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I know how to do it in Firefox - how do I see Javascript errors in Chrome?

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You have following options:

  • Chrome: Press Ctrl+Shift+J (Cmd+Option+J on Mac) and it will give similar functionality. Also consider checking out JavaScript debugger in Chrome. Hitting F12 works as well.

  • IE7: Nothing built in. But have a look at IE Developer Toolbar.

  • IE8: Just hit F12 and you will get access to some very capable built-in tools. Error console is on Script tab.

  • Firefox: Just use FireBug.

  • Opera: Press Ctrl+Shift+I (Cmd+Option+I on Mac) to launch Opera Drangonfly which is a fully featured development and debugging tool integrated into the Opera browser.

  • Safari: Enable the Developer Menu from Safari's preferences. It will give access the various tools (Error Console, Web Inspector, JavaScript Profiler, etc). Of course there are also shortcuts, like Cmd+Alt+C for the console.

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Please do not include irrelevant links in posts, especially if you are directly affiliated with the website being linked. All self-promotion must correspond to the rules outlined in the FAQ. – nhinkle Nov 24 '12 at 9:30

found it myself: developer tools, then there's a symbol at the bottom left "show console"

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For other options, see webkit.org/blog/197/web-inspector-redesign and developer.apple.com/safari/library/documentation/… (though written for Safari, many things are based on WebKit). – Arjan Oct 7 '09 at 13:54
    
(And please accept your answer to mark the question as solved) – Arjan Oct 7 '09 at 14:20
    
i will as soon as i can... "you can accept your own answer in 2 days" so this is a chance for easy points: post my answer yourself and I'll accept you. :D – Epaga Oct 7 '09 at 14:38
    
Please don't forget to accept this (or Millhouse's answer) as otherwise the question will keep popping up. Thanks. – Arjan Nov 6 '09 at 17:27

Any of these:

  • Hit F12 or Ctrl+Shift+I
  • right-click on any element on the page, and "Inspect Element"
  • Wrench button -> Tools -> Developer Tools

Then go to Console tab

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Also, when you are viewing are a page, right-click, select 'Inspect element'

This opens Developer tools in html inspector mode - select 'console' and you can view errors by clicking 'errors' at the bottom

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