HTMLMediaElement: durationchange event

The durationchange event is fired when the duration attribute has been updated.

Bubbles No
Cancelable No
Interface Event
Target Element
Default Action None
Event handler property GlobalEventHandlers.ondurationchange
Specification HTML5 media

Examples

These examples add an event listener for the HTMLMediaElement's durationchange event, then post a message when that event handler has reacted to the event firing.

Using addEventListener():

const video = document.querySelector('video');

video.addEventListener('durationchange', (event) => {
  console.log('Not sure why, but the duration of the video has changed.');
});

Using the ondurationchange event handler property:

const video = document.querySelector('video');

video.ondurationchange = (event) => {
  console.log('Not sure why, but the duration of the video has changed.');
};

Specifications

Specification Status
HTML Living Standard
The definition of 'durationchange media event' in that specification.		 Living Standard
HTML5
The definition of 'durationchange media event' in that specification.		 Recommendation

Browser compatibility

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See also