A pure-JavaScript CSS selector engine designed to be easily dropped in to a host library.
Features:
* Completely standalone (no library dependencies)
* Competitive performance for most frequently used selectors
* Only 4KB minified and gzipped
* Highly extensible with easy-to-use API
* Designed for optimal performance with event delegation
SproutCore is an MVC web app framework for developing apps in JavaScript that run inside a web browser. Its goal is to allow developers to create web applications with advanced capabilities and a user experience comparable to that of desktop applications.
Ext JS is a cross-browser JavaScript library for building rich internet applications. It includes:
* High performance, customizable UI widgets
* Well designed and extensible Component model
* An intuitive, easy to use API
* Commercial and Open Source licenses available
MooTools is a compact, modular, Object-Oriented JavaScript framework designed for the intermediate to advanced JavaScript developer. It allows you to write powerful, flexible, and cross-browser code with its elegant, well documented, and coherent API.
MooTools code respects strict standards and doesn't throw any warnings. It's extensively documented and has meaningful variable names: a joy to browse and a snap to understand.
