foldl example
foldr example
Using foldr to implement map
Using foldl to implement map
Using foldl to implement reverse
Using foldl to implement product
Using foldr to implement filter
Using foldl1 to implement last
Using foldr on infinite lists: and
lambda vs function composition: turnIntoNegative
lambda vs function composition: negateTheSumOfTheTails
Point-free style example
Modules
Data.List example
Counting words
Needle in the haystack (isInfixOf)
Caesar cipher salad
Let's find some cool numbers and return a Maybe Int :)