Palindrome Module

gistfile1.txt

// [declare namespace]
var FourLife = FourLife || {};

// [declare module]
FourLife.PalindromeChallenge = (function() {
  // [strict mode]
  'use strict';

  // [private variable(s)]
  var _splitStr = [],
      _reversedStr = '',
      _status = false,
      _regex = /[\W+_]/g;

  // [private function(s)]
  var _palindromeCheck = function(string) {
    try {
      for (var i = 0; i < string.length; i++) {
        _splitStr = string.split('');
        _reversedStr = _splitStr.reverse().join('');
      }

      _reversedStr = _reversedStr.replace(_regex, '').toLowerCase();
      string = string.replace(_regex, '').toLowerCase();

      _status = _reversedStr === string ? true : false;
      _status = _status ? 'Yes' : 'No';
    } catch (error) {
      if (string === undefined || error instanceof TypeError) {
        _status = 'You must provide a string.';
      }
    } finally {
      return _status;
    }
  };
  
  // [public method(s)]
  return {
    isPalindrome: _palindromeCheck
  };
})();