medium10 pts · first answer countssoliditygas

Custom errors

Why do modern Solidity contracts prefer custom errors like error InsufficientBalance(uint256 needed) over require with a string?

A.Custom errors are cheaper in deployment and revert gas, and can carry typed data for frontendsB.Strings in require are not allowed after Solidity 0.8C.Custom errors cannot be caught, so they are more secureD.Custom errors make the transaction succeed anyway

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Custom errors

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