The WebSocket.binaryType
property controls the type of binary data being received over the WebSocket connection.
The WebSocket.binaryType
property controls the type of binary data being received over the WebSocket connection.
A string:
"blob"
Use Blob
objects for binary data. This is the default value.
"arraybuffer"
Use ArrayBuffer
objects for binary data.
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); } });
Specification |
---|
WebSockets Standard # ref-for-dom-websocket-binarytype① |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
binaryType |
15 | 12 | 11 | 10 | 12.1 | 6 | 4.4 | 18 | 14 | 12.1 | 6 | 1.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/binaryType