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11
elmlang
general
`var a = document.createElement("a")` - not in a document, and if you pass it to Elm, it will crash
2019-04-30T03:29:26.211900
Huong
elmlang
general
`a.ownerDocument === document` #badfaith
2019-04-30T03:32:03.212100
Syble
elmlang
general
it depends what you consider what's in a document or not
2019-04-30T03:32:23.212300
Syble
elmlang
general
the a is part of the document, whatever it's inserted in the hierarchy or not
2019-04-30T03:32:47.212500
Syble
elmlang
general
in a document = it appears in the tree as a node
2019-04-30T03:32:48.212700
Huong
elmlang
general
if it appears in the tree, it’s by definition a node of that tree
2019-04-30T03:33:10.212900
Huong
elmlang
general
and the document is not only the tree, I'm being pedantic, so no need to argue more, we're both right in a certain way
2019-04-30T03:34:02.213100
Syble
elmlang
general
If we’re both right, there is ambiguity :smile:
2019-04-30T03:35:53.213300
Huong
elmlang
general
ok, I see your point
2019-04-30T03:36:39.213500
Syble
elmlang
general
:slightly_smiling_face:
2019-04-30T03:36:43.213700
Syble
elmlang
general
So really, I don’t disagree with your interpretation at all, it’s a very sane interpretation that also _just works_. The fact that there are more ways to interpret what an `element` really is, is where things break down.
2019-04-30T03:41:45.213900
Huong
elmlang
general
Actually you convinced me, I remembered they were a way to access nodes that are not children (must be an implementation specific of Expat or something else), but actually it doesn't seem. For the fun: `(new Array(...document.children)).indexOf(a)`
2019-04-30T03:43:54.214300
Syble
elmlang
general
I think we can conclude this with “the DOM is complex, and naming is hard” :smile:
2019-04-30T03:49:44.214500
Huong
elmlang
general
Yes. I don’t know the specifics, but I believe they are published during May.
2019-04-30T03:56:20.214800
Jin
elmlang
general
when changing views in my app (ala spa example), the html and url changes are instant, but the page 'title' (i.e. <title>) is not
2019-04-30T06:52:32.216100
Adrian
elmlang
general
is this a known, random bug or something?
2019-04-30T06:52:41.216400
Adrian
elmlang
general
<@Adrian> if you type `document.title = "hello"` in the console, is it instant then?
2019-04-30T06:56:27.217100
Nana
elmlang
general
nope!
2019-04-30T06:57:33.217300
Adrian
elmlang
general
I didn't think to check that.
2019-04-30T06:57:39.217500
Adrian
elmlang
general
weird, must be a chrome bug or something
2019-04-30T06:57:49.217700
Adrian
elmlang
general
Yay, cannot wait :badger:
2019-04-30T07:16:39.218100
Leeanne
elmlang
general
I'm using <https://package.elm-lang.org/packages/terezka/line-charts/latest/> how do I set the left margin of responsive chart <https://package.elm-lang.org/packages/terezka/line-charts/latest/LineChart-Container#responsive>
2019-04-30T07:33:07.218300
Wendy
elmlang
general
i found way round the problem
2019-04-30T08:03:35.218500
Wendy
elmlang
general
I have passed empty list to attributesHtml = [] in <https://package.elm-lang.org/packages/terezka/line-charts/latest/LineChart-Container#custom>
2019-04-30T08:04:31.218600
Wendy
elmlang
general
is it an error in the documentation?
2019-04-30T08:04:41.218700
Wendy
elmlang
general
<@Francis> if you’re still interested, you can DM me. I’ve got a working POC and it’s not _too bad_. :slightly_smiling_face: I’ll prob try to write up a blog post about it here in a week or two when all the polish is done if I’ve got the extra time.
2019-04-30T09:12:27.219000
Jeanene
elmlang
general
Wondered if anyone here is using elm-markup?
2019-04-30T09:35:30.219700
Carmon
elmlang
general
so you got rid of the `let` :open_mouth:
2019-04-30T09:37:30.219800
Nana
elmlang
general
Yeah, turns out the problem kind of disappears if you wrap it up in a type :smile:
2019-04-30T09:40:23.220000
Huong
elmlang
general
so if I want Watchers to optionally return commands, would you do it like: ``` type Watcher m msg = Watcher (m -&gt; m -&gt; (m, Cmd msg)) ``` or: ``` type Watcher m msg = Watcher (m -&gt; m -&gt; m) | WithCmd (m -&gt; m -&gt; (m, Cmd msg)) ``` ?
2019-04-30T09:51:56.220200
Nana
elmlang
general
I’d go for the former (and do the `Cmd.none`) stuff - handling less cases seems easier
2019-04-30T10:02:22.220500
Huong
elmlang
general
<https://ellie-app.com/5qkP5s2fWmga1> Why does `fooBar` not work?
