Solution Review: The Factorial of a Number (Loops)

let fact = (n: int) => {
  /* Check if n is 0 or 1 */
  if (n == 0 || n == 1) {
    1;
  }
  else {
    let i = ref(n);
    let prod = ref(1); /* Give the product a default value of 1 */
    while (i^ > 1) { 
      prod := prod^ * i^; /* Multiple prod with i in each iteration */
      i := i^ - 1; /* Decrement i until it reaches 1 */
    };
    prod^;
  };
};
Js.log(fact(3));