Vowel Count

/***************************************************************************************
*                                                                                      *
*                  CODERBYTE BEGINNER CHALLENGE                                        *
*                                                                                      *
*  Vowel Count                                                                         *
*  Using the JavaScript language, have the function VowelCount(str) take the str       *
*  string parameter being passed and return the number of vowels the string contains   *
*  (ie. "All cows eat grass" would return 5). Do not count y as a vowel for this       *
*  challenge.                                                                          *
*                                                                                      *
*  SOLUTION                                                                            *
*  I will be using two for loops that will be nested. I will be searching thru all     *
*  entries in my vowel array in the outter loop and searching through each letter      *
*  in the string in the inner loop. I will be comparing each vowel to every letter     *
*  in the string. If it matches then I will be incrememting by total by 1.
*                                                                                      *
*  Steps for solution                                                                  *
*    1) create my vowel arrray.                                                        *
*    2) Initialize tot to zero.                                                        *
*    3) Loop through each vowel and compare to each letter in string                   *
*    4) If match then increment tot by 1                                               *
*    5) Return tot as answer                                                           *
*                                                                                      *
***************************************************************************************/
function VowelCount(str) { 

  var vowelArr = ["a","e","i","o","u"];
  var tot = 0;

  for (var i = 0; i < vowelArr.length; i++) {
    for (var j = 0; j < str.length; j++) {
        if (str[j] === vowelArr[i]) {
            tot++;
        }
    }
  }
  return tot;
         
}