What is a good Javascript debugging tool?

Question

Haven\'t touch javascript for 3 years. Just got a javascript project and wanted to know any new ways or tools emerged these years to debug javascript? I used alert 3 years

Answer 1

I realize I'm answering a question you didn't ask, but have you tried jQuery? It's a javascript library that abstracts a lot of the DOM manipulation stuff for you so you don't have to worry so much about cross-browser compatibility issues. There are other similar libraries out there, but I believe jQuery has the biggest following at the moment. http://jquery.com/

I use Firebug in Firefox every day. In addition to debugging Javascript (and by extension, jQuery or any other js library), it's a great for CSS debugging.