completed"` before creating and sending the initial offer. That way, the
+  /// offer contains all of the candidates.
   external bool? get canTrickleIceCandidates;
-  external set onnegotiationneeded(EventHandler value);
   external EventHandler get onnegotiationneeded;
-  external set onicecandidate(EventHandler value);
+  external set onnegotiationneeded(EventHandler value);
   external EventHandler get onicecandidate;
-  external set onicecandidateerror(EventHandler value);
+  external set onicecandidate(EventHandler value);
   external EventHandler get onicecandidateerror;
-  external set onsignalingstatechange(EventHandler value);
+  external set onicecandidateerror(EventHandler value);
   external EventHandler get onsignalingstatechange;
-  external set oniceconnectionstatechange(EventHandler value);
+  external set onsignalingstatechange(EventHandler value);
   external EventHandler get oniceconnectionstatechange;
-  external set onicegatheringstatechange(EventHandler value);
+  external set oniceconnectionstatechange(EventHandler value);
   external EventHandler get onicegatheringstatechange;
-  external set onconnectionstatechange(EventHandler value);
+  external set onicegatheringstatechange(EventHandler value);
   external EventHandler get onconnectionstatechange;
-  external set ontrack(EventHandler value);
+  external set onconnectionstatechange(EventHandler value);
   external EventHandler get ontrack;
+  external set ontrack(EventHandler value);
+
+  /// The read-only **`sctp`** property on the [RTCPeerConnection] interface
+  /// returns an [RTCSctpTransport] describing the  transport over which SCTP
+  /// data is being sent and
+  /// received.
+  /// If SCTP hasn't been negotiated, this value is `null`.
+  ///
+  /// The SCTP transport is used for transmitting and receiving data for any and
+  /// all [RTCDataChannel]s on the peer connection.
   external RTCSctpTransport? get sctp;
-  external set ondatachannel(EventHandler value);
   external EventHandler get ondatachannel;
+  external set ondatachannel(EventHandler value);
 }
 
 /// The **`RTCSessionDescription`** interface describes one end of a
@@ -472,7 +662,13 @@ extension type RTCSessionDescription._(JSObject _) implements JSObject {
   /// [RTCSessionDescription.type] and
   /// [RTCSessionDescription.sdp], are contained in the generated JSON.
   external JSObject toJSON();
+
+  /// The property **`RTCSessionDescription.type`** is a read-only
+  /// string value which describes the description's type.
   external RTCSdpType get type;
+
+  /// The property **`RTCSessionDescription.sdp`** is a read-only
+  /// string containing the  which describes the session.
   external String get sdp;
 }
 extension type RTCSessionDescriptionInit._(JSObject _) implements JSObject {
@@ -481,10 +677,10 @@ extension type RTCSessionDescriptionInit._(JSObject _) implements JSObject {
     String sdp,
   });
 
-  external set type(RTCSdpType value);
   external RTCSdpType get type;
-  external set sdp(String value);
+  external set type(RTCSdpType value);
   external String get sdp;
+  external set sdp(String value);
 }
 extension type RTCLocalSessionDescriptionInit._(JSObject _)
     implements JSObject {
@@ -493,10 +689,10 @@ extension type RTCLocalSessionDescriptionInit._(JSObject _)
     String sdp,
   });
 
-  external set type(RTCSdpType value);
   external RTCSdpType get type;
-  external set sdp(String value);
+  external set type(RTCSdpType value);
   external String get sdp;
+  external set sdp(String value);
 }
 
 /// The **`RTCIceCandidate`** interface—part of the
@@ -530,19 +726,193 @@ extension type RTCIceCandidate._(JSObject _) implements JSObject {
   /// A stringified version of the object can then be obtained by calling
   /// `stringify()` on the returned object.
   external RTCIceCandidateInit toJSON();
+
+  /// The read-only property **`candidate`** on the [RTCIceCandidate] interface
+  /// returns a string describing the candidate in detail.
+  /// Most of the other properties of `RTCIceCandidate` are actually extracted
+  /// from this string.
+  ///
+  /// This property can be configured using the `candidate` property of the
+  /// object passed into the [RTCIceCandidate.RTCIceCandidate] or
+  /// [RTCPeerConnection.addIceCandidate].
   external String get candidate;
+
+  /// The read-only property **`sdpMid`** on the [RTCIceCandidate] interface
+  /// returns a string
+  /// specifying the media stream identification tag of the media component with
+  /// which the candidate is associated.
+  /// This ID uniquely identifies a given stream for the component with which
+  /// the candidate is associated.
+  ///
+  /// This property can be configured by specifying the value of the `sdpMid`
+  /// property in the `candidateInfo` options object that is passed to the
+  /// [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// If you call the constructor with an m-line string instead of the options
+  /// object, the value of `sdpMid` is extracted from the specified candidate
+  /// m-line string.
   external String? get sdpMid;
+
+  /// The read-only **`sdpMLineIndex`** property on the [RTCIceCandidate]
+  /// interface
+  /// is a zero-based index of the m-line describing the media associated with
+  /// the candidate.
+  ///
+  /// This property can be configured by specifying the value of the
+  /// `sdpMLineIndex` property in the `candidateInfo` options object that is
+  /// passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// If you call the constructor with an m-line string instead of the options
+  /// object, the value of `sdpMLineIndex` is extracted from the specified
+  /// candidate m-line string.
   external int? get sdpMLineIndex;
+
+  /// The **[RTCIceCandidate]**
+  /// interface's read-only **`foundation`** property is a string
+  /// which uniquely identifies the candidate across multiple transports.
+  ///
+  /// The `foundation` can therefore be used to correlate candidates that are
+  /// present on
+  /// multiple [RTCIceTransport] objects
   external String? get foundation;
+
+  /// The read-only **`component`** property
+  /// on the [RTCIceCandidate] interface is a string which indicates whether
+  /// the candidate is an
+  /// [RTP](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Intro_to_RTP)
+  /// or
+  /// an RTCP candidate.
+  ///
+  /// If a candidate represents both RTP and RTCP multiplexed together, it is
+  /// reported as an
+  /// RTP candidate.
   external RTCIceComponent? get component;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`priority`** property
+  /// specifies the candidate's priority according to the remote peer; the
+  /// higher this value is, the better the remote peer considers the candidate
+  /// to be.
+  ///
+  /// The `priority` field's value is set from the `candidateInfo` options
+  /// object passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `priority` directly in the options object,
+  /// but its value is automatically extracted from the object's `candidate`
+  /// a-line, if it's formatted properly.
   external int? get priority;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`address`** property is
+  /// a string providing the IP address of the device which is the source of the
+  /// candidate.
+  /// The `address` is `null` by default if not otherwise specified.
+  ///
+  /// The `address` field's value is set from the `candidateInfo` options object
+  /// passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `address` directly in the options object,
+  /// but its value is automatically extracted from the object's `candidate`
+  /// a-line, if it's formatted properly.
   external String? get address;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`protocol`** property is
+  /// a string
+  /// which indicates whether the candidate uses  or  as its transport protocol.
+  ///
+  /// The `protocol` field's value is set from the `candidateInfo` options
+  /// object passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `protocol` directly in the options object,
+  /// but its value is automatically extracted from the object's `candidate`
+  /// a-line, if it's formatted properly.
+  ///
+  /// `protocol` is `null` by default if not specified properly in the SDP, but
+  /// this is an error condition and will result in a thrown exception when you
+  /// call [RTCPeerConnection.addIceCandidate].
   external RTCIceProtocol? get protocol;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`port`** property
+  /// contains the port
+  /// number on the device at the address given by [RTCIceCandidate.address] at
+  /// which the candidate's peer can be reached.
+  ///
+  /// The `port` field's value is set from the `candidateInfo` options object
+  /// passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `port` directly in the options object, but
+  /// its value is automatically extracted from the object's `candidate` a-line,
+  /// if it's formatted properly.
   external int? get port;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`type`** specifies the
+  /// type of candidate the object represents.
+  ///
+  /// The `type` field's value is set from the `candidateInfo` options object
+  /// passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `type` directly in the options object, but
+  /// its value is automatically extracted from the object's `candidate` a-line
+  /// (the `cand-type` field), if it's formatted properly.
   external RTCIceCandidateType? get type;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`tcpType`** property is
+  /// included on TCP candidates to provide additional details about the
+  /// candidate type.
+  ///
+  /// The `tcpType` field's value is set from the `candidateInfo` options object
+  /// passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `tcpType` directly in the options object,
+  /// but its value is automatically extracted from the object's `candidate`
+  /// a-line, if it's formatted properly.
   external RTCIceTcpCandidateType? get tcpType;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`relatedAddress`**
+  /// property is a
+  /// string indicating the **related address** of a relay or reflexive
+  /// candidate.
+  ///
+  /// If the candidate is a host candidate (that is, its
+  /// [RTCIceCandidate.address] is in fact the real IP address of the remote
+  /// peer), `relatedAddress` is `null`.
+  ///
+  /// The `relatedAddress` field's value is set from the `candidateInfo` options
+  /// object passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `relatedAddress` directly in the options
+  /// object, but its value is automatically extracted from the object's
+  /// `candidate` a-line if it's formatted properly(the `rel-address` field).
+  ///
+  /// The related address and port ([RTCIceCandidate.relatedPort]) are not used
+  /// at all by  itself; they are provided
+  /// for analysis and diagnostic purposes only, and their inclusion may be
+  /// blocked by security systems, so do not rely on them having non-`null`
+  /// values.
   external String? get relatedAddress;
+
+  /// The **[RTCIceCandidate]** interface's read-only **`relatedPort`** property
+  /// indicates the port number of reflexive or relay candidates.
+  ///
+  /// If the candidate is a host candidate (that is, its
+  /// [RTCIceCandidate.address] is in fact the real IP address of the remote
+  /// peer), `relatedPort` is `null`.
+  ///
+  /// The `relatedPort` field's value is set from the `candidateInfo` options
+  /// object passed to the [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// You can't specify the value of `relatedPort` directly in the options
+  /// object, but its value is automatically extracted from the object's
+  /// `candidate` a-line, if it's formatted properly (the `rel-port` field).
+  ///
+  /// The related address ([RTCIceCandidate.relatedAddress]) and port are not
+  /// used at all by  itself; they are provided for
+  /// analysis and diagnostic purposes only, and their inclusion may be blocked
+  /// by security systems, so do not rely on them having non-`null` values.
   external int? get relatedPort;
+
+  /// The read-only **`usernameFragment`** property on the [RTCIceCandidate]
+  /// interface is a string indicating the
+  /// username fragment ("ufrag") that uniquely identifies a single ICE
+  /// interaction session.
+  ///
+  /// This value is specified using the `usernameFragment` property in the
+  /// `candidateInfo` options object that is passed to the
+  /// [RTCIceCandidate.RTCIceCandidate] constructor.
+  /// If you call the constructor with an m-line string instead of the options
+  /// object, the value of `usernameFragment` is extracted from the specified
+  /// candidate m-line string.
+  ///
+  /// Note that 24 bits of the username fragment are required to be randomized
+  /// by the browser. See [Randomization](#randomization) below for details.
   external String? get usernameFragment;
   external RTCIceServerTransportProtocol? get relayProtocol;
   external String? get url;
@@ -555,14 +925,14 @@ extension type RTCIceCandidateInit._(JSObject _) implements JSObject {
     String? usernameFragment,
   });
 
-  external set candidate(String value);
   external String get candidate;
-  external set sdpMid(String? value);
+  external set candidate(String value);
   external String? get sdpMid;
-  external set sdpMLineIndex(int? value);
+  external set sdpMid(String? value);
   external int? get sdpMLineIndex;
-  external set usernameFragment(String? value);
+  external set sdpMLineIndex(int? value);
   external String? get usernameFragment;
+  external set usernameFragment(String? value);
 }
 
 /// The **`RTCPeerConnectionIceEvent`** interface represents events that occur
@@ -581,6 +951,9 @@ extension type RTCPeerConnectionIceEvent._(JSObject _)
     RTCPeerConnectionIceEventInit eventInitDict,
   ]);
 
+  /// The read-only **`candidate`** property
+  /// of the [RTCPeerConnectionIceEvent] interface returns the
+  /// [RTCIceCandidate] associated with the event.
   external RTCIceCandidate? get candidate;
   external String? get url;
 }
@@ -594,10 +967,10 @@ extension type RTCPeerConnectionIceEventInit._(JSObject _)
     String? url,
   });
 
-  external set candidate(RTCIceCandidate? value);
   external RTCIceCandidate? get candidate;
-  external set url(String? value);
+  external set candidate(RTCIceCandidate? value);
   external String? get url;
+  external set url(String? value);
 }
 
 /// The **`RTCPeerConnectionIceErrorEvent`** interface—based upon the [Event]
@@ -616,6 +989,10 @@ extension type RTCPeerConnectionIceErrorEvent._(JSObject _)
     RTCPeerConnectionIceErrorEventInit eventInitDict,
   );
 
+  /// The [RTCPeerConnectionIceErrorEvent] property
+  /// **`address`** is a string which indicates the local IP address
+  /// being used to communicate with the  or  server
+  /// during negotiations. The error which occurred involved this address.
   external String? get address;
   external int? get port;
   external String get url;
@@ -635,22 +1012,22 @@ extension type RTCPeerConnectionIceErrorEventInit._(JSObject _)
     String errorText,
   });
 
-  external set address(String? value);
   external String? get address;
-  external set port(int? value);
+  external set address(String? value);
   external int? get port;
-  external set url(String value);
+  external set port(int? value);
   external String get url;
-  external set errorCode(int value);
+  external set url(String value);
   external int get errorCode;
-  external set errorText(String value);
+  external set errorCode(int value);
   external String get errorText;
+  external set errorText(String value);
 }
 extension type RTCCertificateExpiration._(JSObject _) implements JSObject {
   external factory RTCCertificateExpiration({int expires});
 
-  external set expires(int value);
   external int get expires;
+  external set expires(int value);
 }
 
 /// The **`RTCCertificate`** interface of the
@@ -676,6 +1053,15 @@ extension type RTCCertificate._(JSObject _) implements JSObject {
   /// fingerprint values for the set of algorithms supported by both client and
   /// server should match.
   external JSArray<RTCDtlsFingerprint> getFingerprints();
+
+  /// The read-only **`expires`** property of the [RTCCertificate] interface
+  /// returns the expiration date of the certificate.
+  ///
+  /// By default a new certificate is configured with `expires` set to a value
+  /// of 2592000000 milliseconds, or 30 days.
+  /// The expiration time cannot exceed 31536000000 milliseconds, or 365 days.
+  /// It's also useful to note that browsers may further restrict the expiration
+  /// time of certificates if they choose.
   external EpochTimeStamp get expires;
 }
 extension type RTCRtpTransceiverInit._(JSObject _) implements JSObject {
@@ -685,12 +1071,12 @@ extension type RTCRtpTransceiverInit._(JSObject _) implements JSObject {
     JSArray<RTCRtpEncodingParameters> sendEncodings,
   });
 
-  external set direction(RTCRtpTransceiverDirection value);
   external RTCRtpTransceiverDirection get direction;
-  external set streams(JSArray<MediaStream> value);
+  external set direction(RTCRtpTransceiverDirection value);
   external JSArray<MediaStream> get streams;
-  external set sendEncodings(JSArray<RTCRtpEncodingParameters> value);
+  external set streams(JSArray<MediaStream> value);
   external JSArray<RTCRtpEncodingParameters> get sendEncodings;
+  external set sendEncodings(JSArray<RTCRtpEncodingParameters> value);
 }
 
 /// The **`RTCRtpSender`** interface provides the ability to control and obtain
@@ -757,10 +1143,49 @@ extension type RTCRtpSender._(JSObject _) implements JSObject {
   /// on the [RTCPeerConnection] which owns the sender, returning a `Promise`
   /// which is fulfilled when the results are available.
   external JSPromise<RTCStatsReport> getStats();
-  external set transform(RTCRtpTransform? value);
+
+  /// The **`transform`** property of the [RTCRtpSender] object is used to
+  /// insert a transform stream ([TransformStream]) running in a worker thread
+  /// into the sender pipeline.
+  /// This allows stream transforms to be applied to encoded video and audio
+  /// frames after they are output by a codec, and before they are sent.
+  ///
+  /// The transform that is to be added is defined using an
+  /// [RTCRtpScriptTransform] and its associated [Worker].
+  /// If the transform is set synchronously immediately after creating the
+  /// `RTCRtpSender` it will receive the first full frame generated by the
+  /// sender's encoder.
+  ///
+  /// ### Value
+  ///
+  /// A [RTCRtpScriptTransform]<!-- or [SFrameTransform] -->, or `null` if the
+  /// sender has no associated transform stream.
   external RTCRtpTransform? get transform;
+  external set transform(RTCRtpTransform? value);
+
+  /// The **`track`** read-only property of
+  /// the [RTCRtpSender] interface returns the [MediaStreamTrack]
+  /// which is being handled by the `RTCRtpSender`.
   external MediaStreamTrack? get track;
+
+  /// The read-only **`transport`** property of an
+  /// [RTCRtpSender] object provides the [RTCDtlsTransport] object
+  /// used to interact with the underlying transport over which the sender is
+  /// exchanging
+  /// Real-time Transport Control Protocol () packets.
+  ///
+  /// This transport is responsible for receiving the data for the media on the
+  /// sender's
+  /// [RTCRtpReceiver.track].
   external RTCDtlsTransport? get transport;
+
+  /// The read-only **`dtmf`** property on the
+  /// **[RTCRtpSender]** interface returns a
+  /// [RTCDTMFSender] object which can be used to send  tones
+  /// over the [RTCPeerConnection]. See
+  /// [Using DTMF](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Using_DTMF)
+  /// for details on how to
+  /// make use of the returned `RTCDTMFSender` object.
   external RTCDTMFSender? get dtmf;
 }
 extension type RTCRtpParameters._(JSObject _) implements JSObject {
@@ -770,12 +1195,12 @@ extension type RTCRtpParameters._(JSObject _) implements JSObject {
     required JSArray<RTCRtpCodecParameters> codecs,
   });
 
