The RTCTrackEventInit dictionary's optional streams property provides an array containing a MediaStream object for each of the streams associated with the event's track.


var trackEventInit = {
  receiver: rtpReceiver,
  track: mediaStreamTrack,
  streams: [videoStream],
  transceiver: rtpTransceiver

var streamList = trackEventInit.streams;


An array of MediaStream objects, one for each stream which make up the track.

If streams is not specified, its default value is an empty array.


Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCTrackEventInit.streams' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
streamsChrome Full support 56Edge Full support ≤18Firefox Full support 22IE No support NoOpera Full support 43Safari ? WebView Android Full support 56Chrome Android Full support 56Firefox Android Full support 44Opera Android Full support 43Safari iOS ? Samsung Internet Android Full support 6.0


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