54 => " \t\t \t\t \n", -54 => "\t\t\t \t\t \n"

to-whitespace.js

var toWhitespace = function (n) {
  var result = '';
  var table = {
    0: ' ',
    1: '\t'
  };
 
  result += (n < 0) ? table[1] : table[0];
 
  result += Math.abs(n).toString(2).replace(/[01]/g, function (m) {
    return table[m];
  });
 
  result += '\n';
 
  return result;
};