JavaScript polyfills

npm install polyfill
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Polyfill Build Status

A collection of polyfills for standard JavaScript features.


This is intended for use with node-shimmy, and not really a standalone module.


var polyfill = require('polyfill')

polyfill('Array.prototype.forEach', function(error, polyfillSource) {
  // return the JavaScript source for the given polyfill

if (polyfill.defines('Date.now')) {
  // check if a polyfill is defined for a given feature name

// Print out list of defined polyfill names


Open source software under the zlib license.

Many polyfills based on documentation on MDN and ecmascript.org.

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