TextTrackList: change event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since October 2018.

See full compatibility

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.

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

onchange = (event) => { }

Event type

A generic Event with no added properties.

Examples

Using addEventListener():

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

Using the onchange event handler property:

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

Specifications

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

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`change` event	Chrome – Full support Chrome 33 (Release date: 2014-02-20) footnote Full support	Edge – Full support Edge 18 (Release date: 2018-10-02) footnote Full support	Firefox – Full support Firefox 31 (Release date: 2014-07-22) footnote Full support	Opera – Full support Opera 20 (Release date: 2014-03-04) footnote Full support	Safari – Full support Safari 7 (Release date: 2013-10-22) footnote Full support	Chrome Android – Full support Chrome Android 33 (Release date: 2014-02-26) footnote Full support	Firefox for Android – Full support Firefox for Android 31 (Release date: 2014-07-22) footnote Full support	Opera Android – Full support Opera Android 20 (Release date: 2014-03-06) footnote Full support	Safari on iOS – Full support Safari on iOS 7 (Release date: 2013-09-18) footnote Full support	Samsung Internet – Full support Samsung Internet 2 (Release date: 2014-10-17) footnote Full support	WebView Android – Full support WebView Android 4.4 (Release date: 2013-12-09) footnote Full support	WebView on iOS – Full support WebView on iOS 7 (Release date: 2013-09-18) footnote Full support

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Full support: Full support