The silent read-only property of the Notification interface specifies whether the notification should be silent, i.e., no sounds or vibrations should be issued, regardless of the device settings. This is specified in the silent option of the Notification() constructor.

A boolean value. false is the default; true makes the notification silent.

The following snippet is intended to fire a silent notification; a simple options object is created, and then the notification is fired using the Notification() constructor.

const options = {
  body: "Your code submission has received 3 new review comments.",
  silent: true,
};

const n = new Notification("New review activity", options);

console.log(n.silent); // "true"

• Using the Notifications API