Cmd.Extra

Experimental package with helpful functions for working with Cmd.

This package can help you with construction of Cmd msg and composition of pair (model, Cmd msg) that can be used to streamline your flow of actions in update.

    type Msg
        = NoOp
        | Disarm
        | Fire
        | FireRockets

    update : Msg -> Model -> ( Model, Cmd Msg )
    update msg model =
        case msg of
            DoNothing ->
                Cmd.Extra.pure model
                -- equivalent of (model, Cmd.none)

            Disarm ->
                Cmd.Extra.withTrigger NoOp model
                -- equivalent of (model, Cmd.Extra.perform NoOp)

            Fire ->
                ( model, Cmd.Extra.perform FireRockets )

            FireRockets ->
                Rockets.Nukes.fire

Feedback and contributions are very welcome.

License

BSD 3-Clause License