ExtendableEvent()
The ExtendableEvent() constructor creates a new ExtendableEvent object.
Syntax
var extendableEvent = new ExtendableEvent(type, init);
Parameters
type-
The type of the ExtendableEvent, for example
install,activate. -
initOptional -
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
| Specification |
|---|
| Service Workers 1 # dom-extendableevent-extendableevent |
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 | |
ExtendableEvent |
40 |
17 |
44
Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.
|
No |
24 |
11.1 |
40 |
40 |
44 |
24 |
11.3 |
4.0 |
See also
- Using Service Workers
- Service workers basic code example
- Is ServiceWorker ready?
Promise- Using web workers
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https://developer.mozilla.org/en-US/docs/Web/API/ExtendableEvent/ExtendableEvent