ArraySearchSolidity.sol

    function findPositionInArrayForLoop(uint _item, uint[] memory _array) pure internal returns (uint i) { // requirements should come before.
        uint[] memory tmpArray = _array;
        uint arrayLength = tmpArray.length;

        for (i = 0; i < arrayLength;) {
            if (tmpArray[i] != _item) {
                unchecked {
                    i++;
                }
                continue;
            } else {
                return i;
            }
        
        }
    }


    function findPositionInArrayAssembly(uint _item, uint[] calldata _array) pure internal returns (uint tokenPosition) { // i've made this on a whim. My first Yul baby <(.3.)>. Will be used later to reduce code more.
        assembly {
        let guard := add(1, calldatasize())
        for {let offset := _array.offset} 
            lt(offset, guard) 
            {offset := add(offset, 32)} {
                if eq(calldataload(offset), _item) {
                    tokenPosition := sub(div(offset, 32), 3) // could potentially comment out the lines below.
                    mstore(0, sub(div(offset, 32), 3))
                    return(0, 32) 
                    }
                }
            }
    }