2019-04-30T10:24:14.220900
Shaina
elmlang
general
the `Foo` type alias is more a constraint than a concrete type. It means "type with at least this field", but that is not enough to actually create a value.
2019-04-30T10:28:49.221900
Virgie
elmlang
general
`fooBar : Bar -&gt; Foo {}` would work, but then that’s just `Bar` really
2019-04-30T10:29:08.222700
Huong
elmlang
general
If you construct a record and you know all the fields, the type signature has to reflect this fact. Since you can’t construct a record with an unknown set of fields, you can’t return an extensible record with an unbound type variable denoting the other fields
2019-04-30T10:31:17.226700
Huong
elmlang
general
I have a tricky riddle for you all to play around and exercise the brains. Given a `button` function accepting a type of a button (like Submit, Cancel or Normal, affecting the visual appearance) and size of a button (like Small, Medium or Large, also affecting the visual appearance), we want to disallow certain combina...
2019-04-30T10:38:32.232400
Audria
elmlang
general
if it doesn’t have to be a compiler error you could force it down to valid states, something like ``` withSize: Size -&gt; Button -&gt; Button withSize size button = if size == Large &amp;&amp; button.style == Normal then { button | size = Medium } else { button | size = size } ```
2019-04-30T10:42:57.234500
Alicia
elmlang
general
<https://ellie-app.com/5qm7FyQYLRpa1>
2019-04-30T10:44:43.234600
Huong
elmlang
general
basically how rtfeldman/elm-css does a lot of seemingly magic tricks
2019-04-30T10:45:52.234800
Huong
elmlang
general
oooo I like it
2019-04-30T10:46:52.235100
Alicia
elmlang
general
disregard what I wrote there and look at <@Huong>’s suggestion in the thread
2019-04-30T10:47:11.235600
Alicia
elmlang
general
we use this in our application for similar purposes, it’s pretty neat. Just be wary of someone writing `foobar : Variation foo` because then that suddenly is allowed everywhere :smile:
2019-04-30T10:47:42.235800
Huong
elmlang
general
<@Huong>, <@Virgie> thank you both :slightly_smiling_face:
2019-04-30T10:49:34.236400
Shaina
elmlang
general
got it working :blush: <https://ellie-app.com/5qmcNqnfkkSa1>
2019-04-30T10:50:40.236500
Nana
elmlang
general
(not exposing `Variation` means that such tomfoolery can only happen in one module, though, so it’s pretty easy to control)
2019-04-30T10:53:38.237000
Huong
elmlang
general
wow, that’s tricky but impressive!
2019-04-30T10:54:32.237200
Audria
elmlang
general
(you don’t _technically_ need `Variation` to hold a `String`, but I find that you’ll need a `variationToSTring` at some point, and that becomes easy to write when it’s already in there :smile: )
2019-04-30T10:56:14.237400
Huong
elmlang
general
<https://ellie-app.com/5qmn89B7BYCa1> for reference
2019-04-30T11:00:19.237600
Huong
elmlang
general
Oh and, just because it’s a fun little extra - with `--optimize`, all the variations compiled to _just a `String`_
2019-04-30T11:04:27.237800
Huong
elmlang
general
so this is a zero-cost abstraction
2019-04-30T11:04:37.238000
Huong
elmlang
general
```var author$project$Main$large = 'large'; var author$project$Main$medium = 'medium'; var author$project$Main$small = 'small';```
2019-04-30T11:05:09.238200
Huong
elmlang
general
(or close to it, since the compiler isn’t quite smart enough to realise that `variationToString` can just disappear altogether, it compiles it down to something like `function (v) { return v; }`
2019-04-30T11:07:38.238400
Huong
elmlang
general
certain minimizers might be able to optimize that away, though
2019-04-30T11:07:53.238600
Huong
elmlang
general
)
2019-04-30T11:08:12.238800
Huong
elmlang
general
This is pure wizardry, absolute madness
2019-04-30T12:16:58.239600
Danika
elmlang
general
Is this hacky, or legit?
2019-04-30T12:18:34.240000
Danika
elmlang
general
Legit, just using the type-checker’s rules for extensible records, and using those as a phantom type
2019-04-30T12:29:05.240200
Huong
elmlang
general
_phantom types_ that was it!
2019-04-30T12:37:46.240600
Danika
elmlang
general
anyone visiting DC in May? Interested in giving a talk?
