Leaflet : A Modern, Lightweight Open-Source JavaScript Library for Interactive Maps
Photon : UI toolkit for building desktop apps with Electron.
Backbone.js : Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerabl...
jsmad : jsmad is a pure javascript MP3 decoder, based on libmad, with an ID3 decoder written from scratch.
A project which offers the same Todo application implemented using MV concepts in most of the popular JavaScript MV frameworks of today.