What Is Ajax?

Ajax, the shorter name for Asynchronous JavaScript and XML, is an application combining different programming tools in order to create a web application. Asynchronous JavaScript works by integrating actions completed by a user on a webpage to perform specific requests in the open browser window, instead of the user having to wait for new windows to load and open. This application utilizes different applications in order to complete this action. They include XML, DOM, CSS, DHTML, JavaScript and Microsoft XMLHTTPRequest.

Ajax operates by the use of an engine acting as a middle man between a user’s browser window and the Internet server from which the user is requesting information. Instead of loading a new page or letting a new window open, the Asynchronous JavaScript and XML application initiates its own engine to display the image seen by the user. JavaScript delivers the messages from the user’s interactions with the webpage, to the engine of the application. The Asynchronous JavaScript and XML engine is what makes the application work instantly without the need for new pages or browser windows to load.

Many sites are now using Ajax to deliver their services more quickly in order to save their users a little more time. Google Maps is an example of the use of this program. On Google maps, a user can manipulate the views and features of the displayed maps in real time, rather than having to wait for new browser windows to load and display the user’s requested changes. Early applications of Asynchronous JavaScript and XML programming were only capable of being used with Internet Explorer browser windows because of the reliance it had on the XMLHttpRequest programming tool that was usable only on a Microsoft Windows platform.

As tweaks were made to the scripting of the Ajax application, it eventually became possible for the application to be used on various web browsers and on numerous other operating systems. Use of the program was expanded out from early versions of Windows, to Windows XP and even to Macintosh operating systems and web browsers. In addition to the expansion of mediums the application could be operated on, also came the lack of a requirement for a new download of the program. The program can now simply be written into the JavaScript or HTML code, allowing the program to reach more users.

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