Notification.close() - Web APIs 编辑

Note:

Secure context

This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The close() method of the Notification interface is used to close/remove a previously displayed notification.

Note: 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).

Syntax

Notification.close();

Parameters

None.

Returns

Void.

Examples

In the following snippet, we have a simple function that when called creates an options object and then a new notification. At the end of the function, it also calls close() inside a 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();
    }
  });
}

Specifications

Browser compatibility

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See also

• Using the Notifications API