function translatePigLatin(str) {

  var regex = /[aeiou]/gi;
  // Check if the first character is a vowel
  if (str[0].match(regex)) {
    return str + 'way';
  }
    // Find how many consonants before the firs vowel.
    var vowelIndice = str.indexOf(str.match(regex)[0]);
    // Take the string from the first vowel to the last char
    // then add the consonants that were previously omitted and add the ending.
     return str.substr(vowelIndice) + str.substr(0, vowelIndice) + 'ay';
  }

translatePigLatin("consonant");