How do you debug JavaScript in IE? Before IE 8 you could use fiddler and the visual studio debugger. There was a plugin for IE so that you could get a developer toolbar with some extended script debugging. As of IE8 a toolbar is built in and can be reached by pressing F12.

How do you debug javascript in IE? Before IE 8 you could use fiddler and the visual studio debugger.There was a plugin for IE so that you could get a developer toolbar with some extended script debugging. As of IE8 a toolbar is built in and can be reached by pressing F12.

How do you debug code in Firefox? The answer is that you use one of two eminent plugins: Firebug Venkman

How do you debug code in Firefox? The answer is that you use one of two eminent plugins:<ul> Firebug Venkman </ul>

Local procedure calls Given the scripting nature of the web non-obfuscated JavaScript code presents itself to the technical user almost as a public API. You can try it out yourself by writing: for (x in document){console.log(x);} in your browser JavaScript console. For more persistent changes to a sites behavior tools like Greasemonkey can be used. Last.fm and Spotify have done some integration by releasing a Greasemonkey script for last.fm. Remote procedure calls By using fiddler or Firefox Firebug [...]