workspace
stringclasses
4 values
channel
stringclasses
4 values
text
stringlengths
1
3.93k
ts
stringlengths
26
26
user
stringlengths
2
11
elmlang
general
anyway, yes you can do that with Elm with ports and/or web components
2019-04-04T05:13:18.366000
Nana
elmlang
general
the header at the very top is a live demo
2019-04-04T05:13:20.366200
Fidela
elmlang
general
Seems like a custom html element that wraps the library might be the way to go here
2019-04-04T05:15:00.366900
Danika
elmlang
general
that's good to hear, so I guess we still have agency over the DOM we need to control, & could hook into Elm-generated DOM elements to draw to? e.g. a <canvas> for deck, <svg> for d3?
2019-04-04T05:15:08.367000
Fidela
elmlang
general
as in <https://guide.elm-lang.org/interop/custom_elements.html> ?
2019-04-04T05:16:05.367300
Fidela
elmlang
general
yes
2019-04-04T05:16:32.367400
Nana
elmlang
general
good to hear, I think I will try to implement 2 POCs (one for each framework) to start with :slightly_smiling_face: thanks
2019-04-04T05:19:07.367600
Fidela
elmlang
general
Aye, I’ve not used them personally so I can’t be much help but I’m quite sure this is the way to go
2019-04-04T05:20:35.368500
Danika
elmlang
general
sure, I'll give that a more thorough look, thank you
2019-04-04T05:20:59.368900
Fidela
elmlang
general
I might have disabled hardware acceleration for Chrome :sweat_smile:
2019-04-04T05:22:28.369000
Nana
elmlang
general
You use `sysconfcpus -n 1` for CI or in general on your dev machine?
2019-04-04T05:28:57.369300
Lynn
elmlang
general
everywhere
2019-04-04T05:52:13.369600
Florencia
elmlang
general
Cool header! Here on Safari works smoothly :slightly_smiling_face:
2019-04-04T05:56:03.370400
Hoa
elmlang
general
<https://www.meetup.com/fr-FR/Meetup-Elm-Paris/>
2019-04-04T06:34:45.370900
Valeria
elmlang
general
<https://www.meetup.com/chicago-elm/>
2019-04-04T06:58:56.371300
Hoyt
elmlang
general
Is it possible to trigger a `Msg` in my `init` somehow? Or at least on program start?
2019-04-04T08:43:12.373400
Gertrude
elmlang
general
I'm using elm-uuid so I can create some unique IDs for something and I'm puzzling how to pre-populate the first value so I can use it in some other update branches
2019-04-04T08:48:41.374200
Gertrude
elmlang
general
Sure you can, through a `Cmd` or directly by calling `update` in `init`.
2019-04-04T09:05:39.374800
Antonette
elmlang
general
I don't know elm-uuid, but I'd wager that if they require you to seed some values through side-effects, there must be a function to get a `Task` or `Cmd` you can use to initialize your model.
2019-04-04T09:07:27.376600
Antonette
elmlang
general
There, look at this:
2019-04-04T09:08:01.376800
Antonette
elmlang
general
<https://package.elm-lang.org/packages/danyx23/elm-uuid/latest/Uuid#uuidGenerator>
2019-04-04T09:08:12.377100
Antonette
elmlang
general
I wound up doing this: ``` send : Msg -&gt; Cmd Msg send msg = Task.succeed msg |&gt; Task.perform identity ```
2019-04-04T09:09:22.378400
Gertrude
elmlang
general
So, this is a `Generator Uuid` ; `Generator` is a type that can be used with `Random.generate` <https://package.elm-lang.org/packages/elm-lang/core/latest/Random#generate> to give you a `Cmd msg` that gets a value of the type the `Generator` provides (in this case a `Uuid`).
