Re: [Haskell-beginners] How to extract from Maybe & Either in GHCi

On 14 April 2011 00:52, wrote:

Pattern matching works in ghci:

...

let x = Just (Left (Blah [stuff]))

...

let (Just (Left (Blah y)) = x

Thanks! That's exactly what I'm looking for.

FWIW there is also Data.Either which has the either function. λ> :t either either :: (a -> c) -> (b -> c) -> Either a b -> c Quite useful sometimes.