安全上下文
此特征只可用于 安全上下文 (HTTPS)，在某些或所有 支持浏览器 .

close() 方法在 Notification interface is used to close/remove a previously displayed notification.

注意： This API shouldn't be used just to have the notification removed from the screen after a fixed delay since this method will also remove the notification from any notification tray, preventing users from interacting with it after it was initially shown. A valid use for this API would be to remove a notification that is no longer relevant (e.g. the user already read the notification on the webpage in the case of a messaging app or the following song is already playing in a music app).

句法

Notification.close();
					

参数

None.

返回

Void.

范例

In the following snippet, we have a simple function that when called creates an 选项 object and then a new notification. At the end of the function, it also calls close() 在 addEventListener() function to remove the notification when the relevant content has been read on the webpage.

function spawnNotification(theBody, theIcon, theTitle) {
  var options = {
    body: theBody,
    icon: theIcon
  };
  var n = new Notification(theTitle,options);
  document.addEventListener('visibilitychange', function() {
    if (document.visibilityState === 'visible') {
      // The tab has become visible so clear the now-stale Notification.
      n.close();
    }
  });
}
					

规范

规范	状态	注释
Notifications API	实时标准	Living standard

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
close	Chrome Yes	Edge 14	Firefox Yes	IE No	Opera Yes	Safari Yes	WebView Android No	Chrome Android Yes	Firefox Android Yes	Opera Android Yes	Safari iOS No	Samsung Internet Android Yes

图例

完整支持

完整支持

不支持

不支持

另请参阅

• Using the Notifications API

元数据

• 最后修改： Jul 23, 2020