code: function toOrdinal(number) {
      var num = parseInt(number, 10);
  
      if (!isFinite(num)) {
          throw new TypeError(
              'Not a finite number: ' + number + ' (' + typeof number + ')'
          );
      }
      if (!isSafeNumber(num)) {
          throw new RangeError(
              'Input is not a safe number, it’s either too large or too small.'
          );
      }
      var str = String(num);
      var lastTwoDigits = Math.abs(num % 100);
      var betweenElevenAndThirteen = lastTwoDigits >= 11 && lastTwoDigits <= 13;
      var lastChar = str.charAt(str.length - 1);
      return str + (betweenElevenAndThirteen ? 'th'
              : lastChar === '1' ? 'st'
              : lastChar === '2' ? 'nd'
              : lastChar === '3' ? 'rd'
              : 'th');
  }
docs: Converts an integer into a string with an ordinal postfix.
  If number is decimal, the decimals will be removed.
  @example toOrdinal(12) => '12th'
  @param {number|string} number
  @returns {string}