WHAT'S IN THIS CHAPTER?
Understanding jQuery and Ajax
Adding scripts only when needed
Making interactive interfaces with Ajax in WordPress
Implementing security checks in your Ajax requests
JQUERY–A BRIEF INTRODUCTION
Benefits of Using jQuery
What makes jQuery such a great library and the reasons why it comes with WordPress are among the following:
It is light: The minified and gzipped library is only 24kb.
It uses a quick and terse syntax for faster developing (the write-less-do-more library).
It is completely a cross browser: What you develop works the same in IE 6+, Firefox 2+, Safari 3+, Chrome, and Opera 9+.
It is CSS3-compliant: ...