Polyfill Packages

Get location of code point in a string or get code points from string

W3C compliant EventSource client for Node.js and browser (polyfill)

A shim for the Media Queries Level 4 `hover` @media feature

A polyfill for the CSS Paint API, with special browser optimizations.

Precise polyfills. Like Autoprefixer, but for JavaScript polyfills

ES2015 Number.EPSILON ponyfill

A wrapper for import Web Animations API JS Polyfill for React

Polyfill for the proposed React context API

Polyfill for SVG 2 getPathData() and setPathData() methods

Feature detection triggered dynamic polyfills

The super simple shim for `classList` of HTML and SVG, that transparently intercepts difference between modern browsers and semi-modern browsers.

A window.CustomEvent polyfill, which agressively autopolyfills for test environments

cache polyfill, Offline storage, Wraps IndexedDB, without https/ssl

The web polyfill for BindingX.

Uses dynamic imports to load polyfills

Polyfill for making HTML5 drag and drop possible in all browsers.

ECMAScript feature and API detection

replace `Array.from` with an ponyfill function

A 1.53kB browser polyfill for the Node.js `URL` and `URLSearchParams` classes

A polyfill of unknown that works with legacy typescript versions (before 3.0)