workspace stringclasses 4
values | channel stringclasses 4
values | text stringlengths 1 3.93k | ts stringlengths 26 26 | user stringlengths 2 11 |
|---|---|---|---|---|
elmlang | general | that operator is from older versions | 2019-05-13T06:37:58.423400 | Virgie |
elmlang | general | it was removed quite a while ago, I think you can replace it with `field` , so `"keyname" := decoder` becomes `field "keyname" decoder` | 2019-05-13T06:38:54.424600 | Virgie |
elmlang | general | thanks <@Virgie> | 2019-05-13T06:39:01.424700 | John |
elmlang | general | how would you go about implementing preloading images of a view? like, i have a view consisting of a couple of images and i want to display a loader until all images are ready. my first idea would be to base64 encode them and request them via the http package, but maybe there’s a simpler way? | 2019-05-13T11:22:57.427800 | Daryl |
elmlang | general | Any suggestions on post-build i18n libs? Seems like everything I've seen is pre-build setup. | 2019-05-13T11:29:06.428600 | Elliott |
elmlang | general | May help: <https://package.elm-lang.org/packages/krisajenkins/remotedata/latest/RemoteData> | 2019-05-13T11:41:44.428700 | Iona |
elmlang | general | <http://blog.jenkster.com/2016/06/how-elm-slays-a-ui-antipattern.html> | 2019-05-13T11:41:52.428900 | Iona |
elmlang | general | I think christophp/elm-i18n is post-build, but I could be mistaking what the difference between pre and post build i18n is <@Elliott> | 2019-05-13T12:34:18.430300 | Ashton |
elmlang | general | (Is pre-build where the translations are built into the code, and post build where the code loads up translations from data?) | 2019-05-13T12:34:53.430900 | Ashton |
elmlang | general | i’m already using this, maybe to reframe the question: is there a way to track the loading process of images when they are loaded via an image tag, or do i have to manually load them via an http request to get that kind of info | 2019-05-13T12:46:27.431000 | Daryl |
elmlang | general | Not yet AFAIK - although there are some changes coming wrt lazy loading of images that the browser itself will support at the tag level | 2019-05-13T13:01:27.431200 | Iona |
elmlang | general | I wrote an Elm app recently that displays a table of data. A user can filter the table, sort it, etc. It works great. I have a new requirement to make sure that the header of the table is always visible. As the user scrolls the page, the header will move up the page. Once the header hits the top of the page, it will be... | 2019-05-13T14:13:04.435000 | Marcus |
elmlang | general | using `position: sticky` will not work? | 2019-05-13T14:16:35.435100 | Allison |
elmlang | general | This sort of behavior is usually done via CSS, not Elm/JS :slightly_smiling_face: | 2019-05-13T14:19:35.435600 | Carman |
elmlang | general | Yeah, actually, `position: sticky` might so the trick. I'd avoided it in the past due to browser support, but looks like the browsers might have caught up. | 2019-05-13T14:20:30.435800 | Marcus |
elmlang | general | <@Carman> Yea, I was expecting to have to swap a class when the element hit the top of the window, for instance to swap to between `position: relative` and `position: fixed`, or something. | 2019-05-13T14:21:35.436000 | Marcus |
elmlang | general | So, mostly CSS, but with a little JS/Elm in there to apply the correct class. | 2019-05-13T14:21:55.436200 | Marcus |
elmlang | general | it should be ok to use, it’s actually part of bootstrap css | 2019-05-13T14:24:28.436400 | Allison |
elmlang | general | From a member of our team:
1. in order to structurally separate table headers from the content rows, you need to use `table-layout: fixed` mode (<https://developer.mozilla.org/en-US/docs/Web/CSS/table-layout>)
2. your model needs to be in charge of turning `position: sticky` on and off for the table header section
3. ... | 2019-05-13T14:25:06.436600 | Simon |
elmlang | general | Thanks <@Rosaria>. That's awesome information. It sounds like there is a bit of JS/Elm tomfoolery in there to adjust the classes based on scroll position, unless I'm misreading it. | 2019-05-13T14:28:06.436900 | Marcus |
elmlang | general | Yes- we have a fairly robust table control we may be open sourcing at some point - we’ve been dealing with sticky headers, config, filter/sort/URL interactions, expandable rows, etc - happy to give a quick tour sometime | 2019-05-13T14:29:57.437100 | Simon |
