Require Node.js 18 and move to ESM

.github/workflows/main.yml

@@ -10,13 +10,11 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 14
-          - 12
-          - 10
-          - 8
+          - 20
+          - 18
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

index.js

@@ -1,6 +1,6 @@
-'use strict';
-
-module.exports = typeof setImmediate === 'function' ? setImmediate : (...args) => {
-	args.splice(1, 0, 0);
-	setTimeout(...args);
+const setImmediate = typeof globalThis.setImmediate === 'function' ? globalThis.setImmediate : (...arguments_) => {
+	arguments_.splice(1, 0, 0);
+	setTimeout(...arguments_);
 };
+
+export default setImmediate;

license

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
+Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (https://sindresorhus.com)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

package.json

@@ -4,13 +4,20 @@
 	"description": "Simple setImmediate shim",
 	"license": "MIT",
 	"repository": "sindresorhus/set-immediate-shim",
+	"funding": "https://github.com/sponsors/sindresorhus",
 	"author": {
 		"name": "Sindre Sorhus",
 		"email": "sindresorhus@gmail.com",
-		"url": "sindresorhus.com"
+		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": {
+		"types": "./index.d.ts",
+		"default": "./index.js"
+	},
+	"sideEffects": false,
 	"engines": {
-		"node": ">=8"
+		"node": ">=18"
 	},
 	"scripts": {
 		"test": "xo && ava"
@@ -28,8 +35,7 @@
 		"ponyfill"
 	],
 	"devDependencies": {
-		"ava": "^2.3.0",
-		"import-fresh": "^3.1.0",
-		"xo": "^0.24.0"
+		"ava": "^6.1.2",
+		"xo": "^0.58.0"
 	}
 }

readme.md

@@ -2,18 +2,18 @@
 
 > Simple [`setImmediate`](https://developer.mozilla.org/en-US/docs/Web/API/Window/setImmediate) [ponyfill](https://ponyfill.com)
 
-Note: This shim is quite inefficient, see [`#4`](https://github.com/sindresorhus/set-immediate-shim/issues/4).
+Note: This shim is [quite inefficient](https://github.com/sindresorhus/set-immediate-shim/issues/4).
 
 ## Install
 
-```
-$ npm install set-immediate-shim
+```sh
+npm install set-immediate-shim
 ```
 
 ## Usage
 
 ```js
-const setImmediateShim = require('set-immediate-shim');
+import setImmediateShim from 'set-immediate-shim';
 
 setImmediateShim(() => {
 	console.log('2');
@@ -28,15 +28,3 @@ console.log('1');
 ## Related
 
 - [p-immediate](https://github.com/sindresorhus/p-immediate) - Returns a promise resolved in the next event loop - think `setImmediate()`
-
----
-
-<div align="center">
-	<b>
-		<a href="https://tidelift.com/subscription/pkg/npm-set-immediate-shim?utm_source=npm-set-immediate-shim&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a>
-	</b>
-	<br>
-	<sub>
-		Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies.
-	</sub>
-</div>

test.js

@@ -1,34 +1,38 @@
-/* eslint-disable no-global-assign */
+import {randomInt} from 'node:crypto';
 import test from 'ava';
-import importFresh from 'import-fresh';
 
-test.cb('shim', t => {
-	let called = false;
+const importFresh = async moduleName => import(`${moduleName}?${randomInt(100_000_000)}`);
 
+test.serial('shim', async t => {
 	// Force the shim
-	const _ = setImmediate;
-	setImmediate = null;
-	const setImmediateShim = importFresh('.');
-	setImmediate = _;
+	const _ = globalThis.setImmediate;
+	globalThis.setImmediate = undefined;
+	const {default: setImmediateShim} = await importFresh('./index.js');
+	globalThis.setImmediate = _;
 
-	setImmediateShim(() => {
-		called = true;
-		t.end();
+	await new Promise(resolve => {
+		setImmediateShim(() => {
+			resolve();
+		});
 	});
 
-	t.false(called);
+	t.pass();
 });
 
-test.cb('pass rest arguments', t => {
+test.serial('pass rest arguments', async t => {
 	// Force the shim
-	const _ = setImmediate;
-	setImmediate = null;
-	const setImmediateShim = importFresh('.');
-	setImmediate = _;
+	const _ = globalThis.setImmediate;
+	globalThis.setImmediate = undefined;
+	const {default: setImmediateShim} = await importFresh('./index.js');
+	globalThis.setImmediate = _;
 
-	setImmediateShim((a, b) => {
-		t.is(a, 3);
-		t.is(b, 5);
-		t.end();
-	}, 3, 5);
+	await new Promise(resolve => {
+		setImmediateShim((a, b) => {
+			t.is(a, 3);
+			t.is(b, 5);
+			resolve();
+		}, 3, 5);
+	});
+
+	t.pass();
 });