A message event informs the target, a WebSocket, RTCDataConnection or a BroadcastChannel object, that a message has been received.
If the target is a RTCDataConnection, an event handler for this event can be added via the RTCDataConnection.onmessage property.
If the target is a BroadcastChannel, an event handler for this event can be added via the BroadcastChannel.onmessage property.
MessageEventRTCDataChannelEvent, WebSocket, BroadcastChannel
A MessageEvent being an Event, this event also implements these properties.
data Read only
DOMString containing the message received.A MessageEvent being an Event, this event also implements these properties.
| Specification | Status | Comment |
|---|---|---|
| WebRTC 1.0: Real-time Communication Between Browsers The definition of 'message on RTCDataChannel' in that specification. | Working Draft | Adds RTCDataChannel as an EventTarget and defines when this event is sent. |
| HTML Living Standard The definition of 'message on BroadcastChannel' in that specification. | Living Standard | Adds BroadcastChannel as an EventTarget and defines when this event is sent. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | No support | (Yes) | ? |
on BroadcastChannel
| No support | No support | 38 (38) | No support | No support | No support |
| Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | (Yes) | ? | No support | ? | ? |
on BroadcastChannel
| No support | No support | No support | 38.0 (38) | No support | No support | No support |
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https://developer.mozilla.org/en-US/docs/Web/Events/message