javascript debugging tool

Could someone suggest some tool or how to confi开发者_JAVA技巧gure firebug to display a list of defined variables in separate window.

I want to see variables, when any variable changes it property, at what line of code it have been changes and so on.

Because code becomes pretty big and following all needed variables is pretty hard now.

Have someone seen some tool with such capabilities?

Maybe there is some IDE, that have such functionality?

So basically i need to monitor JavaScript variables at separate window.

Thanks ^_=

1. Open the Firebug pane or window.

2. Click on the "Script" tab.

3. On the right-hand pane, click on the "Watch" tab.

4. Click the "New watch expression...".

5. Type or paste in your variable name.

6. Enjoy!