could anybody help to explain the following code result? thanks

Question

What is the output of this code?
function x(y) {
y++;
y=y+2;
++y;
y=y%3;
return y;
}
document.write(x(3));

Answer 1

Result is 1.

Answer 2

replace y in the function with 3 and follow the code flow.
first 3 is incremented to 4 then 2 is added to it then it's incremented to 7 .
7%3 = 1 . because % operator returns the remainder of 7%3.