Can you explain how this Factorial function works?

Question

I understand that \"a\" solution is:

function Factorial(number)
{
    if(number == 0 || number == 1){
        return 1         


        

Answer 1

It is called recursion.

This function is called like this

var result = Factorial(3); in Factorial function

First time return 3*Factorial(2);

Now here return statement doesnt get executed insted Factorial is called again.. so second time return 2*Factorial(1);

again in Factorial(1) Third time return 1;

So go to second return 2*1;

Next to first return 3*(2*1);

Finally var result = 3*2*1 = 6.