Use Firebug JavaScript


show more Get the most out of Firebug, the popular debugging tool for Firefox. Learn how to use the console to view messages, scan HTML in the HTML tab, view the DOM, and, most importantly for JavaScript developers, use the Script panel to perform JavaScript debugging. show less
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Using Firebug

So we've been using Firefox with Firebug, although these days every modern web browser has the equivalent tools. Safari has their developer tools menu, as does Internet Explorer, as does Chrome, Opera has Dragonfly, and without exception, these days, they are all very, very good, but Firebug is certainly the best known. Now we've been mainly using it so far for the Console panel to view console messages and to type JavaScript, but it's much more useful than that. If you haven't used this already, you can use the HTML tab to actually scan and expand the HTML that you're using.

If you notice that as I'm mousing over different sections here, it's actually highlighting in the top part of the page. And you can view the DOM, the actual Document Object Model of this page. I can see the document here, start to open that up, and drill down inside it. The DOM is very useful, but it can be a little intimidating at first because you'll realize there is a lot more going ...

Using Firebug
Video duration: 4m 7s 5h 31m Beginner

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Get the most out of Firebug, the popular debugging tool for Firefox. Learn how to use the console to view messages, scan HTML in the HTML tab, view the DOM, and, most importantly for JavaScript developers, use the Script panel to perform JavaScript debugging.

Subjects:
Developer Web
Software:
JavaScript
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