Question

I’m stuck modifying someone else’s source code, and unfortunately it’s very strongly NOT documented.

I’m trying to figure out which function is called when I press a button as part of an effort to trace the current bug to it’s source, and I”m having no luck. From what I can tell, the function is dynamically added to the button after it’s generated. As a result, there’s no onlick=”” for me to examine, and I can’t find anything else in my debug panel that helps.

While I prefer Chrome, I’m more than willing to boot up in a different browser if I have to.

Answer 1

In Chrome, type the following in your URL bar after the page has been fully loaded (don’t forget to change the button class):

var b = document.getElementsByClassName("ButtonClass"); alert(b[0].onclick);

or you can try (make the appropriate changes for the correct button id):

var b = document.getElementById("ButtonID"); alert(b.onclick);

This should alert the function name/code snippet in a message box.

After having the function name or the code snippet you just gotta perform a seach through the .js files for the snippet/function name.

Hope it helps!