Solidity What does _ (underscore)

What does _ (underscore)

함수 정의

modifier onlyOwner {
    if (msg.sender != owner) throw;
    _;
}

 

함수 사용

function setTitle (string _title) onlyOwner {
     hometitle = _title;
 }

 

발생한 효과

//아래와 같은 효과
if (msg.sender != owner) throw;
hometitle = _title;

 

https://docs.soliditylang.org/en/develop/contracts.html#function-modifiers

https://gavofyork.medium.com/condition-orientated-programming-969f6ba0161a