BackgroundFetchEvent: registration property

{{APIRef("Background Fetch API")}}{{SeeCompatTable}}{{AvailableInWorkers("service")}}

The registration read-only property of the {{domxref("BackgroundFetchEvent")}} interface returns a {{domxref("BackgroundFetchRegistration")}} object.

Value

A {{domxref("BackgroundFetchRegistration")}}.

Examples

In this example, if the user clicks on the user interface displaying the download progress, this fires the {{domxref("ServiceWorkerGlobalScope/backgroundfetchclick_event", "backgroundfetchclick")}} event. The current {{domxref("BackgroundFetchRegistration")}} is returned by calling event.registration.

addEventListener("backgroundfetchclick", (event) => {
  console.log(event.registration);
});

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}