-  external set headerExtensions(JSArray<RTCRtpHeaderExtensionParameters> value);
   external JSArray<RTCRtpHeaderExtensionParameters> get headerExtensions;
-  external set rtcp(RTCRtcpParameters value);
+  external set headerExtensions(JSArray<RTCRtpHeaderExtensionParameters> value);
   external RTCRtcpParameters get rtcp;
-  external set codecs(JSArray<RTCRtpCodecParameters> value);
+  external set rtcp(RTCRtcpParameters value);
   external JSArray<RTCRtpCodecParameters> get codecs;
+  external set codecs(JSArray<RTCRtpCodecParameters> value);
 }
 extension type RTCRtpSendParameters._(JSObject _)
     implements RTCRtpParameters, JSObject {
@@ -787,10 +1212,10 @@ extension type RTCRtpSendParameters._(JSObject _)
     required JSArray<RTCRtpEncodingParameters> encodings,
   });
 
-  external set transactionId(String value);
   external String get transactionId;
-  external set encodings(JSArray<RTCRtpEncodingParameters> value);
+  external set transactionId(String value);
   external JSArray<RTCRtpEncodingParameters> get encodings;
+  external set encodings(JSArray<RTCRtpEncodingParameters> value);
 }
 extension type RTCRtpReceiveParameters._(JSObject _)
     implements RTCRtpParameters, JSObject {
@@ -803,8 +1228,8 @@ extension type RTCRtpReceiveParameters._(JSObject _)
 extension type RTCRtpCodingParameters._(JSObject _) implements JSObject {
   external factory RTCRtpCodingParameters({String rid});
 
-  external set rid(String value);
   external String get rid;
+  external set rid(String value);
 }
 extension type RTCRtpEncodingParameters._(JSObject _)
     implements RTCRtpCodingParameters, JSObject {
@@ -816,14 +1241,14 @@ extension type RTCRtpEncodingParameters._(JSObject _)
     num scaleResolutionDownBy,
   });
 
-  external set active(bool value);
   external bool get active;
-  external set maxBitrate(int value);
+  external set active(bool value);
   external int get maxBitrate;
-  external set maxFramerate(num value);
+  external set maxBitrate(int value);
   external num get maxFramerate;
-  external set scaleResolutionDownBy(num value);
+  external set maxFramerate(num value);
   external num get scaleResolutionDownBy;
+  external set scaleResolutionDownBy(num value);
 }
 extension type RTCRtcpParameters._(JSObject _) implements JSObject {
   external factory RTCRtcpParameters({
@@ -831,10 +1256,10 @@ extension type RTCRtcpParameters._(JSObject _) implements JSObject {
     bool reducedSize,
   });
 
-  external set cname(String value);
   external String get cname;
-  external set reducedSize(bool value);
+  external set cname(String value);
   external bool get reducedSize;
+  external set reducedSize(bool value);
 }
 extension type RTCRtpHeaderExtensionParameters._(JSObject _)
     implements JSObject {
@@ -844,12 +1269,12 @@ extension type RTCRtpHeaderExtensionParameters._(JSObject _)
     bool encrypted,
   });
 
-  external set uri(String value);
   external String get uri;
-  external set id(int value);
+  external set uri(String value);
   external int get id;
-  external set encrypted(bool value);
+  external set id(int value);
   external bool get encrypted;
+  external set encrypted(bool value);
 }
 extension type RTCRtpCodec._(JSObject _) implements JSObject {
   external factory RTCRtpCodec({
@@ -859,14 +1284,14 @@ extension type RTCRtpCodec._(JSObject _) implements JSObject {
     String sdpFmtpLine,
   });
 
-  external set mimeType(String value);
   external String get mimeType;
-  external set clockRate(int value);
+  external set mimeType(String value);
   external int get clockRate;
-  external set channels(int value);
+  external set clockRate(int value);
   external int get channels;
-  external set sdpFmtpLine(String value);
+  external set channels(int value);
   external String get sdpFmtpLine;
+  external set sdpFmtpLine(String value);
 }
 
 /// The [RTCRtpCodecParameters] dictionary, part of the WebRTC API, is used to
@@ -897,8 +1322,8 @@ extension type RTCRtpCodecParameters._(JSObject _)
     required int payloadType,
   });
 
-  external set payloadType(int value);
   external int get payloadType;
+  external set payloadType(int value);
 }
 extension type RTCRtpCapabilities._(JSObject _) implements JSObject {
   external factory RTCRtpCapabilities({
@@ -906,10 +1331,10 @@ extension type RTCRtpCapabilities._(JSObject _) implements JSObject {
     required JSArray<RTCRtpHeaderExtensionCapability> headerExtensions,
   });
 
-  external set codecs(JSArray<RTCRtpCodecCapability> value);
   external JSArray<RTCRtpCodecCapability> get codecs;
-  external set headerExtensions(JSArray<RTCRtpHeaderExtensionCapability> value);
+  external set codecs(JSArray<RTCRtpCodecCapability> value);
   external JSArray<RTCRtpHeaderExtensionCapability> get headerExtensions;
+  external set headerExtensions(JSArray<RTCRtpHeaderExtensionCapability> value);
 }
 extension type RTCRtpCodecCapability._(JSObject _)
     implements RTCRtpCodec, JSObject {
@@ -924,8 +1349,8 @@ extension type RTCRtpHeaderExtensionCapability._(JSObject _)
     implements JSObject {
   external factory RTCRtpHeaderExtensionCapability({required String uri});
 
-  external set uri(String value);
   external String get uri;
+  external set uri(String value);
 }
 extension type RTCSetParameterOptions._(JSObject _) implements JSObject {
   RTCSetParameterOptions() : _ = JSObject();
@@ -965,9 +1390,42 @@ extension type RTCRtpReceiver._(JSObject _) implements JSObject {
   /// on the owning [RTCPeerConnection], returning a `Promise` whose fulfillment
   /// handler will be called once the results are available.
   external JSPromise<RTCStatsReport> getStats();
-  external set transform(RTCRtpTransform? value);
+
+  /// The **`transform`** property of the [RTCRtpReceiver] object is used to
+  /// insert a transform stream ([TransformStream]) running in a worker thread
+  /// into the receiver pipeline.
+  /// This allows stream transforms to be applied to encoded video and audio
+  /// frames as they arrive from the packetizer (before they are
+  /// played/rendered).
+  ///
+  /// The transform that is to be added is defined using an
+  /// [RTCRtpScriptTransform] and its associated [Worker].
+  /// If the transform is set in the peer connection
+  /// [`track` event](https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/track_event)
+  /// handler, the transform stream will receive the first full incoming frame
+  /// for the track.
+  ///
+  /// ### Value
+  ///
+  /// A [RTCRtpScriptTransform]<!-- or [SFrameTransform] -->, or `null` if the
+  /// receiver has no associated transform stream.
   external RTCRtpTransform? get transform;
+  external set transform(RTCRtpTransform? value);
+
+  /// The **`track`** read-only property of the
+  /// [RTCRtpReceiver] interface returns the [MediaStreamTrack]
+  /// associated with the current [RTCRtpReceiver] instance.
   external MediaStreamTrack get track;
+
+  /// The read-only **`transport`** property of an
+  /// [RTCRtpReceiver] object provides the [RTCDtlsTransport] object
+  /// used to interact with the underlying transport over which the receiver is
+  /// exchanging
+  /// Real-time Transport Control Protocol () packets.
+  ///
+  /// This transport is responsible for receiving the data for the media on the
+  /// receiver's
+  /// [RTCRtpReceiver.track].
   external RTCDtlsTransport? get transport;
 }
 extension type RTCRtpContributingSource._(JSObject _) implements JSObject {
@@ -978,14 +1436,14 @@ extension type RTCRtpContributingSource._(JSObject _) implements JSObject {
     required int rtpTimestamp,
   });
 
-  external set timestamp(DOMHighResTimeStamp value);
   external DOMHighResTimeStamp get timestamp;
-  external set source(int value);
+  external set timestamp(DOMHighResTimeStamp value);
   external int get source;
-  external set audioLevel(num value);
+  external set source(int value);
   external num get audioLevel;
-  external set rtpTimestamp(int value);
+  external set audioLevel(num value);
   external int get rtpTimestamp;
+  external set rtpTimestamp(int value);
 }
 extension type RTCRtpSynchronizationSource._(JSObject _)
     implements RTCRtpContributingSource, JSObject {
@@ -1039,11 +1497,49 @@ extension type RTCRtpTransceiver._(JSObject _) implements JSObject {
   /// negative characteristics—can be found in
   /// [Codecs used by WebRTC](https://developer.mozilla.org/en-US/docs/Web/Media/Formats/WebRTC_codecs).
   external void setCodecPreferences(JSArray<RTCRtpCodecCapability> codecs);
+
+  /// The read-only [RTCRtpTransceiver] interface's
+  /// **`mid`** property specifies the negotiated media ID
+  /// (`mid`) which the local and remote peers have agreed upon to uniquely
+  /// identify the stream's pairing of sender and receiver.
   external String? get mid;
+
+  /// The read-only **`sender`** property
+  /// of WebRTC's [RTCRtpTransceiver] interface indicates the
+  /// [RTCRtpSender] responsible for encoding and sending outgoing media data
+  /// for the transceiver's stream.
   external RTCRtpSender get sender;
+
+  /// The read-only **`receiver`** property
+  /// of WebRTC's [RTCRtpTransceiver] interface indicates the
+  /// [RTCRtpReceiver] responsible for receiving and decoding incoming media
+  /// data for the transceiver's stream.
   external RTCRtpReceiver get receiver;
-  external set direction(RTCRtpTransceiverDirection value);
+
+  /// The [RTCRtpTransceiver] property **`direction`** is a string that
+  /// indicates the transceiver's _preferred_ directionality.
+  ///
+  /// The directionality indicates whether the transceiver will offer to send
+  /// and/or receive  data, or whether it is inactive or stopped (terminated).
+  /// When setting the transceiver's direction, the value is not applied
+  /// immediately.
+  /// The _current_ direction is indicated by the
+  /// [RTCRtpTransceiver.currentDirection] property.
   external RTCRtpTransceiverDirection get direction;
+  external set direction(RTCRtpTransceiverDirection value);
+
+  /// The read-only [RTCRtpTransceiver] property **`currentDirection`** is a
+  /// string which indicates the current negotiated directionality of the
+  /// transceiver.
+  ///
+  /// The directionality indicates whether the transceiver will offer to send
+  /// and/or receive  data, or whether it is inactive or stopped and won't send
+  /// or receive data.
+  ///
+  /// The transceiver's preferred directionality can be set and read using the
+  /// [RTCRtpTransceiver.direction] property.
+  /// Changing the `direction` triggers a renegotiation, which may eventually
+  /// result in the `currentDirection` also changing.
   external RTCRtpTransceiverDirection? get currentDirection;
 }
 
@@ -1067,12 +1563,20 @@ extension type RTCRtpTransceiver._(JSObject _) implements JSObject {
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/RTCDtlsTransport).
 extension type RTCDtlsTransport._(JSObject _) implements EventTarget, JSObject {
   external JSArray<JSArrayBuffer> getRemoteCertificates();
+
+  /// The read-only **[RTCDtlsTransport]**
+  /// property **`iceTransport`** contains a reference
+  /// to the underlying [RTCIceTransport].
   external RTCIceTransport get iceTransport;
+
+  /// The **`state`** read-only property of the
+  /// [RTCDtlsTransport] interface provides information which describes a
+  /// Datagram Transport Layer Security (****) transport state.
   external RTCDtlsTransportState get state;
-  external set onstatechange(EventHandler value);
   external EventHandler get onstatechange;
-  external set onerror(EventHandler value);
+  external set onstatechange(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
 }
 extension type RTCDtlsFingerprint._(JSObject _) implements JSObject {
   external factory RTCDtlsFingerprint({
@@ -1080,10 +1584,10 @@ extension type RTCDtlsFingerprint._(JSObject _) implements JSObject {
     String value,
   });
 
-  external set algorithm(String value);
   external String get algorithm;
-  external set value(String value);
+  external set algorithm(String value);
   external String get value;
+  external set value(String value);
 }
 
 /// The **`RTCIceTransport`** interface provides access to information about the
@@ -1148,16 +1652,42 @@ extension type RTCIceTransport._(JSObject _) implements EventTarget, JSObject {
   /// transport when the client calls
   /// [RTCPeerConnection.setRemoteDescription].
   external RTCIceParameters? getRemoteParameters();
+
+  /// The read-only **[RTCIceTransport]**
+  /// property **`role`** indicates which  role
+  /// the transport is fulfilling: that of the controlling agent, or the agent
+  /// that is being
+  /// controlled.
+  ///
+  /// You can learn more about ICE roles in
+  /// [Choosing a candidate pair](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Connectivity#choosing_a_candidate_pair).
   external RTCIceRole get role;
+
+  /// The read-only **[RTCIceTransport]**
+  /// property **`component`** specifies whether the object is
+  /// serving to transport  or .
   external RTCIceComponent get component;
+
+  /// The read-only **[RTCIceTransport]**
+  /// property **`state`** returns the current state of the ICE
+  /// transport, so you can determine the state of ICE gathering in which the
+  /// ICE agent
+  /// currently is operating.
+  ///
+  /// This differs from the [RTCIceTransport.gatheringState],
+  /// which only indicates whether or not ICE gathering is currently underway.
   external RTCIceTransportState get state;
+
+  /// The read-only property **`gatheringState`** property of the
+  /// [RTCIceTransport] interface returns a string that indicates the current
+  /// gathering state of the ICE agent: `"new"`, `"gathering"`, or `"complete"`.
   external RTCIceGathererState get gatheringState;
-  external set onstatechange(EventHandler value);
   external EventHandler get onstatechange;
-  external set ongatheringstatechange(EventHandler value);
+  external set onstatechange(EventHandler value);
   external EventHandler get ongatheringstatechange;
-  external set onselectedcandidatepairchange(EventHandler value);
+  external set ongatheringstatechange(EventHandler value);
   external EventHandler get onselectedcandidatepairchange;
+  external set onselectedcandidatepairchange(EventHandler value);
 }
 
 /// The **`RTCIceParameters`** dictionary specifies the username fragment and
@@ -1179,10 +1709,21 @@ extension type RTCIceParameters._(JSObject _) implements JSObject {
     String password,
   });
 
-  external set usernameFragment(String value);
+  /// The **[RTCIceParameters]** dictionary's
+  /// **`usernameFragment`** property specifies the username fragment
+  /// ("ufrag") that uniquely identifies the corresponding ICE session for the
+  /// duration of the
+  /// current ICE session.
   external String get usernameFragment;
-  external set password(String value);
+  external set usernameFragment(String value);
+
+  /// The **[RTCIceParameters]**
+  /// dictionary's **`password`** property specifies the ICE
+  /// password that, in tandem with the [RTCIceParameters.usernameFragment],
+  /// uniquely identifies an ICE session for its entire
+  /// duration.
   external String get password;
+  external set password(String value);
 }
 
 /// The **`RTCIceCandidatePair`** dictionary describes a pair of ICE candidates
@@ -1201,10 +1742,19 @@ extension type RTCIceCandidatePair._(JSObject _) implements JSObject {
     RTCIceCandidate remote,
   });
 
-  external set local(RTCIceCandidate value);
+  /// The **`local`** property of the
+  /// **[RTCIceCandidatePair]** dictionary specifies the
+  /// [RTCIceCandidate] which describes the configuration of the local end of a
+  /// viable WebRTC connection.
   external RTCIceCandidate get local;
-  external set remote(RTCIceCandidate value);
+  external set local(RTCIceCandidate value);
+
+  /// The **`remote`** property of the
+  /// **[RTCIceCandidatePair]** dictionary specifies the
+  /// [RTCIceCandidate] describing the configuration of the remote end of a
+  /// viable WebRTC connection.
   external RTCIceCandidate get remote;
+  external set remote(RTCIceCandidate value);
 }
 
