MediaStreamTrack: kind property
Baseline Widely available
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The kind read-only property of the MediaStreamTrack interface returns a string 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 disassociated from its source.
Value
The possible values are a string with one of the following values:
"audio": the track is an audio track."video": the track is a video track.
Specifications
| Specification |
|---|
| Media Capture and Streams # dom-mediastreamtrack-kind |