Learn how to apply basic Asynchronous JavaScript + XML (Ajax) techniques in jQuery, such as making a request; handling success and error responses; and parsing the results from JavaScript Object Notation (JSON), XML, HTML, and dynamic PHP data sets.
It’s no surprise that Ajax is a great way to enhance a web application. However, sometimes the code you need to write can take more time than traditional development techniques, especially when you’re interacting with dynamic server-side data sets. Luckily, with the introduction of jQuery, there’s now a quicker and more robust way to write JavaScript and Ajax code. The suite of Ajax functions available through jQuery makes Ajax development much easier than in the past by letting you write less code and by lending additional methods and event handlers to cover most situations.
Read the original article at IBM Developerworks