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What Is AJAX In Web Development-Definition & Working


What is Ajax

Ajax stands for  Asynchronous JavaScript and XML. Ajax is way to create dynamic web pages .It is is a group of inter related Web development techniques which are used on the client-side to create asynchronous Web applications.

Ajax is not a programming language , it is way to implement already working programmer Javascript and XML

To learn ajax you need a basic knowledge of

AJAX is method to update small data is webpage ,without uploading whole webpage asynchronously . All of the process is done behind the scenes . In not disturbs users and all functions and processes are done without complete page load .


In www.facebook.com when user click on like button on any image or post , status is immediately changed without updating whole webpage . To change this like status a process is done ,but this process is not seen on your webpage (this is called behind the scenes).

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And other other thing is only like button status is changed ,without re-uploading whole webpage . It means only small amount of data is interchanged with web server .

How Ajax Works

Ajax is designed or developed for communicate and exchange data with server , using javascript and XML . To comunicate with server ajax use follow way

  • Create a HTTP request for communicate with server
  • Send Request to Server .
  • Receive Response of server .
  • Update data of a specific part of web page .

Benefits and uses of AJAX

Ajax is very uses technique in web development . It is used to create dynamic web application with less bandwidth usage .

It communicate with server and update that data which is required , not full web page is reloaded .This is the reason ,ajax use less data or bandwidth .

It real time update ,the webpage . Google search is an other example of ajax . When user type any world in search bar ,immediately results are displayed under the search bar without click enter and without loading page .

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