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What is AJAX ?
Conventional web application trasmit information to and from the sever using synchronous requests. This means you fill out a form, hit submit, and get directed to a new page with new information from the server.
XML is commonly used as the format for receiving server data, although any format, including plain text, can be used.
AJAX is a web browser technology independent of web server software.
A user can continue to use the application while the client program requests information from the server in the background
Intuitive and natural user interaction. No clicking required only Mouse movement is a sufficient event trigger.
Data-driven as opposed to page-driven
Rich Internet Application (RIA) Technology
AJAX is most viable RIA technology so far. Its getting tremendous industry momentum and several toolkit and framworks areemerging. But same time JAX has browser incompatibility and it is supported by Java Script which is hard to maintain nand debug.
AJAX Is Based On Open Standards
AJAX is based on the following open standards:
- Browser-based presentation using HTML and Cascading Style Sheets (CSS)
- Data stored in XML format and fetched from the server
- Behind-the-scenes data fetches using XMLHttpRequest objects in the browser
AJAX - Recommended Knowledge