MediaDeviceInfo.deviceId - Web APIs 编辑
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
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