Experimental
This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The deviceId
readonly property
of the MediaDeviceInfo
interface returns a DOMString
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.
Syntax
var deviceID = MediaDeviceInfo.deviceId
Value
A DOMString
.
Specifications
Specification | Status | Comment |
---|---|---|
Media Capture and Streams The definition of 'deviceId' in that specification. |
Candidate Recommendation | Initial definition. |
Browser compatibility
BCD tables only load in the browser