Contents

module GradeSchool exposing (addStudent, allStudents, empty, studentsInGrade)

import Dict exposing (..)


type alias Grade =
    Int


type alias Student =
    String


type alias School =
    Dict Int (List Student)


empty : School
empty =
    Dict.empty


addStudent : Grade -> Student -> School -> School
addStudent grade student school =
    Dict.insert grade (List.sort (student :: studentsInGrade grade school)) school


studentsInGrade : Grade -> School -> List Student
studentsInGrade grade school =
    case Dict.get grade school of
        Just list ->
            list

        Nothing ->
            []


allStudents : School -> List ( Grade, List Student )
allStudents school =
    Dict.toList school |> List.sortBy Tuple.first

Version data entries

66 entries across 66 versions & 1 rubygems

Version	Path
trackler-2.2.1.119	tracks/elm/exercises/grade-school/GradeSchool.example.elm
trackler-2.2.1.118	tracks/elm/exercises/grade-school/GradeSchool.example.elm
trackler-2.2.1.117	tracks/elm/exercises/grade-school/GradeSchool.example.elm
trackler-2.2.1.116	tracks/elm/exercises/grade-school/GradeSchool.example.elm
trackler-2.2.1.115	tracks/elm/exercises/grade-school/GradeSchool.example.elm
trackler-2.2.1.114	tracks/elm/exercises/grade-school/GradeSchool.example.elm