 /// The
@@ -1229,9 +1779,34 @@ extension type RTCTrackEvent._(JSObject _) implements Event, JSObject {
     RTCTrackEventInit eventInitDict,
   );
 
+  /// The read-only **`receiver`** property
+  /// of the [RTCTrackEvent] interface indicates the
+  /// [RTCRtpReceiver] which is used to receive data containing media for the
+  /// [RTCTrackEvent.track] to which the event refers.
   external RTCRtpReceiver get receiver;
+
+  /// The
+  /// [WebRTC API](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// interface [RTCTrackEvent]'s read-only **`track`**
+  /// property specifies the [MediaStreamTrack] that has been added to the
+  /// [RTCPeerConnection].
   external MediaStreamTrack get track;
+
+  /// The
+  /// [WebRTC API](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)
+  /// interface [RTCTrackEvent]'s read-only
+  /// **`streams`** property specifies an array of
+  /// [MediaStream] objects, one for each of the streams that comprise the
+  /// track being added to the [RTCPeerConnection].
   external JSArray<MediaStream> get streams;
+
+  /// The WebRTC API interface [RTCTrackEvent]'s
+  /// read-only **`transceiver`** property indicates the
+  /// [RTCRtpTransceiver] affiliated with the event's
+  /// [RTCTrackEvent.track].
+  ///
+  /// The transceiver pairs the track's
+  /// [RTCTrackEvent.receiver] with an [RTCRtpSender].
   external RTCRtpTransceiver get transceiver;
 }
 extension type RTCTrackEventInit._(JSObject _) implements EventInit, JSObject {
@@ -1245,14 +1820,14 @@ extension type RTCTrackEventInit._(JSObject _) implements EventInit, JSObject {
     required RTCRtpTransceiver transceiver,
   });
 
-  external set receiver(RTCRtpReceiver value);
   external RTCRtpReceiver get receiver;
-  external set track(MediaStreamTrack value);
+  external set receiver(RTCRtpReceiver value);
   external MediaStreamTrack get track;
-  external set streams(JSArray<MediaStream> value);
+  external set track(MediaStreamTrack value);
   external JSArray<MediaStream> get streams;
-  external set transceiver(RTCRtpTransceiver value);
+  external set streams(JSArray<MediaStream> value);
   external RTCRtpTransceiver get transceiver;
+  external set transceiver(RTCRtpTransceiver value);
 }
 
 /// The **`RTCSctpTransport`** interface provides information which describes a
@@ -1276,12 +1851,27 @@ extension type RTCTrackEventInit._(JSObject _) implements EventInit, JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/RTCSctpTransport).
 extension type RTCSctpTransport._(JSObject _) implements EventTarget, JSObject {
+  /// The **`transport`** read-only property of the [RTCSctpTransport] interface
+  /// returns a [RTCDtlsTransport] object representing the  transport used for
+  /// the transmission and receipt of data packets.
   external RTCDtlsTransport get transport;
+
+  /// The **`state`** read-only property of the [RTCSctpTransport] interface
+  /// provides information which describes a Stream Control Transmission
+  /// Protocol () transport state.
   external RTCSctpTransportState get state;
+
+  /// The **`maxMessageSize`** read-only property of the [RTCSctpTransport]
+  /// interface indicates the maximum size of a message that can be sent using
+  /// the [RTCDataChannel.send] method.
   external num get maxMessageSize;
+
+  /// The **`maxChannels`** read-only property of the [RTCSctpTransport]
+  /// interface indicates the maximum number of [RTCDataChannel] objects that
+  /// can be opened simultaneously.
   external int? get maxChannels;
-  external set onstatechange(EventHandler value);
   external EventHandler get onstatechange;
+  external set onstatechange(EventHandler value);
 }
 
 /// The **`RTCDataChannel`** interface represents a network channel which can be
@@ -1357,31 +1947,186 @@ extension type RTCDataChannel._(JSObject _) implements EventTarget, JSObject {
   /// > questions, see
   /// > [Understanding message size limits](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Using_data_channels#understanding_message_size_limits).
   external void send(JSAny data);
+
+  /// The read-only `RTCDataChannel` property **`label`**
+  /// returns a string containing a name describing the data channel. These
+  /// labels are not required to be unique.
+  ///
+  /// You may use the label as you wish; you could use it to identify all the
+  /// channels that
+  /// are being used for the same purpose, by giving them all the same name. Or
+  /// you could give
+  /// each channel a unique label for tracking purposes. It's entirely up to the
+  /// design
+  /// decisions made when building your site or app.
+  ///
+  /// A unique ID can be found in the [RTCDataChannel.id] property.
+  ///
+  /// > **Note:** A data channel's label is set when the channel is created by
+  /// > calling
+  /// > [RTCPeerConnection.createDataChannel]. It cannot be changed after that.
   external String get label;
+
+  /// The read-only `RTCDataChannel` property **`ordered`** indicates
+  /// whether or not the data channel guarantees in-order delivery of messages;
+  /// the default is `true`,
+  /// which indicates that the data channel is indeed ordered.
+  /// This is set when the [RTCDataChannel] is created,
+  /// by setting the `ordered` property
+  /// on the object passed as [RTCPeerConnection.createDataChannel]'s `options`
+  /// parameter.
   external bool get ordered;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`maxPacketLifeTime`** returns the amount of time, in
+  /// milliseconds, the browser is allowed to take to attempt to transmit a
+  /// message, as set
+  /// when the data channel was created, or `null`. This limits how long
+  /// the browser can continue to attempt to transmit and retransmit the message
+  /// before giving
+  /// up.
   external int? get maxPacketLifeTime;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`maxRetransmits`** returns the maximum number of times the
+  /// browser should try to retransmit a message before giving up, as set when
+  /// the data
+  /// channel was created, or `null`, which indicates that there is no
+  /// maximum. This can only be set when the [RTCDataChannel] is created
+  /// by calling [RTCPeerConnection.createDataChannel], using the
+  /// `maxRetransmits` field in the specified `options`.
   external int? get maxRetransmits;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`protocol`** returns a string containing the
+  /// name of the subprotocol in use. If no protocol was specified when the data
+  /// channel was
+  /// created, then this property's value is the empty string (`""`).
+  ///
+  /// > **Note:** The permitted values of this property are defined by the
+  /// > website or app using the
+  /// > data channel.
+  ///
+  /// The ability for each channel to have a defined subprotocol lets your app,
+  /// for example,
+  /// use JSON objects as messages on one channel while another channel is
+  /// plaintext and
+  /// another is raw binary or even some other format.
   external String get protocol;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`negotiated`** indicates whether the
+  /// [RTCDataChannel]'s connection was negotiated by the Web app
+  /// (`true`) or by the WebRTC layer (`false`). **The
+  /// default is `false`.**
+  ///
+  /// See
+  /// [Creating a data channel](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Using_data_channels#creating_a_data_channel)
+  /// for further information about this property.
   external bool get negotiated;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`id`** returns an ID number (between 0 and 65,534) which
+  /// uniquely identifies the [RTCDataChannel]. This ID is set at the
+  /// time the data channel is created, either by the user agent (if
+  /// [RTCDataChannel.negotiated] is `false`) or by the site or app
+  /// script (if `negotiated` is `true`).
+  ///
+  /// Each [RTCPeerConnection] can therefore have up to a theoretical maximum of
+  /// 65,534 data channels on it, although the actual maximum may vary from
+  /// browser to
+  /// browser.
   external int? get id;
+
+  /// The read-only `RTCDataChannel` property **`readyState`** returns a string
+  /// which indicates the state of the data channel's underlying data
+  /// connection.
   external RTCDataChannelState get readyState;
+
+  /// The read-only `RTCDataChannel` property
+  /// **`bufferedAmount`** returns the number of bytes of data
+  /// currently queued to be sent over the data channel. The queue may build up
+  /// as a
+  /// result of calls to the [RTCDataChannel.send] method. This only
+  /// includes data buffered by the user agent itself; it doesn't include any
+  /// framing overhead
+  /// or buffering done by the operating system or network hardware.
+  ///
+  /// The user agent may implement the process of actually sending data in any
+  /// way it
+  /// chooses; this may be done periodically during the event loop or truly
+  /// asynchronously. As
+  /// messages are actually sent, this value is reduced accordingly.
+  ///
+  /// > **Note:** Closing the data channel doesn't reset this count, even though
+  /// > the user agent purges
+  /// > the queued messages. However, even after closing the channel, attempts
+  /// > to send
+  /// > messages continue to add to the `bufferedAmount` value, even though the
+  /// > messages are neither sent nor buffered.
+  ///
+  /// Whenever this value decreases to fall to or below the value specified in
+  /// the
+  /// [RTCDataChannel.bufferedAmountLowThreshold]
+  /// property, the user agent fires the
+  /// [RTCDataChannel.bufferedamountlow_event] event. This event may
+  /// be used, for example, to implement code which queues more messages to be
+  /// sent whenever
+  /// there's room to buffer them.
   external int get bufferedAmount;
-  external set bufferedAmountLowThreshold(int value);
+
+  /// The `RTCDataChannel` property
+  /// **`bufferedAmountLowThreshold`** is used to specify the number
+  /// of bytes of buffered outgoing data that is considered "low." The default
+  /// value is
+  /// 0\. When the number of buffered outgoing bytes, as indicated by the
+  /// [RTCDataChannel.bufferedAmount] property, falls to or
+  /// below this value, a [RTCDataChannel.bufferedamountlow_event] event is
+  /// fired. This event may be
+  /// used, for example, to implement code which queues more messages to be sent
+  /// whenever
+  /// there's room to buffer them. Listeners may be added with
+  /// [RTCDataChannel.bufferedamountlow_event] or
+  /// [EventTarget.addEventListener].
+  ///
+  /// The user agent may implement the process of actually sending data in any
+  /// way it
+  /// chooses; this may be done periodically during the event loop or truly
+  /// asynchronously. As
+  /// messages are actually sent, this value is reduced accordingly.
+  ///
+  /// > **Note:** `bufferedamountlow` events are not fired after the data
+  /// > channel is closed.
   external int get bufferedAmountLowThreshold;
-  external set onopen(EventHandler value);
+  external set bufferedAmountLowThreshold(int value);
   external EventHandler get onopen;
-  external set onbufferedamountlow(EventHandler value);
+  external set onopen(EventHandler value);
   external EventHandler get onbufferedamountlow;
-  external set onerror(EventHandler value);
+  external set onbufferedamountlow(EventHandler value);
   external EventHandler get onerror;
-  external set onclosing(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onclosing;
-  external set onclose(EventHandler value);
+  external set onclosing(EventHandler value);
   external EventHandler get onclose;
-  external set onmessage(EventHandler value);
+  external set onclose(EventHandler value);
   external EventHandler get onmessage;
-  external set binaryType(BinaryType value);
+  external set onmessage(EventHandler value);
+
+  /// The property **`binaryType`** on the
+  /// [RTCDataChannel] interface is a string which specifies
+  /// the type of object which should be used to represent binary data received
+  /// on the [RTCDataChannel]. Values allowed by the
+  /// [WebSocket.binaryType] property are also permitted here:
+  /// `blob` if [Blob] objects are being used or
+  /// `arraybuffer` if `ArrayBuffer` objects are being used. The
+  /// default is `blob`.
+  ///
+  /// When a binary message is received on the data channel, the resulting
+  /// [RTCDataChannel.message_event] event's [MessageEvent.data] property is an
+  /// object of
+  /// the type specified by the `binaryType`.
   external BinaryType get binaryType;
+  external set binaryType(BinaryType value);
 }
 extension type RTCDataChannelInit._(JSObject _) implements JSObject {
   external factory RTCDataChannelInit({
@@ -1393,18 +2138,18 @@ extension type RTCDataChannelInit._(JSObject _) implements JSObject {
     int id,
   });
 
-  external set ordered(bool value);
   external bool get ordered;
-  external set maxPacketLifeTime(int value);
+  external set ordered(bool value);
   external int get maxPacketLifeTime;
-  external set maxRetransmits(int value);
+  external set maxPacketLifeTime(int value);
   external int get maxRetransmits;
-  external set protocol(String value);
+  external set maxRetransmits(int value);
   external String get protocol;
-  external set negotiated(bool value);
+  external set protocol(String value);
   external bool get negotiated;
-  external set id(int value);
+  external set negotiated(bool value);
   external int get id;
+  external set id(int value);
 }
 
 /// The **`RTCDataChannelEvent`** interface
@@ -1420,6 +2165,8 @@ extension type RTCDataChannelEvent._(JSObject _) implements Event, JSObject {
     RTCDataChannelEventInit eventInitDict,
   );
 
+  /// The read-only property **`RTCDataChannelEvent.channel`**
+  /// returns the [RTCDataChannel] associated with the event.
   external RTCDataChannel get channel;
 }
 extension type RTCDataChannelEventInit._(JSObject _)
@@ -1431,8 +2178,8 @@ extension type RTCDataChannelEventInit._(JSObject _)
     required RTCDataChannel channel,
   });
 
-  external set channel(RTCDataChannel value);
   external RTCDataChannel get channel;
+  external set channel(RTCDataChannel value);
 }
 
 /// The **`RTCDTMFSender`** interface provides a mechanism for transmitting
@@ -1480,9 +2227,17 @@ extension type RTCDTMFSender._(JSObject _) implements EventTarget, JSObject {
     int duration,
     int interToneGap,
   ]);
-  external set ontonechange(EventHandler value);
   external EventHandler get ontonechange;
+  external set ontonechange(EventHandler value);
   external bool get canInsertDTMF;
+
+  /// The [RTCDTMFSender] interface's toneBuffer property returns a string
+  /// containing a list of the  tones currently queued for sending to the
+  /// remote peer over the [RTCPeerConnection]. To place tones into the buffer,
+  /// call [RTCDTMFSender.insertDTMF].
+  ///
+  /// Tones are removed from the string as they're played, so only upcoming
+  /// tones are listed.
   external String get toneBuffer;
 }
 
@@ -1502,6 +2257,11 @@ extension type RTCDTMFToneChangeEvent._(JSObject _) implements Event, JSObject {
     RTCDTMFToneChangeEventInit eventInitDict,
   ]);
 
+  /// The read-only property **`RTCDTMFToneChangeEvent.tone`**
+  /// returns the DTMF character which has just begun to play, or an empty
+  /// string
+  /// (`""`). if all queued tones have finished playing (that is,
+  /// [RTCDTMFSender.toneBuffer] is empty).
   external String get tone;
 }
 extension type RTCDTMFToneChangeEventInit._(JSObject _)
@@ -1513,8 +2273,8 @@ extension type RTCDTMFToneChangeEventInit._(JSObject _)
     String tone,
   });
 
-  external set tone(String value);
   external String get tone;
+  external set tone(String value);
 }
 
 /// The **`RTCStatsReport`** interface of the
@@ -1540,12 +2300,12 @@ extension type RTCStats._(JSObject _) implements JSObject {
     required String id,
   });
 
-  external set timestamp(DOMHighResTimeStamp value);
   external DOMHighResTimeStamp get timestamp;
-  external set type(RTCStatsType value);
+  external set timestamp(DOMHighResTimeStamp value);
   external RTCStatsType get type;
-  external set id(String value);
+  external set type(RTCStatsType value);
   external String get id;
+  external set id(String value);
 }
 
 /// The **`RTCError`** interface describes an error which has occurred while
@@ -1564,10 +2324,32 @@ extension type RTCError._(JSObject _) implements DOMException, JSObject {
     String message,
   ]);
 
+  /// The [RTCError] interface's read-only
+  /// **`errorDetail`** property is a string indicating the
+  /// [WebRTC](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API)-specific
+  /// error code that occurred.
   external RTCErrorDetailType get errorDetail;
+
+  /// The [RTCError] interface's read-only property
+  /// **`sdpLineNumber`** specifies the line number within the
+  /// at which a syntax error occurred while parsing it.
   external int? get sdpLineNumber;
+
+  /// The read-only **`sctpCauseCode`** property in an
+  /// [RTCError] object provides the  cause code explaining
+  /// why the SCTP negotiation failed, if the `RTCError` represents an SCTP
+  /// error.
   external int? get sctpCauseCode;
+
+  /// The [RTCError] read-only property
+  /// **`receivedAlert`** specifies the fatal
+  /// error which resulted in an alert being received from the remote peer.
   external int? get receivedAlert;
+
+  /// The read-only **`sentAlert`** property in an
+  /// [RTCError] object specifies the  alert number occurred
+  /// while sending data to the remote peer, if the error represents an outbound
+  /// DTLS error.
   external int? get sentAlert;
 }
 extension type RTCErrorInit._(JSObject _) implements JSObject {
@@ -1579,16 +2361,16 @@ extension type RTCErrorInit._(JSObject _) implements JSObject {
     int sentAlert,
   });
 
