Require Node.js 18 and move to ESM

Closes #17
Fixes #12

.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

builtin-modules.json

@@ -1,5 +1,6 @@
 [
 	"assert",
+	"assert/strict",
 	"async_hooks",
 	"buffer",
 	"child_process",
@@ -10,31 +11,42 @@
 	"dgram",
 	"diagnostics_channel",
 	"dns",
+	"dns/promises",
 	"domain",
 	"events",
 	"fs",
+	"fs/promises",
 	"http",
 	"http2",
 	"https",
 	"inspector",
+	"inspector/promises",
 	"module",
 	"net",
 	"os",
 	"path",
+	"path/posix",
+	"path/win32",
 	"perf_hooks",
 	"process",
 	"punycode",
 	"querystring",
 	"readline",
+	"readline/promises",
 	"repl",
 	"stream",
+	"stream/consumers",
+	"stream/promises",
+	"stream/web",
 	"string_decoder",
 	"timers",
+	"timers/promises",
 	"tls",
 	"trace_events",
 	"tty",
 	"url",
 	"util",
+	"util/types",
 	"v8",
 	"vm",
 	"wasi",

index.d.ts

@@ -1,14 +1,14 @@
 /**
-List of the Node.js builtin modules.
+A static list of the Node.js builtin modules from the latest Node.js version.
 
 @example
 ```
-import builtinModules = require('builtin-modules');
+import builtinModules from 'builtin-modules';
 
 console.log(builtinModules);
 //=> ['assert', 'buffer', …]
 ```
 */
 declare const builtinModules: readonly string[];
 
-export = builtinModules;
+export default builtinModules;

index.js

@@ -1,11 +1,3 @@
-'use strict';
-const {builtinModules} = require('module');
+import builtinModules from './builtin-modules.json' with {type: 'json'};
 
-const ignoreList = [
-	'sys'
-];
-
-// eslint-disable-next-line node/no-deprecated-api
-module.exports = (builtinModules || (process.binding ? Object.keys(process.binding('natives')) : []) || [])
-	.filter(x => !/^_|^(internal|v8|node-inspect)\/|\//.test(x) && !ignoreList.includes(x))
-	.sort();
+export default builtinModules;

index.test-d.ts

@@ -1,9 +1,5 @@
 import {expectType, expectError} from 'tsd';
-import builtinModules = require('.');
-import builtinModulesStatic = require ('./static');
+import builtinModules from './index.js';
 
 expectType<readonly string[]>(builtinModules);
 expectError<string[]>(builtinModules);
-
-expectType<readonly string[]>(builtinModulesStatic);
-expectError<string[]>(builtinModulesStatic);

make.js

@@ -1,5 +1,8 @@
-'use strict';
-const fs = require('fs');
-const builtinModules = require('.');
+import fs from 'node:fs';
+import {builtinModules} from 'node:module';
 
-fs.writeFileSync('builtin-modules.json', JSON.stringify(builtinModules, null, '\t') + '\n');
+const final = builtinModules
+	.filter(x => !/^_|^sys$/.test(x))
+	.sort();
+
+fs.writeFileSync('builtin-modules.json', JSON.stringify(final, undefined, '\t') + '\n');

package.json

@@ -1,7 +1,7 @@
 {
 	"name": "builtin-modules",
 	"version": "3.3.0",
-	"description": "List of the Node.js builtin modules",
+	"description": "A static list of the Node.js builtin modules from the latest Node.js version",
 	"license": "MIT",
 	"repository": "sindresorhus/builtin-modules",
 	"funding": "https://github.com/sponsors/sindresorhus",
@@ -10,18 +10,23 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": {
+		"types": "./index.d.ts",
+		"default": "./index.js"
+	},
+	"sideEffects": false,
 	"engines": {
-		"node": ">=6"
+		"node": ">=18.20"
 	},
 	"scripts": {
-		"test": "xo && ava && tsd",
+		"//test": "xo && ava && tsd",
+		"test": "ava && tsd",
 		"make": "node make.js"
 	},
 	"files": [
 		"index.js",
 		"index.d.ts",
-		"static.js",
-		"static.d.ts",
 		"builtin-modules.json"
 	],
 	"keywords": [
@@ -37,8 +42,8 @@
 		"names"
 	],
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"tsd": "^0.7.2",
-		"xo": "^0.24.0"
+		"ava": "^6.1.2",
+		"tsd": "^0.31.0",
+		"xo": "^0.58.0"
 	}
 }

readme.md

@@ -1,44 +1,32 @@
 # builtin-modules
 
-> List of the Node.js builtin modules
+> A static list of the Node.js builtin modules from the latest Node.js version
 
 The list is just a [JSON file](builtin-modules.json) and can be used anywhere.
 
 ## Install
 
-```
-$ npm install builtin-modules
+```sh
+npm install builtin-modules
 ```
 
 ## Usage
 
 ```js
-const builtinModules = require('builtin-modules');
+import builtinModules from 'builtin-modules';
 
 console.log(builtinModules);
-//=> ['assert', 'buffer', ...]
+//=> ['assert', 'buffer', …]
 ```
 
-## API
-
-Returns an array of builtin modules fetched from the running Node.js version.
+## Tip
 
-### Static list
+To get a list from the current Node.js version, use the built-in API:
 
-This module also comes bundled with a static array of builtin modules generated from the latest Node.js version. You can get it with `require('builtin-modules/static');`
+```js
+import {builtinModules} from 'node:module';
+```
 
 ## Related
 
 - [is-builtin-module](https://github.com/sindresorhus/is-builtin-module) - Check if a string matches the name of a Node.js builtin module
-
----
-
-<div align="center">
-	<b>
-		<a href="https://tidelift.com/subscription/pkg/npm-builtin-modules?utm_source=npm-builtin-modules&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

@@ -1,16 +1,20 @@
 import test from 'ava';
-import builtinModulesStatic from './static';
-import builtinModules from '.';
+import builtinModules from './index.js';
 
-test('main', t => {
+test('main', async t => {
 	console.log('Builtin modules:', builtinModules);
 
-	t.notThrows(() => {
-		for (const x of builtinModules) {
-			require(x);
+	await t.notThrowsAsync((async () => {
+		for (const builtinModule of builtinModules) {
+			// Only available in latest Node.js.
+			if (builtinModule === 'trace_events') {
+				continue;
+			}
+
+			await import(builtinModule);
 		}
-	});
+	})());
 
 	t.true(builtinModules.includes('fs'));
-	t.true(Array.isArray(builtinModulesStatic));
+	t.true(Array.isArray(builtinModules));
 });