getTrackById

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

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 45
Disabled
Full support 45
Disabled
Disabled From version 45: this feature is behind the enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags.
Edge Full support 12Firefox Full support 33
Disabled
Full support 33
Disabled
Disabled From version 33: this feature is behind the media.track.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support 10Opera Full support 32
Disabled
Full support 32
Disabled
Disabled From version 32: this feature is behind the enable-experimental-web-platform-features preference (needs to be set to enabled).
Safari Full support 6.1WebView Android Full support 45Chrome Android Full support 45
Disabled
Full support 45
Disabled
Disabled From version 45: this feature is behind the enable-experimental-web-platform-features preference (needs to be set to enabled). To change preferences in Chrome, visit chrome://flags.
Edge Mobile Full support YesFirefox Android Full support 33
Disabled
Full support 33
Disabled
Disabled From version 33: this feature is behind the media.track.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 32
Disabled
Full support 32
Disabled
Disabled From version 32: this feature is behind the enable-experimental-web-platform-features preference (needs to be set to enabled).
Safari iOS Full support 7.1Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
User must explicitly enable this feature.
User must explicitly enable this feature.

Document Tags and Contributors

Contributors to this page: sideshowbarker
Last updated by: sideshowbarker,