2019-04-04T09:10:07.379300
Antonette
elmlang
general
as it turns out I can't use UUIDs for this anyway. XD
2019-04-04T09:10:59.380100
Gertrude
elmlang
general
I need instead to somehow make unique integer IDs. :stuck_out_tongue:
2019-04-04T09:11:15.380700
Gertrude
elmlang
general
Well, at least now you know how to get one when needed :wink:
2019-04-04T09:11:16.380800
Antonette
elmlang
general
Depending on how unique you want your ids to be, a `Generator Int` could do the trick.
2019-04-04T09:13:08.382600
Antonette
elmlang
general
<https://package.elm-lang.org/packages/elm-lang/core/latest/Random#int>
2019-04-04T09:13:36.382800
Antonette
elmlang
general
Yeah. The issue is I have this list of "Entries" and I need to make sure that when I create a new one as a placeholder, I need to give it an id that doesn't match any of the others.
2019-04-04T09:14:41.384600
Gertrude
elmlang
general
With a `Generator` however, there is always a slight chance of picking the same number twice, so it might be a good idea to not just blindly accept any number it spits out, or do something a bit more unique-y like maintaining a list of available ideas in which you pluck one each time, and maybe add one back once you've...
2019-04-04T09:14:56.385200
Antonette
elmlang
general
Fortunately, I have the ability to query for the latest entry, so I will just grab that and add one.
2019-04-04T09:15:01.385400
Gertrude
elmlang
general
It's SQL sequential IDs so this should work, since I don't actually even send that ID back to the backend, it's just there to prevent edit collisions
2019-04-04T09:15:46.386700
Gertrude
elmlang
general
The only downside to this plan is when you reach the highest possible `Int` ; in which case the "recyclable" list of available ids may do the trick.
2019-04-04T09:15:52.387000
Antonette
elmlang
general
If you want to prevent edit collision, I'd advise you use a way to distinguish "persisted" ids from "draft" ids.
2019-04-04T09:16:47.387800
Antonette
elmlang
general
(like an `Id x y` type: `type Id x y = Draft x | Persisted y`)
2019-04-04T09:17:36.388900
Antonette
elmlang
general
yeah. currently the largest ID is in the 1mil range, and we accrue about ~500 new IDs per day.
2019-04-04T09:19:43.389800
Gertrude
elmlang
general
Then the `type Id x y = Draft x | Persisted y` might be just the trick. You don't have to start your draft increment from the highest know ID, and you have a way to easily distinguish between persisted and draft elements.
2019-04-04T09:21:03.391200
Antonette
elmlang
general
Hmm. Could do.
2019-04-04T09:21:32.391400
Gertrude
elmlang
general
but on the flipside, it will, at present usage, take over 11,000 years to hit the ID cap of an Elm Int max size.
2019-04-04T09:23:24.392500
Gertrude
elmlang
general
each entry is also specific to a date, so it only has to be unique against other entries on that date, which further prevents collisions. I've probably been over thinking this.
2019-04-04T09:27:42.393600
Gertrude
elmlang
general
As long as you don't get oddities from an id being set on a draft while an element is persisted in the database with the same id, you should be fine I think.
2019-04-04T09:29:26.394900
Antonette
elmlang
general
Yeah. When new entries are saved we don't send the ID.
2019-04-04T09:29:58.395200
Gertrude
elmlang
general
and saving an entry triggers a refresh response of the entire list of entries from the backend, so that they once again reflect whatever's in the data base.
2019-04-04T09:30:46.396300
Gertrude
elmlang
general
Then my advice is: don't overthink :wink: you'll still be able to change it later if you need something more robust anyways.
2019-04-04T09:31:19.396900
Antonette
elmlang
general
Luke got me this list <https://www.meetup.com/topics/elm-programming/all/> which is decent!
2019-04-04T09:48:52.397100
Marcellus
elmlang
general
just now I learned a thing: a Msg is sometimes a function and sometimes a value, and so Elm's type inference will assume the latter if you try to pass one as a generic value.
2019-04-04T09:51:35.398600
Gertrude
elmlang
general
So if you have a message `EditEntry String Entry`, and you pass `EditEntry` to a function that expects a `msg` generic type variable, it will not realize that `EditEntry` is a constructor, and so if you then try to give it arguments it complains that it is not a function.
