The WebSocket.binaryType
property controls the type of binary data being received over the WebSocket connection.
WebSocket.binaryType
Value
A DOMString
:
-
"blob"
-
Use
Blob
objects for binary data. This is the default value. -
"arraybuffer"
-
Use
ArrayBuffer
objects for binary data.
Examples
// 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", function (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
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