how to convert arraybuffer to string

Question

I have written a simple TCP server on node.js to send some data to a Chrome app. In the chrome app, when I get the data, I convert that to string using below function, I get

Answer 1

The modern (Chrome 38+) way to do this would be, assuming the encoding is UTF-8:

var decoder = new TextDecoder("utf-8");

function ab2str(buf) {
    return decoder.decode(new Uint8Array(buf));
}

This uses the TextDecoder API; see documentation for more options, such as a different encoding.

See also: Easier ArrayBuffer<->String conversion with the Encoding API @ Google Developers