Kata

Find the last element of the given argument(s). If a single argument is passed and is a list/array or a string, return its last element. It is guaranteed that there will be at least one argument and that single-argument arrays/lists/strings will not be empty.

Examples

last [1, 2, 3, 4]     -- =>  4
last ['x', 'y', 'z']  -- => 'z'

(last [1, 2, 3, 4]) ; => 4
(last "xyz")        ; => \z

last(Arrays.asList(1, 2, 3, 4)); // =>  4
last("xyz");                     // => "z"
last(1, 2, 3, 4);                // =>  4
last(new int[]{1, 2, 3, 4});     // =>  4

last(&[1, 2, 3, 4])     // =>  4
last(&['x', 'y', 'z'])  // => 'z'

(courtesy of haskell.org)