++x and x++ in js

Question

Without a var to point to x++ and ++x, what is the difference between them?

Answer 1

++x; // prefix
x++; //postfix

Prefix increments the value, and then proceeds wirh the expression.
Postfix evaluates the expression and then performs the incrementing.

Prefix example :
int x = 3;
int y = ++x;
// x=4, y=4

Postfix example :
int x = 3;
int y = x++;
// x=4, y=3

Answer 2

Thank you for your explanation. This issue is rather confusing. Now at least i understand better