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-2.2.1.159	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.158	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.157	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.156	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.155	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.154	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.153	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.152	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.151	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.150	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.149	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.148	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.147	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.146	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.145	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.144	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.143	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.142	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.141	tracks/elm/exercises/allergies/Allergies.example.elm
trackler-2.2.1.140	tracks/elm/exercises/allergies/Allergies.example.elm