JavaScript Troubleshooting Tools in Internet Explorer

Question

I use Firebug and the Mozilla JS console heavily, but every now and then I run into an IE-only JavaScript bug, which is really hard to locate (ex: error on line 724

Answer 1

1. Go to Tools->Internet Options…->Advanced->Enable Script Debugging (Internet Explorer)

then attach Visual Studio Debugger when an error occurs.

If you're using IE 8, install the developer toolbar because it has a built in debugger.