Turn a phrase into pig latin

pigLatin.js

let phrase = process.argv.slice(2);

const translateToPigLatin = function(phrase) {
  let pigLatinTranslation = '';
  for (let i = 0; i < phrase.length; i++) {
    pigLatinTranslation += " " + phrase[i].slice(1) + phrase[i][0] + "ay";
  }
  return pigLatinTranslation.substring(1);
};

console.log(translateToPigLatin(phrase));