The AudioTrackList onremovetrack event handler is called when the removetrack event occurs, indicating that an audio track has been removed from the media element, and therefore also from the AudioTrackList.
The event is passed into the event handler in the form of a TrackEvent object, whose track property identifies the track that was removed from the media element's AudioTrackList.
Note: You can also add a handler for the removetrack event using addEventListener().
Syntax
AudioTrackList.onremovetrack = eventHandler;
Value
Set onremovetrack to a function that accepts as input a TrackEvent object which indicates in its track property which audio track has been removed from the media element.
Example
This simple example just fetches the current number of audio tracks in the media element whenever a track is removed from the media element.
document.querySelector("my-video").audioTracks.onremovetrack = function(event) {
myTrackCount = document.querySelector("my-video").audioTracks.length;
};
The current number of audio tracks remaining in the media element is obtained from AudioTrackList property length.
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'AudioTrackList.onremovetrack' in that specification. |
Living Standard | |
| HTML5 The definition of 'AudioTrackList.onremovetrack' in that specification. |
Recommendation |
Browser compatibility
No compatibility data found. Please contribute data for "api.AudioTrackList.onremovetrack" (depth: 1) to the MDN compatibility data repository.