I am trying to convert an ArrayBuffer to an int using JavaScript. My app uses WebSocket and on the Sender side I have an integer between 0 and 4. I convert this ArraySegment in C#. I send this via web sockets to my JavaScript client which receives it as an ArrayBuffer.
The ArrayBuffer now holds the value of 0 or 1 or 2 or 3. How can I 'read' that value?
Use DataView:
var buffer = new ArrayBuffer(16);
var dv = new DataView(buffer, 0);
dv.setInt16(1, 42);
dv.getInt16(1); //42
setInt16 or getInt16 relatively to DataView.getInt8(0) instead getInt16(0)?var i = new Uint8Array(buf)[0];
Then i is what you need. If you need subarray():
ArrayBuffer.prototype.subarray = function (a, b) {
var u = new Uint8Array(this);
return new Uint8Array(u.subarray(a, b)).buffer;;
};
and
var i = new Uint8Array(buf.subarray(0,1))[0];
