TextTrackList.getTrackById()
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
var theTrack = TextTrackList.getTrackById(id);
Parameters
id
-
A
DOMString
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
BCD tables only load in the browser