MediaStreamTrackEvent()

The MediaStreamTrackEvent() constructor returns a newly created MediaStreamTrackEvent object, which represents an event announcing that a MediaStreamTrack has been added to or removed from a MediaStream.

Syntax

var trackEvent = new MediaStreamTrackEvent(type, {track: aMediaStreamTrack});

The MediaStreamTrackEvent() constructor also inherits arguments from Event().

type: A DOMString representing the name of the type of the MediaStreamTrackEvent. It is case-sensitive and can be "addtrack" or "removetrack".
track: A MediaStreamTrack object representing the track which was added to or removed from the stream.

A new MediaStreamTrackEvent, initialized based on the provided options.

Specification
Media Capture and Streams # dom-mediastreamtrackevent-constructor

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`MediaStreamTrackEvent`	55	12	50	No	42	Yes	55	55	50	42	Yes	6.0