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Pro Oracle Application Express by Scott Spendolini, John Edward Scott

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CHAPTER 8Ajax and JavaScript

Ajax is an acronym (or rather shorthand) for Asynchronous JavaScript and XML, which is the same sort of JavaScript that APEX already uses extensively behind the scenes, and the same sort of XML that is commonly used in web applications (and other places). Ajax is a collection of technologies that operate together to perform a specific function.

The purpose of Ajax is to make web applications more responsive and interactive from the users' perspective, by avoiding the traditional need to submit and reload an entire web page to change a particular part of it. This is all accomplished by using different features, such as XHTML, the Document Object Model (DOM), the JavaScript XMLHTTPRequest, XML, and some other techniques. ...

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