JavaScript Debugger for Understanding Source Code
<h2>Context</h2>

<p>I am trying to understand the internals of a big, hairy JavaScript library.</p>

<p>I already have the un-minified version.</p>

<p>JavaScript's dynamic-ness is making it hard for me to guess what is happening by just reading the code.</p>

<p>I want something like gdb ... where I can "step" through each individual JavaScript function / line of code.</p>

<h2>Question:</h2>

<p>What browser (Safari? Firefox? Chrome?) should I be using, and with what plugin?</p>

<p>Thanks!</p>
