Object.observe polyfill/shim trying to be compliant
A lightweight engine that allows you to hitch new capabilities to the browser (prollyfill).
Allows for automatic Image fallbacks for browsers that can't handle SVGs
CSS4 parent selector based on jQuery
⏰ Day.js 2KB immutable date library alternative to Moment.js with the same modern API
Date() for humans
A simple helper to extract values from a string based on a pattern.