-  external set errorDetail(RTCErrorDetailType value);
   external RTCErrorDetailType get errorDetail;
-  external set sdpLineNumber(int value);
+  external set errorDetail(RTCErrorDetailType value);
   external int get sdpLineNumber;
-  external set sctpCauseCode(int value);
+  external set sdpLineNumber(int value);
   external int get sctpCauseCode;
-  external set receivedAlert(int value);
+  external set sctpCauseCode(int value);
   external int get receivedAlert;
-  external set sentAlert(int value);
+  external set receivedAlert(int value);
   external int get sentAlert;
+  external set sentAlert(int value);
 }
 
 /// The WebRTC API's **`RTCErrorEvent`** interface represents an error sent to a
@@ -1605,6 +2387,10 @@ extension type RTCErrorEvent._(JSObject _) implements Event, JSObject {
     RTCErrorEventInit eventInitDict,
   );
 
+  /// The read-only [RTCErrorEvent] property **`error`**
+  /// contains an [RTCError] object describing the details of the error which
+  /// the
+  /// event is announcing.
   external RTCError get error;
 }
 extension type RTCErrorEventInit._(JSObject _) implements EventInit, JSObject {
@@ -1615,6 +2401,6 @@ extension type RTCErrorEventInit._(JSObject _) implements EventInit, JSObject {
     required RTCError error,
   });
 
-  external set error(RTCError value);
   external RTCError get error;
+  external set error(RTCError value);
 }
diff --git a/lib/src/dom/webrtc_encoded_transform.dart b/lib/src/dom/webrtc_encoded_transform.dart
index 7db6d4fc..dc8200f5 100644
--- a/lib/src/dom/webrtc_encoded_transform.dart
+++ b/lib/src/dom/webrtc_encoded_transform.dart
@@ -27,8 +27,8 @@ typedef RTCEncodedVideoFrameType = String;
 extension type SFrameTransformOptions._(JSObject _) implements JSObject {
   external factory SFrameTransformOptions({SFrameTransformRole role});
 
-  external set role(SFrameTransformRole value);
   external SFrameTransformRole get role;
+  external set role(SFrameTransformRole value);
 }
 extension type SFrameTransform._(JSObject _) implements EventTarget, JSObject {
   external factory SFrameTransform([SFrameTransformOptions options]);
@@ -37,8 +37,8 @@ extension type SFrameTransform._(JSObject _) implements EventTarget, JSObject {
     CryptoKey key, [
     CryptoKeyID keyID,
   ]);
-  external set onerror(EventHandler value);
   external EventHandler get onerror;
+  external set onerror(EventHandler value);
   external ReadableStream get readable;
   external WritableStream get writable;
 }
@@ -64,12 +64,12 @@ extension type SFrameTransformErrorEventInit._(JSObject _)
     CryptoKeyID? keyID,
   });
 
-  external set errorType(SFrameTransformErrorEventType value);
   external SFrameTransformErrorEventType get errorType;
-  external set frame(JSAny? value);
+  external set errorType(SFrameTransformErrorEventType value);
   external JSAny? get frame;
-  external set keyID(CryptoKeyID? value);
+  external set frame(JSAny? value);
   external CryptoKeyID? get keyID;
+  external set keyID(CryptoKeyID? value);
 }
 extension type RTCEncodedVideoFrameMetadata._(JSObject _) implements JSObject {
   external factory RTCEncodedVideoFrameMetadata({
@@ -87,30 +87,30 @@ extension type RTCEncodedVideoFrameMetadata._(JSObject _) implements JSObject {
     String mimeType,
   });
 
-  external set frameId(int value);
   external int get frameId;
-  external set dependencies(JSArray<JSNumber> value);
+  external set frameId(int value);
   external JSArray<JSNumber> get dependencies;
-  external set width(int value);
+  external set dependencies(JSArray<JSNumber> value);
   external int get width;
-  external set height(int value);
+  external set width(int value);
   external int get height;
-  external set spatialIndex(int value);
+  external set height(int value);
   external int get spatialIndex;
-  external set temporalIndex(int value);
+  external set spatialIndex(int value);
   external int get temporalIndex;
-  external set synchronizationSource(int value);
+  external set temporalIndex(int value);
   external int get synchronizationSource;
-  external set payloadType(int value);
+  external set synchronizationSource(int value);
   external int get payloadType;
-  external set contributingSources(JSArray<JSNumber> value);
+  external set payloadType(int value);
   external JSArray<JSNumber> get contributingSources;
-  external set timestamp(int value);
+  external set contributingSources(JSArray<JSNumber> value);
   external int get timestamp;
-  external set rtpTimestamp(int value);
+  external set timestamp(int value);
   external int get rtpTimestamp;
-  external set mimeType(String value);
+  external set rtpTimestamp(int value);
   external String get mimeType;
+  external set mimeType(String value);
 }
 
 /// The **`RTCEncodedVideoFrame`** of the
@@ -134,9 +134,15 @@ extension type RTCEncodedVideoFrame._(JSObject _) implements JSObject {
   /// encoding, other frames needed to construct a full image, timestamp, and
   /// other information.
   external RTCEncodedVideoFrameMetadata getMetadata();
+
+  /// The readonly **`type`** property of the [RTCEncodedVideoFrame] interface
+  /// indicates whether this frame is a key frame, delta frame, or empty frame.
   external RTCEncodedVideoFrameType get type;
-  external set data(JSArrayBuffer value);
+
+  /// The **`data`** property of the [RTCEncodedVideoFrame] interface returns a
+  /// buffer containing the frame data.
   external JSArrayBuffer get data;
+  external set data(JSArrayBuffer value);
 }
 extension type RTCEncodedAudioFrameMetadata._(JSObject _) implements JSObject {
   external factory RTCEncodedAudioFrameMetadata({
@@ -148,18 +154,18 @@ extension type RTCEncodedAudioFrameMetadata._(JSObject _) implements JSObject {
     String mimeType,
   });
 
-  external set synchronizationSource(int value);
   external int get synchronizationSource;
-  external set payloadType(int value);
+  external set synchronizationSource(int value);
   external int get payloadType;
-  external set contributingSources(JSArray<JSNumber> value);
+  external set payloadType(int value);
   external JSArray<JSNumber> get contributingSources;
-  external set sequenceNumber(int value);
+  external set contributingSources(JSArray<JSNumber> value);
   external int get sequenceNumber;
-  external set rtpTimestamp(int value);
+  external set sequenceNumber(int value);
   external int get rtpTimestamp;
-  external set mimeType(String value);
+  external set rtpTimestamp(int value);
   external String get mimeType;
+  external set mimeType(String value);
 }
 
 /// The **`RTCEncodedAudioFrame`** of the
@@ -189,8 +195,11 @@ extension type RTCEncodedAudioFrame._(JSObject _) implements JSObject {
   /// used, the synchronization source and contributing sources, and the
   /// sequence number (for incoming frames).
   external RTCEncodedAudioFrameMetadata getMetadata();
-  external set data(JSArrayBuffer value);
+
+  /// The **`data`** property of the [RTCEncodedAudioFrame] interface returns a
+  /// buffer containing the data for an encoded frame.
   external JSArrayBuffer get data;
+  external set data(JSArrayBuffer value);
 }
 
 /// The **`RTCTransformEvent`** of the
@@ -213,6 +222,13 @@ extension type RTCEncodedAudioFrame._(JSObject _) implements JSObject {
 /// API documentation sourced from
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/RTCTransformEvent).
 extension type RTCTransformEvent._(JSObject _) implements Event, JSObject {
+  /// The read-only **`transformer`** property of the [RTCTransformEvent]
+  /// interface returns the [RTCRtpScriptTransformer] associated with the event.
+  ///
+  /// The property exposes the WebRTC sender or receiver pipeline as a readable
+  /// and writable stream of encoded media frames, which a
+  /// [WebRTC Encoded Transform](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Using_Encoded_Transforms)
+  /// can insert itself into in order to modify frames.
   external RTCRtpScriptTransformer get transformer;
 }
 
@@ -258,10 +274,45 @@ extension type RTCRtpScriptTransformer._(JSObject _)
   /// > [Triggering a key frame](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Using_Encoded_Transforms#triggering_a_key_frame)
   /// > in Using WebRTC Encoded Transforms.
   external JSPromise<JSAny?> sendKeyFrameRequest();
+
+  /// The **`readable`** read-only property of the [RTCRtpScriptTransformer]
+  /// interface returns a [ReadableStream] instance is a source for encoded
+  /// media frames.
+  ///
+  /// When the corresponding [RTCRtpScriptTransform] is inserted into the WebRTC
+  /// sender and receiver pipelines, this stream may be enqueued with outgoing
+  /// or incoming encoded media frames ([RTCEncodedVideoFrame] or
+  /// [RTCEncodedAudioFrame]).
+  /// A WebRTC encoded transform can read the frames, modify them as needed, and
+  /// then send them back into the WebRTC pipeline by writing them to
+  /// [RTCRtpScriptTransformer.writable].
+  /// A common way to perform this operation is to pipe the frames through a
+  /// [TransformStream].
   external ReadableStream get readable;
+
+  /// The **`writable`** read-only property of the [RTCRtpScriptTransformer]
+  /// interface returns a [WritableStream] instance that can be used as a sink
+  /// for encoded media frames enqueued on the corresponding
+  /// [RTCRtpScriptTransformer.readable].
+  ///
+  /// When the corresponding [RTCRtpScriptTransform] is inserted into the WebRTC
+  /// sender and receiver pipelines, encoded media frames
+  /// ([RTCEncodedVideoFrame] or [RTCEncodedAudioFrame]) may be enqueued on the
+  /// [RTCRtpScriptTransformer.readable].
+  /// A WebRTC encoded transform can read the frames from `readable`, modify
+  /// them as needed, and then send them back into the WebRTC pipeline by
+  /// sending them to this `writable`.
+  /// A common way to perform this operation is to pipe the frames through a
+  /// [TransformStream].
   external WritableStream get writable;
-  external set onkeyframerequest(EventHandler value);
   external EventHandler get onkeyframerequest;
+  external set onkeyframerequest(EventHandler value);
+
+  /// The **`options`** read-only property of the [RTCRtpScriptTransformer]
+  /// interface returns the object that was (optionally) passed as the second
+  /// argument
+  /// [during construction](https://developer.mozilla.org/en-US/docs/Web/API/RTCRtpScriptTransform/RTCRtpScriptTransform)
+  /// of the corresponding [RTCRtpScriptTransform].
   external JSAny? get options;
 }
 
diff --git a/lib/src/dom/webrtc_stats.dart b/lib/src/dom/webrtc_stats.dart
index 1bdeb878..6631f0f4 100644
--- a/lib/src/dom/webrtc_stats.dart
+++ b/lib/src/dom/webrtc_stats.dart
@@ -53,14 +53,43 @@ extension type RTCRtpStreamStats._(JSObject _) implements RTCStats, JSObject {
     String codecId,
   });
 
-  external set ssrc(int value);
+  /// The [RTCRtpStreamStats] dictionary's
+  /// **`ssrc`** property provides the Synchronization Source
+  /// (SSRC), an integer which uniquely identifies the source of the
+  /// packets whose statistics are covered by the [RTCStatsReport] that
+  /// includes this `RTCRtpStreamStats` dictionary.
   external int get ssrc;
-  external set kind(String value);
+  external set ssrc(int value);
+
+  /// The **`kind`** property of the
+  /// [RTCRtpStreamStats] dictionary is a string indicating whether the
+  /// described  stream contains audio or video media.
+  ///
+  /// Its value
+  /// is always either `"audio"` or `"video"`.
+  ///
+  /// This property was previously called `mediaType`. The name was changed in
+  /// the
+  /// specification in February, 2018. See
+  /// [Browser compatibility](#browser_compatibility) below to
+  /// determine how this affects the browsers you're targeting.
   external String get kind;
-  external set transportId(String value);
+  external set kind(String value);
+
+  /// The [RTCRtpStreamStats] dictionary's
+  /// **`transportId`** property is a string which uniquely
+  /// identifies the object from which the statistics contained in the
+  /// [RTCTransportStats] properties in the
+  /// [RTCStatsReport].
   external String get transportId;
-  external set codecId(String value);
+  external set transportId(String value);
+
+  /// The [RTCRtpStreamStats] dictionary's
+  /// **`codecId`** property is a string which uniquely identifies
+  /// the object that was inspected to produce the data in the [RTCCodecStats]
+  /// for the  stream.
   external String get codecId;
+  external set codecId(String value);
 }
 extension type RTCCodecStats._(JSObject _) implements RTCStats, JSObject {
   external factory RTCCodecStats({
@@ -75,18 +104,18 @@ extension type RTCCodecStats._(JSObject _) implements RTCStats, JSObject {
     String sdpFmtpLine,
   });
 
-  external set payloadType(int value);
   external int get payloadType;
-  external set transportId(String value);
+  external set payloadType(int value);
   external String get transportId;
-  external set mimeType(String value);
+  external set transportId(String value);
   external String get mimeType;
-  external set clockRate(int value);
+  external set mimeType(String value);
   external int get clockRate;
-  external set channels(int value);
+  external set clockRate(int value);
   external int get channels;
-  external set sdpFmtpLine(String value);
+  external set channels(int value);
   external String get sdpFmtpLine;
+  external set sdpFmtpLine(String value);
 }
 extension type RTCReceivedRtpStreamStats._(JSObject _)
     implements RTCRtpStreamStats, JSObject {
@@ -103,12 +132,12 @@ extension type RTCReceivedRtpStreamStats._(JSObject _)
     num jitter,
   });
 
-  external set packetsReceived(int value);
   external int get packetsReceived;
-  external set packetsLost(int value);
+  external set packetsReceived(int value);
   external int get packetsLost;
-  external set jitter(num value);
+  external set packetsLost(int value);
   external num get jitter;
+  external set jitter(num value);
 }
 
 /// The **`RTCInboundRtpStreamStats`** dictionary of the
@@ -192,112 +221,183 @@ extension type RTCInboundRtpStreamStats._(JSObject _)
     int fecSsrc,
   });
 
