The '&&' operator is the logical AND operator, which can be used to combine boolean operands.
Example:
var bool a = true;
var bool b = true;
var bool c;
c = a && b; // c = true
In order to mask an integer variable with an integer mask, you can use the bitwise AND operator '&'.
Example:
var uint32 a = 0xFF003AC0;
var uint32 b = 0xAB15FF70;
var uint32 c;
c = a & b; // c = 0xAB003A40