@suppress annotations

If you cannot easily fix a JsCompiler warning, you can suppress it using the @suppress annotation.

The @suppress annotation is usable in a few places:

• a function's JSDoc block
• the @fileoverview block
• any variable declaration, assignment, or top-level expression such as a function call.

Example

/**
 * ...
 * Good; suppresses within the entire function.
 * Also, this suppresses multiple warnings.
 * @suppress {visibility|underscore}
 */
function blah() {
  /** @suppress {visibility} */ // Good; suppresses within this declaration only.
  otherClass.privateField_ = blah;

  /** @suppress {checkTypes} */  // Good; suppresses the error in this line only
  foo(incompatible.type);

  /** @suppress {missingRequire} */  // Good; suppresses the missing require
  foo(blah.not.required);

  /** @suppress {checkTypes} */  // Bad; suppression not allowed here
  if (foo(incompatible.type)) {
    console.log("blah");
  }
}

Other locations

Some specific @suppress annotations are allowed elsewhere:

• @suppress {extraRequire} is valid just before a goog.require(...); statement.
• @suppress {missingRequire} is valid on any statement.
• @suppress {with} is valid on with statements e.g. /** @suppress {with} */ with(Math) { alert(PI);} suppresses JSC_USE_OF_WITH warning.

Suppression tags

The full list of suppressions accepted by the parser can be found in the jsdoc.suppressions list here.

The specific warnings included in each suppression can be found here (note that not all groups are recognized as suppressions).

Error to suppression map

This table maps all suppressible error ids to the corresponding @suppress tag. Note that some errors are not suppressible in code and are omitted from this table.

These suppression tags are not canonical. In some cases multiple tags may suppress the same error.

