A headless Elm program

Main.elm

module Main exposing (..)

import MyProgram exposing (print)
import Platform exposing (program)


nodeProgram : a -> Program Never () ()
nodeProgram _ =
    program
        { init = ( (), Cmd.none )
        , update = \() -> \() -> ( (), Cmd.none )
        , subscriptions = \() -> Sub.none
        }


main : Program Never () ()
main =
    nodeProgram (print 9)

MyProgram.elm

module MyProgram exposing (..)


print : Int -> Int
print num =
    Debug.log "num of destiny" num

run.sh

elm make --output main.js *.elm
node main.js