learning-haskell/05-types/5.6-apply-yourself.md

Exercise: Apply Yourself

1. myConcat :: [Char] -> [Char] -> [Char]. The second argument to (++) is a [Char] and so all types need to be [Char].
2. myMult :: Fractional a => a -> a. The (/) requires the Fractional typeclass (which is a subset of the Num class.)
3. myTake :: Int -> [Char] -> [Char]. Same reason a (1)
4. myCom :: Int -> Bool. Second argument of (<) is Int, which inherits the Ord typeclass so we no longer need to specify it.
5. myAlph :: Char -> Bool.