Array <-> Buffer

array2buffer.js

// From Buffer to ArrayBuffer:

utils.toArrayBuffer = function toArrayBuffer(buffer) {
  var ab = new ArrayBuffer(buffer.length);
  var view = new Uint8Array(ab);
  for (var i = 0; i < buffer.length; ++i) {
    view[i] = buffer[i];
  }
  return ab;
}

// From ArrayBuffer to Buffer:

utils.toBuffer = function(ab) {
  var buffer = new Buffer(ab.byteLength);
  var view = new Uint8Array(ab);
  for (var i = 0; i < buffer.length; ++i) {
    buffer[i] = view[i];
  }
  return buffer;
};