Update dependencies

index.ts

@@ -1,10 +1,10 @@
 import {isBackgroundPage} from 'webext-detect-page';
 import toMilliseconds, {TimeDescriptor} from '@sindresorhus/to-milliseconds';
 
-// @ts-ignore
+// @ts-expect-error
 // eslint-disable-next-line @typescript-eslint/promise-function-async
 const getPromise = (executor: () => void) => <T>(key?): Promise<T> => new Promise((resolve, reject) => {
-	// @ts-ignore
+	// @ts-expect-error
 	executor(key, result => {
 		if (chrome.runtime.lastError) {
 			reject(chrome.runtime.lastError);
@@ -18,11 +18,11 @@ function timeInTheFuture(time: TimeDescriptor): number {
 	return Date.now() + toMilliseconds(time);
 }
 
-// @ts-ignore
+// @ts-expect-error
 const storageGet = getPromise((...args) => chrome.storage.local.get(...args));
-// @ts-ignore
+// @ts-expect-error
 const storageSet = getPromise((...args) => chrome.storage.local.set(...args));
-// @ts-ignore
+// @ts-expect-error
 const storageRemove = getPromise((...args) => chrome.storage.local.remove(...args));
 
 type Primitive = boolean | number | string;
@@ -68,7 +68,7 @@ async function get<TValue extends Value>(key: string): Promise<TValue | undefine
 
 async function set<TValue extends Value>(key: string, value: TValue, maxAge: TimeDescriptor = {days: 30}): Promise<TValue> {
 	if (typeof value === 'undefined') {
-		// @ts-ignore This never happens in TS because `value` can't be undefined
+		// @ts-expect-error This never happens in TS because `value` can't be undefined
 		return;
 	}
 
@@ -181,7 +181,7 @@ function init(): void {
 		chrome.alarms.onAlarm.addListener(alarm => {
 			if (alarm.name === 'webext-storage-cache' && lastRun < Date.now() - 1000) {
 				lastRun = Date.now();
-				deleteExpired();
+				void deleteExpired();
 			}
 		});
 	} else {

package.json

@@ -44,23 +44,14 @@
       "browser",
       "webextensions"
     ],
-    "extensions": [
-      "ts"
-    ],
-    "overrides": [
-      {
-        "files": "**/*.ts",
-        "extends": "xo-typescript",
-        "parserOptions": {
-          "project": "./tsconfig.xo.json"
-        }
-      }
-    ],
     "rules": {
+      "@typescript-eslint/return-await": 0,
       "import/extensions": 0,
       "import/no-unassigned-import": 0,
       "import/no-useless-path-segments": 0,
-      "unicorn/import-index": 0
+      "no-promise-executor-return": 0,
+      "unicorn/import-index": 0,
+      "unicorn/no-object-as-default-parameter": 0
     }
   },
   "ava": {
@@ -74,16 +65,13 @@
   },
   "devDependencies": {
     "@sindresorhus/tsconfig": "^0.7.0",
-    "@types/chrome": "0.0.95",
+    "@types/chrome": "0.0.124",
     "@types/sinon-chrome": "^2.2.6",
-    "@typescript-eslint/eslint-plugin": "^2.19.2",
-    "@typescript-eslint/parser": "^2.19.2",
     "ava": "^3.3.0",
-    "eslint-config-xo-typescript": "^0.26.0",
-    "sinon": "^8.1.1",
+    "sinon": "^9.2.0",
     "sinon-chrome": "^3.0.1",
-    "tsd": "^0.11.0",
-    "typescript": "^3.7.5",
-    "xo": "^0.26.0"
+    "tsd": "^0.13.1",
+    "typescript": "^4.0.3",
+    "xo": "^0.33.1"
   }
 }

test/index.js

@@ -70,8 +70,6 @@ test.serial('set() with undefined', async t => {
 	t.is(chrome.storage.local.set.callCount, 0);
 });
 
-test.todo('set() with past maxAge should throw');
-
 test.serial('set() with value', async t => {
 	const maxAge = 20;
 	await cache.set('name', 'Anne', {days: maxAge});