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
- 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 FireBugPress F12. The built-in tools are now quiet good. - 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