It is an open source software .It is a cross plateform java script designed to simplify the client site scripting of HTML.It is a fast small and feature rich java script libirary . it makes things like HTML document traversal and manupulation, event handling ,animation and AJAX much simpler with an easy to use API that works across a mulititude of browsers .jQuery also provides capiblities for developers to creat plugins on to of the java script libirary. this enables developers to creat abstraction for low level interaction and animation advance effect and high level themeable widgets .
- Encourages separation of java scripts and HTML.
- Brevity and clarity.
- Elementas cross browsers incompatibilities extensible
- Effects and animation
- JSON parsing
- Multibrowser support.