According to this doc netbeans already fixed it, i think you should update to 7.3.1 from the main page, and it will work again.
Also, i suggest to report the bug to them, might help for further users.
GoodLuck!
Question
Since upgrading to netbeans 7.3, I got into a problem where netbeans does not automatically provide me the parameter names.
For example,
In the autocomplete pop-up, I will see a "methodA(param1,param2) xxx.js". But once I click on it or press enter, it will only fill in methodA(). Ctrl+ P does not give me the parameter list either.
This is very annoying that I have to go find out the entire parameter list. IS there any way to overcome this?
Solution
According to this doc netbeans already fixed it, i think you should update to 7.3.1 from the main page, and it will work again.
Also, i suggest to report the bug to them, might help for further users.
GoodLuck!
OTHER TIPS
The shortcut to find the function is cntrl+space
By default, autocomplete is disabled for javascript variables, go to preferences > Editor > code completion > Javascript > and select all possible situations That was my issue at least :)