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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

onoffline 特性为 WorkerGlobalScope interface represents an EventHandler to be called when the offline event occurs and bubbles through the Worker .

句法

self.onoffline = function() { ... };
					

范例

The following code snippet shows an onoffline handler set inside a worker:

self.onoffline = function() {
  console.log('Your worker is now offline');
}
					

规范

规范	状态	注释
HTML 实时标准 The definition of 'WorkerGlobalScope.onoffline' in that specification.	实时标准

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
onoffline	Chrome 4	Edge ≤79	Firefox 29	IE ?	Opera ?	Safari ?	WebView Android Yes	Chrome Android 40	Firefox Android 29	Opera Android ?	Safari iOS ?	Samsung Internet Android 4.0

图例

完整支持

完整支持

兼容性未知 ?

兼容性未知

另请参阅

WorkerGlobalScope interface it belongs to.

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. Web 工作者 API
2. WorkerGlobalScope
3. 特性

   1. caches
   2. console
   3. crossOriginIsolated
   4. indexedDB
   5. isSecureContext
   6. location
   7. navigator
   8. onclose
   9. onerror
   10. onlanguagechange
   11. onoffline
   12. ononline
   13. origin
   14. 性能
   15. self
4. 方法

   1. atob()
   2. btoa()
   3. clearInterval()
   4. clearTimeout()
   5. close()
   6. createImageBitmap()
   7. dump()
   8. fetch()
   9. importScripts()
   10. queueMicrotask()
   11. setInterval()
   12. setTimeout()
5. 事件

   1. languagechange
6. 继承：

   1. EventTarget
7. Web 工作者 API 相关页面

   1. AbstractWorker
   2. ChromeWorker
   3. DedicatedWorkerGlobalScope
   4. ServiceWorker
   5. SharedWorker
   6. SharedWorkerGlobalScope
   7. Worker
   8. WorkerLocation
   9. WorkerNavigator