Acest bonfire nu mi s-a părut complicat.

function translate(str) {
// create an array with vowels
// get the first index of a voewl
var vowels = /[aeiou]/;
var firstVowel = str.search(vowels);
var consonants = str.substr(0, firstVowel);
var suffix = consonants + 'ay';

console.log(consonants);

if ( firstVowel > 0 ) {
str = str.substr(firstVowel) + suffix;
} else {
str = str + 'way';
}

// str = str.substr(first) + suffix
return str;
}

translate("consonant");