Error	Suppression tag
JSC_ABSTRACT_METHOD_IN_CONCRETE_CLASS	checkTypes
JSC_ABSTRACT_METHOD_NOT_IMPLEMENTED	checkTypes
JSC_ABSTRACT_SUPER_METHOD_NOT_USABLE	checkTypes
JSC_ARGUMENTS_ASSIGNMENT	es5Strict
JSC_ARGUMENTS_CALLEE_FORBIDDEN	es5Strict
JSC_ARGUMENTS_CALLER_FORBIDDEN	es5Strict
JSC_ARGUMENTS_DECLARATION	es5Strict
JSC_ARROW_FUNCTION_AS_CONSTRUCTOR	misplacedTypeAnnotation
JSC_BAD_JSDOC_ANNOTATION	nonStandardJsDocs
JSC_BAD_PACKAGE_PROPERTY_ACCESS	visibility
JSC_BAD_PRIVATE_GLOBAL_ACCESS	visibility
JSC_BAD_PRIVATE_PROPERTY_ACCESS	visibility
JSC_BAD_PROTECTED_PROPERTY_ACCESS	visibility
JSC_BAD_REST_PARAMETER_ANNOTATION	misplacedTypeAnnotation
JSC_BAD_TYPES_FOR_BINARY_OPERATION	checkTypes
JSC_BAD_TYPE_FOR_BIT_OPERATION	checkTypes
JSC_BAD_TYPE_FOR_UNARY_OPERATION	checkTypes
JSC_CLASS_DISALLOWED_JSDOC	lintChecks
JSC_CLOSURE_CALL_CANNOT_BE_ALIASED_ERROR	closureDepMethodUsageChecks
JSC_COMMONJS_SUSPICIOUS_EXPORTS_ASSIGNMENT	moduleLoad
JSC_COMMONJS_UNKNOWN_REQUIRE_ENSURE_ERROR	moduleLoad
JSC_COMPUTED_PROP_NAME_IN_ENUM	lintChecks
JSC_CONFLICTING_EXTENDED_TYPE	checkTypes
JSC_CONFLICTING_GETTER_SETTER_TYPE	checkTypes
JSC_CONFLICTING_IMPLEMENTED_TYPE	checkTypes
JSC_CONSTANT_PROPERTY_DELETED	constantProperty
JSC_CONSTANT_PROPERTY_REASSIGNED_VALUE	constantProperty
JSC_CONSTANT_REASSIGNED_VALUE_ERROR	const
JSC_CONSTRUCTOR_NOT_CALLABLE	checkTypes
JSC_CONSTRUCTOR_REQUIRED	checkTypes
JSC_CTOR_INITIALIZER_NOT_CTOR	checkTypes
JSC_CYCLIC_INHERITANCE_ERROR	checkTypes
JSC_DEBUGGER_STATEMENT_PRESENT	checkDebuggerStatement
JSC_DECLARE_LEGACY_NAMESPACE_IN_NON_MODULE	lintChecks
JSC_DEFAULT_EXPORT	lintChecks
JSC_DEFAULT_EXPORT_IN_GOOG_MODULE	lintChecks
JSC_DEFAULT_PARAM_MUST_BE_MARKED_OPTIONAL	misplacedTypeAnnotation
JSC_DELETE_VARIABLE	es5Strict
JSC_DEPRECATED_CLASS	deprecated
JSC_DEPRECATED_CLASS_REASON	deprecated
JSC_DEPRECATED_PROP	deprecated
JSC_DEPRECATED_PROP_REASON	deprecated
JSC_DEPRECATED_VAR	deprecated
JSC_DEPRECATED_VAR_REASON	deprecated
JSC_DETERMINISTIC_TEST	suspiciousCode
JSC_DICT_EXTEND_STRUCT_TYPE	checkTypes
JSC_DISALLOWED_MEMBER_JSDOC	misplacedTypeAnnotation
JSC_DUPLICATE_CASE	suspiciousCode
JSC_DUPLICATE_ENUM_VALUE	lintChecks
JSC_DUPLICATE_IMPORT	lintChecks
JSC_DUPLICATE_MEMBER	es5Strict
JSC_DUPLICATE_PARAM	es5Strict
JSC_DUP_VAR_DECLARATION	duplicate
JSC_DUP_VAR_DECLARATION_TYPE_MISMATCH	duplicate
JSC_ENUM_PROP_NOT_CONSTANT	lintChecks
JSC_ENUM_VALUE_NOT_STRING_OR_NUMBER	lintChecks
JSC_ES5_CLASS_EXTENDING_ES6_CLASS	checkTypes
