extended by CanvasCaptureMediaStream, LocalMediaStream
Available on js
DOMString containing 36 characters denoting a universally unique identifier (UUID) for the object.
Returns a list of the
MediaStreamTrack objects stored in the MediaStream
object that have their kind attribute set to "audio"`. The order is not defined, and may not only vary from one browser to another, but also from one call to another.
Returns the track whose ID corresponds to the one given in parameters, trackid
. If no parameter is given, or if no track with that ID does exist, it returns null. If several tracks have the same ID, it returns the first one.