elmlang | general | Thanks. Might be good to swap notes. Sounds like you might be farther along than me, but I implemented a bunch of those features in my app too. | 2019-05-13T14:30:50.437300 | Marcus |
elmlang | general | Seems like everyone doing any sort of business app is gonna hit at some point :slightly_smiling_face: | 2019-05-13T14:31:06.437500 | Simon |
elmlang | general | LOL. Yup. Anything with a non-trivial table. | 2019-05-13T14:31:27.437700 | Marcus |
elmlang | general | Also, go bean-town Elm’ers :wink: | 2019-05-13T14:32:08.437900 | Simon |
elmlang | general | even though I’m in the former bean town camp | 2019-05-13T14:32:16.438100 | Simon |
elmlang | general | Once a Bostonian, always a Bostonian. | 2019-05-13T14:40:32.438500 | Marcus |
elmlang | general | Is there an alternatve to --- toString function for 0.19 ? I need to convert some lists to String to display on the page and sometimes I need to do that for a record. The old toString could do that. | 2019-05-13T15:12:03.440100 | Lory |
elmlang | general | Is this to show to users or just for debugging purposes? | 2019-05-13T15:13:05.440700 | Carman |
elmlang | general | You need to write the function yourself if you want to do this in production | 2019-05-13T15:13:18.441400 | Danika |
elmlang | general | for testing, for experimentation | 2019-05-13T15:13:41.441900 | Lory |
elmlang | general | Debug.toString exists | 2019-05-13T15:14:30.442500 | Danika |
elmlang | general | Thanks, I will try that. | 2019-05-13T15:14:49.443100 | Lory |
elmlang | general | you can do it with JS but not with pure Elm | 2019-05-13T18:01:48.443700 | Nana |
elmlang | general | or actually it's possible you could... :thinking_face: | 2019-05-13T18:03:04.443900 | Nana |
elmlang | general | yep! <https://ellie-app.com/5xgqn6L76jya1> | 2019-05-13T18:12:04.446400 | Nana |
elmlang | general | ```
img [ src "<https://placekitten.com/1000/1000>"
, on "load" (Decode.succeed Loaded)
]
[]
``` | 2019-05-13T18:13:21.446600 | Nana |
elmlang | general | is there a way to dump information from `Explore History` via a command in the console? I have some rspec specs that are failing, and I’d like to know the state of the model at a certain time, hopefully with something like a `@page.execute_script("Elm.Main.dump");` | 2019-05-13T18:38:33.447100 | Su |
elmlang | general | I can do this in chrome console
```
$('div:contains("Explore History")').click()
```
but cannot view within rspec/capybara because I think it is opening in a new window | 2019-05-13T18:44:35.447400 | Su |
elmlang | general | why would I see _I cannot find a `Set` constructor:_, even if my file contains `import Set exposing (..)`? | 2019-05-14T01:04:14.448400 | Son |
elmlang | general | oh; I'm trying to use a type at the term level | 2019-05-14T01:05:31.448800 | Son |
elmlang | general | Anyone knows how to prevent default inside an `onKeyDown` subscription. An example would be great. The docs don't have anything on this: <https://package.elm-lang.org/packages/elm/browser/latest/Browser-Events#onKeyDown> | 2019-05-14T01:12:01.450700 | Maxwell |
elmlang | general | Sorry, didn’t have time to try out your API. Do still plan on working on it if something quite similar exists? If yes I’ll try out your API tonight. If no, maybe you’d be interested in modifying your code to work with elm/bytes instead? That seems like a library no one has written yet (and that I have use for) | 2019-05-14T03:32:41.451300 | Jae |
elmlang | general | Yes, because the alternatives are not as complete. Using elm/bytes too could be interesting, actually :thinking_face: | 2019-05-14T03:39:43.451500 | Raylene |
elmlang | general | The `onKeyDown` subscription doesn't support preventDefault. The workaround is to decode the event on the "outermost" element. | 2019-05-14T03:44:03.451700 | Millie |
elmlang | general | <https://package.elm-lang.org/packages/Gizra/elm-keyboard-event/latest/> | 2019-05-14T03:44:06.451900 | Millie |
elmlang | general | Cool, I'll try out your API tonight then | 2019-05-14T03:44:08.452100 | Jae |
elmlang | general | <https://gizra.github.io/elm-keyboard-event/OutermostDiv.html> | 2019-05-14T03:44:20.452300 | Millie |
elmlang | general | <https://github.com/andys8/vim-emulation/blob/91da6521dc9d59858485f9209c79329630ba3470/src/View.elm#L15> | 2019-05-14T03:45:22.452500 | Millie |
