xor is a dangerous default function to use when hashing. It is better than and and or, but that doesn’t say much. xor is symmetric, so the order of the elements is lost. So “bad” will hash combine the same as “dab”. xor maps pairwise identical values to zero, and you should avoid mapping “common” … Read more
JavaScript traces its ancestry back to C, and C does not have a logical XOR operator. Mainly because it’s not useful. Bitwise XOR is extremely useful, but in all my years of programming I have never needed a logical XOR. If you have two boolean variables you can mimic XOR with: if (a != b) … Read more
Java does have a logical XOR operator, it is ^ (as in a ^ b). Apart from that, you can’t define new operators in Java. Edit: Here’s an example: public static void main(String[] args) { boolean[] all = { false, true }; for (boolean a : all) { for (boolean b: all) { boolean c … Read more