factorial in javascript using for loop code example

Example 1: javascript factorial

function factorial(n) {
  if (n < 0) return;
  if (n < 2) return 1;
  return n * factorial(n - 1);
}

Example 2: factorial program in javascript

function fact(N){
  if(N <= 1){
  	return "1";
  }
  else
  {
    return N * fact(N-1);  
  }
}

fact(5);

Example 3: factorial function javascript

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

Example 4: factorial in javascript using for loop

function factorialize(num) {
  if (num < 0) 
        return -1;
  else if (num == 0) 
      return 1;
  else {
      return (num * factorialize(num - 1));
  }
}
factorialize(5);