Fundraiser.sol

... 

function myDonations() public view returns (
      uint256[] memory values,
      uint256[] memory dates
  )

  {
    uint256 count = myDonationsCount();
    values = new uint256[](count);
    dates = new uint256[](count);
    for (uint256 i = 0; i < count; i++) {
        Donation storage donation = _donations[msg.sender][i];
        values[i] = donation.value;
        dates[i] = donation.date;
    }
    return (values, dates);
  }
 ...