このレッスンは、現在英語のみです。
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.
このレッスンは、現在英語のみです。
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.