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

Use the maybe function from Data.Maybe. maybe :: b -> (a->b) -> Maybe b -> b On 13 April 2011 23:14, wrote:

I've got some values in GHCi that look like

Just (Left (Blah [stuff]))

and I'd like to pull out the (Blah [stuff]) to operate on it. Is there a way to do this directly in GHCi without writing a helper function?

thanks Lee Short

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