Service Workers & Progressive Web Apps

What is the purpose of the 'notificationclick' event in PWAs?

self.addEventListener('notificationclick', event => {
  event.notification.close();
  event.waitUntil(
    clients.matchAll({ type: 'window' })
      .then(clientList => {
        if (clientList.length > 0) {
          return clientList[0].focus();
        }
        return clients.openWindow(event.notification.data.url);
      })
  );
});

To display notifications
To handle notification interaction
The 'notificationclick' event handles user interaction with notifications by: 1) Responding to notification clicks, 2) Focusing existing windows or opening new ones, 3) Executing specific actions based on notification data, 4) Providing a seamless user experience when interacting with notifications. This enables meaningful responses to user engagement with your PWA's notifications.
To send push messages
To create notification content

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