polycat — handy polyfills, concatenated together

polycat is a javascript bundle that can teach old dogs new tricks

slap polycat onto any page

<script src="https://raw.githubusercontent.com/chase-moskal/polycat/master/polycat.js"></script>

install polycat properly with npm

1. npm install polycat
2. <script src="node_modules/polycat/polycat.js"></script>

polycat includes these polyfills

• array.find
• es6-promise
• whatwg-fetch

but you should make your own honest bundle

polycat probably has stuff you don't need, or doesn't have things you do need — check out the build script, and consider doing something similar in your own project's build routine — construct your own custom polyfill bundle

polycat is more like an example collection of polyfills known to work the good old fashioned global way (unlike "ponyfills" as they are called)