Lazersmoke

-- Data decls could be in their own module for qualified import?
-- Alternatively, there might be a solution in GHC 8's duplicate record fields...

-- Only thing to update to add fields is the accessor functions

-- Test with an int and a str
data Test = MkTest Integer String deriving (Eq,Show)

number :: Access Integer Test
number f (MkTest n s) = (f n, MkTest (f n) s)

mikehaertl

Learn you a Haskell - In a nutshell

This is a summary of the "Learn You A Haskell" online book under http://learnyouahaskell.com/chapters.

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1. Introduction

• Haskell is a functional programming language.