JSC_EVAL_ASSIGNMENT	es5Strict
JSC_EVAL_DECLARATION	es5Strict
JSC_EXPECTED_THIS_TYPE	checkTypes
JSC_EXTENDS_NON_OBJECT	checkTypes
JSC_EXTENDS_WITHOUT_TYPEDEF	checkTypes
JSC_EXTEND_FINAL_CLASS	visibility
JSC_EXTERNS_FILES_SHOULD_BE_ANNOTATED	lintChecks
JSC_EXTRA_REQUIRE_WARNING	extraRequire
JSC_FINAL_PROPERTY_OVERRIDDEN	visibility
JSC_FRACTIONAL_BITWISE_OPERAND	transitionalSuspiciousCodeWarnings
JSC_FUNCTION_ARGUMENTS_PROP_FORBIDDEN	es5Strict
JSC_FUNCTION_CALLER_FORBIDDEN	es5Strict
JSC_FUNCTION_MASKS_VARIABLE	duplicate
JSC_GOOG_MODULE_INVALID_GET_CALL_SCOPE	closureDepMethodUsageChecks
JSC_GOOG_MODULE_IN_NON_MODULE	lintChecks
JSC_HIDDEN_INTERFACE_PROPERTY	missingOverride
JSC_HIDDEN_INTERFACE_PROPERTY_MISMATCH	checkTypes
JSC_HIDDEN_PROTOTYPAL_SUPERTYPE_PROPERTY_MISMATCH	checkPrototypalTypes
JSC_HIDDEN_SUPERCLASS_PROPERTY	missingOverride
JSC_HIDDEN_SUPERCLASS_PROPERTY_MISMATCH	checkTypes
JSC_IFACE_INITIALIZER_NOT_IFACE	checkTypes
JSC_ILLEGAL_CLASS_KEY	checkTypes
JSC_ILLEGAL_IMPLICIT_CAST	checkTypes
JSC_ILLEGAL_OBJLIT_KEY	checkTypes
JSC_ILLEGAL_PROPERTY_ACCESS	checkTypes
JSC_ILLEGAL_PROPERTY_CREATION	checkTypes
JSC_ILLEGAL_PROPERTY_CREATION_ON_UNION_TYPE	strictMissingProperties
JSC_ILLEGAL_PROTOTYPE_MEMBER	lintChecks
JSC_IMPLEMENTS_NON_INTERFACE	checkTypes
JSC_INCOMPATIBLE_EXTENDED_PROPERTY_TYPE	checkTypes
JSC_INCORRECT_PARAM_NAME	lintChecks
JSC_INCORRECT_SHORTNAME_CAPITALIZATION	lintChecks
JSC_INEXISTENT_ENUM_ELEMENT	checkTypes
JSC_INEXISTENT_PARAM	checkTypes
JSC_INEXISTENT_PROPERTY	missingProperties
JSC_INEXISTENT_PROPERTY_WITH_SUGGESTION	missingProperties
JSC_INSTANTIATE_ABSTRACT_CLASS	checkTypes
JSC_INSUFFICIENT_OUTPUT_VERSION	missingPolyfill
JSC_INTERFACE_CLASS_NONSTATIC_METHOD_NOT_EMPTY	lintChecks
JSC_INTERFACE_CONSTRUCTOR_SHOULD_NOT_TAKE_ARGS	lintChecks
JSC_INTERFACE_DEFINED_WITH_EXTENDS	lintChecks
JSC_INTERFACE_METHOD_NOT_EMPTY	checkTypes
JSC_INTERFACE_METHOD_NOT_IMPLEMENTED	checkTypes
JSC_INVALID_ASYNC_RETURN_TYPE	checkTypes
JSC_INVALID_CAST	invalidCasts
JSC_INVALID_CLOSURE_CALL_ERROR	closureDepMethodUsageChecks
JSC_INVALID_DEFINE_VALUE	missingSourcesWarnings
JSC_INVALID_INTERFACE_MEMBER_DECLARATION	checkTypes
JSC_INVALID_MODIFIES_ANNOTATION	misplacedTypeAnnotation
JSC_INVALID_NO_SIDE_EFFECT_ANNOTATION	misplacedTypeAnnotation
JSC_INVALID_OCTAL_LITERAL	es5Strict
JSC_INVALID_OPERAND_TYPE	strictPrimitiveOperators
JSC_INVALID_PARAM	nonStandardJsDocs
JSC_IN_USED_WITH_STRUCT	checkTypes
JSC_JSDOC_IMPORT_TYPE_WARNING	nonStandardJsDocs
