Examine Event Listeners

The inspector shows the word “event” next to elements in the HTML Pane, that have event listeners bound to them:


Click the icon, then you’ll see a popup listing all the event listeners bound to this element:


Each line contains:

  • a right-pointing arrowhead; click to expand the row and show the listener function source code

  • the name of the event for which a handler was attached to this element

  • the name and line number for the listener; you can also click here to expand the row and view the listener function source code

  • a curved arrow pointing to a stack; click it to show the code for the handler in the debugger

  • a label indicating whether the event bubbles

  • a label indicating the system that defines the event. Firefox can display: