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elmlang
general
Haha so far it does seem really nice!!
2019-02-13T14:58:15.242100
Renda
elmlang
general
Im trying to imagine what I would do in OOP if I want to add some AI logic to my game next. Here I just add a few new functions to the pipeline :stuck_out_tongue: :clap::skin-tone-2:
2019-02-13T14:59:26.243200
Renda
elmlang
general
<https://i.imgur.com/1AraF4i.jpg>
2019-02-13T15:04:27.243600
Earnest
elmlang
general
Yes, game "AI" = which is just dumb if statement stuff indeed. :stuck_out_tongue:
2019-02-13T15:15:29.244000
Renda
elmlang
general
well I'll be damned, my shrinker really works. in the last week I conquered parsers and shrinkers, two things I usually avoided :muscle:
2019-02-13T15:33:51.245100
Florencia
elmlang
general
Can anyone point me to the best place to ask a question about Json.Decode.Pipeline?
2019-02-13T16:38:36.247200
Jude
elmlang
general
Basically, I have a model where I want to decode `buildNumber` but it might be in Json as `build` or `buildNumber` and I'm struggling to figure out how to do that.
2019-02-13T16:39:48.247900
Jude
elmlang
general
<#C192T0Q1E|beginners> :slightly_smiling_face:
2019-02-13T16:41:05.248100
Noelle
elmlang
general
<@Jude> what kind of value are you trying to parse this as? Are they both integers?
2019-02-13T16:42:04.248700
Carman
elmlang
general
Do you know what situations lead it to being in one place or another?
2019-02-13T16:42:32.249400
Carman
elmlang
general
string or null. basically I'm hitting an API that has versioned and not all data has updated. what we had before when it was just `buildNumber` was this:
2019-02-13T16:43:13.250000
Jude
elmlang
general
`|&gt; Json.Decode.Pipeline.optional "buildNumber" (Decode.nullable Decode.string) Nothing`
2019-02-13T16:43:16.250200
Jude
elmlang
general
but now the property might be at `build` instead of `buildNumber` so I want to check both before using `Nothing`
2019-02-13T16:43:39.250700
Jude
elmlang
general
Are there any rules that guide whether it might be in one place or another? Is it random? Can both be present?
2019-02-13T16:45:04.251500
Carman
elmlang
general
one or the other, or neither
2019-02-13T16:45:30.251800
Jude
elmlang
general
Old data will have `buildNumber`, or nothing, new data will have `build` or nothing
2019-02-13T16:46:09.252500
Jude
elmlang
general
When you make a request do you know if you're dealing with old or new data?
2019-02-13T16:46:39.252800
Carman
elmlang
general
no
2019-02-13T16:47:04.253000
Jude
elmlang
general
You can build a decoder that uses the first location that works: ``` oldOrNewBuildNumber : Decoder String oldOrNewBuildNumber = Decode.oneOf [ Decode.field "buildNumber" Decode.string , Decode.field "build" Decode.string ] ```
2019-02-13T16:50:27.254500
Carman
elmlang
general
You can then plug this into a pipeline using `Json.Decode.Pipeline.custom`
2019-02-13T16:50:47.255000
Carman
elmlang
general
``` |&gt; Json.Decode.Pipeline.custom oldOrNewBuildNumber ```
2019-02-13T16:51:09.255400
Carman
elmlang
general
hey that got me really close! thanks!
2019-02-13T16:58:55.255700
Jude
elmlang
general
I needed nullables to match up, but that's it
2019-02-13T16:59:05.256000
Jude
elmlang
general
``` Decode.oneOf [ Decode.field "buildNumber" (Decode.nullable Decode.string) , Decode.field "build" (Decode.nullable Decode.string) ] ```
2019-02-13T16:59:14.256300
Jude
elmlang
general
You may want to move the nullable out one level
2019-02-13T17:04:36.257000
Carman
elmlang
general
``` |&gt; Json.Decode.Pipeline.custom (Decode.nullable oldOrNewBuildNumber) ```
2019-02-13T17:04:49.257300
Carman
elmlang
general
This allows the `oldOrNewBuildNumber` decoder to be used in both nullable and non-nullable contexts
2019-02-13T17:05:15.257900
Carman
elmlang
general
That makes sense, thanks.
2019-02-13T17:05:52.258600
Jude
elmlang
general
I really appreciate the help
2019-02-13T17:05:58.258900
Jude
elmlang
general
Hi All. Is there a know best way to scroll to an anchor on an elm SPA?
2019-02-13T17:06:56.259100
Kayleigh
elmlang
general
Hello. Here are some functions to work with the dom <https://package.elm-lang.org/packages/elm/browser/latest/Browser-Dom>
2019-02-13T17:10:06.259300
Noelle
elmlang
general
Maybe this is what you are looking for? <https://package.elm-lang.org/packages/elm/browser/latest/Browser-Dom#setViewportOf>
2019-02-13T17:10:25.259500
Noelle
elmlang
general
A quick-and-easy approach is to focus on it: <https://package.elm-lang.org/packages/elm/browser/latest/Browser-Dom#focus>
2019-02-13T17:16:37.261100
Lorilee
elmlang
general
Hi, i have been slowly trying to go through the spa example (<https://github.com/rtfeldman/elm-spa-example>) by implementing one myself and I cannot figure out a user gets redirected after Login. Anyone can explain me ?
2019-02-13T17:17:30.261900
Hiedi
elmlang
general
Thanks <@Lorilee>! That will get me what I need.
2019-02-13T17:18:21.262000
Kayleigh
elmlang
general
Is because of the subscription. Is subscribed to session changes with a message `GotSession`
2019-02-13T17:18:22.262200
Noelle
elmlang
general
I saw that but how is the session changed after Login ?
2019-02-13T17:18:52.262400
Hiedi
elmlang
general
If the log in is success, you have a CMD that communicates to the port that is defined in the html/index.js (elm initialization)
2019-02-13T17:20:00.262600
Noelle
elmlang
general
That port sends back the session through a port. And the Login page is subscribed to listen to those changes
2019-02-13T17:20:35.262900
Noelle
elmlang
general
``` CompletedLogin (Ok viewer) -&gt; ( model , Viewer.store viewer )```
2019-02-13T17:22:08.263300
Noelle
elmlang
general
Viewer: ```store : Viewer -&gt; Cmd msg store (Viewer avatarVal credVal) = Api.storeCredWith credVal avatarVal```
2019-02-13T17:22:29.263500
Noelle
elmlang
general
Oh ok so that's that, I read the code and I didn't get it triggered a sub
2019-02-13T17:22:32.263700
Hiedi
elmlang
general
Thx a lot <@Noelle>!
2019-02-13T17:24:19.264000
Hiedi
elmlang
general
No problem!
2019-02-13T17:24:38.264200
Noelle
elmlang
general
What's the best option for defining CSS in elm and in general in styling the page?
2019-02-13T18:44:15.268400
Bernardina
elmlang
general
<@Bernardina> best option for defining CSS in Elm : elm-css best option for styling/layout in general: probably elm-ui <https://package.elm-lang.org/packages/rtfeldman/elm-css/latest> <https://package.elm-lang.org/packages/mdgriffith/elm-ui/latest>
2019-02-13T18:51:14.269400
Nana
elmlang
general
I like to work with something like Tailwind.css as much as I can <https://tailwindcss.com/docs/what-is-tailwind/>
2019-02-13T18:57:34.270500
Carrol
elmlang
general
Then use `elm-css` for special cases
2019-02-13T18:57:41.270900
Carrol
elmlang
general
But I haven't use `elm-ui`, I hear great things about it all the time
2019-02-13T18:58:14.271600
Carrol
elmlang
general
I’m learning tailwind. Seems good so far
2019-02-13T18:59:00.271900
Noelle
elmlang
general
I liked BassCSS
2019-02-13T18:59:03.272100
Noelle
elmlang
general
Yeah, BassCss is great too, but tailwind improves on that idea
2019-02-13T18:59:30.272300
Carrol
elmlang
general
Yes, bass stopped to being developed :disappointed:
2019-02-13T19:01:20.272500
Noelle
elmlang
general
I’m making a pokedex with elm lol
2019-02-13T19:01:40.272700
Noelle
elmlang
general
I am actually struggling with changing button background color on mouse hover
2019-02-13T19:19:17.273300
Bernardina
elmlang
general
is this possible to do with elm's Html.Attributes style?
