The VideoTrackList
method getTrackById()
returns the first VideoTrack
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 = VideoTrackList.getTrackById(id);
Paramters
id
- A
DOMString
indicating the ID of the track to locate within the track list.
Return value
A VideoTrack
object indicating the first track found within the VideoTrackList
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 | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'VideoTrackList.getTrackById()' in that specification. |
Living Standard |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
getTrackById | Chrome
Full support
45
| Edge
Full support
79
| Firefox
Full support
33
| IE Full support 10 | Opera
Full support
32
| Safari Full support 6.1 | WebView Android Full support 45 | Chrome Android
Full support
45
| Firefox Android
Full support
33
| Opera Android
Full support
32
| Safari iOS Full support 7 | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- User must explicitly enable this feature.
- User must explicitly enable this feature.