이 레슨은 당분간 영어로 제공돼요.
Errors with a name
A caller needs to tell "post not found" apart from "database down". Give an error a name with a sentinel, or give it details with your own error type.
이 레슨은 당분간 영어로 제공돼요.
A caller needs to tell "post not found" apart from "database down". Give an error a name with a sentinel, or give it details with your own error type.