Require Node.js 14, TS 4.7, and move to ESM (#167)

.github/workflows/main.yml

@@ -10,12 +10,12 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
+          - 18
+          - 16
           - 14
-          - 12
-          - 10
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

package.json

@@ -10,9 +10,11 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
-	"main": "dist/index.js",
+	"type": "module",
+	"exports": "./index.js",
+	"types": "./index.d.ts",
 	"engines": {
-		"node": ">=10"
+		"node": ">=14.16"
 	},
 	"scripts": {
 		"build": "del dist && tsc",
@@ -47,50 +49,34 @@
 		"types"
 	],
 	"devDependencies": {
-		"@sindresorhus/tsconfig": "^0.7.0",
-		"@types/jsdom": "^16.1.0",
-		"@types/node": "^14.0.13",
-		"@types/zen-observable": "^0.8.0",
-		"@typescript-eslint/eslint-plugin": "^2.20.0",
-		"@typescript-eslint/parser": "^2.20.0",
-		"ava": "^3.3.0",
-		"del-cli": "^2.0.0",
-		"eslint-config-xo-typescript": "^0.26.0",
-		"jsdom": "^16.0.1",
-		"rxjs": "^6.4.0",
-		"tempy": "^0.4.0",
-		"ts-node": "^8.3.0",
-		"typescript": "~3.8.2",
-		"xo": "^0.26.1",
-		"zen-observable": "^0.8.8"
+		"@sindresorhus/tsconfig": "^3.0.1",
+		"@types/jsdom": "^16.2.14",
+		"@types/node": "^17.0.42",
+		"@types/zen-observable": "^0.8.3",
+		"ava": "^4.3.0",
+		"del-cli": "^4.0.1",
+		"jsdom": "^19.0.0",
+		"rxjs": "^7.5.5",
+		"tempy": "^3.0.0",
+		"ts-node": "^10.8.1",
+		"typescript": "~4.7.3",
+		"xo": "^0.50.0",
+		"zen-observable": "^0.8.15"
 	},
-	"types": "dist/index.d.ts",
 	"sideEffects": false,
 	"ava": {
-		"extensions": [
-			"ts"
-		],
-		"require": [
-			"ts-node/register"
+		"extensions": {
+			"ts": "module"
+		},
+		"nodeArguments": [
+			"--loader=ts-node/esm"
 		]
 	},
 	"xo": {
-		"extends": "xo-typescript",
-		"extensions": [
-			"ts"
-		],
-		"parserOptions": {
-			"project": "./tsconfig.xo.json"
-		},
-		"globals": [
-			"BigInt",
-			"BigInt64Array",
-			"BigUint64Array"
-		],
 		"rules": {
-			"@typescript-eslint/promise-function-async": "off",
 			"@typescript-eslint/no-empty-function": "off",
-			"@typescript-eslint/explicit-function-return-type": "off"
+			"@typescript-eslint/explicit-function-return-type": "off",
+			"@typescript-eslint/triple-slash-reference": "off"
 		}
 	}
 }

readme.md

@@ -24,7 +24,7 @@ npm install @sindresorhus/is
 ## Usage
 
 ```js
-const is = require('@sindresorhus/is');
+import is from '@sindresorhus/is';
 
 is('🦄');
 //=> 'string'
@@ -39,7 +39,7 @@ is.number(6);
 [Assertions](#type-assertions) perform the same type checks, but throw an error if the type does not match.
 
 ```js
-const {assert} = require('@sindresorhus/is');
+import {assert} from '@sindresorhus/is';
 
 assert.string(2);
 //=> Error: Expected value which is `string`, received value of type `number`.
@@ -436,7 +436,7 @@ Returns `true` if `value` is a DOM Element.
 Returns `true` if `value` is a Node.js [stream](https://nodejs.org/api/stream.html).
 
 ```js
-const fs = require('fs');
+import fs from 'node:fs';
 
 is.nodeStream(fs.createReadStream('unicorn.png'));
 //=> true
@@ -447,7 +447,7 @@ is.nodeStream(fs.createReadStream('unicorn.png'));
 Returns `true` if `value` is an `Observable`.
 
 ```js
-const {Observable} = require('rxjs');
+import {Observable} from 'rxjs';
 
 is.observable(new Observable());
 //=> true