Debugging JavaScript

Today I have been pointed to Venkman the Mozilla JavaScript Debugger. It has all the nice things you expect: Breakpoints, Variables, Watches and can be installed as a Firefox-Plugin.

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3 Responses to Debugging JavaScript

  1. Kollege K. says:

    Ahh, finally you’re seeing the light ! I am not the kind of guy who says “I’ve told you so” 😉 But this reinforces my point: Douglas Crockford about JavaScript: The World’s Most Misunderstood Programming Language

  2. Chris says:

    Venbkman is a nice peace of software. In everday use there are two plugins which are very useful:
    Console² (
    which adds some extra functionality to the console (Filter by js-, css- and xml-errors and filter chrome-/user-errors)
    and Firebug (
    This shows quick the number of errors in the active page and has a mighty console. Furthermore it has an own debugger.

    These two are useful because js-errors often occure when you don’t expect them. A status-icon which shows you that (and how much) errors occured avoids wondering why nothing happens.

  3. Лёша says:

    Not to forget also the SessionManager:

    Session Manager saves and restores the state of all windows – either when you want it or automatically at startup and after crashes. Additionally it offers you to reopen (accidentally) closed windows and tabs. If you’re afraid of losing data while browsing – this extension allows you to relax…

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