October 2006
Intermediate to advanced
288 pages
5h 55m
English
Content preview from Ajax for Web Application Developers
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Chapter 6. Creating the Engine
In Chapter 2, “The Request,” we created a few functions to create an XHR, and handle receiving and displaying a response. This solution works fine in many cases, especially for simple Ajax-based web pages, but it is not the best solution for large web applications. In order to manage multiple requests and delegate responses to specific requesting objects, we will create an Ajax engine. This engine will consist of two objects: Ajax and AjaxUpdater. The AjaxUpdater will manage all requests and delegate them to the Ajax object. The Ajax object will receive the requests from the AjaxUpdater and instantiate an XHR object. After the XHR object has been instantiated and the requesting object receives a response, the requestor ...
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