jQuery - The Write Less, Do More, JavaScript Library.
AngularJS - AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.
Modernizr - Modernizr is a JavaScript library which is designed to detect HTML5 and CSS3 features in various browsers.
Vue.js - Reactive Components for Modern Web Interfaces
React Native - A framework for building native apps with React
React - A JavaScript library for building user interfaces