Snippet code for allocate memory array

memory.sol

pragma solidity 0.5.10;

contract GenerateArray {
  function getZeroArrayLengthFive() public pure returns(uint256[5] memory) {
    uint256[5] memory fArray;
    return fArray;
  }
    
  function getZeroArray(uint256 size) public pure returns(uint256[] memory) {
    uint256[] memory fArray = new uint256[](size);
    return fArray;
  }
}