The onmessage property of the EventSource interface is an EventHandler called when a message event is received, that is when a message is coming from the source.
Event objects of onmessage event handers are of type MessageEvent.
Syntax
eventSource.onmessage = function
Examples
evtSource.onmessage = function(e) {
var newElement = document.createElement("li");
newElement.textContent = "message: " + e.data;
eventList.appendChild(newElement);
}
Note: You can find a full example on GitHub — see Simple SSE demo using PHP.
Specifications
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'onmessage' in that specification. |
Living Standard | Initial definition |
Browser compatibility
[1] But not service workers as yet.
See also
Document Tags and Contributors
Tags:
Contributors to this page:
chrisdavidmills
Last updated by:
chrisdavidmills,