Debugging Web(4) - Swiss Army Knives
webWeb Developer Toolbar and Firebug are two must-haves for the Web developers, I will introduce another powerful debugger, venkman later.
Web Developer Toolbar

FireBug
The official website have a very detailed introduction of the FireBug. Further more, the prototype’s author demonstrates the FireBug in action here. Unlike Error Console, the FireBug expose the targeted window’s document node to the global scope, therefore, the developer can test the JavaScript code snippet in the console without hassle.
The console supports one-line command, when you click the Up button on the right, a multi-line textbox is popped out for multiply line code editing. What a considerate design!
