Anime.js : Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
It works with CSS properties, SVG, DOM ...
hunt : Library to detect when DOM elements become visible and disappear on scroll.
stream.js : stream.js is a tiny stand-alone Javascript library that unlocks a new data structure for you: streams.
enquire.js : A lightweight, pure JavaScript library for responding to CSS media queries.
TodoMVC : A project which offers the same Todo application implemented using MV concepts in most of the popular JavaScript MV frameworks of today.
Modest Maps is a small, extensible, and free library for designers and developers who want to use interactive maps in their own projects.