scoreWords.js

scoreWords.js

function scoreWords(sentence) {
  sentence = sentence.split(' ');
  let amountOfLetters = 0,
      currentCounter = 0,
      endCounter = 0,
      index;

  sentence.forEach((x, i) => {
    x.split('').forEach(y => {
      currentCounter++
    });

    if (currentCounter > endCounter) {
      endCounter = currentCounter;
      index = i;
    }
  });

  console.log(index);
}

scoreWords('Hello, I am Alex, and I am from Ukraine'); // 8 index - longest item
scoreWords('1234, 123456, 12345678912345 1234567890'); // 3 index - longest item