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Slides from a talk given at Async Brighton on the 9th December 2010
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A Crash Course in Debugging JavaScript in the Browser

Talk given at Async Brighton on Thursday 9th December 2010.

Slides available at


A crash course in debugging JavaScript in the browser, with Aron Carroll.

Nobody writes perfect code on the first attempt, so it’s important to be able to locate and fix bugs quickly. Fortunately all modern browsers have tools to inspect our code and find errors with ease.

In this session, we’ll take a look at the browser’s console and debugger to pause running JavaScript with ‘breakpoints’ and step through the code in order to find the source of an error. We will see how to get the most out of the Web Inspector in Safari and Chrome, as well as the popular Firebug add-on for Firefox.

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