Does modulus behave differently in while loop?

Question

I just don't understand why the answer is 36 and not 6...

var x = 326;

var prod = 1;

while (x>0) {
prod *= x%10;
x = (x-x%10)/10;
}

console.log(prod);

Answer 1

The loop will be true until x will be greater than 0

x = 326

(326 - 326 % 10) / 10 =
(326 - 6) / 10 =
320 / 10 = 32

... then

(32 - 32 % 10) / 10 =
(32 - 2) / 10 =
30 / 10 = 3

... finally

(3 - 3 % 10) / 10 =
(3 - 3) / 10 =
0 / 10 = loop ends!

... yeah, results are:

326
32
3

Variable prod will be equal to all of the numbers in 326 (3, 2, 6).

prod = 1

prod *= 3
prod *= 2
prod *= 6

1 * 3 = 3
3 * 2 = 6
6 * 6 = 36

... this last step is all you have to remember in similar Javascript questions like this one!