mdn-polyfills

2019-11-19 admin

mdn-polyfills是什么

什么是mdn-polyfills,MDN polyfills

mdn-polyfills使用教程帮助文档

Polyfills copy-pasted from MDN Build Status npm dependencies

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
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

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