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The read-only property MediaStreamTrack.kind returns a DOMString set to "audio" if the track is an audio track and to "video", if it is a video track. It doesn't change if the track is deassociated from its source.

Syntax

 var type = track.kind;

Value

The possible values are a DOMString with on of the following values:

  • "audio": the track is an audio track.
  • "video": the track is a video track.

Example

 

Specifications

Specification Status Comment
Media Capture and Streams
The definition of 'MediaStreamTrack.kind' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
kindChrome Full support YesEdge Full support 12Firefox Full support YesIE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support

See also

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