function Uint8ArrayToString(fileData){
  var dataString = "";
  for (var i = 0; i < fileData.length; i++) {
    dataString += String.fromCharCode(fileData[i]);
  }
 
  return dataString
}

function stringToUint8Array(str){
  var arr = [];
  for (var i = 0, j = str.length; i < j; ++i) {
    arr.push(str.charCodeAt(i));
  }
 
  var tmpUint8Array = new Uint8Array(arr);
  return tmpUint8Array
}
 

function intTobytes2(n) {
  var bytes = [];
 
  for (var i = 0; i < 2; i++) {
    bytes[i] = n >> (8 - i * 8);
 
  }
  return bytes;
}