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• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

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.

句法

var deviceID = MediaDeviceInfo.deviceId
					

值

A DOMString .

规范

规范	状态	注释
媒体捕获和流 The definition of 'deviceId' in that specification.	候选推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
deviceId	Chrome 55 注意事项 55 注意事项 For earlier versions, this interface is available through the adapter.js polyfill	Edge 12	Firefox 39	IE 不支持 No	Opera 不支持 No 注意事项 No 注意事项 This property can be used in Opera by using the adapter.js polyfill.	Safari 不支持 No	WebView Android 55 注意事项 55 注意事项 For earlier versions, this interface is available through the adapter.js polyfill	Chrome Android 55 注意事项 55 注意事项 For earlier versions, this interface is available through the adapter.js polyfill	Firefox Android 39	Opera Android 不支持 No 注意事项 No 注意事项 This property can be used in Opera by using the adapter.js polyfill.	Safari iOS 不支持 No	Samsung Internet Android 6.0 注意事项 6.0 注意事项 For earlier versions, this interface is available through the adapter.js polyfill

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. MediaDeviceInfo
2. 特性

   1. deviceId
   2. groupId
   3. kind
   4. label