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Learning jQuery Third Edition by Karl Swedberg, Jonathan Chaffer

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Chapter 3. Handling Events

JavaScript has several built-in ways of reacting to user interaction and other events. To make a page dynamic and responsive, we need to harness this capability so that we can, at the appropriate times, use the jQuery techniques we have learned so far and the other tricks we'll learn later. While we could do this with vanilla JavaScript, jQuery enhances and extends the basic event handling mechanisms to give them a more elegant syntax, while at the same time making them more powerful.

Performing tasks on page load

We have already seen how to make jQuery react to the loading of a web page. The $(document).ready() event handler can be used to fire off a function's worth of code, but there's a bit more to be said about it. ...

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