-  external set trackIdentifier(String value);
   external String get trackIdentifier;
-  external set mid(String value);
+  external set trackIdentifier(String value);
   external String get mid;
-  external set remoteId(String value);
+  external set mid(String value);
+
+  /// The **`remoteId`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary specifies the
+  /// [RTCInboundRtpStreamStats.id] of the [RTCRemoteOutboundRtpStreamStats]
+  /// object representing the remote peer's [RTCRtpSender] which is sending the
+  /// media to the local peer.
   external String get remoteId;
-  external set framesDecoded(int value);
+  external set remoteId(String value);
+
+  /// The **`framesDecoded`** property of
+  /// the [RTCInboundRtpStreamStats] dictionary indicates the total number of
+  /// frames which have been decoded successfully for this media source.
   external int get framesDecoded;
-  external set keyFramesDecoded(int value);
+  external set framesDecoded(int value);
   external int get keyFramesDecoded;
-  external set framesRendered(int value);
+  external set keyFramesDecoded(int value);
   external int get framesRendered;
-  external set framesDropped(int value);
+  external set framesRendered(int value);
   external int get framesDropped;
-  external set frameWidth(int value);
+  external set framesDropped(int value);
   external int get frameWidth;
-  external set frameHeight(int value);
+  external set frameWidth(int value);
   external int get frameHeight;
-  external set framesPerSecond(num value);
+  external set frameHeight(int value);
   external num get framesPerSecond;
-  external set qpSum(int value);
+  external set framesPerSecond(num value);
+
+  /// The **`qpSum`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary is a value generated by adding the
+  /// **Quantization Parameter** (**QP**) values for every frame
+  /// sent or received to date on the video track corresponding to this
+  /// `RTCInboundRtpStreamStats` object.
+  ///
+  /// In general, the higher this
+  /// number is, the more heavily compressed the video data is.
   external int get qpSum;
-  external set totalDecodeTime(num value);
+  external set qpSum(int value);
   external num get totalDecodeTime;
-  external set totalInterFrameDelay(num value);
+  external set totalDecodeTime(num value);
   external num get totalInterFrameDelay;
-  external set totalSquaredInterFrameDelay(num value);
+  external set totalInterFrameDelay(num value);
   external num get totalSquaredInterFrameDelay;
-  external set pauseCount(int value);
+  external set totalSquaredInterFrameDelay(num value);
   external int get pauseCount;
-  external set totalPausesDuration(num value);
+  external set pauseCount(int value);
   external num get totalPausesDuration;
-  external set freezeCount(int value);
+  external set totalPausesDuration(num value);
   external int get freezeCount;
-  external set totalFreezesDuration(num value);
+  external set freezeCount(int value);
   external num get totalFreezesDuration;
-  external set lastPacketReceivedTimestamp(DOMHighResTimeStamp value);
+  external set totalFreezesDuration(num value);
+
+  /// The **`lastPacketReceivedTimestamp`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary indicates the time at which the most
+  /// recently received packet arrived from this source.
   external DOMHighResTimeStamp get lastPacketReceivedTimestamp;
-  external set headerBytesReceived(int value);
+  external set lastPacketReceivedTimestamp(DOMHighResTimeStamp value);
   external int get headerBytesReceived;
-  external set packetsDiscarded(int value);
+  external set headerBytesReceived(int value);
   external int get packetsDiscarded;
-  external set fecBytesReceived(int value);
+  external set packetsDiscarded(int value);
   external int get fecBytesReceived;
-  external set fecPacketsReceived(int value);
+  external set fecBytesReceived(int value);
+
+  /// The **`fecPacketsReceived`** property
+  /// of the [RTCInboundRtpStreamStats] dictionary indicates how many
+  /// Forward Error Correction (FEC) packets have been received by this RTP
+  /// receiver
+  /// from the remote peer.
+  ///
+  /// An FEC packet provides parity information which can
+  /// be used to attempt to reconstruct RTP data packets which have been
+  /// corrupted in
+  /// transit.
   external int get fecPacketsReceived;
-  external set fecPacketsDiscarded(int value);
+  external set fecPacketsReceived(int value);
+
+  /// The **`fecPacketsDiscarded`** property
+  /// of the [RTCInboundRtpStreamStats] dictionary is a numeric value
+  /// indicating the number of  Forward Error Correction (FEC) packets
+  /// that have been discarded.
   external int get fecPacketsDiscarded;
-  external set bytesReceived(int value);
+  external set fecPacketsDiscarded(int value);
+
+  /// The [RTCInboundRtpStreamStats] dictionary's
+  /// **`bytesReceived`** property is an integer value which
+  /// indicates the total number of bytes received so far from this
+  /// synchronization source
+  /// (SSRC).
   external int get bytesReceived;
-  external set nackCount(int value);
+  external set bytesReceived(int value);
+
+  /// The **`nackCount`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary is a numeric value indicating the
+  /// number of times the receiver sent a **NACK** packet to the sender.
+  ///
+  /// A NACK (Negative ACKnowledgement, also called "Generic NACK") packet tells
+  /// the sender
+  /// that one or more of the  packets it sent were lost in transport.
   external int get nackCount;
-  external set firCount(int value);
+  external set nackCount(int value);
+
+  /// The **`firCount`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary indicates the number of
+  /// **Full Intra Request** (**FIR**) packets have been sent by
+  /// the receiver to the sender.
+  ///
+  /// The receiver sends a FIR packet when the stream
+  /// falls behind and needs to skip frames in order to catch up.
   external int get firCount;
-  external set pliCount(int value);
+  external set firCount(int value);
+
+  /// The **`pliCount`** property of the
+  /// [RTCInboundRtpStreamStats] dictionary states the number of times the
+  /// [RTCRtpReceiver] described by these statistics sent a **Picture
+  /// Loss Indication** (**PLI**) packet to the sender.
+  ///
+  /// A PLI
+  /// packet indicates that some amount of encoded video data has been lost for
+  /// one or more
+  /// frames.
   external int get pliCount;
-  external set totalProcessingDelay(num value);
+  external set pliCount(int value);
   external num get totalProcessingDelay;
-  external set estimatedPlayoutTimestamp(DOMHighResTimeStamp value);
+  external set totalProcessingDelay(num value);
   external DOMHighResTimeStamp get estimatedPlayoutTimestamp;
-  external set jitterBufferDelay(num value);
+  external set estimatedPlayoutTimestamp(DOMHighResTimeStamp value);
   external num get jitterBufferDelay;
-  external set jitterBufferTargetDelay(num value);
+  external set jitterBufferDelay(num value);
   external num get jitterBufferTargetDelay;
-  external set jitterBufferEmittedCount(int value);
+  external set jitterBufferTargetDelay(num value);
   external int get jitterBufferEmittedCount;
-  external set jitterBufferMinimumDelay(num value);
+  external set jitterBufferEmittedCount(int value);
   external num get jitterBufferMinimumDelay;
-  external set totalSamplesReceived(int value);
+  external set jitterBufferMinimumDelay(num value);
   external int get totalSamplesReceived;
-  external set concealedSamples(int value);
+  external set totalSamplesReceived(int value);
   external int get concealedSamples;
-  external set silentConcealedSamples(int value);
+  external set concealedSamples(int value);
   external int get silentConcealedSamples;
-  external set concealmentEvents(int value);
+  external set silentConcealedSamples(int value);
   external int get concealmentEvents;
-  external set insertedSamplesForDeceleration(int value);
+  external set concealmentEvents(int value);
   external int get insertedSamplesForDeceleration;
-  external set removedSamplesForAcceleration(int value);
+  external set insertedSamplesForDeceleration(int value);
   external int get removedSamplesForAcceleration;
-  external set audioLevel(num value);
+  external set removedSamplesForAcceleration(int value);
   external num get audioLevel;
-  external set totalAudioEnergy(num value);
+  external set audioLevel(num value);
   external num get totalAudioEnergy;
-  external set totalSamplesDuration(num value);
+  external set totalAudioEnergy(num value);
   external num get totalSamplesDuration;
-  external set framesReceived(int value);
+  external set totalSamplesDuration(num value);
   external int get framesReceived;
-  external set decoderImplementation(String value);
+  external set framesReceived(int value);
   external String get decoderImplementation;
-  external set playoutId(String value);
+  external set decoderImplementation(String value);
   external String get playoutId;
-  external set powerEfficientDecoder(bool value);
+  external set playoutId(String value);
   external bool get powerEfficientDecoder;
-  external set framesAssembledFromMultiplePackets(int value);
+  external set powerEfficientDecoder(bool value);
   external int get framesAssembledFromMultiplePackets;
-  external set totalAssemblyTime(num value);
+  external set framesAssembledFromMultiplePackets(int value);
   external num get totalAssemblyTime;
-  external set retransmittedPacketsReceived(int value);
+  external set totalAssemblyTime(num value);
   external int get retransmittedPacketsReceived;
-  external set retransmittedBytesReceived(int value);
+  external set retransmittedPacketsReceived(int value);
   external int get retransmittedBytesReceived;
-  external set rtxSsrc(int value);
+  external set retransmittedBytesReceived(int value);
   external int get rtxSsrc;
-  external set fecSsrc(int value);
+  external set rtxSsrc(int value);
   external int get fecSsrc;
+  external set fecSsrc(int value);
 }
 extension type RTCRemoteInboundRtpStreamStats._(JSObject _)
     implements RTCReceivedRtpStreamStats, JSObject {
@@ -319,16 +419,16 @@ extension type RTCRemoteInboundRtpStreamStats._(JSObject _)
     int roundTripTimeMeasurements,
   });
 
-  external set localId(String value);
   external String get localId;
-  external set roundTripTime(num value);
+  external set localId(String value);
   external num get roundTripTime;
-  external set totalRoundTripTime(num value);
+  external set roundTripTime(num value);
   external num get totalRoundTripTime;
-  external set fractionLost(num value);
+  external set totalRoundTripTime(num value);
   external num get fractionLost;
-  external set roundTripTimeMeasurements(int value);
+  external set fractionLost(num value);
   external int get roundTripTimeMeasurements;
+  external set roundTripTimeMeasurements(int value);
 }
 extension type RTCSentRtpStreamStats._(JSObject _)
     implements RTCRtpStreamStats, JSObject {
@@ -344,10 +444,10 @@ extension type RTCSentRtpStreamStats._(JSObject _)
     int bytesSent,
   });
 
-  external set packetsSent(int value);
   external int get packetsSent;
-  external set bytesSent(int value);
+  external set packetsSent(int value);
   external int get bytesSent;
+  external set bytesSent(int value);
 }
 
 /// The **`RTCOutboundRtpStreamStats`** dictionary of the
@@ -407,66 +507,132 @@ extension type RTCOutboundRtpStreamStats._(JSObject _)
     String scalabilityMode,
   });
 
-  external set mid(String value);
   external String get mid;
-  external set mediaSourceId(String value);
+  external set mid(String value);
   external String get mediaSourceId;
-  external set remoteId(String value);
+  external set mediaSourceId(String value);
+
+  /// The **`remoteId`** property of the
+  /// [RTCOutboundRtpStreamStats] dictionary specifies the
+  /// [RTCOutboundRtpStreamStats.id] of the [RTCRemoteInboundRtpStreamStats]
+  /// object representing the remote peer's [RTCRtpReceiver] which is sending
+  /// the media to the local peer for this SSRC.
   external String get remoteId;
-  external set rid(String value);
+  external set remoteId(String value);
   external String get rid;
-  external set headerBytesSent(int value);
+  external set rid(String value);
   external int get headerBytesSent;
-  external set retransmittedPacketsSent(int value);
+  external set headerBytesSent(int value);
   external int get retransmittedPacketsSent;
-  external set retransmittedBytesSent(int value);
+  external set retransmittedPacketsSent(int value);
   external int get retransmittedBytesSent;
-  external set rtxSsrc(int value);
+  external set retransmittedBytesSent(int value);
   external int get rtxSsrc;
-  external set targetBitrate(num value);
+  external set rtxSsrc(int value);
   external num get targetBitrate;
-  external set totalEncodedBytesTarget(int value);
+  external set targetBitrate(num value);
   external int get totalEncodedBytesTarget;
-  external set frameWidth(int value);
+  external set totalEncodedBytesTarget(int value);
   external int get frameWidth;
-  external set frameHeight(int value);
+  external set frameWidth(int value);
   external int get frameHeight;
-  external set framesPerSecond(num value);
+  external set frameHeight(int value);
   external num get framesPerSecond;
-  external set framesSent(int value);
+  external set framesPerSecond(num value);
   external int get framesSent;
-  external set hugeFramesSent(int value);
+  external set framesSent(int value);
   external int get hugeFramesSent;
-  external set framesEncoded(int value);
+  external set hugeFramesSent(int value);
+
+  /// The **`framesEncoded`** property of
+  /// the [RTCOutboundRtpStreamStats] dictionary indicates the total number of
+  /// frames that have been encoded by this [RTCRtpSender] for this media
+  /// source.
   external int get framesEncoded;
-  external set keyFramesEncoded(int value);
+  external set framesEncoded(int value);
   external int get keyFramesEncoded;
-  external set qpSum(int value);
+  external set keyFramesEncoded(int value);
+
+  /// The **`qpSum`** property of the [RTCOutboundRtpStreamStats] dictionary is
+  /// a value generated by adding the **Quantization Parameter** (**QP**) values
+  /// for every frame this sender has produced to date on the video track
+  /// corresponding to this `RTCOutboundRtpStreamStats` object.
+  ///
+  /// In general, the higher this number is, the more heavily compressed the
+  /// video data is.
   external int get qpSum;
-  external set totalEncodeTime(num value);
+  external set qpSum(int value);
   external num get totalEncodeTime;
-  external set totalPacketSendDelay(num value);
+  external set totalEncodeTime(num value);
   external num get totalPacketSendDelay;
-  external set qualityLimitationReason(RTCQualityLimitationReason value);
+  external set totalPacketSendDelay(num value);
+
+  /// The **`qualityLimitationReason`**
+  /// property of the [RTCOutboundRtpStreamStats] dictionary is a string
+  /// indicating the reason why the media quality in the stream is currently
+  /// being reduced
+  /// by the codec during encoding, or `none` if no quality reduction is being
+  /// performed.
+  ///
+  /// This quality reduction may include changes such as reduced frame
+  /// rate or resolution, or an increase in compression factor.
+  ///
+  /// The amount of time the encoded media has had its quality reduced in each
+  /// of the
+  /// potential ways that can be done can be found in
+  /// [RTCOutboundRtpStreamStats.qualityLimitationDurations].
   external RTCQualityLimitationReason get qualityLimitationReason;
-  external set qualityLimitationDurations(JSObject value);
+  external set qualityLimitationReason(RTCQualityLimitationReason value);
   external JSObject get qualityLimitationDurations;
-  external set qualityLimitationResolutionChanges(int value);
+  external set qualityLimitationDurations(JSObject value);
   external int get qualityLimitationResolutionChanges;
-  external set nackCount(int value);
+  external set qualityLimitationResolutionChanges(int value);
+
+  /// The **`nackCount`** property of the
+  /// [RTCOutboundRtpStreamStats] dictionary is a numeric value indicating the
+  /// number of times the [RTCRtpSender] described by this object received a
+  /// **NACK** packet from the remote receiver.
+  ///
+  /// A NACK (Negative
+  /// ACKnowledgement, also called "Generic NACK") packet is used by the
+  /// [RTCRtpReceiver] to inform the sender that one or more
+  /// packets it sent were lost in transport.
   external int get nackCount;
-  external set firCount(int value);
+  external set nackCount(int value);
+
+  /// The **`firCount`** property of the
+  /// [RTCOutboundRtpStreamStats] dictionary indicates the number of
+  /// **Full Intra Request** (**FIR**) that the remote
+  /// [RTCRtpReceiver] has sent to this [RTCRtpSender].
+  ///
+  /// A FIR packet is sent when the receiver finds that it has fallen behind and
+  /// needs to skip
+  /// frames in order to catch up; the sender should respond by sending a full
+  /// frame instead
+  /// of a delta frame.
+  ///
+  /// Available only on video media.
   external int get firCount;
-  external set pliCount(int value);
+  external set firCount(int value);
+
+  /// The **`pliCount`** property of the
+  /// [RTCOutboundRtpStreamStats] dictionary states the number of times the
+  /// remote peer's [RTCRtpReceiver] sent a **Picture Loss
+  /// Indication** (**PLI**) packet to the [RTCRtpSender]
+  /// for which this object provides statistics.
+  ///
+  /// A PLI packet indicates that some
+  /// amount of encoded video data has been lost for one or more frames.
   external int get pliCount;
-  external set encoderImplementation(String value);
+  external set pliCount(int value);
   external String get encoderImplementation;
-  external set powerEfficientEncoder(bool value);
+  external set encoderImplementation(String value);
   external bool get powerEfficientEncoder;
-  external set active(bool value);
+  external set powerEfficientEncoder(bool value);
   external bool get active;
-  external set scalabilityMode(String value);
+  external set active(bool value);
   external String get scalabilityMode;
+  external set scalabilityMode(String value);
 }
 
 /// The **`RTCRemoteOutboundRtpStreamStats`** dictionary of the
@@ -503,18 +669,30 @@ extension type RTCRemoteOutboundRtpStreamStats._(JSObject _)
     int roundTripTimeMeasurements,
   });
 
-  external set localId(String value);
+  /// The [RTCRemoteOutboundRtpStreamStats] dictionary's **`localId`** property
+  /// is a string which can be used to identify the [RTCInboundRtpStreamStats]
+  /// object whose [RTCInboundRtpStreamStats.remoteId] matches this value.
+  ///
+  /// Together, these two objects provide statistics about the inbound and
+  /// outbound sides of the same synchronization source (SSRC).
   external String get localId;
-  external set remoteTimestamp(DOMHighResTimeStamp value);
+  external set localId(String value);
+
+  /// The [RTCRemoteOutboundRtpStreamStats] property **`remoteTimestamp`**
+  /// indicates the timestamp on the remote peer at which these statistics were
+  /// sent.
+  /// This differs from `timestamp`, which indicates the time at which the
+  /// statistics were generated or received locally.
   external DOMHighResTimeStamp get remoteTimestamp;
-  external set reportsSent(int value);
+  external set remoteTimestamp(DOMHighResTimeStamp value);
   external int get reportsSent;
-  external set roundTripTime(num value);
+  external set reportsSent(int value);
   external num get roundTripTime;
-  external set totalRoundTripTime(num value);
+  external set roundTripTime(num value);
   external num get totalRoundTripTime;
-  external set roundTripTimeMeasurements(int value);
+  external set totalRoundTripTime(num value);
   external int get roundTripTimeMeasurements;
+  external set roundTripTimeMeasurements(int value);
 }
 extension type RTCMediaSourceStats._(JSObject _) implements RTCStats, JSObject {
   external factory RTCMediaSourceStats({
@@ -525,10 +703,10 @@ extension type RTCMediaSourceStats._(JSObject _) implements RTCStats, JSObject {
     required String kind,
   });
 
-  external set trackIdentifier(String value);
   external String get trackIdentifier;
-  external set kind(String value);
+  external set trackIdentifier(String value);
   external String get kind;
+  external set kind(String value);
 }
 
 /// The
@@ -563,16 +741,49 @@ extension type RTCAudioSourceStats._(JSObject _)
     num echoReturnLossEnhancement,
   });
 
