inBandMetadataTrackDispatchType read-only property of the
TextTrack interface returns the text track's in-band metadata dispatch type of the text track represented by the
An in-band metadata dispatch type is a string extracted from a media resource specifically for in-band metadata tracks. An example of a media resource that might have such tracks is a TV station streaming a broadcast on the web. Text Tracks may be used to include metadata for ad targeting, additional information such as recipe data during a cooking show, or trivia game data during a game show.
The value of this attribute could be used to attach these tracks to dedicated script modules as they are loaded.
string containing the
inBandMetadataTrackDispatchType, or an empty string.
In the following example the value of
inBandMetadataTrackDispatchType is printed to the console.
let video = document.querySelector('video');
let track = video.addTextTrack("captions", "Captions", "en");
track.mode = "showing";