alt Hacker NewsIf a function `func foo() (int, error)` returns a non-nil error, then the corresponding `int` is absolutely invalid and should never be evaluated by the caller, unless docs explicitly say otherwise.
If a function `func foo() (int, error)` returns a non-nil error, then the corresponding `int` is absolutely invalid and should never be evaluated by the caller, unless docs explicitly say otherwise.
And this is why I prefer exceptions.
Errors are common but they are errors: they absolutely represent an exceptional branch of your control flow every time.
It seems reasonable to ask if that int should even be available in the control flow syntactically.