-  external set audioLevel(num value);
+  /// The [RTCAudioSourceStats] dictionary's **`audioLevel`** property
+  /// represents the audio level of the media source.
+  ///
+  /// The level is averaged over some small implementation-dependent interval.
+  /// Users can alternatively calculate the average audio level over some
+  /// arbitrary duration using the algorithm described in the
+  /// [`RTCAudioSourceStats` description](https://developer.mozilla.org/en-US/docs/Web/API/RTCAudioSourceStats#description).
+  ///
+  /// > **Note:** For audio levels of remotely sourced tracks, see
+  /// > [RTCInboundRtpStreamStats.audioLevel].
   external num get audioLevel;
-  external set totalAudioEnergy(num value);
+  external set audioLevel(num value);
+
+  /// The [RTCAudioSourceStats] dictionary's **`totalAudioEnergy`** property
+  /// represents the total audio energy of the media source over the lifetime of
+  /// this stats object.
+  ///
+  /// The total energy across a particular duration can be determined by
+  /// subtracting the value of this property returned by two different
+  /// `getStats()` calls.
+  ///
+  /// > **Note:** For audio energy of remotely sourced tracks, see
+  /// > [RTCInboundRtpStreamStats.totalAudioEnergy].
   external num get totalAudioEnergy;
-  external set totalSamplesDuration(num value);
+  external set totalAudioEnergy(num value);
+
+  /// The [RTCAudioSourceStats] dictionary's **`totalSamplesDuration`** property
+  /// represents the combined duration of all samples produced by the media
+  /// source over the lifetime of this stats object, in seconds.
+  /// It does not include samples dropped before reaching this media source.
+  /// <!-- Dropped samples in `droppedSamplesDuration`; not implemented -->
+  ///
+  /// This can be used with [RTCAudioSourceStats.totalAudioEnergy] to compute an
+  /// [average audio level over different intervals](https://developer.mozilla.org/en-US/docs/Web/API/RTCAudioSourceStats#description).
+  ///
+  /// > **Note:** For audio duration of remotely sourced tracks, see
+  /// > [RTCInboundRtpStreamStats.totalSamplesDuration].
   external num get totalSamplesDuration;
-  external set echoReturnLoss(num value);
+  external set totalSamplesDuration(num value);
   external num get echoReturnLoss;
-  external set echoReturnLossEnhancement(num value);
+  external set echoReturnLoss(num value);
   external num get echoReturnLossEnhancement;
+  external set echoReturnLossEnhancement(num value);
 }
 extension type RTCVideoSourceStats._(JSObject _)
     implements RTCMediaSourceStats, JSObject {
@@ -588,14 +799,14 @@ extension type RTCVideoSourceStats._(JSObject _)
     num framesPerSecond,
   });
 
-  external set width(int value);
   external int get width;
-  external set height(int value);
+  external set width(int value);
   external int get height;
-  external set frames(int value);
+  external set height(int value);
   external int get frames;
-  external set framesPerSecond(num value);
+  external set frames(int value);
   external num get framesPerSecond;
+  external set framesPerSecond(num value);
 }
 extension type RTCAudioPlayoutStats._(JSObject _)
     implements RTCStats, JSObject {
@@ -611,18 +822,18 @@ extension type RTCAudioPlayoutStats._(JSObject _)
     int totalSamplesCount,
   });
 
-  external set kind(String value);
   external String get kind;
-  external set synthesizedSamplesDuration(num value);
+  external set kind(String value);
   external num get synthesizedSamplesDuration;
-  external set synthesizedSamplesEvents(int value);
+  external set synthesizedSamplesDuration(num value);
   external int get synthesizedSamplesEvents;
-  external set totalSamplesDuration(num value);
+  external set synthesizedSamplesEvents(int value);
   external num get totalSamplesDuration;
-  external set totalPlayoutDelay(num value);
+  external set totalSamplesDuration(num value);
   external num get totalPlayoutDelay;
-  external set totalSamplesCount(int value);
+  external set totalPlayoutDelay(num value);
   external int get totalSamplesCount;
+  external set totalSamplesCount(int value);
 }
 
 /// The **`RTCPeerConnectionStats`** dictionary of the
@@ -652,10 +863,29 @@ extension type RTCPeerConnectionStats._(JSObject _)
     int dataChannelsClosed,
   });
 
-  external set dataChannelsOpened(int value);
+  /// The **`dataChannelsOpened`** property of the [RTCPeerConnectionStats]
+  /// dictionary indicates the number of unique [RTCDataChannel] objects that
+  /// have entered the
+  /// [`open`](https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/readyState#open)
+  /// state during their lifetime.
   external int get dataChannelsOpened;
-  external set dataChannelsClosed(int value);
+  external set dataChannelsOpened(int value);
+
+  /// The **`dataChannelsClosed`** property of the [RTCPeerConnectionStats]
+  /// dictionary indicates the number of unique [RTCDataChannel] objects that
+  /// have left the
+  /// [`open`](https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/readyState#open)
+  /// state during their lifetime.
+  ///
+  /// A channel will leave the `open` state if either end of the connection or
+  /// the underlying transport is closed.
+  /// Note that channels that transition to
+  /// [`closing`](https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/readyState#closing)
+  /// or
+  /// [`closed`](https://developer.mozilla.org/en-US/docs/Web/API/RTCDataChannel/readyState#closed)
+  /// without ever being `open` are not counted in this number.
   external int get dataChannelsClosed;
+  external set dataChannelsClosed(int value);
 }
 extension type RTCDataChannelStats._(JSObject _) implements RTCStats, JSObject {
   external factory RTCDataChannelStats({
@@ -672,22 +902,22 @@ extension type RTCDataChannelStats._(JSObject _) implements RTCStats, JSObject {
     int bytesReceived,
   });
 
-  external set label(String value);
   external String get label;
-  external set protocol(String value);
+  external set label(String value);
   external String get protocol;
-  external set dataChannelIdentifier(int value);
+  external set protocol(String value);
   external int get dataChannelIdentifier;
-  external set state(RTCDataChannelState value);
+  external set dataChannelIdentifier(int value);
   external RTCDataChannelState get state;
-  external set messagesSent(int value);
+  external set state(RTCDataChannelState value);
   external int get messagesSent;
-  external set bytesSent(int value);
+  external set messagesSent(int value);
   external int get bytesSent;
-  external set messagesReceived(int value);
+  external set bytesSent(int value);
   external int get messagesReceived;
-  external set bytesReceived(int value);
+  external set messagesReceived(int value);
   external int get bytesReceived;
+  external set bytesReceived(int value);
 }
 
 /// The **`RTCTransportStats`** dictionary of the
@@ -738,38 +968,38 @@ extension type RTCTransportStats._(JSObject _) implements RTCStats, JSObject {
     int selectedCandidatePairChanges,
   });
 
-  external set packetsSent(int value);
   external int get packetsSent;
-  external set packetsReceived(int value);
+  external set packetsSent(int value);
   external int get packetsReceived;
-  external set bytesSent(int value);
+  external set packetsReceived(int value);
   external int get bytesSent;
-  external set bytesReceived(int value);
+  external set bytesSent(int value);
   external int get bytesReceived;
-  external set iceRole(RTCIceRole value);
+  external set bytesReceived(int value);
   external RTCIceRole get iceRole;
-  external set iceLocalUsernameFragment(String value);
+  external set iceRole(RTCIceRole value);
   external String get iceLocalUsernameFragment;
-  external set dtlsState(RTCDtlsTransportState value);
+  external set iceLocalUsernameFragment(String value);
   external RTCDtlsTransportState get dtlsState;
-  external set iceState(RTCIceTransportState value);
+  external set dtlsState(RTCDtlsTransportState value);
   external RTCIceTransportState get iceState;
-  external set selectedCandidatePairId(String value);
+  external set iceState(RTCIceTransportState value);
   external String get selectedCandidatePairId;
-  external set localCertificateId(String value);
+  external set selectedCandidatePairId(String value);
   external String get localCertificateId;
-  external set remoteCertificateId(String value);
+  external set localCertificateId(String value);
   external String get remoteCertificateId;
-  external set tlsVersion(String value);
+  external set remoteCertificateId(String value);
   external String get tlsVersion;
-  external set dtlsCipher(String value);
+  external set tlsVersion(String value);
   external String get dtlsCipher;
-  external set dtlsRole(RTCDtlsRole value);
+  external set dtlsCipher(String value);
   external RTCDtlsRole get dtlsRole;
-  external set srtpCipher(String value);
+  external set dtlsRole(RTCDtlsRole value);
   external String get srtpCipher;
-  external set selectedCandidatePairChanges(int value);
+  external set srtpCipher(String value);
   external int get selectedCandidatePairChanges;
+  external set selectedCandidatePairChanges(int value);
 }
 
 /// The **`RTCIceCandidateStats`** dictionary of the
@@ -805,32 +1035,81 @@ extension type RTCIceCandidateStats._(JSObject _)
     RTCIceTcpCandidateType tcpType,
   });
 
-  external set transportId(String value);
+  /// The [RTCIceCandidateStats] dictionary's
+  /// **`transportId`** property is a string that uniquely
+  /// identifies the transport that produced the [RTCTransportStats] from which
+  /// information about this candidate was taken.
   external String get transportId;
-  external set address(String? value);
+  external set transportId(String value);
+
+  /// The **`address`** property of the
+  /// [RTCIceCandidateStats] dictionary indicates the address of the
+  /// candidate. While it's preferred that the address be specified as
+  /// an IPv4 or IPv6 numeric address, a fully-qualified domain name can be used
+  /// as
+  /// well.
+  ///
+  /// When a domain name is specified, the first IP address selected for that
+  /// address is used, even if the domain name maps to multiple IP addresses.
   external String? get address;
-  external set port(int value);
+  external set address(String? value);
+
+  /// The [RTCIceCandidateStats] dictionary's **`port`**
+  /// property specifies the network port used by the candidate.
   external int get port;
-  external set protocol(String value);
+  external set port(int value);
+
+  /// The [RTCIceCandidateStats] dictionary's
+  /// **`protocol`** property specifies the protocol the specified
+  /// candidate would use for communication with the remote peer.
   external String get protocol;
-  external set candidateType(RTCIceCandidateType value);
+  external set protocol(String value);
+
+  /// The [RTCIceCandidateStats] interface's
+  /// **`candidateType`** property is a string that indicates the
+  /// type of  candidate the object represents.
   external RTCIceCandidateType get candidateType;
-  external set priority(int value);
+  external set candidateType(RTCIceCandidateType value);
+
+  /// The [RTCIceCandidateStats] dictionary's
+  /// **`priority`** property is a positive integer value
+  /// indicating the priority (or desirability) of the described candidate.
+  ///
+  /// During  negotiation while setting up a WebRTC peer connection, the
+  /// priority values reported to the remote peer by a  are used
+  /// to determine which candidates are considered "more desirable". The higher
+  /// the value,
+  /// the more desirable the candidate is.
   external int get priority;
-  external set url(String value);
+  external set priority(int value);
+
+  /// The [RTCIceCandidateStats] dictionary's
+  /// **`url`** property specifies the URL of the
+  /// server from which the described candidate was obtained. This
+  /// property is _only_ available for local candidates.
   external String get url;
-  external set relayProtocol(RTCIceServerTransportProtocol value);
+  external set url(String value);
+
+  /// The [RTCIceCandidateStats] dictionary's
+  /// **`relayProtocol`** property specifies the protocol being used
+  /// by a local  candidate to communicate with the
+  /// server.
+  ///
+  /// The ICE protocol being used by the candidate otherwise can be obtained
+  /// from the
+  /// [RTCIceCandidateStats.protocol] property.
   external RTCIceServerTransportProtocol get relayProtocol;
-  external set foundation(String value);
+  external set relayProtocol(RTCIceServerTransportProtocol value);
   external String get foundation;
-  external set relatedAddress(String value);
+  external set foundation(String value);
   external String get relatedAddress;
-  external set relatedPort(int value);
+  external set relatedAddress(String value);
   external int get relatedPort;
-  external set usernameFragment(String value);
+  external set relatedPort(int value);
   external String get usernameFragment;
-  external set tcpType(RTCIceTcpCandidateType value);
+  external set usernameFragment(String value);
   external RTCIceTcpCandidateType get tcpType;
+  external set tcpType(RTCIceTcpCandidateType value);
 }
 
 /// The **`RTCIceCandidatePairStats`** dictionary of the
@@ -877,50 +1156,160 @@ extension type RTCIceCandidatePairStats._(JSObject _)
     int bytesDiscardedOnSend,
   });
 
-  external set transportId(String value);
+  /// The **`transportId`** property
+  /// uniquely identifies the [RTCIceTransport] that was inspected to obtain
+  /// the transport-related statistics contained in the
+  /// [RTCIceCandidatePairStats] object.
   external String get transportId;
-  external set localCandidateId(String value);
+  external set transportId(String value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`localCandidateId`** is a string that uniquely identifies
+  /// the local  candidate which was analyzed to generate the
+  /// [RTCIceCandidateStats] used to compute the statistics for this pair of
+  /// candidates.
   external String get localCandidateId;
-  external set remoteCandidateId(String value);
+  external set localCandidateId(String value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`remoteCandidateId`** is a string that uniquely identifies
+  /// the remote  candidate which was analyzed to generate the
+  /// [RTCIceCandidateStats] used to compute the statistics for this pair of
+  /// candidates.
   external String get remoteCandidateId;
-  external set state(RTCStatsIceCandidatePairState value);
+  external set remoteCandidateId(String value);
+
+  /// The **`state`** property is a string that indicates the state of the
+  /// checklist of which the candidate pair is a member.
   external RTCStatsIceCandidatePairState get state;
-  external set nominated(bool value);
+  external set state(RTCStatsIceCandidatePairState value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`nominated`** specifies whether or not the candidate pair
+  /// described by the underlying `RTCIceCandidatePair` has been nominated to be
+  /// used as the configuration for the WebRTC connection.
   external bool get nominated;
-  external set packetsSent(int value);
+  external set nominated(bool value);
   external int get packetsSent;
-  external set packetsReceived(int value);
+  external set packetsSent(int value);
   external int get packetsReceived;
-  external set bytesSent(int value);
+  external set packetsReceived(int value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`bytesSent`** indicates the total number of payload
+  /// bytes—that is, bytes which aren't overhead such as headers or padding—that
+  /// have been
+  /// sent so far on the connection described by the candidate pair.
+  ///
+  /// The [RTCIceCandidatePairStats.bytesReceived] property
+  /// reports the number of bytes received so far on the described connection.
   external int get bytesSent;
-  external set bytesReceived(int value);
+  external set bytesSent(int value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`bytesReceived`** indicates the total number of payload
+  /// bytes—that is, bytes which aren't overhead such as headers or padding—that
+  /// have been
+  /// received to date on the connection described by the candidate pair.
+  ///
+  /// The [RTCIceCandidatePairStats.bytesSent] property reports the
+  /// number of bytes sent so far on the described connection.
   external int get bytesReceived;
-  external set lastPacketSentTimestamp(DOMHighResTimeStamp value);
+  external set bytesReceived(int value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`lastPacketSentTimestamp`** indicates the time at which the
+  /// connection described by the candidate pair last sent a packet, not
+  /// including
+  /// packets.
   external DOMHighResTimeStamp get lastPacketSentTimestamp;
-  external set lastPacketReceivedTimestamp(DOMHighResTimeStamp value);
+  external set lastPacketSentTimestamp(DOMHighResTimeStamp value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`lastPacketReceivedTimestamp`** indicates the time at which
+  /// the connection described by the candidate pair last received a packet.
+  /// packets are not included.
   external DOMHighResTimeStamp get lastPacketReceivedTimestamp;
-  external set totalRoundTripTime(num value);
+  external set lastPacketReceivedTimestamp(DOMHighResTimeStamp value);
+
+  /// The [RTCIceCandidatePairStats] dictionary's
+  /// **`totalRoundTripTime`** property is the total time that has
+  /// elapsed between sending  requests and receiving the responses, for
+  /// all such requests that have been made so far on the pair of candidates
+  /// described by
+  /// this `RTCIceCandidatePairStats` object. This value includes both
+  /// connectivity check and consent check requests.
   external num get totalRoundTripTime;
-  external set currentRoundTripTime(num value);
+  external set totalRoundTripTime(num value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`currentRoundTripTime`** is a floating-point value
+  /// indicating the number of seconds it takes for data to be sent by this peer
+  /// to the
+  /// remote peer and back over the connection described by this pair of
+  /// candidates.
   external num get currentRoundTripTime;
-  external set availableOutgoingBitrate(num value);
+  external set currentRoundTripTime(num value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`availableOutgoingBitrate`** returns a value indicative of
+  /// the available outbound capacity of the network connection represented by
+  /// the candidate
+  /// pair. The higher the value, the more bandwidth you can assume is available
+  /// for
+  /// outgoing data.
+  ///
+  /// You can get the incoming available bitrate from
+  /// [RTCIceCandidatePairStats.availableIncomingBitrate].
   external num get availableOutgoingBitrate;
-  external set availableIncomingBitrate(num value);
+  external set availableOutgoingBitrate(num value);
+
+  /// The [RTCIceCandidatePairStats] property
+  /// **`availableIncomingBitrate`** returns a value indicative of
+  /// the available inbound capacity of the network connection represented by
+  /// the candidate
+  /// pair. The higher the value, the more bandwidth you can assume is available
+  /// for
+  /// incoming data.
+  ///
+  /// You can get the outgoing available bitrate from
+  /// [RTCIceCandidatePairStats.availableoutgoingBitrate].
   external num get availableIncomingBitrate;
-  external set requestsReceived(int value);
+  external set availableIncomingBitrate(num value);
+
+  /// The [RTCIceCandidatePairStats] dictionary's
+  /// **`requestsReceived`** property indicates the total number of
+  /// connectivity check requests that have been received so far on the
+  /// connection described by this pairing of candidates.
   external int get requestsReceived;
-  external set requestsSent(int value);
+  external set requestsReceived(int value);
+
+  /// The [RTCIceCandidatePairStats] dictionary's
+  /// **`requestsSent`** property indicates the total number of
+  /// connectivity check requests that have been sent so far on the
+  /// connection described by this pair of candidates.
   external int get requestsSent;
-  external set responsesReceived(int value);
+  external set requestsSent(int value);
+
+  /// The **`responsesReceived`** property
+  /// in the [RTCIceCandidatePairStats] dictionary indicates the total number
+  /// of  connectivity check responses that have been received on the
+  /// connection described by this pair of candidates.
   external int get responsesReceived;
-  external set responsesSent(int value);
+  external set responsesReceived(int value);
+
+  /// The [RTCIceCandidatePairStats] dictionary's
+  /// **`responsesSent`** property indicates the total number of
+  /// connectivity check responses that have been sent so far on the
+  /// connection described by this pair of candidates.
   external int get responsesSent;
-  external set consentRequestsSent(int value);
+  external set responsesSent(int value);
   external int get consentRequestsSent;
-  external set packetsDiscardedOnSend(int value);
+  external set consentRequestsSent(int value);
   external int get packetsDiscardedOnSend;
-  external set bytesDiscardedOnSend(int value);
+  external set packetsDiscardedOnSend(int value);
   external int get bytesDiscardedOnSend;
+  external set bytesDiscardedOnSend(int value);
 }
 
