message (WebSocket)

A message event informs the target, a WebSocket, RTCDataChannel, EventSource, or a BroadcastChannel object, that a message has been received.

If the target is a RTCDataChannel, an event handler for this event can be added via the RTCDataChannel.onmessage property.

If the target is a BroadcastChannel, an event handler for this event can be added via the BroadcastChannel.onmessage property.

General info

Interface

MessageEvent or RTCDataChannelEvent

Bubbles

No

Cancelable

No

Target

RTCDataChannel, WebSocket, EventSource, BroadcastChannel

Default Action

None

Properties

A MessageEvent being an Event, this event also implements these properties.

data Read only

A DOMString containing the message received.

Methods

A MessageEvent being an Event, this event also implements its methods.

Related Events

• open, close.

Specifications

Browser compatibility

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

See also

• WebRTC
• BroadcastChannel API
• WebSockets