What is JQuery? Why we have to use JQuery for our applications?

1. JQuery is light weight javascript library. This will remove headache to the developer(who are using javascript applications). 
2. By using this JQuery we can work very efficiently on DOM traversing (Document Object Model), animations, Event handling in javascript, Ajax interactions for server client applications. 
3. JQuery released in the year of Jan 2006. 
4. It is a free open source software. 
5. In Visual studio 2010, JQuery intellisense also available. 
6. JQuery library, designed very simply, easy to understand as well reusable. That's why all people are liking JQuery for their applications. 
7. This is already developed website so, we can call JQuery predefined functions directly. 

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