The web has become very glamorous. I have not done any serious Web development lately mainly because I have become a blogging addict. I have recently been try to keep up with the developer world. Since I have been playing away, I learnt that a new kid on block, Ajax is taking the web developer world by storm. This is not the household bleach cleanser in this case. It is an abbreviation for Asynchronous Javascript Technology and XML.

Ajax has moved from an obscure and rarely used technology to the hottest thing since sliced bread. In case you have not heard of Ajax, Curt Hibbs narrates the history of Ajax in 60 seconds or less:

In the beginning, there was the World Wide Web. Compared with desktop applications, web applications were slow and clunky. People liked web applications anyway because they were conveniently available from anywhere, on any computer that had a browser. Then Microsoft created XMLHttpRequest in Internet Explorer 5, which let browser-side JavaScript communicate with the web server in the background without requiring the browser to display a new web page. That made it possible to develop more fluid and responsive web applications. Mozilla soon implemented XMLHttpRequest in its browsers, as did Apple (in the Safari browser) and Opera.

XMLHttpRequest must have been one of the Web's best kept secrets. Since its debut in 1998, few sites have used it at all, and most developers, if they even knew about it, never used it. Google started to change that when it released a series of high-profile web applications with sleek new UIs powered by XMLHttpRequest. The most visually impressive of these is Google Maps, which gives you the illusion of being able to drag around an infinitely sizable map in its little map window.

While Google's prominent use of XMLHttpRequest dramatically demonstrated that vastly improved UIs for web apps were possible, it was Jesse James Garrett's February 18 essay that finally gave this technique a usable name: Ajax (Asynchronous JavaScript and XML). That was the tipping point. Without knowing it, we as an industry had been waiting for this, and the new Ajax name spread like wildfire. I have never seen such rapid and near universal adoption of a new technology moniker!

Ajax on Rails has useful information on how to pimp your web.


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