The source
read-only property of the MessageEvent
interface is a MessageEventSource
(which can be a WindowProxy, MessagePort
, or ServiceWorker
object) representing the message emitter.
The source
read-only property of the MessageEvent
interface is a MessageEventSource
(which can be a WindowProxy, MessagePort
, or ServiceWorker
object) representing the message emitter.
a MessageEventSource
(which can be a WindowProxy, MessagePort
, or ServiceWorker
object) representing the message emitter.
js
myWorker.onmessage = (e) => { result.textContent = e.data; console.log("Message received from worker"); console.log(e.source); };
Specification |
---|
HTML Standard # dom-messageevent-source-dev |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
source |
2 | 12 | 3 | No | ≤12.1 | 4 | ≤37 | 18 | 4 | ≤12.1 | 3.2 | 1.0 |
ExtendableMessageEvent
— similar to this interface but used in interfaces that needs to give more flexibility to authors.
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https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/source