This is the example site for findHandlersJS
This page has 6 event handlers, see if you can find them all. Make sure you are seeing this page in Chrome, press F12 and make sure you have the console tab selected.
Here's an example you can type in the console:
findEventHandlers("click", "*:contains('+')")
Find more about findHandlersJS here.
Download findHandlersJS from github.