有没有一种简单的方法来查找阻止事件默认值的代码？

Question

This issue has come up for me a few times:

I write some code that handles an event, for example a click. I click the element and nothing happens. Some other code is calling e.preventDefault() before my code has the chance to handle it.

Question:
Is there a way to find the code that is preventing default that i have overlooked?

I usually solve this by running javascript profiler in firebug and looking at every function that is called during the click (not inside jquery etc) that may be doing the evil. There has to be a better way.

Answer 1

I would put a test alert in the function that is supposed to execute, starting at the top and then moving it downwards after each statement. If the alert doesn't execute at the top of the function I would check your HTML element and how you are selecting it. If everything appears to be good, I would search your files using possible element selectors.