whale language

let input='turpentine and turtles';
const vowels = ['a','e','i','o','u'];
let resultArray = [];
let resultString = [];
for(let i = 0; i<input.length; i++)
{
  for(let j = 0; j<vowels.length;j++)
  {
    if(input[i]===vowels[j])
    {
      if(input[i]==='e' || input[i] ==='u')
      {
        resultArray.push(input[i]);
        resultArray.push(input[i]);
      }
      else resultArray.push(input[i]);

    }
  }
  //console.log(i);
}

for(let i = 0; i<resultArray.length;i++)
{
  console.log(resultArray[i]);
}
resultString = resultArray;
console.log(resultString.join("").toUpperCase());