Polyfill Packages

Polyfills for ECMAScript 2015 Map and Set

downlinkMax is a 0.26KB Network Information API polyfill for navigator.connection.downlinkMax written in both CoffeeScript and JavaScript with AMD support.

polyfill for `KeyboardEvent.prototype.key`

ECMAScript extensions and shims

Adding polyfills to a Node.js environment

Dynamically polyfill only when needed by the browser. Complementary to Polyfill.io

ECMAScript 3 extensions and ES5 shims

a polyfill library for ES6 new String method

Contains polyfills needed for features added in ECMAScript 2017

ensure @babel/(runtime && polyfill) are installed

A basic promise implementation

Polyfill for RFC 566: @memo

Yieldable Named Blocks for Components as per RFC 0460

A polyfill for http://www.w3.org/TR/eventsource/

Provides methods for various apis.

get list of event handlers on a given DOM object (grabbed via jQuery)

A polyfill for the DOM functions of the HTML Parts and Walls spec.

A polyfill for `forEachRight`, works very much the same way as `forEach` but instead iterates in reverse. Useful if you're removing items from the array while you iterate as it won't impact your current index pointer.

fs.accessSync ponyfill for older versions of Node.js

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