CharRange.elm

import Char
import Html exposing (..)
import Html.Attributes exposing (..)

chars : Char -> Char -> List Char
chars x y = 
  let 
    a = Char.toCode x
    b = Char.toCode y
    nums = [a .. b]
  in
    List.map Char.fromCode nums

(...) = chars


main = div [] <| List.map (text << toString) ('A' ... 'Z')