October 2020 Haskell 1-Liners

• 2020-10-21: Curry `key` from
  secondPassFilter :: Ord a => a -> Set a -> Maybe b
secondPassFilter key = spf key . Set.lookupGE key
  Given spf :: a -> Maybe a -> Maybe b
• 2020-10-21: given: updater :: b -> Maybe b
  and firstPass :: Ord a => Map a b -> Map a b
firstPass m = foldr (Map.update updater) m (Map.keys m)
  #Curry away `m` from the firstPass-function
• Social Justice Cleric @noaheasterly
  firstPass = foldr (Map.update updater) <*> Map.keys
• 2020-10-20: all (\c -> any (`isPrefixOf` c) setb) notinb
  #Curry away the `c` lambda argument.