Re: [elm-discuss] Re: pattern matching on a field within a record

Re: your initial post... you could rewrite the code as case Maybe.map .cell c of Just (Letter s) -> s _ -> "" Don't know if that's any easier to read, though. Regarding null_square: If you want to make sure that null_square is passed by reference, you can define it as a top-level

[elm-discuss] Emoji library API

Hi elm-discuss! I'm Travis Parker ("tjp" on slack) and I've just recently started using elm, first for an internal project at work (so not public code, a green field project though!) and now for a separate, personal project. I've been working with emojis

Re: [elm-discuss] Re: How to make a view with a list of components

There is a law for Functors ("mappable" structures): List.map (f) >> List.map (g) == List.map (f >> g) So, you can compose functions you map over data in list instead of composing several maps on list. > 24 сент. 2016 г., в 23:09, Antoine Snyers > написал(а): >

[elm-discuss] Confused by error (inline function, >, tagged type)

Your > seems to be shadowing core's > and thus not letting you compare the floats. It makes sense. Regarding the type wrapping better use a type alias for using the value directly as a float but having it be DropsPerSecond on the type signatures. type alias DropsPerSecond = Float -- You

[elm-discuss] Confused by error (inline function, >, tagged type)

This is likely due to a conflict with core's < which is imported automatically. I'm not sure how much tagged types get you though; maybe a type alias would be a better choice? -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe

[elm-discuss] Re: Modeling cross-references

If the random access happens only on user input, ie it's not something you need to do several thousands times per second, stick to Lists. If you need a particular sorting order, stick to Lists. You can use `Dict.foldl/r` to map a dictionary to a list in a single step, rather than first

[elm-discuss] Re: Modeling cross-references

Thanks for this question and the suggestions - very useful to issues I am dealing with now. Some questions: - Is it better to use Dicts as the basic 'table' structure, if frequently rendering lists of items filtered and sorted in various ways? In short, is it better to convert a `List (ID,

[elm-discuss] Confused by error (inline function, >, tagged type)

I’m trying to dutifully use tagged types instead of, say, `Float`: type DropsPerSecond = DropsPerSecond Float It turns out I want to know which of two `DropsPerSecond` is larger. Which suggests this: (>) : DropsPerSecond -> DropsPerSecond -> Bool (>) (DropsPerSecond left) (DropsPerSecond

Re: [elm-discuss] Elm, Objects and Components

Mark, this seems worth a separate thread. Would you mind opening one that explains a couple of motivating problem scenarios, and then this proposed solution? On Sat, Sep 24, 2016, 5:28 PM Mark Hamburg wrote: > I wonder if the following strategy would work to address

[elm-discuss] Re: How to make a view with a list of components

Wow, what a difference! Thanks a lot, Pierre and Eric, this has been an eye opener for me. On Saturday, September 24, 2016 at 7:26:05 PM UTC+2, Eric G wrote: > > Hi Antoine, > > I think you can use function composition like this to make it easier: > > List.map (viewLog >> App.map TaskLog)

[elm-discuss] Re: Announcing elm-test 2.1.0!

I can't wrap my head about how to write a fuzz (generator) for a record with more than 5 fields using andMap operator. Could you please insert an example into the documentation of the andMap function? Like it is done for e.g. Josn.Decode.Extra.apply

Re: [elm-discuss] Re: pattern matching on a field within a record

Don't think that will work because c is of type Maybe Square, not Maybe Cell. One further question - if I define let null_square = { cell = Empty, num = 0 } let get_square maybe_square = case maybe_cell of Nothing: null_square Just s : s let get_letter maybe_square = case

[elm-discuss] The Elm Slack is now archived by SlackArchive.io

The link to the archives is http://elmlang.slackarchive.io/ If you are a user of the slack yourself and find that your favorite channel is not being archived you can run the command */invite @archivebot* to get things rolling. Thanks friends! -- You received this message because you are

[elm-discuss] Re: Modeling cross-references

I tend to model things like this with Dicts, Sets, and a type alias for each identifier. So, something like type alias Model = { artists : Dict ArtistId Artist , albums : Dict AlbumId Album } type alias ArtistId = Int type alias Artist = { id : ArtistId , name : String , albums

Re: [elm-discuss] Proposal: shorthand record names

That feature, for pattern matching, Elm already has. > Am 24.09.2016 um 20:38 schrieb Dave Thomas : > > I don't think its overly verbose as it is, ocaml has a feature called field > pruning: > >> When the name of a variable coincides with the name of a record field,

Re: [elm-discuss] Proposal: shorthand record names

Can you give a concrete example of what this would look like in Elm? Are you sure this is compatible with type inference? On Sep 24, 2016 10:46 AM, "Zane Hitchcox" wrote: > Shorthand property names like in javascript >

Re: [elm-discuss] Elm, Objects and Components

On Sep 24, 2016, at 2:18 AM, Peter Damoc wrote: > >> On Sat, Sep 24, 2016 at 12:20 AM, Richard Feldman >> wrote: >> Got it. >> >> Fair point, although to me this suggests that WCs are best suited for state >> you don't mind losing, e.g. for a

Re: [elm-discuss] Elm, Objects and Components

On Sat, Sep 24, 2016 at 12:20 AM, Richard Feldman < richard.t.feld...@gmail.com> wrote: > Got it. > > Fair point, although to me this suggests that WCs are best suited for > state you don't mind losing, e.g. for a ripple effect. :) > Some of the components might have a complex user interaction