Simple smart contract to swap two variables in Solidity

Swapper.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.0;


// Simple contract to swap two variables in Solidity
contract Swapper {
    uint8 public x = 1;
    uint8 public y = 2;
    
    function swap() public {
        /**
         * Old school way
         * 
         * uint8 temp = x;
         * x = y;
         * y = temp;
         */ 
         
        // more cool way 😎 
        (x, y) = (y, x);
    }
}