High-performance JavaScript: Why everything you've been taught is wrong
YUI Library
IMPORTANT: The YUI library is no longer actively maintained. Please see this announcement for more information.
        
            
                YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
            

            
                
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            Why YUI?
        

        
                
                        Fast
                        YUI's lightweight core and modular architecture make it scalable, fast, and robust. Built by frontend engineers at Yahoo!, YUI powers the most popular websites in the world.
                    

                
                        Complete
                        YUI's intuitive and well-documented API takes you from basic DOM handling to building performant and maintainable applications on desktop browsers, mobile devices, and servers.
                    

                
                        Industrial Strength
                        A thriving community, a carefully architected infrastructure, and a comprehensive suite of tools help you code like a pro, from simple web pages to complex web applications.
                    

                
            

        
            
            A Few Examples
        

        

        
    