MessageEvent: lastEventId property
Note: This feature is available in Web Workers.
The lastEventId read-only property of the
MessageEvent interface is a string representing a
unique ID for the event.
Value
A string representing the ID.
Examples
js
myWorker.onmessage = (e) => {
result.textContent = e.data;
console.log("Message received from worker");
console.log(e.lastEventId);
};
Specifications
Browser compatibility
See also
ExtendableMessageEvent— similar to this interface but used in interfaces that needs to give more flexibility to authors.