polyfill

ES6-compliant shim for Number.isNaN - the global isNaN returns false positives.

ES6 spec-compliant Function.prototype.name sham.

一个轻量，兼容ie7、ie8，3D swiper插件。

The JavaScript library that promises you the fastest ES6 promises

react polyfills for ref, context and hooks

JS polyfill CSS property -webkit-line-clamp

Symfony polyfill backporting some PHP 8.6+ features to lower PHP versions

Intrinsicsize-attribute polyfill

Replacement for the ereg legacy php extension

Taro3 runtime polyfill

A jQuery compatible API based on built-in ECMA / W3C polyfill

A window.resizeTo polyfill for test environments like Jest & JSDOM (in <10 LoC)

A fully spec-compliant polyfill for 'Intl.ListFormat'

PostCSS plugin that shims some basic behaviour of the proposed CSS subgrid spec

:fork_and_knife: Fork of rfk's project

Polyfill to provide array.find on IE.

Tiny, maintained CSS pointer-events polyfill

@babel/preset-env example

Provide __proto__ with some limitations

Drop-in replacement for the child_process NodeJS package

Finally, a range slider that we all deserve.

Polyfill for the problem 'window is not defined' in node.js

Polyfill for RFC 631 https://emberjs.github.io/rfcs/0631-refresh-method-for-router-service.html

Polyfill `error.cause`

A Polyfill for the SplEnum type in PHP

fetch-like polyfill for userscript managers

Polyfill Module for SplType PHP extension. This extension aims at helping people making PHP a stronger typed language and can be a good alternative to...

:clock1: A drop-in replacement for the timers nodejs module

Fixes missing requestAnimationFrame API in legacy browsers.

A spec for an aspect-ratio property in CSS

Implement the inertia scroll for `overflow` element. And the polyfill for `overflow:scroll` / `overflow:auto` and `element.scrollLeft` / `element.scro...

A Polyfill for PHP 8.0's PhpToken class, supporting PHP 7.1 and higher

An ESnext spec-compliant `Array.prototype.groupToMap` shim/polyfill/replacement that works as far down as ES3.

Vite plugin for polyfilling Node.js built-in globals and modules ⚡️

Header-only implementation of std::atomic_ref for C++14

A tiny, zero-dependency yet spec-compliant asynchronous iterator polyfill/ponyfill for ReadableStreams.

a very insecure mysql_escape_string implementation for a very limited use case

Use nosleep.js as a lazy-loaded polyfill for WakeLock API

A minimum viable shim for module.exports

ES Proposal spec-compliant shim for Promise.withResolvers

A ponyfill for the Storage API, utilizing SQLite

Context Menu and Menu Bar polyfill for writing NWJS compatible menus in the browser

ES2019 spec-compliant shim for String.prototype.trimRight.

Template Parts ponyfill

Random Extension Polyfill for PHP

An implementation for Array.fromAsync, which dumps an async iterator into an array.

ES6 spec-compliant RegExp.prototype.flags shim

Simple polyfill for Promise.allSettled - no dependencies - Uses default implementation if available.

Miscellaneous polyfills for older PHP versions

A Object.defineProperty sham based on VBScript for IE