Require Node.js 12.20 and move to ESM

.github/workflows/main.yml

@@ -10,12 +10,10 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 14
-          - 12
-          - 10
+          - 16
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

index.d.ts

@@ -1,28 +1,25 @@
 import {IOptions} from 'minimatch';
 
-declare namespace multimatch {
-	type Options = Readonly<IOptions>;
-}
+export type Options = Readonly<IOptions>;
 
 /**
 Extends [`minimatch.match()`](https://github.com/isaacs/minimatch#minimatchmatchlist-pattern-options) with support for multiple patterns.
 
-@param paths - Paths to match against.
+@param paths - The paths to match against.
 @param patterns - Globbing patterns to use. For example: `['*', '!cake']`. See supported [`minimatch` patterns](https://github.com/isaacs/minimatch#usage).
 @returns The matching paths in the order of input paths.
 
 @example
 ```
-import multimatch = require('multimatch');
+import multimatch from 'multimatch';
 
 multimatch(['unicorn', 'cake', 'rainbows'], ['*', '!cake']);
 //=> ['unicorn', 'rainbows']
 ```
 */
-declare function multimatch(
+export default function multimatch(
 	paths: string | readonly string[],
 	patterns: string | readonly string[],
-	options?: multimatch.Options
+	options?: Options
 ): string[];
 
-export = multimatch;

index.js

@@ -1,12 +1,10 @@
-'use strict';
-const minimatch = require('minimatch');
-const arrayUnion = require('array-union');
-const arrayDiffer = require('array-differ');
-const arrify = require('arrify');
+import minimatch from 'minimatch';
+import arrayUnion from 'array-union';
+import arrayDiffer from 'array-differ';
 
-module.exports = (list, patterns, options = {}) => {
-	list = arrify(list);
-	patterns = arrify(patterns);
+export default function multimatch(list, patterns, options = {}) {
+	list = [list].flat();
+	patterns = [patterns].flat();
 
 	if (list.length === 0 || patterns.length === 0) {
 		return [];
@@ -27,4 +25,4 @@ module.exports = (list, patterns, options = {}) => {
 	}
 
 	return result;
-};
+}

index.test-d.ts

@@ -1,10 +1,10 @@
-import multimatch = require('.');
+import multimatch, {Options} from './index.js';
 
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
-const options: multimatch.Options = {};
+const options: Options = {};
 
 multimatch(['unicorn', 'cake', 'rainbows'], '!cake');
 multimatch(['unicorn', 'cake', 'rainbows'], ['*', '!cake']);
 multimatch(['unicorn', 'cake', 'rainbows'], ['*', '!cake'], {
-	debug: true
+	debug: true,
 });

package.json

@@ -10,8 +10,10 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=10"
+		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -34,15 +36,14 @@
 		"wildcard"
 	],
 	"dependencies": {
-		"@types/minimatch": "^3.0.3",
-		"array-differ": "^3.0.0",
-		"array-union": "^2.1.0",
-		"arrify": "^2.0.1",
+		"@types/minimatch": "^3.0.5",
+		"array-differ": "^4.0.0",
+		"array-union": "^3.0.1",
 		"minimatch": "^3.0.4"
 	},
 	"devDependencies": {
-		"ava": "^2.4.0",
-		"tsd": "^0.13.1",
-		"xo": "^0.33.1"
+		"ava": "^3.15.0",
+		"tsd": "^0.18.0",
+		"xo": "^0.45.0"
 	}
 }

readme.md

@@ -4,14 +4,14 @@
 
 ## Install
 
-```
-$ npm install multimatch
+```sh
+npm install multimatch
 ```
 
 ## Usage
 
 ```js
-const multimatch = require('multimatch');
+import multimatch from 'multimatch';
 
 multimatch(['unicorn', 'cake', 'rainbows'], ['*', '!cake']);
 //=> ['unicorn', 'rainbows']
@@ -29,7 +29,7 @@ Returns an array of matching paths in the order of input paths.
 
 Type: `string | string[]`
 
-Paths to match against.
+The paths to match against.
 
 #### patterns
 
@@ -50,7 +50,7 @@ See the [`minimatch` options](https://github.com/isaacs/minimatch#options).
 
 Positive patterns (e.g. `foo` or `*`) add to the results, while negative patterns (e.g. `!foo`) subtract from the results.
 
-Therefore a lone negation (e.g. `['!foo']`) will never match anything – use `['*', '!foo']` instead.
+Therefore a lone negation (e.g. `['!foo']`) will never match anything. Use `['*', '!foo']` instead.
 
 ## Globbing patterns
 

test/globule.js

@@ -1,6 +1,6 @@
 // Tests from [globule](https://github.com/cowboy/node-globule)
 import test from 'ava';
-import multimatch from '..';
+import multimatch from '../index.js';
 
 test('Should return empty set if a required argument is missing or an empty set.', t => {
 	t.deepEqual(multimatch('', 'foo.js'), []);

test/test.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import multimatch from '..';
+import multimatch from '../index.js';
 
 const fixtures = ['vendor/js/foo.js', 'vendor/js/bar.js', 'vendor/js/baz.js'];