JSC_JSDOC_IN_BLOCK_COMMENT	nonStandardJsDocs
JSC_JSDOC_MISSING_BRACES_WARNING	lintChecks
JSC_JSDOC_ON_RETURN	misplacedTypeAnnotation
JSC_JS_MODULE_LOAD_WARNING	moduleLoad
JSC_LATE_PROVIDE_ERROR	lateProvide
JSC_LENDS_ON_NON_OBJECT	checkTypes
JSC_LET_CLOSURE_IMPORT	lintChecks
JSC_MALFORMED_REGEXP	checkRegExp
JSC_MAYBE_ACCIDENTAL_DEFAULT_EXPORT_IN_GOOG_MODULE	lintChecks
JSC_MISPLACED_ANNOTATION	misplacedTypeAnnotation
JSC_MISPLACED_MSG_ANNOTATION	misplacedTypeAnnotation
JSC_MISSING_CONST_ON_CONSTANT_CASE	lintChecks
JSC_MISSING_CONST_PROPERTY	lintChecks
JSC_MISSING_EXTENDS_TAG	checkTypes
JSC_MISSING_JSDOC	lintChecks
JSC_MISSING_JSDOC_IN_DECLARATION_STATEMENT	lintChecks
JSC_MISSING_MODULE_OR_PROVIDE	missingSourcesWarnings
JSC_MISSING_MODULE_OR_PROVIDE_FOR_FORWARD_DECLARE	missingProvide
JSC_MISSING_NULLABILITY_MODIFIER_JSDOC	lintChecks
JSC_MISSING_PARAMETER_JSDOC	lintChecks
JSC_MISSING_REQUIRE	missingRequire
JSC_MISSING_REQUIRE_IN_PROVIDES_FILE	missingRequire
JSC_MISSING_REQUIRE_TYPE	missingRequire
JSC_MISSING_REQUIRE_TYPE_IN_PROVIDES_FILE	missingRequire
JSC_MISSING_RETURN_JSDOC	lintChecks
JSC_MISSING_RETURN_STATEMENT	missingReturn
JSC_MISSING_SEMICOLON	lintChecks
JSC_MIXED_PARAM_JSDOC_STYLES	lintChecks
JSC_MODULE_NAMESPACE_MISMATCHES_TYPESCRIPT_NAMESPACE	lintChecks
JSC_MSG_HAS_NO_DESCRIPTION	msgDescriptions
JSC_MSG_HAS_NO_TEXT	messageConventions
JSC_MSG_HAS_NO_VALUE	messageConventions
JSC_MSG_KEY_DUPLICATED	messageConventions
JSC_MSG_NOT_INITIALIZED_CORRECTLY	messageConventions
JSC_MSG_TREE_MALFORMED	messageConventions
JSC_MULTIPLE_VAR_DEF	checkTypes
JSC_MUST_COME_BEFORE_IN_ES6_MODULE	lintChecks
JSC_MUTATED_EXPORT	lintChecks
JSC_NAMESPACE_REDEFINED	duplicate
JSC_NAME_REFERENCE_IN_EXTERNS	externsValidation
JSC_NON_DECLARATION_STATEMENT_IN_INTERFACE	lintChecks
JSC_NON_STATIC_INITIALIZER_STRING_VALUE_IN_ENUM	lintChecks
JSC_NON_STRINGIFIABLE_OBJECT_KEY	checkTypes
JSC_NOT_A_CONSTRUCTOR	checkTypes
JSC_NOT_FUNCTION_TYPE	checkTypes
JSC_NULL_MISSING_NULLABILITY_MODIFIER_JSDOC	lintChecks
JSC_OPTIONAL_ARG_AT_END	checkTypes
JSC_OPTIONAL_PARAM_NOT_MARKED_OPTIONAL	lintChecks
JSC_PARTIAL_NAMESPACE	partialAlias
JSC_POLYMER_DESCRIPTOR_NOT_VALID	polymer
JSC_POSSIBLE_BASE_CLASS_ERROR	closureClassChecks
JSC_POSSIBLE_INEXISTENT_PROPERTY	missingProperties
JSC_PREFER_BACKTICKS_TO_AT_SIGN_CODE	lintChecks
JSC_PRIMITIVE_OBJECT	lintChecks
JSC_PRIMITIVE_OBJECT_DECLARATION	lintChecks
JSC_PRIVATE_OVERRIDE	visibility
