Re: [Haskell-beginners] How to add a "method" to a record

Is this what you are looking for? data Foo pl = Foo { label :: pl -> String, payload :: pl } On Wed, Sep 10, 2014 at 2:06 PM, martin wrote:

Hello all

if I have a record like

data Foo pl = Foo { label :: String, payload :: pl }

how can I create a similar type where I can populate label so it is not a plain string, but a function which operates on payload? Something like

label (Foo pl) = show pl

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