javascript factorial built-in method code example

Example 1: factorial javascript function

function factorialize(num) {
  if(num < 2) return 1;
  return num *= factorialize(num - 1);
}

Example 2: factorial function javascript

function factorial(n) {
        if (n > 1) {
            return n * factorial(n - 1);
        }
        return 1;
    }