JSC_PROPERTY_ASSIGNMENT_TO_READONLY_VALUE	checkTypes
JSC_PROTOTYPAL_HIDDEN_SUPERCLASS_PROPERTY	checkPrototypalTypes
JSC_PROVIDES_NOT_SORTED	lintChecks
JSC_REASSIGNED_CONSTANT_CASE_NAME	lintChecks
JSC_REDECLARED_VARIABLE	checkVars
JSC_REDUNDANT_NULLABILITY_MODIFIER_JSDOC	lintChecks
JSC_REFERENCE_BEFORE_DECLARE	checkVars
JSC_REGEXP_REFERENCE	checkRegExp
JSC_REQUIRES_NOT_SORTED	lintChecks
JSC_RESOLVED_TAG_EMPTY	checkTypes
JSC_SAME_INTERFACE_MULTIPLE_IMPLEMENTS	checkTypes
JSC_SHORTHAND_ASSIGNMENT_IN_ENUM	lintChecks
JSC_STATIC_MEMBER_FUNCTION_IN_INTERFACE_CLASS	lintChecks
JSC_STRICT_INEXISTENT_PROPERTY	strictMissingProperties
JSC_STRICT_INEXISTENT_PROPERTY_WITH_SUGGESTION	strictMissingProperties
JSC_STRICT_INEXISTENT_UNION_PROPERTY	strictMissingProperties
JSC_STRICT_MODULE_DEPENDENCY	strictModuleDepCheck
JSC_STRING_CONTINUATION	lintChecks
JSC_SUSPICIOUS_IN	suspiciousCode
JSC_SUSPICIOUS_INSTANCEOF_LEFT	suspiciousCode
JSC_SUSPICIOUS_LEFT_OPERAND_OF_LOGICAL_OPERATOR	suspiciousCode
JSC_SUSPICIOUS_NAN	suspiciousCode
JSC_SUSPICIOUS_NEGATED_LEFT_OPERAND_OF_IN_OPERATOR	suspiciousCode
JSC_SUSPICIOUS_SEMICOLON	suspiciousCode
JSC_TEMPLATE_TRANSFORMATION_ON_CLASS	checkTypes
JSC_TEMPLATE_TYPE_ILLEGAL_BOUND	checkTypes
JSC_TYPE_MISMATCH	checkTypes
JSC_TYPE_ON_GETTER_SETTER	lintChecks
JSC_TYPE_PARSE_ERROR	checkTypes
JSC_TYPE_REDEFINITION	checkTypes
JSC_UNDEFINED_EXTERN_VAR_ERROR	externsValidation
JSC_UNDEFINED_VARIABLE	undefinedVars
JSC_UNKNOWN_DEFINE_WARNING	unknownDefines
JSC_UNKNOWN_EXPR_TYPE	reportUnknownTypes
JSC_UNKNOWN_LENDS	checkTypes
JSC_UNKNOWN_OVERRIDE	checkTypes
JSC_UNKNOWN_PROTOTYPAL_OVERRIDE	checkPrototypalTypes
JSC_UNKNOWN_TYPEOF_VALUE	checkTypes
JSC_UNNECESSARY_ESCAPE	lintChecks
JSC_UNREACHABLE_CODE	uselessCode
JSC_UNRECOGNIZED_TYPE_ERROR	dangerousUnrecognizedTypeError
JSC_UNTRANSPILABLE	untranspilableFeatures
JSC_UNUSED	unusedPrivateMembers
JSC_UNUSED_LABEL	lintChecks
JSC_UNUSED_LOCAL_ASSIGNMENT	unusedLocalVariables
JSC_UNUSED_PRIVATE_PROPERTY	lintChecks
JSC_USED_GLOBAL_THIS	globalThis
JSC_USELESS_BLOCK	lintChecks
JSC_USELESS_CODE	uselessCode
JSC_USELESS_EMPTY_STATEMENT	lintChecks
JSC_USELESS_USE_STRICT_DIRECTIVE	lintChecks
JSC_USE_OF_GOOG_PROVIDE	useOfGoogProvide
JSC_USE_OF_WITH	es5Strict
JSC_VAR	lintVarDeclarations
JSC_VAR_ARGS_MUST_BE_LAST	checkTypes
JSC_VAR_MULTIPLY_DECLARED_ERROR	checkVars
JSC_VISIBILITY_MISMATCH	visibility
JSC_WRONG_ARGUMENT_COUNT	checkTypes
JSC_WRONG_NUMBER_OF_PARAMS	lintChecks
JSC_XMODULE_REQUIRE_ERROR	strictModuleDepCheck