AJAX
AJAX
Ajax is a special language that concentrates on the treatment of web pages. It aims at mimicking the speed, efficiency and functionality of any desktop application found on the web. With this, the user receives an immediate response on clicking on a button or a link and when submitting text and interacting in any other way with a website. Other script languages make the page reload when a person interacts with the site. However by using
Ajax, one can easily eliminate this extra time used to reload a page.
Ajax uses JavaScript to respond to the user input without seeing any need of returning back to the server.
JavaScript is the main language Ajax uses to reduce calls made to the server to only data requests. It also helps in manipulating web pages, helps in providing response to the user input and also helps in communicating with the server. Though JavaScript is sometimes considered to be a web development script of the past,
Ajax has helped revitalize this script to a revolutionary means of developing applications for the web.
All of Ajax applications depend on JavaScript’s manipulation of the web page, its communication with the server and the very fact that practically all modern browsers accept JavaScript. With an
Ajax application any communication to the server is restricted to the exchange of data which is usually in XML. However with the help of JavaScript’s scripting capability using XML it is possible for the application to communicate asynchronously with the server. This permits the other parts of the application to work normally while it sends and receives data.
The most important point for JavaScript’s affinity to Ajax is its portability with any modern browser. There are also occasional needs for cross-browsers to reach maximum portability. However with the modifications chalked for Internet Explorer in IE7, there will not be a need of cross-browsers in the future.
If you intend to develop Ajax applications, you will have to have your favorite web developing software. This software can be something complex like Dreamweaver or something simple as Notepad. To test JavaScript in your application, you will need something like Firefox’s JavaScript console that is found in the ‘tools’ menu where you will be able to view errors that the browser poses to you.
You can also use one of the many JavaScript libraries that are specially geared towards Ajax to develop
Ajax applications. These libraries help in both page manipulation and remote scripting.
Ajax has a limited presence in the web; however whatever its presence, it has greatly improved the functionality in numerous sites like Google Maps, Gmail and other Google products. Google is the company that has invested lots of time and money in
Ajax technology.
Ajax provides users with instantaneous response, with no need of annoying page reloads.
Ajax can also be used to develop web portals where windows, contextual menus and movable elements are created using JavaScript. With this you find a desktop interface where you find it possible to assemble information from numerous sources. In addition to all this,
Ajax is also helps in easing the portability of desktop applications to the web like word processors, graphic programs and online banking. So it can be seen that
Ajax’s capacity of changing web pages on the fly and asynchronous communication with servers makes
Ajax provide limitless applications in the development of web applications.