What is AJAX All About
Ajax, the name given to the combination of Asynchronous JavaScript and XML, allows Internet users to perform particular requests by creating active web applications. This application synchronizes different tools in order to perform the user’s request. The tools that are used by this application are XML, JavaScript, DHTML, CSS, DOM, and XMKHttpRequest, all of which are created by Microsoft. All of these tools work together in order to allow the request of the user to open in the browser window they have open, rather than making the user wait for a totally new page to load.
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.
It took some tweaking to allow Ajax scripting to work with other web browsers besides Internet Explorer and on other operating systems besides Microsoft Windows. Once the application was expanded for use to other browsers, it also was designed so that a new download did not have to be prompted in order for the application to be used. This was done by writing the application into HTML or JavaScript code. With these tweaking techniques came the ability for more individuals to use the application.
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