2019-04-04T09:53:01.400300
Gertrude
elmlang
general
You have to make explicit that you're taking a constructor function for a msg: `(String -&gt; Entry -&gt; msg)` will work.
2019-04-04T09:53:41.401100
Gertrude
elmlang
general
The way I see it is that `msg` is a generic value/function/whatever for Elm. If you use `Msg` the compiler can be more precise
2019-04-04T09:54:44.401900
Hoa
elmlang
general
makes sense ?
2019-04-04T09:55:00.402300
Hoa
elmlang
general
yeah. In this case I have not yet refactored such that I can refer to Msg directly in the function without cyclic dependency. This may be a good moment to fix that.
2019-04-04T09:55:22.402800
Gertrude
elmlang
general
I have this "non optimal" use case where i would like to call java code from elm. I found "TeaVM" that lets you compile java to .js. So i guess it would be doable with elm ports. But, i wonder if theres an even better solution?
2019-04-04T10:04:04.404800
Carter
elmlang
general
Java code? You're running it on the backend?
2019-04-04T10:05:59.405100
Niesha
elmlang
general
Just make it a REST API call.
2019-04-04T10:06:18.405600
Niesha
elmlang
general
yeah that too. But i would like to call java code clientside
2019-04-04T10:06:24.405800
Carter
elmlang
general
How would you run Java on the browser?
2019-04-04T10:06:37.406300
Niesha
elmlang
general
Well, thats the thing - i dont want to do that
2019-04-04T10:06:40.406400
Carter
elmlang
general
Theres that TeaVM. I compiles java to js.
2019-04-04T10:07:03.406900
Carter
elmlang
general
so through elm ports id be able to call it
2019-04-04T10:07:16.407200
Carter
elmlang
general
its just one function but involves quite a bit of types
2019-04-04T10:08:04.407600
Carter
elmlang
general
(classes/intefaces as java calls them)
2019-04-04T10:08:18.408000
Carter
elmlang
general
<@Carter> sounds like you want a fork of TeaVM (or in fact plain GWT) that transpiles to Elm directly...
2019-04-04T10:12:59.408700
Corinne
elmlang
general
Note their docs though: &gt; If you are a JavaScript developer who is satisfied with JavaScript, TypeScript or even elm, you probably won’t need TeaVM.
2019-04-04T10:13:35.409400
Corinne
elmlang
general
well, i need to share java code between server and client
2019-04-04T10:15:00.410300
Carter
elmlang
general
I agree with <@Niesha> here - API is the way
2019-04-04T10:17:07.410700
Corinne
elmlang
general
(unless you want to use a Java Applet of course :laughing: )
2019-04-04T10:17:59.411000
Corinne
elmlang
general
Hey folks
2019-04-04T10:35:57.411300
Willodean
elmlang
general
I am back writing Elm once again!
2019-04-04T10:36:06.411700
Willodean
elmlang
general
I wrote a Modal yesterday and could use feedback on the approach
2019-04-04T10:37:32.412400
Willodean
elmlang
general
I used the krisjenkins style type for the Modal
2019-04-04T10:37:54.413000
Willodean
elmlang
general
And it worked fine. I had a button in the UI that sends a message with my Modal type inside
2019-04-04T10:38:27.414100
Willodean
elmlang
general
Problem is, it doesn't sync with the model after it fires the first time
2019-04-04T10:38:53.414900
Willodean
elmlang
general
So I end up with something like this
2019-04-04T10:39:07.415300
Willodean
elmlang
general
``` type Model = Model { ...stuff , modalState = Toggle , modalView = Model -&gt; Modal Msg } type Msg = ...stuff | OpenModal (Model -&gt; Modal Msg) | CloseModal ```
2019-04-04T10:40:09.417100
Willodean
elmlang
general
Which feels very unElm
2019-04-04T10:40:45.417500
Willodean
elmlang
general
It works for now, but I would very much appreciate a suggestion
2019-04-04T10:44:57.419600
Willodean
elmlang
general
is it generally necessary to expose anything but `main` from your `Main` module?
