Most popular polyfill repositories and open source projects

Array.prototype.entries es-shims JavaScript

An ES2015 spec-compliant `Array.prototype.entries` shim/polyfill/replacement that works as far down as ES3.

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smooth-anchor afenton90 JavaScript

easy smooth scrolling for anchor tags.

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mjs-polyfill Asondo JavaScript

Mongoose os example project with standardization polyfill

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bigint-as-any-ts dubzzz TypeScript

Polyfill bigint as any that works with TypeScript <3.2

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Javascript_scrollLeftMax_Polyfill MohamedLamineAllal JavaScript

A polyfill for Element.prototype.scrollLeftMax() and Element.prototype.scrollTopMax() functions for javascript (supporting IE6+, chrom, opera, safari)...

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frontend-starter-kit le2xx JavaScript

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range-prototype micheleriva JavaScript

Extend your JavaScript Number type with a ~100 bytes polyfill

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Array.prototype.some es-shims JavaScript

Array.prototype.some spec-compliant polyfill

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polyfill-sqreen killmails PHP

Killmails polyfill for the Sqreen PHP extension

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Polyfills jsPolyfill

Improve your JS workflow while you still provide support for older browsers.

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promise-any-polyfill T99 TypeScript

A polyfill for the `Promise.any` function.

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upsert-map corefunc JavaScript

Addition of a method that will add a value to a map if the map does not already have something at key, and will also update an existing value at key.

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beforeScriptExecute-Polyfill Ray-Adams JavaScript

A hookless polyfill for the "beforescriptexecute" event.

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location-polyfill worker-tools TypeScript

A Location polyfill for Cloudflare Workers.

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time-now stdlib-js Makefile

Time in seconds since the epoch.

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tour-rest-api yogeshmishra667 JavaScript

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Number.isSafeInteger es-shims JavaScript

An ES-spec-compliant Number.isSafeInteger shim/polyfill/replacement that works as far down as ES3

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math-base-special-fast-atanh stdlib-js Makefile

Compute the hyperbolic arctangent of a number.

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js-pipeline nektro JavaScript

(pipeline-operator on npm) Functional implementation of the pipeline operator |>

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Number.parseFloat es-shims JavaScript

An ES-spec-compliant Number.parseFloat shim/polyfill/replacement that works as far down as ES3

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path-composedPath-polyfill.js erovas JavaScript

(EN) Small polyfill script of Event.path and Event.composedPath() for internet explorer 9 or higher

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imageFormatFallback.js Maingron HTML

Script to provide fallback image formats for browsers by using a simple HTML attribute. Unlike srcset, this is also supported in the Internet Explorer...

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utils-index-of stdlib-js JavaScript

Return the first index at which a given element can be found.

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Collections HowProgrammingWorks JavaScript

Different types of Associative Collections

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math-base-special-truncf stdlib-js Makefile

Round a single-precision floating-point number toward zero.

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polyfill-newrelic killmails PHP

Killmails polyfill for the New Relic PHP extension

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timed-transition anseki JavaScript

The simple shim for Transition Events with CSS transitions, that transparently intercepts difference between browsers.

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Array.prototype.forEach es-shims JavaScript

Array.prototype.forEach spec-compliant polyfill

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Event-constructor-polyfill.js erovas JavaScript

Polyfill Event constructor for Internet Explorer 11

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kphpunit VKCOM PHP

KPHP polyfill-like package for the PHPUnit.

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math-base-special-acsch stdlib-js JavaScript

Compute the hyperbolic arccosine of a number.

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Emik.Net20Records Emik03 C#

Adds C# 9/10's record/record struct support for .NET Framework 2, 3, and 3.5.

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polyfill-io-docker raed667 Dockerfile

Self-host your own Polyfill.io Docker image.

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readable-stream-polyfill kettanaito TypeScript

"ReadableStream" polyfill based on the eponymous implementation from Node.js.

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promise.any2 Lete114 JavaScript

Promise.any() implementation

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Array.prototype.slice es-shims JavaScript

ES spec-compliant `Array.prototype.slice` shim/polyfill/replacement that works as far down as ES3

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Set.prototype.symmetricDifference es-shims JavaScript

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

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Set.prototype.union es-shims JavaScript

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

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Set.prototype.difference es-shims JavaScript

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

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Set.prototype.isSupersetOf es-shims JavaScript

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

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Set.prototype.isDisjointFrom es-shims JavaScript

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

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ArrayBuffer.prototype.detached es-shims JavaScript

ES Proposal spec-compliant shim for ArrayBuffer.prototype.detached

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readable-stream Sec-ant TypeScript

A Simple Yet Spec-Compliant Asynchronous Iteration Polyfill for ReadableStreams from Web Streams API

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SuppressedError es-shims JavaScript

ES Proposal spec-compliant shim for SuppressedError

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sturdy-giggle dpthegrey TypeScript

Typescript React Fitness Application

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hexo-webp-polyfill MBRjun JavaScript

WebP image format browser polyfill for Hexo.

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es.shim bytedo JavaScript

实现部分新API, 以及一些常用的扩展方法。 nodejs和浏览器通用,

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WithHook Ir1s666 TypeScript

React hoos for low version React(lower than 16.8), which can be used in class components

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array-buffer-byte-length inspect-js JavaScript

Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.

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create-html-document-polyfill kapouer JavaScript

createHTMLDocument polyfill and IE 11 fixer

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Repositories (762)