99 Elm Problems/Problem 2

Problem 2: Implement the function penultimate to find the next to last element of a list.

import Html exposing (text)
import List
import Maybe

penultimate : List a -> Maybe a
-- your implementation goes here
  
main =
  case penultimate (List.range 1 4) of
    Just a -> text (toString a)
    Nothing -> text "No element found"

Result:

Solutions

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