[Haskell-beginners] enumaratioin question

[Leza Morais Lutonda]

Maybe you will want this:

data Person = Person {
                 name :: String,
                 age :: Int,
                 favThing :: String
             }


And get the age:

getAge :: Person -> Int

getAge p = age p


Or better:

getAge = age


On 02/19/2015 11:28 AM, Roelof Wobben wrote:
> Hello,
>
> Im reading chapter 2 of the CIS 194 course about enumaratuin.
>
> Now they give this example :
>
> |-- Store a person's name, age, and favourite Thing.
> data  Person  =  Person  String  Int  Thing
>    deriving  Show
>
> brent ::  Person
> brent=  Person  "Brent"  31  SealingWax
>
> stan ::  Person
> stan=  Person  "Stan"  94  Cabbage
>
> getAge ::  Person  ->  Int
> getAge (Person  _ a _)=  a
>
> I understand how this works.
>
> But I wonder if there is no "better" way to get the Age.
>
> Is it now wise to make  a person data like this :
>
> data Person = Name : String
>      | Age : Integer
>      | FavThing : String
>
> And if so , how can I get the age then ?
>
> Roelof
>
>
> |
>
>
>
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50 Aniversario de la Cujae. Inaugurada por Fidel el 2 de diciembre de 1964  http://cujae.edu.cu


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