Introduction:

1. 35% of all sites that use JavaScript, use jQuery
2. 1 out 5, of all sites, use jQuery.

Example:

• reddit.com
• bing.com

Jquery:

1.  jQuery is a JavaScript Library.
2.  Simplicity, Speeds up web development
3.   Avoids common headaches w/ browsers
4.   Extensive list of plugins
5.   Large & active community
6.   Extensive test coverage (50 browsers, 11 platforms)
7.   API for both coders and designers.

what is a plugin?

•  A plugin is nothing more than a custom jQuery method created to extend the functionality of   the jQuery object (Ex: $(‘ul’).myPlugin()).
• You want to “find something”, and “do something” but the “do something” is not available in jQuery.
• Roll your own “do something” with a plugin.

A jQuery plugin steps:

    Plugins are simple, just follow the steps

      Step 1. create a private scope for $