Don't (typed) Union types work better for errors(with pattern matching)
In haskell I think a nullable type or possibly error type frequently returned from functions which can error
ie.
data Maybe a = Nothing | Just a
data Either a b = Left a | Right b
instead of
(err,result)
like in go
"The majority opinion was written by Justice Antonin Scalia, and joined by Chief Justice John Roberts and Justices Anthony Kennedy, Clarence Thomas, and Samuel Alito"
And that's why we need a more liberal supreme court.