# Examine Event Listeners

The inspector shows the word "event" next to elements in the {ref}`HTML Pane  <page-inspector-ui-tour-html-pane>`, that have event listeners bound to them:

```{image} inspect_element_with_eventhandler.png
:class: border
```

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

```{image} inspector_event_handlers.png
:class: border
```

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:

  - standard DOM events
  - [jQuery events](https://api.jquery.com/category/events/)
  - [React events](https://facebook.github.io/react/docs/events.html)
