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NotificationEvent: action property

Returns the string ID of the notification button the user clicked. This value returns an empty string if the user clicked the notification somewhere other than an action button, or the notification does not have a button. The notification id is set during the creation of the Notification via the actions array attribute and can't be modified unless the notification is replaced.

Value

A string.

Examples

self.registration.showNotification("New articles available", {
  actions: [{ action: "get", title: "Get now." }],
});

self.addEventListener(
  "notificationclick",
  (event) => {
    event.notification.close();
    if (event.action === "get") {
      synchronizeReader();
    } else {
      clients.openWindow("/reader");
    }
  },
  false,
);

Specifications

Specification
Notifications API Standard # dom-notification-actions

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`action`	48	17	44	No	No	No	No	48	44	No	No	5.0

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https://developer.mozilla.org/en-US/docs/Web/API/NotificationEvent/action