2019-02-13T19:20:03.273900
Bernardina
elmlang
general
<@Bernardina> `Html.Attributes style` is just like setting inline CSS styles, which doesn't support things like hover
2019-02-13T19:21:25.274900
Nana
elmlang
general
So in this case I either include external .css file, or I use `elm-css`?
2019-02-13T19:22:38.275800
Bernardina
elmlang
general
if you're not a CSS expert I would highly recommend elm-ui, it's way easier
2019-02-13T19:22:40.275900
Nana
elmlang
general
but yes elm-css or external css file also works
2019-02-13T19:23:03.276200
Nana
elmlang
general
Well, I have something based on `elm-bootstrap`
2019-02-13T19:23:37.276600
Bernardina
elmlang
general
<http://elm-bootstrap.info/>
2019-02-13T19:23:41.276900
Bernardina
elmlang
general
I am not sure if I can use with it `elm-ui`
2019-02-13T19:23:59.277300
Bernardina
elmlang
general
ah no elm-ui shouldn't really be combined with a css framework like Bootstrap
2019-02-13T19:27:48.277800
Nana
elmlang
general
though I'm also not sure how well elm-css would interact with Bootstrap - that's kind of the problem with CSS, when you start layering styles on top of each other
2019-02-13T19:30:15.278800
Nana
elmlang
general
Morning Everyone. I'm implementing a kind of i18n into an elm application. I have a question that could seems dumb. I am storing the formatting for a currency in the main Elm object. Now everytime someone wants to use CurrencyFormat needs to pass the main model. Is there a best practise to avoid passing the main model around ?
2019-02-14T04:32:33.281300
Anderson
elmlang
general
You don't have to pass the whole model to functions which need only currency format. Write functions accepting your CurrencyFormat record and pass only that field when calling them
2019-02-14T04:38:24.281400
Lynne
elmlang
general
Something like: ``` displayCurrency : CurrencyFormat -&gt; Float -&gt; String displayCurrency = ... ... displayCurrency model.currencyFormat value ```
2019-02-14T04:39:29.281700
Lynne
elmlang
general
Thanks, I believe I still need to pass the model to who is using displayCurrency
2019-02-14T04:41:54.282700
Anderson
elmlang
general
Well, it depends on your app structure. The point is you can structure it the way when you pass only relevant data to helper functions
2019-02-14T04:42:56.282900
Lynne
elmlang
general
You can't have global variables, so properly structuring your app is the only way to avoid passing the complete model everywhere
2019-02-14T04:44:09.283100
Lynne
elmlang
general
Unless your format is constant, of course. Then you can just have another module with function returning it
2019-02-14T04:45:01.283300
Lynne
elmlang
general
I am just not used to depends on a main model.
2019-02-14T04:48:26.285000
Anderson
elmlang
general
Thanks for the info.. ill try to pass the correct data in the right function
2019-02-14T04:48:53.286000
Anderson
elmlang
general
I understand that, and, I believe, it is not a super good practice to pass it everywhere as it complicates refactoring
2019-02-14T04:49:05.286200
Lynne
elmlang
general
there is a structure that goes by various names but in essence implies that there is a Context in which things happen. This context data is held in a record or some Custom Type and is passed around.
