Using a filtered list in a new function in haskell

Question

So i\'m not too sure how to phrase this properly, but say I wanted to get the sum of all odd numbers in a list, do I have two functions (sumList and getOddNumbers) and combi

Answer 1

In the following are three equivalent ways to write the function oddSum :: [Integer] -> Integer:

oddSum xs = sumList (getOddNumbers xs)

oddSum xs = sumList $ getOddNumbers xs

oddSum = sumList . getOddNumbers

Btw, have a look at the filter and sum functions in the Prelude with which you could replace getOddNumbers and sumList respectively.