Edit in JSFiddle

for (let i = 1; i <= 100; i++) {
    // Finding multiples of 3 and 5
    if (i % 3 === 0 && i % 5 === 0) {
      console.log('FizzBuzz');
    } else if (i % 3 === 0) {
      // Finding multiples of 3
      console.log('Fizz');
    } else if (i % 5 === 0) {
      // Finding multiples of 5
      console.log('Buzz');
    } else {
      console.log(i);
    }
  }