get last element in list 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: get tail of list haskell

list = [1, 2, 3, 4]

tail :: [a] -> [a]
tail [] = []
tail (_:xs) = xs