 /// The **`RTCCertificateStats`** dictionary of the
@@ -947,12 +1336,27 @@ extension type RTCCertificateStats._(JSObject _) implements RTCStats, JSObject {
     String issuerCertificateId,
   });
 
-  external set fingerprint(String value);
+  /// The **`fingerprint`** property of the [RTCCertificateStats] dictionary is
+  /// a string containing the fingerprint value of the associated
+  /// [RTCCertificate].
   external String get fingerprint;
-  external set fingerprintAlgorithm(String value);
+  external set fingerprint(String value);
+
+  /// The **`fingerprintAlgorithm`** property of the [RTCCertificateStats]
+  /// dictionary is a string containing the name of the hash function used to
+  /// generate the [RTCCertificateStats.fingerprint] value in the associated
+  /// [RTCCertificate].
   external String get fingerprintAlgorithm;
-  external set base64Certificate(String value);
+  external set fingerprintAlgorithm(String value);
+
+  /// The **`base64Certificate`** property of the [RTCCertificateStats]
+  /// dictionary is a string containing the base-64 representation of the
+  /// DER-encoded certificate.
+  ///
+  /// This is essentially an encoding of the original certificate as a string
+  /// that can safely serialized and deserialized when sent over an IP network.
   external String get base64Certificate;
-  external set issuerCertificateId(String value);
+  external set base64Certificate(String value);
   external String get issuerCertificateId;
+  external set issuerCertificateId(String value);
 }
diff --git a/lib/src/dom/websockets.dart b/lib/src/dom/websockets.dart
index abec7698..c730309f 100644
--- a/lib/src/dom/websockets.dart
+++ b/lib/src/dom/websockets.dart
@@ -69,21 +69,53 @@ extension type WebSocket._(JSObject _) implements EventTarget, JSObject {
   /// connection is in the `CLOSING` or `CLOSED` states, the browser will
   /// silently discard the data.
   external void send(JSAny data);
+
+  /// The **`WebSocket.url`** read-only property returns the absolute
+  /// URL of the [WebSocket] as resolved by the constructor.
   external String get url;
+
+  /// The **`WebSocket.readyState`** read-only property returns the
+  /// current state of the [WebSocket] connection.
   external int get readyState;
+
+  /// The **`WebSocket.bufferedAmount`** read-only property returns
+  /// the number of bytes of data that have been queued using calls to
+  /// [`send()`](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send)
+  /// but
+  /// not yet transmitted to the network. This value resets to zero once all
+  /// queued data has
+  /// been sent. This value does not reset to zero when the connection is
+  /// closed; if you keep
+  /// calling
+  /// [`send()`](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send),
+  /// this will continue to climb.
   external int get bufferedAmount;
-  external set onopen(EventHandler value);
   external EventHandler get onopen;
-  external set onerror(EventHandler value);
+  external set onopen(EventHandler value);
   external EventHandler get onerror;
-  external set onclose(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onclose;
+  external set onclose(EventHandler value);
+
+  /// The **`WebSocket.extensions`** read-only property returns the
+  /// extensions selected by the server. This is currently only the empty string
+  /// or a list of
+  /// extensions as negotiated by the connection.
   external String get extensions;
+
+  /// The **`WebSocket.protocol`** read-only property returns the
+  /// name of the sub-protocol the server selected; this will be one of the
+  /// strings specified
+  /// in the `protocols` parameter when creating the [WebSocket]
+  /// object, or the empty string if no connection is established.
   external String get protocol;
-  external set onmessage(EventHandler value);
   external EventHandler get onmessage;
-  external set binaryType(BinaryType value);
+  external set onmessage(EventHandler value);
+
+  /// The **`WebSocket.binaryType`** property controls the type of
+  /// binary data being received over the WebSocket connection.
   external BinaryType get binaryType;
+  external set binaryType(BinaryType value);
 }
 
 /// A `CloseEvent` is sent to clients using  when the connection is closed. This
@@ -100,8 +132,20 @@ extension type CloseEvent._(JSObject _) implements Event, JSObject {
     CloseEventInit eventInitDict,
   ]);
 
+  /// The **`wasClean`** read-only property of the [CloseEvent] interface
+  /// returns `true` if the connection closed cleanly.
   external bool get wasClean;
+
+  /// The **`code`** read-only property of the [CloseEvent] interface returns a
+  /// [WebSocket connection close code](https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.5)
+  /// indicating the reason the server gave for closing the connection.
   external int get code;
+
+  /// The **`reason`** read-only property of the [CloseEvent] interface returns
+  /// the
+  /// [WebSocket connection close reason](https://www.rfc-editor.org/rfc/rfc6455.html#section-7.1.6)
+  /// the server gave for closing the connection; that is, a concise
+  /// human-readable prose explanation for the closure.
   external String get reason;
 }
 extension type CloseEventInit._(JSObject _) implements EventInit, JSObject {
@@ -114,10 +158,10 @@ extension type CloseEventInit._(JSObject _) implements EventInit, JSObject {
     String reason,
   });
 
-  external set wasClean(bool value);
   external bool get wasClean;
-  external set code(int value);
+  external set wasClean(bool value);
   external int get code;
-  external set reason(String value);
+  external set code(int value);
   external String get reason;
+  external set reason(String value);
 }
diff --git a/lib/src/dom/webvtt.dart b/lib/src/dom/webvtt.dart
index 0a1e569a..f0afeb78 100644
--- a/lib/src/dom/webvtt.dart
+++ b/lib/src/dom/webvtt.dart
@@ -42,26 +42,57 @@ extension type VTTCue._(JSObject _) implements TextTrackCue, JSObject {
   /// The **`getCueAsHTML()`** method of the [VTTCue] interface returns a
   /// [DocumentFragment] containing the cue content.
   external DocumentFragment getCueAsHTML();
-  external set region(VTTRegion? value);
+
+  /// The **`region`** property of the [VTTCue] interface returns and sets the
+  /// [VTTRegion] that this cue belongs to.
   external VTTRegion? get region;
-  external set vertical(DirectionSetting value);
+  external set region(VTTRegion? value);
+
+  /// The **`vertical`** property of the [VTTCue] interface is a string
+  /// representing the cue's writing direction.
   external DirectionSetting get vertical;
-  external set snapToLines(bool value);
+  external set vertical(DirectionSetting value);
+
+  /// The **`snapToLines`** property of the [VTTCue] interface is a `Boolean`
+  /// indicating if the [VTTCue.line] property is an integer number of lines, or
+  /// a percentage of the video size.
   external bool get snapToLines;
-  external set line(LineAndPositionSetting value);
+  external set snapToLines(bool value);
+
+  /// The **`line`** property of the [VTTCue] interface represents the cue line
+  /// of this WebVTT cue.
   external LineAndPositionSetting get line;
-  external set lineAlign(LineAlignSetting value);
+  external set line(LineAndPositionSetting value);
+
+  /// The **`lineAlign`** property of the [VTTCue] interface represents the
+  /// alignment of this VTT cue.
   external LineAlignSetting get lineAlign;
-  external set position(LineAndPositionSetting value);
+  external set lineAlign(LineAlignSetting value);
+
+  /// The **`position`** property of the [VTTCue] interface represents the
+  /// indentation of the cue within the line.
   external LineAndPositionSetting get position;
-  external set positionAlign(PositionAlignSetting value);
+  external set position(LineAndPositionSetting value);
+
+  /// The **`positionAlign`** property of the [VTTCue] interface is used to
+  /// determine what [VTTCue.position] is anchored to.
   external PositionAlignSetting get positionAlign;
-  external set size(num value);
+  external set positionAlign(PositionAlignSetting value);
+
+  /// The **`size`** property of the [VTTCue] interface represents the size of
+  /// the cue as a percentage of the video size.
   external num get size;
-  external set align(AlignSetting value);
+  external set size(num value);
+
+  /// The **`align`** property of the [VTTCue] interface represents the
+  /// alignment of all of the lines of text in the text box.
   external AlignSetting get align;
-  external set text(String value);
+  external set align(AlignSetting value);
+
+  /// The **`text`** property of the [VTTCue] interface represents the text
+  /// contents of the cue.
   external String get text;
+  external set text(String value);
 }
 
 /// The `VTTRegion` interface—part of the API for handling WebVTT (text tracks
@@ -75,20 +106,20 @@ extension type VTTCue._(JSObject _) implements TextTrackCue, JSObject {
 extension type VTTRegion._(JSObject _) implements JSObject {
   external factory VTTRegion();
 
-  external set id(String value);
   external String get id;
-  external set width(num value);
+  external set id(String value);
   external num get width;
-  external set lines(int value);
+  external set width(num value);
   external int get lines;
-  external set regionAnchorX(num value);
+  external set lines(int value);
   external num get regionAnchorX;
-  external set regionAnchorY(num value);
+  external set regionAnchorX(num value);
   external num get regionAnchorY;
-  external set viewportAnchorX(num value);
+  external set regionAnchorY(num value);
   external num get viewportAnchorX;
-  external set viewportAnchorY(num value);
+  external set viewportAnchorX(num value);
   external num get viewportAnchorY;
-  external set scroll(ScrollSetting value);
+  external set viewportAnchorY(num value);
   external ScrollSetting get scroll;
+  external set scroll(ScrollSetting value);
 }
diff --git a/lib/src/dom/xhr.dart b/lib/src/dom/xhr.dart
index d2250692..2b25c137 100644
--- a/lib/src/dom/xhr.dart
+++ b/lib/src/dom/xhr.dart
@@ -31,20 +31,20 @@ typedef XMLHttpRequestResponseType = String;
 /// [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestEventTarget).
 extension type XMLHttpRequestEventTarget._(JSObject _)
     implements EventTarget, JSObject {
-  external set onloadstart(EventHandler value);
   external EventHandler get onloadstart;
-  external set onprogress(EventHandler value);
+  external set onloadstart(EventHandler value);
   external EventHandler get onprogress;
-  external set onabort(EventHandler value);
+  external set onprogress(EventHandler value);
   external EventHandler get onabort;
-  external set onerror(EventHandler value);
+  external set onabort(EventHandler value);
   external EventHandler get onerror;
-  external set onload(EventHandler value);
+  external set onerror(EventHandler value);
   external EventHandler get onload;
-  external set ontimeout(EventHandler value);
+  external set onload(EventHandler value);
   external EventHandler get ontimeout;
-  external set onloadend(EventHandler value);
+  external set ontimeout(EventHandler value);
   external EventHandler get onloadend;
+  external set onloadend(EventHandler value);
 }
 
