HTMLMediaElement: durationchange event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

js
addEventListener("durationchange", (event) => {});

ondurationchange = (event) => {};

Event type

A generic Event.

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():

js
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:

js
const video = document.querySelector("video");

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

Specifications

Specification
HTML Standard
# event-media-durationchange
HTML Standard
# handler-ondurationchange

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
durationchange event

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

See also