Chapter: Internet & World Wide Web HOW TO PROGRAM - The Ajax Client - Ajax-Enabled Rich Internet Applications

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History of Ajax

The term Ajax was coined by Jesse James Garrett of Adaptive Path in February 2005, when he was presenting the previously unnamed technology to a client.

History of Ajax

 

The term Ajax was coined by Jesse James Garrett of Adaptive Path in February 2005, when he was presenting the previously unnamed technology to a client. The technologies of Ajax (XHTML, JavaScript, CSS, the DOM and XML) have all existed for many years.

 

Asynchronous page updates can be traced back to earlier browsers. In the 1990s, Netscape’s LiveScript made it possible to include scripts in web pages (e.g., web forms) that could run on the client. LiveScript evolved into JavaScript. In 1998, Microsoft intro-duced the XMLHttpRequest object to create and manage asynchronous requests and responses. Popular applications like Flickr and Google’s Gmail use the XMLHttpRequest object to update pages dynamically. For example, Flickr uses the technology for its text editing, tagging and organizational features; Gmail continuously checks the server for new e-mail; and Google Maps allows you to drag a map in any direction, downloading the new areas on the map without reloading the entire page.

 

The name Ajax immediately caught on and brought attention to its component tech-nologies. Ajax has become one of the hottest web-development technologies, enabling webtop applications to challenge the dominance of established desktop applications.


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