/**
 * Has Vowels
 * 
 * hasVowel tests if the String calling the function has a vowels
 * 
 * @param {void}
 * @return {Boolean} returns true or false indicating if the string
 * has a vowel or not
 */
String.prototype.hasVowels = function() {
    var inputString = this;
    return /[aeiou]/gi.test(inputString);
};
@@ -310,8 +310,67 @@
 ing);%0A%7D;
+%0A%0AString.prototype.toUpper = function() %7B%0A    return %22%22;%0A%7D;

add toUpper function to pass string return type test