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  Tutorial: Javascript Development Events in JavaScript: An Inside Look Tutorial

Events are the glue which hold together the word inter-active. In learning to control and handle events you bridge the gap between a two-dimensional web page and a three-dimensional one. In this article we look closely at events, what they are, how to han

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Events in JavaScritp : An inside Look Tutorial

JavaScript was introduced to make it easier for web pages to "process"; that is, rather than merely display static information, JavaScript could be used to perform calculations, output results to the page, and so on. Typically, this power is best employed when triggered by the user who is, after all, the primary agent in a Web page. Events, then, became an essential tool for linking the user to the page.

A very simple example is a Click event. You may have written some JavaScript code which calculates a subtotal of purchase prices based on user selections. A key factor, though, is when does this code execute? A very basic question indeed. Logically, the code would execute when the user told it to, somehow. It is no great stretch to imagine a web page which sports a "Calculate Total" button. The calculation code, then, should be triggered when the user clicks the "Total" button.


 

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Javascript Development Events in JavaScript: An Inside Look Tutorial

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