#20
Penultimate Element
| Difficulty: | Easy |
| Topics: | seqs |
Write a function which returns
the second to last element from a sequence.
 | (= (__ (list 1 2 3 4 5)) 4) |
| (= (__ ["a" "b" "c"]) "b") |
| (= (__ [[1 2] [3 4]]) [1 2]) |