MessageEvent: source property
Note: This feature is available in Web Workers.
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.
Value
a MessageEventSource
(which can be a WindowProxy,
MessagePort
, or ServiceWorker
object) representing the
message emitter.
Examples
js
myWorker.onmessage = (e) => {
result.textContent = e.data;
console.log("Message received from worker");
console.log(e.source);
};
Specifications
Specification |
---|
HTML Standard # dom-messageevent-source-dev |
Browser compatibility
BCD tables only load in the browser
See also
-
ExtendableMessageEvent
— similar to this interface but used in interfaces that needs to give more flexibility to authors.