JadenCase.js

function jadenCase (input) {
  // Split the input into an array of individual words
  var words = input.split(' ');

  for (var i = 0; i < words.length; i++) {
      // For each word take the first letter, captialize it, take the rest of the word, lowercase it,
      // then re-assign the modified word to the current position in the array
      words[i] = words[i].charAt(0).toUpperCase() + words[i].substr(1).toLowerCase();
  }
  // Join the array of words back together into a string separated by spaces
  return words.join(' ');
}