The read-only property MediaStreamTrack.id returns a DOMString containing a unique identifier (GUID) for the track; it is generated by the browser.
var id = track.id;
| Specification | Status | Comment |
|---|---|---|
| Media Capture and Streams The definition of 'MediaStreamTrack.id' in that specification. | Editor's Draft | Initial specification. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | No support | (Yes) | ? |
| Feature | Android | Android Webview | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
|---|---|---|---|---|---|---|---|---|
| Basic support | ? | (Yes) | (Yes) | ? | No support | ? | ? | (Yes) |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaStreamTrack/id