definition - What is AJAX, really?

Question

I have to start using AJAX in a project and I don't know where to start. Can someone please help?

Answer 1

Asynchronous JavaScript And Xml. A technique for achieving bi-directional, script-driven communications between Web browsers and servers via HTTP.

See also:

• definition on Wikipedia
• AJAX Introduction on w3schools
• Ajax Workshop 1 on Ajax Lessons

Edit: As pointed out by Nosredna, JSON is often used in place of XML.