elmlang | general | Has anyone had problems with <textarea> in Edge? For me, every time I type a character, the cursor jumps to the start and if I backspace away all the characters, I get this error. I don't have these problems in Chrome or Firefox | 2019-05-14T04:06:38.453900 | Jae |
elmlang | general | It looks like the problem goes away if I assign the text using Html.Attributes.value instead of placing Html.text inside the body of the text area | 2019-05-14T04:21:06.454200 | Jae |
elmlang | general | Yeah, you can’t really set the value of a `textarea` dom node by adding a child-element. Chrome and FF ignore it, Edge errors. `value` is the proper solution :thumbsup: | 2019-05-14T04:27:43.454400 | Huong |
elmlang | general | Hi there. I posted on the beginners group last week but no one could help me. Is there anyone that could please help me with a few issues in my elm app? I am new to elm but the only available dev for this project so if someone with experience can help that would be great. I will pay for your help | 2019-05-14T04:49:27.457300 | Hunter |
elmlang | general | Alright, good to know. This seems to be what elm-ui does for Input.multiline so I've posted a question about it in <#C4F9NBLR1|elm-ui> | 2019-05-14T04:54:52.457600 | Jae |
elmlang | general | Could you post a link to your message in the beginner channel? | 2019-05-14T04:55:38.458000 | Lynne |
elmlang | general | <https://elmlang.slack.com/archives/C192T0Q1E/p1557408090276800> | 2019-05-14T04:56:17.458200 | Hunter |
elmlang | general | Sorry for long waiting time. Personally, I don’t have any experience with that library and hence cannot answer why it behaves like it does. Also, the example you pointed to was not updated to 0.19 version and it may be misleading for you. | 2019-05-14T05:16:00.458500 | Lynne |
elmlang | general | The library itself was but it is not possible to run the example and check what’s going on in there. | 2019-05-14T05:16:47.458700 | Lynne |
elmlang | general | Okay. Is there a 0.19 drop down library that you know works? | 2019-05-14T05:17:06.458900 | Hunter |
elmlang | general | You could help answering you if you created an Ellie app (<https://ellie-app.com/new>) demoing your problem | 2019-05-14T05:17:23.459100 | Lynne |
elmlang | general | I have never used any drop-down library. It is usually easier to do it with regular `Html` module | 2019-05-14T05:17:52.459300 | Lynne |
elmlang | general | Especially if you are beginner, that is a recommended way | 2019-05-14T05:18:01.459500 | Lynne |
elmlang | general | Thanks so much. Is there an example of the html that you can perhaps point me to? | 2019-05-14T05:19:19.459700 | Hunter |
elmlang | general | Emm, I could probably craft something quickly | 2019-05-14T05:20:02.459900 | Lynne |
elmlang | general | wow thanks so much | 2019-05-14T05:23:02.460200 | Hunter |
elmlang | general | <https://ellie-app.com/5xtCS3fZYHPa1> | 2019-05-14T05:25:51.460400 | Lynne |
elmlang | general | Quite an ugly example but demonstrates the purpose :slightly_smiling_face: | 2019-05-14T05:26:01.460600 | Lynne |
elmlang | general | :100: | 2019-05-14T05:26:38.460800 | Hunter |
elmlang | general | If I was writing a real component I would not repeat myself so much but to show how it works it is ok :slightly_smiling_face: | 2019-05-14T05:26:50.461000 | Lynne |
elmlang | general | thanks that makes so much more sense | 2019-05-14T05:26:50.461200 | Hunter |
elmlang | general | <@Millie> Thanks. I could use `onKeyDown` with an input element. Do you know how to prevent default at all? The documentation doesn't have full examples, so I can't piece it together myself. | 2019-05-14T05:59:15.461400 | Maxwell |
elmlang | general | <#C0CJ3SBBM|general> | 2019-05-14T06:06:09.461900 | Maxwell |
elmlang | general | From <https://github.com/andys8/vim-emulation/blob/91da6521dc9d59858485f9209c79329630ba3470/src/View.elm#L15>
I'm trying to understand the following code.
```
onKeyDown : Html.Attribute Msg
onKeyDown =
Decode.field "key" Decode.string
|> Decode.map (\key -> ( KeyDown key, True ))
|> preve... | 2019-05-14T06:06:40.462600 | Maxwell |
elmlang | general | ```
onKeyDown =
Decode.field "key" Decode.string
|> Decode.map (\key -> ( KeyDown key, key == "x" ))
|> preventDefaultOn "keydown"
``` | 2019-05-14T06:07:31.463100 | Maxwell |
elmlang | general | Would that work?
