/* arithmetic operators
+        // addition
-        // substraction
*        // multiplication
/        // division
%        // remainder (NOT MODULO) -> works with positive numbers only!

// incrementing / decrementing
x++;  // first action, then increase by 1
++x;  // increase by 1, then action
x--;  // first action, then decrease by 1
--x;  // decrease by 1, then action

// augmented operations (short assignment)
var y += 10    // y = y+10
var y -= 10    // y = y-10
var y *= 10    // y = y*10
var y /= 10    // y = y/10