在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

注意 : This feature was mentioned as an idea in the SW explainer at some point, but as yet has not been implemented anywhere.

periodicSync 只读特性在 ServiceWorkerRegistration interface returns a reference to the PeriodicSyncManager interface, which manages periodic background synchronization processes.

句法

var periodicSyncManager = serviceWorkerRegistration.periodicSync;
					

值

A PeriodicSyncManager 对象。

范例

// TBD
					

规范

Currently not part of any specification.

浏览器兼容性

The compatibility table in 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
periodicSync 非标	Chrome 80	Edge 80	Firefox No	IE No	Opera No	Safari No	WebView Android 80	Chrome Android 80	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android No

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。

非标。预期跨浏览器支持较差。

非标。预期跨浏览器支持较差。

元数据

• 最后修改： Apr 15, 2020

相关话题

1. 服务工作者 API
2. ServiceWorkerRegistration
3. 特性

   1. active
   2. installing
   3. navigationPreload
   4. onupdatefound
   5. periodicSync
   6. pushManager
   7. scope
   8. sync
   9. waiting
4. 方法

   1. getNotifications()
   2. showNotification()
   3. unregister()
   4. update()
5. 继承：

   1. EventTarget
6. Related pages for Service Workers API

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