*Featured function* pages are quick overviews of interesting functions we just want to draw more attention to.

- ($)
`($) :: (a -> b) -> a -> b`

- intercalate
`intercalate :: [a] -> [[a]] -> [a]`

- mapMaybe
`mapMaybe :: (a -> Maybe b) -> [a] -> [b]`

- null
`null :: Foldable t => t a -> Bool`

- Rounding
`round :: (RealFrac a, Integral b) => a -> b`

`truncate :: (RealFrac a, Integral b) => a -> b`

`ceiling :: (RealFrac a, Integral b) => a -> b`

`floor :: (RealFrac a, Integral b) => a -> b`

- singleton
`singleton :: a -> [a]`

- toIntegralSized
`toIntegralSized :: (Integral a, Integral b, Bits a, Bits b) => a -> Maybe b`