santiago929

// SPDX-License-Identifier: Unlicense
pragma solidity >=0.6.0 <0.8.0;

contract week4Exercises {
    uint[] public numArray;
    constructor() {
        numArray = [2,62,10,33,12,9];
    }
    // Function that returns the whole numArray
    function returnArray() public view returns(uint256[] memory) {

santiago929

// SPDX-License-Identifier: Unlicense
pragma solidity >=0.6.0 <0.8.0;

contract exerciseWeek3 {

    uint256 number;
    //str is not a valid data type. Use string instead
    string word; 

    // Missing data location for string. Use memory. 

santiago929

// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.25;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

// Idealy, the input after we click "transact", should match the output once we all the designed function
contract thirdExample is ERC721{

    function getSelector(string memory _function) public view returns(bytes4) {
        return bytes4(keccak256(bytes(_function)));