WebSocket: binaryType property
The WebSocket.binaryType
property controls the type of
binary data being received over the WebSocket connection.
Value
A string:
"blob"
-
Use
Blob
objects for binary data. This is the default value. "arraybuffer"
-
Use
ArrayBuffer
objects for binary data.
Examples
js
// Create WebSocket connection.
const socket = new WebSocket("ws://localhost:8080");
// Change binary type from "blob" to "arraybuffer"
socket.binaryType = "arraybuffer";
// Listen for messages
socket.addEventListener("message", (event) => {
if (event.data instanceof ArrayBuffer) {
// binary frame
const view = new DataView(event.data);
console.log(view.getInt32(0));
} else {
// text frame
console.log(event.data);
}
});
Specifications
Specification |
---|
WebSockets Standard # ref-for-dom-websocket-binarytype① |
Browser compatibility
BCD tables only load in the browser