Polyfills copy-pasted from MDN

MDN polyfills. A collection of side-effect ECMAScript modules. Minimized, mangled and extremely small thanks to Rollup - next-generation ES6 module bundler.

Installation

npm i mdn-polyfills --save

Usage

import 'mdn-polyfills/POLYFILL_NAME';

// For example:

// (ES6 Modules)
import 'mdn-polyfills/Array.prototype.includes';
import 'mdn-polyfills/Object.create';

// (CommonJS)
require('mdn-polyfills/CustomEvent');
require('mdn-polyfills/String.prototype.padStart');

// and so on ...

Polyfills are also available over a CDN, for example

<script src="https://unpkg.com/mdn-polyfills/Object.assign"></script>
<script src="https://cdn.jsdelivr.net/npm/mdn-polyfills/NodeList.prototype.forEach.js"></script>

Supported polyfills

name	size [b]
Object.assign	274
Object.create	299
Object.entries	151
Object.keys	723
Object.values	142
Array.from	788
Array.of	79
Array.prototype.fill	343
Array.prototype.filter	300
Array.prototype.find	330
Array.prototype.findIndex	362
Array.prototype.forEach	328
Array.prototype.includes	346
Array.prototype.some	346
Array.prototype.reduce	492
String.prototype.includes	153
String.prototype.repeat	504
String.prototype.startsWith	117
String.prototype.endsWith	148
String.prototype.padStart	209
String.prototype.padEnd	205
String.prototype.trim	121
Function.prototype.bind	427
Node.prototype.addEventListener	1321
Node.prototype.append	433
Node.prototype.prepend	452
Node.prototype.before	440
Node.prototype.after	461
Node.prototype.remove	290
Node.prototype.replaceWith	731
Node.prototype.children	245
Node.prototype.firstElementChild	262
NodeList.prototype.forEach	158
Element.prototype.closest	333
Element.prototype.toggleAttribute	243
Element.prototype.matches	133
Element.prototype.classList	4450
Element.prototype.getAttributeNames	182
MouseEvent	405
CustomEvent	279
Number.isInteger	106
Number.isNaN	53
HTMLCanvasElement.prototype.toBlob	276

License

The mdn-polyfills as a module is licensed under MIT © Michał Jezierski
Polyfills are licensed under https://developer.mozilla.org/en-US/docs/MDN/About#Copyrights_and_licenses