Haskell data

A keyword used to define a new Haskell Datatype. Involves a:

• Haskell Typeclass constructor Typectr for defining the type
• Specific Value constructor Valctr to create a value of the type
• A collection of components/fields with varying datatypes

data Typectr = Valctr Datatype1 Datatype2 ...

Example

data BookInfo = Book Int String [String]
				deriving (Show)

• Haskell Show allows us to use the Haskell show function to get a string representation