javascript bitwise not operator

bitwise-not.js

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Bitwise_Operators
function createBinaryString (nMask) {
  // nMask must be between -2147483648 and 2147483647
  for (var nFlag = 0, nShifted = nMask, sMask = ''; nFlag < 32;
       nFlag++, sMask += String(nShifted >>> 31), nShifted <<= 1);
  return sMask;
}

[-2, -1, 0, 1, 2].forEach(number => {
  console.log(number + ' \t\t\t\t\t==>\t ' + ~number + ' \n' +
    createBinaryString(number) + ' \t--->\t ' + createBinaryString(~number)
    + '\n' + '-'.repeat(80));
});