在此页

• 方法
• 特性
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Client interface represents an executable context such as a Worker ，或 SharedWorker . Window clients are represented by the more-specific WindowClient . You can get Client / WindowClient objects from methods such as Clients.matchAll() and Clients.get() .

方法

Client.postMessage()

Sends a message to the client.

特性

Client.id 只读

The universally unique identifier of the client as a string.

Client.type 只读

The client's type as a string. It can be " window" , " worker" , or " sharedworker" .

Client.url 只读

The URL of the client as a string.

规范

规范	状态	注释
服务工作者 The definition of 'Client' in that specification.	工作草案	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
Client	Chrome 40	Edge 17	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 27	Safari No	WebView Android 40	Chrome Android 40	Firefox Android 44	Opera Android 27	Safari iOS No	Samsung Internet Android 4.0
frameType	Chrome 43	Edge 17	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 30	Safari No	WebView Android 43	Chrome Android 43	Firefox Android 44	Opera Android 30	Safari iOS No	Samsung Internet Android 4.0
id	Chrome 40	Edge ≤79	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 27	Safari No	WebView Android 40	Chrome Android 40	Firefox Android 44	Opera Android 27	Safari iOS No	Samsung Internet Android 4.0
postMessage	Chrome 45	Edge ≤79	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 32	Safari No	WebView Android 45	Chrome Android 45	Firefox Android 44	Opera Android 32	Safari iOS No	Samsung Internet Android 5.0
type	Chrome 60	Edge ≤79	Firefox 54	IE No	Opera 47	Safari No	WebView Android 60	Chrome Android 60	Firefox Android 54	Opera Android 44	Safari iOS No	Samsung Internet Android 8.0
url	Chrome 40	Edge ≤79	Firefox 44 44 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 27	Safari No	WebView Android 40	Chrome Android 40	Firefox Android 44	Opera Android 27	Safari iOS No	Samsung Internet Android 4.0

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

见实现注意事项。

另请参阅

• 使用服务工作者
• ServiceWorker 就绪了吗？
• Promises

元数据

• 最后修改： Aug 14, 2019

相关话题

1. 服务工作者 API
2. Client
3. 特性

   1. frameType
   2. id
   3. type
   4. url
4. 方法

   1. postMessage()
5. Related pages for Service Workers API

   1. 缓存
   2. CacheStorage
   3. Clients
   4. ExtendableEvent
   5. FetchEvent
   6. InstallEvent
   7. Navigator.serviceWorker
   8. NotificationEvent
   9. PeriodicSyncEvent
   10. PeriodicSyncManager
   11. PeriodicSyncRegistration
   12. ServiceWorker
   13. ServiceWorkerContainer
   14. ServiceWorkerGlobalScope
   15. ServiceWorkerRegistration
   16. SyncEvent
   17. SyncManager
   18. SyncRegistration
   19. WindowClient