Ajax Technology

Asynchronous JavaScript and XML or Ajax for short is a type of asynchronous programming technical to develop Internet applications. Google made it popular by incorporating the technology in its search engine interface in the year 2005. ‘Google Suggest’ is the most popular Ajax application.

Ajax is a combination of several technologies that works together to make a web application similar to traditional windows desktop applications. Ajax fills the gap between desktop application and web application. It brings richness of desktop application into Internet world. It is possible to develop highly interactive web applications using Ajax frameworks. The Ajax technologies make it possible
to create better, faster, and user-friendlier Internet and Intranet web applications with ease. Examples of Ajax based applications are Gmail and Yahoo Mail.

These days, there is a huge popularity of Rich Internet application in the programming world and companies are looking for Rich Internet applications for their clients. Rich Internet application or RI is nothing but Ajax based application that brings richness and responsiveness to the web applications.

Components of Ajax Technology

Ajax is based on many existing technologies such as CSS, HTML, DHTML and JavaScript, by which programmers are already familiar with in developing web applications.

So, learning Ajax is easy and it requires less time. Let’s understand the core components of Ajax Technology. Ajax application uses the following technology in combination:

• XHTML, HTML and CSS
  These are used for creating the UI and styling the web pages to make it more appealing.
• DOM
  The Document Object Model or DOM is used by the JavaScript code to produce interactive Ajax applications.
• XMLHttpRequest or XMLHTTP
  XMLHttpRequest or XMLHTTP is used to retrieve the data from server.
• Java Script
  JavaScript is used to bind everything together.