2019-04-30T14:26:48.241300
Modesto
elmlang
general
Hey out there
2019-04-30T15:18:57.241600
Willodean
elmlang
general
I am having a problem with `elm/time`
2019-04-30T15:19:05.241900
Willodean
elmlang
general
both of these are today `1556570333000` `1556651400000`
2019-04-30T15:19:30.242400
Willodean
elmlang
general
when passed to `toDay` one gives `30` which is correct, and the other gives `29`
2019-04-30T15:19:50.242800
Willodean
elmlang
general
do you specify the correct tz? that'd be my guess
2019-04-30T15:20:49.243100
Fidela
elmlang
general
yes
2019-04-30T15:20:57.243300
Willodean
elmlang
general
same for both
2019-04-30T15:21:00.243500
Willodean
elmlang
general
<@Willodean> I tried it with `new Date(1556570333000)` in the browser console and I too get 29 and 30 :smile:
2019-04-30T15:23:42.244300
Nana
elmlang
general
how odd
2019-04-30T15:24:13.244500
Willodean
elmlang
general
oh interesting
2019-04-30T15:24:20.244700
Willodean
elmlang
general
`new Date(1556570333000)` vs `Date(1556570333000)`
2019-04-30T15:24:31.245200
Willodean
elmlang
general
`new Date(1556570333000)` becomes `Mon Apr 29 2019 22:38:53 GMT+0200`
2019-04-30T15:24:44.245400
Nana
elmlang
general
yes it does
2019-04-30T15:24:50.245600
Willodean
elmlang
general
What package should I be using to make a simple table?
2019-04-30T15:26:16.246600
Glayds
elmlang
general
seems like `Date()` without `new` ignores any arguments and just returns the current time. JS is weird :stuck_out_tongue:
2019-04-30T15:26:44.247000
Nana
elmlang
general
<@Glayds> you can just use `table` `tr` `td` etc. from the `Html` package
2019-04-30T15:27:47.248100
Nana
elmlang
general
yeah, terrible
2019-04-30T15:36:12.248300
Willodean
elmlang
general
when changing the source-directories values in my elm.json file, do I need to do anything to pick up the change or should it just pickup the next time I run “elm-test”?
2019-04-30T17:30:32.249700
Rosette
elmlang
general
I feel like its not finding paths I’ve defined
2019-04-30T17:30:54.250000
Rosette
elmlang
general
I think that should just work
2019-04-30T17:32:24.250200
Virgie
elmlang
general
Sorry this is more of a Css question than an elm one but when using the `table` from the `Html` package, what is a `Css` function that spaces everything out within the table? I've tried `padding` but it just seems to pad the outside margin
2019-04-30T18:51:26.252100
Glayds
elmlang
general
Have you tried flexbox? <https://www.kirupa.com/html5/centering_vertically_horizontally.htm>
2019-04-30T18:54:28.252300
Wenona
elmlang
general
No I haven't I'll check it out thanks!
2019-04-30T19:05:16.252600
Glayds
elmlang
general
I'm writing my first package. For applications, I usually use `npm` to install `elm-format`, `elm-test`, and have custom scripts. I don't see any examples of elm packages with a `package.json`, though. How do people normally run tests on their packages?
2019-04-30T21:20:44.254600
Rico
elmlang
general
people often install elm-format, elm-test and elm globally
2019-04-30T21:24:20.255300
Earlean
elmlang
general
I am using nix for this
2019-04-30T21:36:37.255800
Willodean
elmlang
general
Do you have an example?
2019-04-30T21:45:52.256000
Rico
elmlang
general
I assume you mean this Nix? <https://nixos.org/nix/>
2019-04-30T21:47:44.256200
Rico
elmlang
general
:point_up: this all needs to be a blog post.
2019-04-30T23:43:32.256600
Leoma
elmlang
general
<https://medium.com/@ckoster22/advanced-types-in-elm-phantom-types-808044c5946d> like this one? ^^
2019-05-01T01:02:33.258400
Danika
elmlang
general
How do I change curly braces expansion and brackets expansion for that matter from this to this. I'm talking about VScode
2019-05-01T01:26:04.259100
Lory
elmlang
general
None
2019-05-01T01:26:26.259400
Lory
elmlang
general
Help! Im getting a very strange error
2019-05-01T02:02:41.260700
Isaias
elmlang
general
Oh.. i think i know why...
2019-05-01T02:04:54.261100
Isaias
elmlang
general
Its a compiler bug :hushed:
2019-05-01T02:07:10.261400
Isaias
elmlang
general
Wait, i dont know why!
2019-05-01T02:14:29.261800
Isaias
elmlang
general
"thread blocked indefinitely in mvar operation"
2019-05-01T02:15:07.262300
Isaias
elmlang
general
yeah, that would be a compiler bug. Are you using Elm 0.19?
2019-05-01T02:19:02.263000
Earlean
elmlang
general
Yup
2019-05-01T02:19:06.263200
Isaias
elmlang
general
If i gave you context i would need to give you a 600 line file
2019-05-01T02:20:03.263800
Isaias
elmlang
general
I need to get this done tonight!
2019-05-01T02:25:41.264100
Isaias