Week 4 Task 2

by Ken Wai Ooi

HTML

<script>
var n = 4
factorial = function(n)
{
 if(n < 0)
 {
 return("Number have to be positive");
 }
 if(n===0)
 {
  return 1;
 }

return n * factorial(n-1);
	
}
document.write(factorial(n));
</script>