2019-02-14T04:49:11.286400
Maida
elmlang
general
you can take a look at <https://github.com/ohanhi/elm-shared-state>
2019-02-14T04:51:43.286600
Maida
elmlang
general
for inspiration
2019-02-14T04:51:47.286800
Maida
elmlang
general
in my example I have a Main with Locale that contains { Translations, Formatting }
2019-02-14T04:52:00.287000
Anderson
elmlang
general
ill have a look
2019-02-14T04:52:02.287200
Anderson
elmlang
general
that's was really interesting! thanks! And I believe you can create multiple different sharedState based on the module you are in.
2019-02-14T05:02:59.287500
Anderson
elmlang
general
so you only have the dependencies you need in the right place
2019-02-14T05:03:17.287700
Anderson
elmlang
general
I think the point of SharedState is that it is shared between all modules
2019-02-14T05:03:49.287900
Lynne
elmlang
general
So you should not need different shared states
2019-02-14T05:04:12.288100
Lynne
elmlang
general
Only if your app is split into groups of modules but that's most likely an overkill
2019-02-14T05:04:35.288300
Lynne
elmlang
general
Yes, the idea of the SharedState is that it acts like a context for all the places of the app. You can have partitions within this state that handle various aspects.
2019-02-14T05:15:55.289900
Maida
elmlang
general
Howdy everyone! I wanted to inspect the VirtualDom Kernel code because I am getting it to crash. I would like to make some modifications to it locally in order to fix it. The problem is - I can not find the source code that actually gets compiled. I am using `elm/[email protected]`. In the chromium inspector it shows me the line that crashed to be right below ``` // tag must be 1 or 2 at this point var vKids = vNode.e;```
2019-02-14T05:18:46.291300
Teri
elmlang
general
But in the source code of virtualDominside `~/.elm/___/virtual-dom/1.0.2/` it says ``` // tag must be __2_NODE or __2_KEYED_NODE at this point var vKids = vNode.__kids; ``` And when I try modifying this file it does not arrive in the browser when using elm-make.
2019-02-14T05:20:03.292600
Teri
elmlang
general
While googling for `tag must be 1 or 2 at this point` I only got three hits on google which seems really weird.
2019-02-14T05:20:39.293000
Teri
elmlang
general
the hits on google are the compiled results from elm-make.
2019-02-14T05:21:51.293700
Teri
elmlang
general
It seems like that first excerpt is an optimized version of the second (constants are replaced with values, field name is shortened)
2019-02-14T05:22:30.295100
Lynne
elmlang
general
I grepped everything for the comment that virtualdom is crashing on. I can also confirm that the [email protected] is the one in my elm.json plus the only one installed in the local ~/.elm directory
2019-02-14T05:22:33.295300
Teri
elmlang
general
I was thinking that too - but does it optimize comments?
2019-02-14T05:22:58.295400
Teri
elmlang
general
Well, it depends on the optimizer. It can just replace by regex and don't care if it is comment or not
2019-02-14T05:23:22.295700
Lynne
elmlang
general
I am wondering if the optimized code is cached somewhere.
2019-02-14T05:23:55.295900
Teri
elmlang
general
I am wondering that also
2019-02-14T05:24:05.296200
Lynne
elmlang
general
Because that's what I would need to clear then. I tried clearing `elm-stuff` and also `~/.elm`
2019-02-14T05:24:18.296600
Teri
elmlang
general
<@Teri> maybe there is some minification going on
2019-02-14T05:24:24.297000
Florencia
elmlang
general
That should be enough
2019-02-14T05:24:29.297200
Lynne
elmlang
general
ie. `__kids` -&gt; `e` and `__2_NODE` and `__2_KEYED_NODE` (which are also variable names, not just parts of the comment) -&gt; `1` and `2`?
2019-02-14T05:25:08.298200
Florencia