Require Node.js 12 and move to ESM

.github/workflows/main.yml

@@ -12,10 +12,9 @@ jobs:
         node-version:
           - 14
           - 12
-          - 10
     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

@@ -5,14 +5,12 @@ You can also use this to escape a string that is inserted into the middle of a r
 
 @example
 ```
-import escapeStringRegexp = require('escape-string-regexp');
+import escapeStringRegexp from 'escape-string-regexp';
 
 const escapedString = escapeStringRegexp('How much $ for a 🦄?');
 //=> 'How much \\$ for a 🦄\\?'
 
 new RegExp(escapedString);
 ```
 */
-declare const escapeStringRegexp: (string: string) => string;
-
-export = escapeStringRegexp;
+export default function escapeStringRegexp(string: string): string;

index.js

@@ -1,6 +1,4 @@
-'use strict';
-
-module.exports = string => {
+export default function escapeStringRegexp(string) {
 	if (typeof string !== 'string') {
 		throw new TypeError('Expected a string');
 	}
@@ -10,4 +8,4 @@ module.exports = string => {
 	return string
 		.replace(/[|\\{}()[\]^$+*?.]/g, '\\$&')
 		.replace(/-/g, '\\x2d');
-};
+}

index.test-d.ts

@@ -1,4 +1,4 @@
 import {expectType} from 'tsd';
-import escapeStringRegexp = require('.');
+import escapeStringRegexp from './index.js';
 
 expectType<string>(escapeStringRegexp('how much $ for a 🦄?'));

package.json

@@ -10,8 +10,10 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=10"
+		"node": ">=12"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -31,8 +33,8 @@
 		"characters"
 	],
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"tsd": "^0.11.0",
-		"xo": "^0.28.3"
+		"ava": "^3.15.0",
+		"tsd": "^0.14.0",
+		"xo": "^0.38.2"
 	}
 }

readme.md

@@ -11,7 +11,7 @@ $ npm install escape-string-regexp
 ## Usage
 
 ```js
-const escapeStringRegexp = require('escape-string-regexp');
+import escapeStringRegexp from 'escape-string-regexp';
 
 const escapedString = escapeStringRegexp('How much $ for a 🦄?');
 //=> 'How much \\$ for a 🦄\\?'

test.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import escapeStringRegexp from '.';
+import escapeStringRegexp from './index.js';
 
 test('main', t => {
 	t.is(