MediaStreamTrackEvent: MediaStreamTrackEvent() constructor

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.

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

Syntax

new MediaStreamTrackEvent(type, options)

A string with the name of the event. It is case-sensitive and browsers set it to addtrack or removetrack.

An object that, in addition of the properties defined in Event(), can have the following properties:

track: A MediaStreamTrack object representing the track which was added to or removed from the stream.

A new MediaStreamTrackEvent object, initialized based on the provided options.

Specification
Media Capture and Streams # dom-mediastreamtrackevent-constructor

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`MediaStreamTrackEvent()` constructor	Chrome – Full support Chrome 55 (Release date: 2016-12-01) footnote Full support	Edge – Full support Edge 12 (Release date: 2015-07-29) footnote Full support	Firefox – Full support Firefox 50 (Release date: 2016-11-15) footnote Full support	Opera – Full support Opera 42 (Release date: 2016-12-13) footnote Full support	Safari – Full support Safari 11 (Release date: 2017-09-19) footnote Full support	Chrome Android – Full support Chrome Android 55 (Release date: 2016-12-06) footnote Full support	Firefox for Android – Full support Firefox for Android 50 (Release date: 2016-11-15) footnote Full support	Opera Android – Full support Opera Android 42 (Release date: 2017-01-21) footnote Full support	Safari on iOS – Full support Safari on iOS 11 (Release date: 2017-09-19) footnote Full support	Samsung Internet – Full support Samsung Internet 6 (Release date: 2017-08-23) footnote Full support	WebView Android – Full support WebView Android 55 (Release date: 2016-12-06) footnote Full support	WebView on iOS – Full support WebView on iOS 11 (Release date: 2017-09-19) footnote Full support

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