HTML waiting DOM Event: Reference and Examples

When someone interacts with a webpage, the browser sends events to the relevant JavaScript code. The waiting event happens when playback stops temporarily while awaiting media data.

When waiting happens

Playback stops temporarily while awaiting media data.

You can listen for it using addEventListener(). That keeps event handling separate from HTML attributes such as onclick and works well with modern code organization.

A small working example

<video id="demo-target" controls preload="metadata" width="320">
    <source src="sample-video.mp4" type="video/mp4">
</video>
<p id="event-status" role="status">Waiting for waiting...</p>
<script>
    const eventTarget = document.getElementById("demo-target");
    const eventStatus = document.getElementById("event-status");

    if (eventTarget) {
        eventTarget.addEventListener("waiting", (eventDetails) => {
            eventStatus.textContent = "waiting event received";
            console.log(eventDetails.type, eventDetails.target);
        });
    }
</script>

Reading the code

The browser listens for waiting on the relevant target. When the event occurs, the callback receives eventDetails, updates the status message and logs the event name and target in Developer Tools.

Throttle the connection during playback; the event signals buffering.

To test this example, put a real supported media file at the shown path. Events tied to buffering or download behavior may not fire in the same order on every connection. An unavailable sample file is not proof that your event listener is broken.

Try it in your browser

Open the page, show the Console panel, and follow this test: Throttle the connection during playback; the event signals buffering. Then change one thing in the example and observe whether the event still fires.

Common Beginner Mistakes

• Expecting waiting to fire without its required user action or browser condition.
• Throttle the connection during playback; the event signals buffering.
• Adding repeated event listeners without considering cleanup or unwanted side effects.

Key Takeaways

• waiting reports playback stops temporarily while awaiting media data.
• addEventListener("waiting", ...) listens for the event on the appropriate target.
• Throttle the connection during playback; the event signals buffering.