Submission Details
Severity:
`ChristmasDinner::_refundETH` function does not follow CEI.
Summary:
The function should look like as mentioned.
```diff
function _refundETH(address payable _to) internal {
uint256 refundValue = etherBalance[_to];
+ etherBalance[_to] = 0;
_to.transfer(refundValue);
- etherBalance[_to] = 0;
}
```
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