ExtendableEvent.constructor

The ExtendableEvent() constructor creates a new ExtendableEvent object.

Syntax

var myExtendableEvent = new ExtendableEvent(type, init);

Parameters

type

The type of the ExtendableEvent, for example install, activate.

init Optional

An options object containing any custom settings that you want to apply to the event object. Currently no possible options exist inside the spec, but this has been defined for forward compatibility across the different derived events.

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• Using Service Workers
• Service workers basic code example
• Is ServiceWorker ready?
• Promise
• Using web workers