Multiplying array numbers sequentially

Question

The best and the easiest way to multiply array numbers sequentially

I have got an array with some values:

    const arr = [1, 5, 12, 3, 83, 5];

Now I want to get the product of all values from arr. It should works like this: 1 * 5 * 12 * 3 * 83 * 5

I have tried with this code:

    const arr = [1, 5, 12, 3, 83, 5];

    multiply(arr);

    function multiply(arr) {
        for(i = 0; i < arr.length; i++) {
            product = array[i] * array[i];
            console.log(product);
        }
    }

This code above works like this: 1 * 1, 5 * 5, 12 * 12, 3 * 3, 83 * 83, 5 * 5 and that is not result that I need. I think I know why it works like this but I'm not sure how to write code that I need.

So what's the best option for this kind of tasks?

Edit. For non-experienced people looking here in future this is the best option that we've found:

Leo Martin answer:

    const array = [1, 5, 12, 3, 83, 5];

    console.log(multiply(array)); // we log function return value

    function multiply(array) {
      let score = array[0];
      for (i = 1; i < array.length; i++) {
        score = score * array[i];
      }
      return score;
    }

and also the shorter version:

By the way, you could use Array.reduce:

    const array = [1, 5, 12, 3, 83, 5];

    const result = array.reduce((acc, value, index) => {  
      if (index === 0) return value;
      acc = acc * value;

      return acc;
    }, 0);

    console.log(result);

Answer 1

Just move console.log outside for body:

const array = [1, 5, 12, 3, 83, 5];
console.log(multiply(array)); // we log function return value
function multiply(array) {
  let score = array[0];
  for (i = 1; i < array.length; i++) {
    score = score * array[i];
  }
  return score;
}

By the way, you could use Array.reduce:

const array = [1, 5, 12, 3, 83, 5];

const result = array.reduce((acc, value, index) => {
  if (index === 0) return value;
  acc = acc * value;

  return acc;
}, 0);

console.log(result);