 /// @AvailableInWorkers("notservice")
@@ -211,21 +211,227 @@ extension type XMLHttpRequest._(JSObject _)
   /// it
   /// as such. This method must be called before calling [XMLHttpRequest.send].
   external void overrideMimeType(String mime);
-  external set onreadystatechange(EventHandler value);
   external EventHandler get onreadystatechange;
+  external set onreadystatechange(EventHandler value);
+
+  /// The **XMLHttpRequest.readyState** property returns the state an
+  /// XMLHttpRequest client is in. An XHR client exists in one of the following
+  /// states:
+  ///
+  /// | Value | State              | Description                                                     |
+  /// | ----- | ------------------ | --------------------------------------------------------------- |
+  /// | `0`   | `UNSENT`           | Client has been created. `open()` not called yet.               |
+  /// | `1`   | `OPENED`           | `open()` has been called.                                       |
+  /// | `2`   | `HEADERS_RECEIVED` | `send()` has been called, and headers and status are available. |
+  /// | `3`   | `LOADING`          | Downloading; `responseText` holds partial data.                 |
+  /// | `4`   | `DONE`             | The operation is complete.                                      |
+  ///
+  /// - UNSENT
+  ///   - : The XMLHttpRequest client has been created, but the open() method hasn't been called yet.
+  /// - OPENED
+  ///   - : open() method has been invoked. During this state, the request headers can be set using the [setRequestHeader()](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/setRequestHeader) method and the [send()](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/send) method can be called which will initiate the fetch.
+  /// - HEADERS_RECEIVED
+  ///   - : send() has been called, all redirects (if any) have been followed and the response headers have been received.
+  /// - LOADING
+  ///   - : Response's body is being received. If [`responseType`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseType) is "text" or empty string, [`responseText`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseText) will have the partial text response as it loads.
+  /// - DONE
+  ///   - : The fetch operation is complete. This could mean that either the data transfer has been completed successfully or failed.
   external int get readyState;
-  external set timeout(int value);
+
+  /// The **`XMLHttpRequest.timeout`** property is an `unsigned long`
+  /// representing the number of milliseconds a request can take before
+  /// automatically being terminated. The default value is 0, which means there
+  /// is no timeout. Timeout shouldn't be used for synchronous XMLHttpRequests
+  /// requests used in a  or it will throw an `InvalidAccessError` exception.
+  /// When a timeout happens, a
+  /// [timeout](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/timeout_event)
+  /// event is fired.
+  ///
+  /// > **Note:** You may not use a timeout for synchronous requests with an
+  /// > owning window.
+  ///
+  /// [Using a timeout with an asynchronous request](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest_API/Synchronous_and_Asynchronous_Requests#example_using_a_timeout).
   external int get timeout;
-  external set withCredentials(bool value);
+  external set timeout(int value);
+
+  /// The **`XMLHttpRequest.withCredentials`** property is a boolean value that
+  /// indicates whether or not cross-site `Access-Control` requests should be
+  /// made using credentials such as cookies, authorization headers or TLS
+  /// client certificates. Setting `withCredentials` has no effect on
+  /// same-origin requests.
+  ///
+  /// In addition, this flag is also used to indicate when cookies are to be
+  /// ignored in the response. The default is `false`. `XMLHttpRequest`
+  /// responses from a different domain cannot set cookie values for their own
+  /// domain unless `withCredentials` is set to `true` before making the
+  /// request. The third-party cookies obtained by setting `withCredentials` to
+  /// true will still honor same-origin policy and hence can not be accessed by
+  /// the requesting script through
+  /// [document.cookie](https://developer.mozilla.org/en-US/docs/Web/API/Document/cookie)
+  /// or from response headers.
+  ///
+  /// > **Note:** This never affects same-origin requests.
+  ///
+  /// > **Note:** `XMLHttpRequest` responses from a different domain _cannot_
+  /// > set cookie values for their own domain unless `withCredentials` is set
+  /// > to `true` before making the request, regardless of `Access-Control-`
+  /// > header values.
   external bool get withCredentials;
+  external set withCredentials(bool value);
+
+  /// The [XMLHttpRequest] `upload` property returns an [XMLHttpRequestUpload]
+  /// object that can be observed to monitor an upload's progress.
+  ///
+  /// It is an opaque object, but because it's also an
+  /// [XMLHttpRequestEventTarget], event listeners can be attached to track its
+  /// process.
+  ///
+  /// > **Note:** Attaching event listeners to this object prevents the request
+  /// > from being a "simple request" and will cause a preflight request to be
+  /// > issued if cross-origin; see
+  /// > [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS). Because
+  /// > of this, event listeners need to be registered before calling
+  /// > [XMLHttpRequest.send] or upload events won't be dispatched.
+  ///
+  /// > **Note:** The spec also seems to indicate that event listeners should be
+  /// > attached after [XMLHttpRequest.open]. However, browsers are buggy on
+  /// > this matter, and often need the listeners to be registered _before_
+  /// > [XMLHttpRequest.open] to work.
+  ///
+  /// The following events can be triggered on an upload object and used to
+  /// monitor the upload:
+  ///
+  /// <table class="no-markdown">
+  ///   <thead>
+  ///     <tr>
+  ///       <th>Event</th>
+  ///       <th>Description</th>
+  ///     </tr>
+  ///   </thead>
+  ///   <tbody>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.loadstart_event]</td>
+  ///       <td>The upload has begun.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.progress_event]</td>
+  ///       <td>
+  /// Periodically delivered to indicate the amount of progress made so far.
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.abort_event]</td>
+  ///       <td>The upload operation was aborted.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.error_event]</td>
+  ///       <td>The upload failed due to an error.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.load_event]</td>
+  ///       <td>The upload completed successfully.</td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.timeout_event]</td>
+  ///       <td>
+  /// The upload timed out because a reply did not arrive within the time
+  /// interval specified by the
+  /// [XMLHttpRequest.timeout].
+  ///       </td>
+  ///     </tr>
+  ///     <tr>
+  ///       <td>[XMLHttpRequestUpload.loadend_event]</td>
+  ///       <td>
+  /// The upload finished. This event does not differentiate between success
+  /// or failure, and is sent at the end of the upload regardless of the
+  /// outcome. Prior to this event, one of <code>load</code>,
+  ///         <code>error</code>, <code>abort</code>, or <code>timeout</code> will
+  /// already have been delivered to indicate why the upload ended.
+  ///       </td>
+  ///     </tr>
+  ///   </tbody>
+  /// </table>
   external XMLHttpRequestUpload get upload;
+
+  /// The read-only **`XMLHttpRequest.responseURL`** property returns the
+  /// serialized URL of the response or the empty string if the URL is `null`.
+  /// If the URL is returned, any URL fragment present in the URL will be
+  /// stripped away. The value of `responseURL` will be the final URL obtained
+  /// after any redirects.
   external String get responseURL;
+
+  /// The read-only **`XMLHttpRequest.status`** property returns the numerical
+  /// HTTP
+  /// [status code](https://developer.mozilla.org/en-US/docs/Web/HTTP/Status) of
+  /// the `XMLHttpRequest`'s response.
+  ///
+  /// Before the request completes, the value of `status` is 0. Browsers also
+  /// report a status of 0 in case of `XMLHttpRequest` errors.
   external int get status;
+
+  /// The read-only **`XMLHttpRequest.statusText`** property returns a string
+  /// containing the response's status message as returned by the HTTP server.
+  /// Unlike
+  /// [`XMLHTTPRequest.status`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/status)
+  /// which indicates a numerical status code, this property contains the _text_
+  /// of the response status, such as "OK" or "Not Found". If the request's
+  /// [`readyState`](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/readyState)
+  /// is in `UNSENT` or `OPENED` state, the value of `statusText` will be an
+  /// empty string.
+  ///
+  /// If the server response doesn't explicitly specify a status text,
+  /// `statusText` will assume the default value "OK".
+  ///
+  /// > **Note:** Responses over an HTTP/2 connection will always have an empty
+  /// > string as status message as HTTP/2 does not support them.
   external String get statusText;
-  external set responseType(XMLHttpRequestResponseType value);
+
+  /// The [XMLHttpRequest] property
+  /// **`responseType`** is an enumerated string value specifying
+  /// the type of data contained in the response.
+  ///
+  /// It also lets the author change the
+  /// response type. If an empty string is set as the value of `responseType`,
+  /// the
+  /// default value of `text` is used.
   external XMLHttpRequestResponseType get responseType;
+  external set responseType(XMLHttpRequestResponseType value);
+
+  /// The [XMLHttpRequest]
+  /// **`response`** property returns the response's body content as
+  /// an `ArrayBuffer`, a [Blob], a [Document],
+  /// a JavaScript `Object`, or a string, depending on the value
+  /// of the request's [XMLHttpRequest.responseType]
+  /// property.
   external JSAny? get response;
+
+  /// The read-only [XMLHttpRequest] property
+  /// **`responseText`** returns the text received from a server
+  /// following a request being sent.
   external String get responseText;
+
+  /// The **`XMLHttpRequest.responseXML`** read-only property returns
+  /// a [Document] containing the HTML or XML retrieved by the request; or
+  /// `null` if the request was unsuccessful, has not yet been sent, or if the
+  /// data
+  /// can't be parsed as XML or HTML.
+  ///
+  /// > **Note:** The name `responseXML` is an artifact of this
+  /// > property's history; it works for both HTML and XML.
+  ///
+  /// Usually, the response is parsed as "`text/xml`". If the
+  /// [XMLHttpRequest.responseType] is set to
+  /// "`document`" and the request was made asynchronously, instead the response
+  /// is
+  /// parsed as "`text/html`". `responseXML` is `null` for
+  /// any other types of data, as well as for [`data:`
+  /// URLs](https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URLs).
+  ///
+  /// If the server doesn't specify the  as
+  /// "`text/xml`" or "`application/xml`", you can use
+  /// [XMLHttpRequest.overrideMimeType] to parse it as XML anyway.
+  ///
+  /// This property isn't available to workers.
   external Document? get responseXML;
 }
 
@@ -316,8 +522,33 @@ extension type ProgressEvent._(JSObject _) implements Event, JSObject {
     ProgressEventInit eventInitDict,
   ]);
 
+  /// The
+  /// **`ProgressEvent.lengthComputable`** read-only property is a
+  /// boolean flag indicating if the resource concerned by the
+  /// [ProgressEvent] has a length that can be calculated. If not, the
+  /// [ProgressEvent.total] property has no significant value.
   external bool get lengthComputable;
+
+  /// The **`ProgressEvent.loaded`** read-only property is an integer
+  /// representing the amount of work already performed by the underlying
+  /// process. The ratio
+  /// of work done can be calculated with the property and
+  /// `ProgressEvent.total`.
+  /// When downloading a resource using HTTP, this value is specified in bytes
+  /// (not bits), and only represents the part of the content
+  /// itself, not headers and other overhead.
   external int get loaded;
+
+  /// The **`ProgressEvent.total`** read-only property is an unsigned
+  /// 64-bit integer value indicating the total size of the data being processed
+  /// or
+  /// transmitted. In the case of an HTTP transmission, this is the size of the
+  /// body of the
+  /// message (the `Content-Length`), and does not include headers and other
+  /// overhead.
+  ///
+  /// If the event's [ProgressEvent.lengthComputable]
+  /// property is `false`, this value is meaningless and should be ignored.
   external int get total;
 }
 extension type ProgressEventInit._(JSObject _) implements EventInit, JSObject {
@@ -330,10 +561,10 @@ extension type ProgressEventInit._(JSObject _) implements EventInit, JSObject {
     int total,
   });
 
-  external set lengthComputable(bool value);
   external bool get lengthComputable;
-  external set loaded(int value);
+  external set lengthComputable(bool value);
   external int get loaded;
-  external set total(int value);
+  external set loaded(int value);
   external int get total;
+  external set total(int value);
 }
diff --git a/tool/generator/translator.dart b/tool/generator/translator.dart
index 78f1d9b1..c143c490 100644
--- a/tool/generator/translator.dart
+++ b/tool/generator/translator.dart
@@ -526,7 +526,9 @@ class Translator {
           _interfacelikes[name]!.update(interfacelike);
         } else {
           _interfacelikes[name] = _PartialInterfacelike(
-              interfacelike, docProvider.interfaceFor(name));
+            interfacelike,
+            docProvider.interfaceFor(name),
+          );
         }
       }
       for (final interfacelike in [
@@ -775,72 +777,102 @@ class Translator {
     );
   }
 
-  List<code.Method> _getterSetter(
-      {required String fieldName,
-      required code.Reference Function() getType,
-      required bool isStatic,
-      required bool readOnly}) {
+  List<code.Method> _getterSetter({
+    required String fieldName,
+    required code.Reference Function() getType,
+    required bool isStatic,
+    required bool readOnly,
+    required MdnInterface? mdnInterface,
+  }) {
     final memberName = _MemberName(fieldName);
     final name = memberName.name;
+    final docs = mdnInterface?.propertyFor(name)?.formattedDocs ?? [];
+
     return [
-      if (!readOnly)
-        code.Method((b) => b
+      code.Method(
+        (b) => b
           ..annotations.addAll(_jsOverride(memberName.jsOverride))
           ..external = true
           ..static = isStatic
-          ..type = code.MethodType.setter
+          ..returns = getType()
+          ..type = code.MethodType.getter
           ..name = name
-          ..requiredParameters.add(code.Parameter((b) => b
-            ..type = getType()
-            ..name = 'value'))),
-      code.Method((b) => b
-        ..annotations.addAll(_jsOverride(memberName.jsOverride))
+          ..docs.addAll(docs),
+      ),
+      if (!readOnly)
+        code.Method(
+          (b) => b
+            ..annotations.addAll(_jsOverride(memberName.jsOverride))
+            ..external = true
+            ..static = isStatic
+            ..type = code.MethodType.setter
+            ..name = name
+            ..requiredParameters.add(
+              code.Parameter(
+                (b) => b
+                  ..type = getType()
+                  ..name = 'value',
+              ),
+            ),
+        ),
+    ];
+  }
+
+  List<code.Method> _getterSetterWithIDLType({
+    required String fieldName,
+    required idl.IDLType type,
+    required bool isStatic,
+    required bool readOnly,
+    required MdnInterface? mdnInterface,
+  }) {
+    return _getterSetter(
+      fieldName: fieldName,
+      getType: () => _idlTypeToTypeReference(type),
+      isStatic: isStatic,
+      readOnly: readOnly,
+      mdnInterface: mdnInterface,
+    );
+  }
+
+  List<code.Method> _attribute(
+      idl.Attribute attribute, MdnInterface? mdnInterface) {
+    return _getterSetterWithIDLType(
+      fieldName: attribute.name,
+      type: attribute.idlType,
+      readOnly: attribute.readonly,
+      isStatic: attribute.special == 'static',
+      mdnInterface: mdnInterface,
+    );
+  }
+
+  code.Method _constant(idl.Constant constant) {
+    return code.Method(
+      (b) => b
         ..external = true
-        ..static = isStatic
-        ..returns = getType()
+        ..static = true
+        ..returns = _idlTypeToTypeReference(constant.idlType)
         ..type = code.MethodType.getter
-        ..name = name)
-    ];
+        ..name = constant.name,
+    );
   }
 
-  List<code.Method> _getterSetterWithIDLType(
-          {required String fieldName,
-          required idl.IDLType type,
-          required bool isStatic,
-          required bool readOnly}) =>
-      _getterSetter(
-          fieldName: fieldName,
-          getType: () => _idlTypeToTypeReference(type),
-          isStatic: isStatic,
-          readOnly: readOnly);
-
-  List<code.Method> _attribute(idl.Attribute attribute) =>
-      _getterSetterWithIDLType(
-          fieldName: attribute.name,
-          type: attribute.idlType,
-          readOnly: attribute.readonly,
-          isStatic: attribute.special == 'static');
-
-  code.Method _constant(idl.Constant constant) => code.Method((b) => b
-    ..external = true
-    ..static = true
-    ..returns = _idlTypeToTypeReference(constant.idlType)
-    ..type = code.MethodType.getter
-    ..name = constant.name);
-
-  List<code.Method> _field(idl.Field field) => _getterSetterWithIDLType(
+  List<code.Method> _field(idl.Field field, MdnInterface? mdnInterface) {
+    return _getterSetterWithIDLType(
       fieldName: field.name,
       type: field.idlType,
       readOnly: false,
-      isStatic: false);
+      isStatic: false,
+      mdnInterface: mdnInterface,
+    );
+  }
 
-  List<code.Method> _member(idl.Member member) {
+  List<code.Method> _member(idl.Member member, MdnInterface? mdnInterface) {
     final type = member.type;
     return switch (type) {
       'operation' => throw Exception('Should be handled explicitly.'),
-      'attribute' => _attribute(member as idl.Attribute),
+      'attribute' => _attribute(member as idl.Attribute, mdnInterface),
       'const' => [_constant(member as idl.Constant)],
-      'field' => _field(member as idl.Field),
+      'field' => _field(member as idl.Field, mdnInterface),
       'iterable' ||
       'maplike' ||
       'setlike' =>
@@ -850,20 +882,28 @@ class Translator {
     };
   }
 
-  List<code.Method> _members(List<idl.Member> members) =>
-      [for (final member in members) ..._member(member)];
+  List<code.Method> _members(
+      List<idl.Member> members, MdnInterface? mdnInterface) {
+    return [
+      for (final member in members) ..._member(member, mdnInterface),
+    ];
+  }
 
   List<code.Method> _operations(List<_OverridableOperation> operations) =>
       [for (final operation in operations) _operation(operation)];
 
-  List<code.Method> _cssStyleDeclarationProperties() => [
-        for (final style in _cssStyleDeclarations)
-          ..._getterSetter(
-              fieldName: style,
-              getType: () => code.TypeReference((b) => b..symbol = 'String'),
-              isStatic: false,
-              readOnly: false),
-      ];
+  List<code.Method> _cssStyleDeclarationProperties() {
+    return [
+      for (final style in _cssStyleDeclarations)
+        ..._getterSetter(
+          fieldName: style,
+          getType: () => code.TypeReference((b) => b..symbol = 'String'),
+          isStatic: false,
+          readOnly: false,
+          mdnInterface: null,
+        ),
+    ];
+  }
 
   // If [jsName] is an element type, creates a constructor for each tag that the
   // element interface corresponds to using either `createElement` or
@@ -911,13 +951,17 @@ class Translator {
     return elementConstructors;
   }
 
-  code.Extension _extension(
-          {required _RawType type,
-          required List<idl.Member> extensionMembers}) =>
-      code.Extension((b) => b
+  code.Extension _extension({
+    required _RawType type,
+    required List<idl.Member> extensionMembers,
+  }) {
+    return code.Extension(
+      (b) => b
         ..name = '${type.type.snakeToPascal}Extension'
         ..on = _typeReference(type)
-        ..methods.addAll(_members(extensionMembers)));
+        ..methods.addAll(_members(extensionMembers, null)),
+    );
+  }
 
   code.ExtensionType _extensionType({
     required String jsName,
@@ -956,9 +1000,9 @@ class Translator {
           .followedBy(_elementConstructors(
               jsName, dartClassName, representationFieldName)))
       ..methods.addAll(_operations(staticOperations)
-          .followedBy(_members(staticMembers))
+          .followedBy(_members(staticMembers, mdnInterface))
           .followedBy(_operations(operations))
-          .followedBy(_members(members))
+          .followedBy(_members(members, mdnInterface))
           .followedBy(dartClassName == 'CSSStyleDeclaration'
               ? _cssStyleDeclarationProperties()
               : [])));
@@ -996,17 +1040,18 @@ class Translator {
     return [
       if (getterName != null) _topLevelGetter(rawType, getterName),
       _extensionType(
-          jsName: jsName,
-          dartClassName: dartClassName,
-          mdnInterface: mdnInterface,
-          interfaceStatus: interfaceStatus,
-          implements: implements,
-          constructor: interfacelike.constructor,
-          operations: operations,
-          staticOperations: staticOperations,
-          members: members,
-          staticMembers: interfacelike.staticMembers,
-          isObjectLiteral: isDictionary),
+        jsName: jsName,
+        dartClassName: dartClassName,
+        mdnInterface: mdnInterface,
+        interfaceStatus: interfaceStatus,
+        implements: implements,
+        constructor: interfacelike.constructor,
+        operations: operations,
+        staticOperations: staticOperations,
+        members: members,
+        staticMembers: interfacelike.staticMembers,
+        isObjectLiteral: isDictionary,
+      ),
       if (extensionMembers.isNotEmpty)
         _extension(type: rawType, extensionMembers: extensionMembers)
     ];
@@ -1069,9 +1114,6 @@ class Translator {
   bool _shouldGenerate(String name, _Library library) {
     // These libraries wouldn't normally qualify for generation but have types
     // that are referenced from generated code.
-    // TODO(devoncarew): We should either remove the members that reference the
-    // types or decide the library should be generated irrespective of the BCD
-    // info.
     const allowList = {
       'css-typed-om',
       'css-view-transitions',