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TextTrackList: change event

The change event is fired when a text track is made active or inactive, or a TextTrackList is otherwise changed.

Syntax

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

js

addEventListener("change", (event) => {});

onchange = (event) => {};

Event type

A generic Event with no added properties.

Examples

Using addEventListener():

js

const mediaElement = document.querySelectorAll("video, audio")[0];
mediaElement.textTracks.addEventListener("change", (event) => {
  console.log(`'${event.type}' event fired`);
});

Using the onchange event handler property:

js

const mediaElement = document.querySelector("video, audio");
mediaElement.textTracks.onchange = (event) => {
  console.log(`'${event.type}' event fired`);
};

Specifications

Specification
HTML Standard
# event-media-change
HTML Standard
# handler-tracklist-onchange

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
change_event 33 18 31 No 20 7 4.4 33 31 20 7 2.0

See also

© 2005–2023 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/TextTrackList/change_event