getRegistration() 方法在 ServiceWorkerContainer interface gets a ServiceWorkerRegistration object whose scope URL matches the provided document URL.  The method returns a Promise 解析为 ServiceWorkerRegistration or undefined .

句法

serviceWorkerContainer.getRegistration(scope).then(function(serviceWorkerRegistration) { ... });
					

参数

scope 可选

A unique identifier for a service worker registration — the scope URL of the registration object you want to return. This is usually a relative URL.

返回值

A Promise 解析为 ServiceWorkerRegistration object or undefined .

范例

navigator.serviceWorker.getRegistration('/app').then(function(registration) {
  if(registration){
    document.querySelector('#status').textContent = 'ServiceWorkerRegistration found.';
  }
});
					

规范

规范 状态 注释
服务工作者
The definition of 'ServiceWorkerContainer: getRegistration' 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
getRegistration Chrome 40 Edge 17
17
16 Disabled
Disabled From version 16: this feature is behind the Enable service workers preference.
Firefox 44 注意事项
44 注意事项
Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.
IE 不支持 No Opera 27 Safari 11.1 WebView Android 40 Chrome Android 40 Firefox Android 44 Opera Android 27 Safari iOS 11.3 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。

用户必须明确启用此特征。

用户必须明确启用此特征。

元数据

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