The deviceId readonly property of the MediaDeviceInfo interface returns a string that is an identifier for the represented device and is persisted across sessions.
It is un-guessable by other applications, and unique to the origin of the calling application. It is reset when the user clears cookies. For private browsing, a different identifier is used that is not persisted across sessions.
A string.
| Specification |
|---|
| Media Capture and Streams # dom-mediadeviceinfo-deviceid |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
deviceId |
47 | 14 | 39 | No | 34 | 11 | 47 | 47 | 39 | 34 | 11 | 5.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/MediaDeviceInfo/deviceId