Contents

module Allergies exposing (isAllergicTo, toList)

import Bitwise
import List


isAllergicTo : String -> Int -> Bool
isAllergicTo name score =
    List.member name (toList score)


toList : Int -> List String
toList score =
    allergies
        |> List.indexedMap (\i n -> ( Bitwise.shiftLeftBy i 1, n ))
        |> List.filter (\( s, n ) -> Bitwise.and s score > 0)
        |> List.map Tuple.second


allergies : List String
allergies =
    [ "eggs"
    , "peanuts"
    , "shellfish"
    , "strawberries"
    , "tomatoes"
    , "chocolate"
    , "pollen"
    , "cats"
    ]

Version data entries

66 entries across 66 versions & 1 rubygems

Version	Path
trackler-2.2.1.139	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.138	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.137	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.136	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.135	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.134	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.133	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.132	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.131	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.130	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.129	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.128	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.127	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.126	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.125	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.124	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.123	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.122	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.121	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.120	tracks/elm/exercises/allergies/Allergies.example.elm