Also, what is `KeyDown key`? | 2019-05-14T06:08:20.463800 | Maxwell |
elmlang | general | KeyDown is a `Msg`: <https://github.com/andys8/vim-emulation/blob/91da6521dc9d59858485f9209c79329630ba3470/src/Model.elm#L47> | 2019-05-14T06:10:51.464600 | Danika |
elmlang | general | I see. | 2019-05-14T06:11:33.465200 | Maxwell |
elmlang | general | Your`key == “x”` seems like it should work, yes | 2019-05-14T06:12:11.465500 | Danika |
elmlang | general | Is that Elm 0.19? | 2019-05-14T06:17:48.466000 | Maxwell |
elmlang | general | I can't find the docs for `Decode.field`. And I don't know if that's 0.18 or 0.19. | 2019-05-14T06:18:48.466800 | Maxwell |
elmlang | general | Basically, I can't understand the whole expression. | 2019-05-14T06:19:11.467100 | Maxwell |
elmlang | general | By the way, I was also looking at the `Html.events` docs searching for an `onKeyDown` to see how a regular keydown event works, but it seems like there is none? | 2019-05-14T06:22:24.471300 | Maxwell |
elmlang | general | <https://package.elm-lang.org/packages/elm/html/latest/Html-Events#preventDefaultOn>
<https://package.elm-lang.org/packages/elm/json/latest/Json-Decode#field>
`preventDefaultOn` needs the name of the event, and a decoder that decodes the event object into `(msg, Bool)`, where the Bool is whether or not to prevent def... | 2019-05-14T06:22:25.471400 | Danika |
elmlang | general | re: no default onKeyDown
> Note: It looks like the spec is moving away from event.keyCode and towards event.key. Once this is supported in more browsers, we may add helpers here for onKeyUp, onKeyDown, onKeyPress, etc. | 2019-05-14T06:23:23.472000 | Danika |
elmlang | general | Hmm, gotcha. | 2019-05-14T06:23:50.472700 | Maxwell |
elmlang | general | Thanks! :handshake: | 2019-05-14T06:24:00.473000 | Maxwell |
elmlang | general | I see some decoders only produce a `Msg`, like:
```
onClick : msg -> Attribute msg
onClick message =
on "click" (Decode.succeed message)
``` | 2019-05-14T06:26:30.476100 | Maxwell |
elmlang | general | Can you help me identify "Msg" there? | 2019-05-14T06:26:52.476700 | Maxwell |
elmlang | general | `message`? | 2019-05-14T06:27:06.476900 | Maxwell |
elmlang | general | Are you familiar with the elm architecture, and using `Msg`s in general? | 2019-05-14T06:27:34.478100 | Danika |
elmlang | general | So, that would be the message I process in my `update` function, correct? | 2019-05-14T06:27:35.478200 | Maxwell |
elmlang | general | <@Maxwell> that means that they don't give any value | 2019-05-14T06:28:13.479600 | Nana |
elmlang | general | ie. `onInput` gives you a string, but onClick is just an event without extra info | 2019-05-14T06:29:03.482100 | Nana |
elmlang | general | In this case, the onClick is a function that takes any message and gives back a `Attribute msg` whenever that element is clicked.
Its intentionally generic because how can anyone know about *your* `Msg` type.
you might do:
```
type Msg
= ButtonClicked
| ...
— somewhere in view
button [ onClick ButtonClicked ] ... | 2019-05-14T06:31:44.485600 | Danika |
elmlang | general | Thank you, again. :+1: | 2019-05-14T06:33:21.486100 | Maxwell |
elmlang | general | No problem (: | 2019-05-14T06:40:07.486700 | Danika |
elmlang | general | Elm 0.19 do not support |> Http.send msg style Http.send command? | 2019-05-14T06:42:21.488700 | Majorie |
elmlang | general | No | 2019-05-14T06:44:05.489300 | Danika |
elmlang | general | By the way, the original example I posted was using `preventDefaultOn`, but if I want also `stopPropagation`, can I use `custom` like this? I'm mostly trying to nail down the syntax.
```
onKeyDown =
Decode.field "key" Decode.string
|> Decode.map
(\key ->
{ message = KeyDow... | 2019-05-14T06:44:20.489600 | Maxwell |
elmlang | general | `True` not `true` but yes that should work | 2019-05-14T06:45:55.490900 | Danika |
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