Live javascript debugging by recording function calls and parameters [duplicate]

Answer 1

As I was reading the answers and laughing at the duplicate answers of "You can use Firebug!" I realized.... you can use Firebug.

Seriously, it has a "profile" command that does exactly what you are asking for. Safari and Chrome have this feature so you can check in there as well. IE8/9 has a "profiler" tool which is similar (but I don't know if it can be called from JavaScript with console.profile())

This will give you accurate times since any code and logging you add would also afect the actual performance. And because this feature is in the top browsers, you get a reasonable amount of data.

Answer 2

Yes. all major browsers have a debugger built-in (IE, Chrome, Safari), or available as a add-on (Firebug for Firefox).

Answer 3

If you're talking about browser-side javascript dedub you can use Firebug, which is an excellent tool.

http://getfirebug.com/

Here you can find a step-by-step tutorial:

http://www.digitalmediaminute.com/screencast/firebug-js/

Answer 4

Arguably the best online Javascript Code Quality Controll is JSLint. It not only checks code for errors, it improves the coding style of programmes entirely<< this is the reason the author has made it in the first place. My 0,02 $

http://www.jslint.com/

Answer 5

I've found fireflow: https://addons.mozilla.org/en-us/firefox/addon/fireflow/ incredible helpful.

Answer 6

for Firefox Firebug for IE deeloper tool for chrome built-in debugger is nice to use