Do You Know What is AJAX ?

AJAX : Asynchronous Java And XML

Ajax is a set of programming techniques or a particular approach to Web programming. These programming techniques involve being able to seamlessly update a Web page or a section of a Web application with input from the server, but without the need for an immediate page refresh. This doesn’t mean that the browser doesn’t make a connection to the Web server.

Ajax doesn’t have to use XML, and neither does it have to be asynchronous. Ajax applications can use XML, and they can be updated asynchronously. These are quite common tricks and techniques used to update the page, but they are not tied to these technologies.

Here are the technologies he specifically mentioned:

  • XHTML and CSS
  • The Document Object Model (DOM)
  • JavaScript
  • XML and XSLT
  • The XMLHttpRequest object

In reality, to create an application using Ajax techniques you need only three of these: XHTML, the DOM, and JavaScript. If you do any amount of development with Ajax techniques, though, you will almost certainly need to use all of the technologies at some point.

You’ll also probably need a server-side language to handle any interaction with the server. This is most typically one of the following three:

  • PHP
  • ASP.NET (Visual Basic.Net/C#)
  • Java

This is the Overview of AJAX.

In my Next Post I will write that how to use AJAX in PHP ?

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