Refactoring JS function and Removing conditional out of loop

As title explains im trying to understand the best way to refactor my function and also remove my if statement from the loop? Any guidance would be appreciated. As I have an idea that me else condition is useless.

function quantitySum(array) {
  let sum = 0;
  for (let i = 0; i < array[0].length; i++) {
    if (array[0].length > 0) {
      sum += parseFloat(array[0][i].f0_);
    } else {
      sum === 0;
    }
  }

  return sum;
}

>Solution :

You don’t need the if/else condition at all as if there are no items in array[0], there will be no iteration.

    function quantitySum(array) {
      let sum = 0;
      for (let i = 0; i < array[0].length; i++) {
         sum += parseFloat(array[0][i].f0_);
      }
      return sum;
    }