penultimate element haskell code example

Example 1: last element of list haskell

list = [1, 2, 3, 4]

last [a] -> a
last [x] 	= x
last (_:xs) = last xs

last list -- 4

Example 2: haskell get last element of list

list = [1,2,3,4,5]
last list -- returns 5