TextTrackList: getTrackById() method
The TextTrackList method
getTrackById() returns the first
TextTrack object from the track list whose
id matches the
specified string. This lets you find a specified track if you know its ID
string.
Syntax
js
getTrackById(id)
Parameters
id-
A string indicating the ID of the track to locate within the track list.
Return value
A TextTrack object indicating the first track found within the
TextTrackList whose id matches the specified string. If no
match is found, this method returns null.
The tracks are searched in their natural order; that is, in the order defined by the media resource itself, or, if the resource doesn't define an order, the relative order in which the tracks are declared by the media resource.
Specifications
| Specification |
|---|
| HTML Standard # dom-texttracklist-gettrackbyid-dev |
Browser compatibility
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