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Yahoo UI JavaScript library

Yahoo! User Interface Library is an open source javascript library made for creating  AJAX based rich user interface. For example, yahoo mail is created using this! Therefore you will understand how powerful it is.

Basically YUI library is a set of components which supports different kinds of web applications. These components are divided up into few categories.

• Control/Widgets
• Container Components(Panel, Dialog, Tooltip)
• UI Widgets(Button, Calender, Menu)
• Components which communicate with Serverside module.
• Event handling and DOM Components
• Controller for animation, drag & drop, page layout

All the components are sourced out in 3 ways, normal, with debugger, extracted.

jQuery and YUI are both good library; However, there are some parts much easier for each. Therefore, we should be able to use one of them completely so that there will not be any problem because both of them can do pretty much same thing except that they have to be implemented in different ways