index.md

---

title: AudioTrack.id
slug: Web/API/AudioTrack/id
page-type: web-api-instance-property
browser-compat: api.AudioTrack.id

---

{{APIRef("HTML DOM")}}

The id property contains a string which uniquely identifies the track represented by the {{domxref("AudioTrack")}}.

This ID can be used with the {{domxref("AudioTrackList.getTrackById()")}} method to locate a specific track within the media associated with a media element. The track ID can also be used as the fragment of a URL that loads the specific track (if the media supports media fragments).

Value

A string which identifies the track, suitable for use when calling {{domxref("AudioTrackList.getTrackById", "getTrackById()")}} on an {{domxref("AudioTrackList")}} such as the one specified by a media element's {{domxref("HTMLMediaElement.audioTracks", "audioTracks")}} property.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}