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How can I use Chrome DevTools to monitor specific events fired on a web page element?

Linda Hamilton
Release: 2024-10-27 17:50:31
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How can I use Chrome DevTools to monitor specific events fired on a web page element?

Monitoring Events in Chrome DevTools

You can monitor events fired on any element using Chrome Web Developer by harnessing the powerful monitorEvents function. Here's how:

  1. Inspect the Target Element: Right-click on the desired element and select "Inspect" or go to the "Elements" tab and select it.
  2. Access the Console: Navigate to the "Console" tab within Chrome Developer Tools.
  3. Invoke monitorEvents: Type the following command into the console:

    monitorEvents(<pre class="brush:php;toolbar:false">unmonitorEvents(<pre class="brush:php;toolbar:false">monitorEvents(document.body, 'mouse')
    Copy after login
    ))

    where $0 represents the selected DOM element.

  4. Observe Event Data: Interact with the element (e.g., mouse over, focus, click) and witness the displayed event names and their associated data.

To stop event monitoring, simply enter the following command:

Alternatively, you can specify an event type as the second parameter to filter monitored events. For instance:

will limit the monitoring to mouse-related events. A list of available event types includes:

  • mouse: mousedown, mouseup, click, dblclick, mousemove, mouseover, mouseout, mousewheel
  • key: keydown, keyup, keypress, textInput
  • touch: touchstart, touchmove, touchend, touchcancel
  • control: resize, scroll, zoom, focus, blur, select, change, submit, reset

The illustrated GIF below demonstrates the usage of the monitorEvents function:

[Image of GIF showing the usage of monitorEvents function]

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