Re: [elm-discuss] why -> Sub msg in ports instead of Sub Msg

[Petr Vápenka]

Lowercase "msg" is just a type parameter. It says that the first and second
occurence of "msg" in the type signature means the same type, whatever that
type it actually is.

If it was Sub Msg, Msg would be some actual type you would be forced to
work with.

Petr

On Thu, Oct 13, 2016 at 6:42 PM, António Ramos  wrote:

> I would like to know why Sub msg in lowercase in above code
>
> port suggestions : (List String -> msg) -> Sub msg
>
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Re: [elm-discuss] why -> Sub msg in ports instead of Sub Msg

[Janis Voigtländer]

Relevant:
http://faq.elm-community.org/17.html#what-is-the-difference-between-cmd-msg-and-cmd-msg
​

2016-10-13 18:42 GMT+02:00 António Ramos :

> I would like to know why Sub msg in lowercase in above code
>
> port suggestions : (List String -> msg) -> Sub msg
>
> --
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> "Elm Discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an
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[elm-discuss] why -> Sub msg in ports instead of Sub Msg

[António Ramos]

I would like to know why Sub msg in lowercase in above code

port suggestions : (List String -> msg) -> Sub msg

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