Could someone explain me how this code works line to line? Thanks.

Question

var two=5;
var five=8;
var eight=3;
var three=two+eight%five;
var ten=two*three%eight;
alert(ten);

Answer 1

var three=5+3%8;
three=5+3=8;
var ten=5*8%3;
ten=40%3=1
//output is 1

Answer 2

I have put comments in your code to explain:

var two=5;
var five=8;
var eight=3;
var three=two+eight%five;
// var three = 5 + 3 % 8
// you do % first and + after that
// 3 % 8 = 3. 5 + 3 = 8. three = 8
alert (three);
var ten=two*three%eight;
// var ten = 5 * 8 % 3
// 5 * 8 = 40. 40 % 3 = 1
alert(ten);

Answer 3

multiplication is before modulus and addition is behind?