2019-04-04T10:46:26.420100
Gertrude
elmlang
general
No, you should be able to expose just `main`
2019-04-04T10:47:55.420200
Carman
elmlang
general
I thought so. was wondering why I was bothering to export anything else but I think it's just something elm-format did
2019-04-04T10:51:20.420400
Gertrude
elmlang
general
if you want to use function from your Main module in the repl, you'll need to expose them :slightly_smiling_face:
2019-04-04T10:54:31.420700
Sharon
elmlang
general
That is a problem. I think we need some more information to figure out why
2019-04-04T11:02:10.421000
Sharon
elmlang
general
Is it maybe possible to share an example on <http://ellie-app.com/> ?
2019-04-04T11:03:34.421200
Sharon
elmlang
general
:wave: Hi! Until Monday, I’d never written any code to put pixels on a website, only backend data engineering work. I went through the Elm tutorial and got from zero ( + only a bit of FP experience, though lots of interest) to making a test site that displays random emoji (wheee, types) on click in one day! I’m so glad...
2019-04-04T12:18:47.424700
Diedre
elmlang
general
Hi, I when running `elm install mpizenberg/elm-debounce` I consistently get the following error ```-- CORRUPT JSON ---------------------------------------------------------------- The elm.json for elm-community/list-extra 2.0.0 got corrupted somehow. I removed it from my file cache, so if it was some transient error ...
2019-04-04T12:48:34.427200
Jae
elmlang
general
One thing I noticed is that <https://package.elm-lang.org/packages/mpizenberg/elm-debounce/3.0.2/> exists on the package site but if you search "elm-debounce" it doesn't get listed
2019-04-04T12:49:19.427300
Jae
elmlang
general
That's because that version is not updated for Elm 0.19
2019-04-04T12:49:55.427500
Carman
elmlang
general
I thought 0.18 packages weren't listed at all on the 0.19 package site?
2019-04-04T12:50:47.427800
Jae
elmlang
general
They are excluded from the search results
2019-04-04T12:51:22.428100
Carman
elmlang
general
but if you have a direct link you can still reach it
2019-04-04T12:51:33.428300
Carman
elmlang
general
&gt;&gt;&gt; I do not have the time to update it to elm 0.19 with the modifications I wished in response to issues #5 and #6 (removing functions and state monad, move functionalities to update instead of view). You will probably find what you need with Gizra/elm-debouncer.
2019-04-04T12:51:45.428500
Carman
elmlang
general
from the README
2019-04-04T12:51:49.428700
Carman
elmlang
general
Oops, this whole time I thought there was a separate domain for 0.18 packages
2019-04-04T12:52:30.428900
Jae
elmlang
general
The easiest way to check if a package supports 0.19 is to look it up on GitHub. If it has an `elm.json` then it's 0.19. If it has an `elm-package.json` then it's 0.18 or older
2019-04-04T12:53:23.429300
Carman
elmlang
general
Alright
2019-04-04T12:53:31.429500
Jae
elmlang
general
Should I still open a github issue for the error message though? ```-- CORRUPT JSON ---------------------------------------------------------------- The elm.json for elm-community/list-extra 2.0.0 got corrupted somehow. ...``` is not very helpful!
2019-04-04T12:54:02.429700
Jae
elmlang
general
Is `Debug` the only way to cause a side-effect without a `Cmd`?
2019-04-04T14:34:03.431400
Leoma
elmlang
general
Pretty much.
2019-04-04T14:34:21.431600
Niesha
elmlang
general
perhaps causing a javascript `RangeError` also qualifies
2019-04-04T14:35:45.432200
Virgie
elmlang
general
through unbounded recursion
2019-04-04T14:35:52.432500
Virgie
elmlang
general
No, you can also do the trick with js proxies
2019-04-04T14:37:40.433200
Kris