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

@@ -3,12 +3,10 @@ Detect whether the terminal supports Unicode.
 
 @example
 ```
-import isUnicodeSupported = require('is-unicode-supported');
+import isUnicodeSupported from 'is-unicode-supported';
 
 isUnicodeSupported();
 //=> true
 ```
 */
-declare function isUnicodeSupported(): boolean;
-
-export = isUnicodeSupported;
+export default function isUnicodeSupported(): boolean;

index.js

@@ -1,6 +1,4 @@
-'use strict';
-
-module.exports = () => {
+export default function isUnicodeSupported() {
 	if (process.platform !== 'win32') {
 		return true;
 	}
@@ -10,4 +8,4 @@ module.exports = () => {
 		process.env.TERM_PROGRAM === 'vscode' ||
 		process.env.TERM === 'xterm-256color' ||
 		process.env.TERM === 'alacritty';
-};
+}

index.test-d.ts

@@ -1,4 +1,4 @@
 import {expectType} from 'tsd';
-import isUnicodeSupported = require('.');
+import isUnicodeSupported from './index.js';
 
 expectType<boolean>(isUnicodeSupported());

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"
@@ -34,7 +36,7 @@
 		"detection"
 	],
 	"devDependencies": {
-		"ava": "^2.4.0",
+		"ava": "^3.15.0",
 		"tsd": "^0.14.0",
 		"xo": "^0.38.2"
 	}

readme.md

@@ -15,7 +15,7 @@ $ npm install is-unicode-supported
 ## Usage
 
 ```js
-const isUnicodeSupported = require('is-unicode-supported');
+import isUnicodeSupported from 'is-unicode-supported';
 
 isUnicodeSupported();
 //=> true