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elmlang | general | Lemme see! | 2019-05-01T17:41:00.317500 | Hoa |
elmlang | general | then something like `List.map2 (\small large -> large - small) offsets (List.drop 1 offsets ++ [Bytes.width myBytes]) ` to figure out the sizes of each table | 2019-05-01T17:41:29.318100 | Virgie |
elmlang | general | Indeed I have offset and length for each piece of information | 2019-05-01T17:41:37.318200 | Hoa |
elmlang | general | Looks we have a winner :slightly_smiling_face: Thank you | 2019-05-01T17:43:22.319200 | Hoa |
elmlang | general | Yeah, as long as you have a way of calculating where to start reading (either absolutely by setting `relativeTo = startOfInput` or relatively by using the `position` parser earlier on to get a position you want to use as the relative offset later on), you can use this to run whatever parser you have at that position, and then resume wherever you were before | 2019-05-01T17:43:43.319500 | Huong |
elmlang | general | OK. I think I’m able to go on. Thank you! | 2019-05-01T17:45:20.320700 | Hoa |
elmlang | general | Thanks! I guess this is the downside of "zero config" :face_with_rolling_eyes: | 2019-05-01T17:54:05.320900 | Yahaira |
elmlang | general | Hey folks -- I've built a drag and drop library, primarily for use inside my company. I'd like to be able to generate documentation from the code for others to read. I can't quite figure out how to do that:
- I'd be fine publishing it, but it needs ports for certain touch event compatibility.
- If I make a separate `package` elm.json, there's no way to install it to my projects.
- `elm make --docs` doesn't do anything for `application` types: <https://github.com/elm/compiler/issues/1835>
Is there a canonical way to do this? | 2019-05-01T20:12:13.324100 | Sofia |
elmlang | general | <@Sofia> You're not going to be able to publish anything with ports. You could have an npm package for people to use that they could wire up to ports they define in their applications.
I don't think you can publish `application` types either, but I've never tried. You'd need to pull that code into a separate `library` elm package. | 2019-05-01T20:37:05.325600 | Earnest |
elmlang | general | instead of the contains selector i just went with the full style: `[style="position: fixed; bottom: 0px; right: 6px; border-radius: 4px; background-color: rgb(61, 61, 61); color: white; font-family: monospace; pointer-events: auto; z-index: 2147483647;"]`. i'm sure it's not the most performant css, but it's not a huge deal for this case | 2019-05-01T21:18:06.325800 | Latonya |
elmlang | general | Writing documentation is outlined in the "writing great docs" link in the package directory under "Resources" | 2019-05-02T02:13:42.327800 | Isaias |
elmlang | general | ```
Error: Script terminated by timeout at:
author$project$ShapePoker$easyDecision<@http://localhost:8000/:5104:10
A2@http://localhost:8000/:66:24
analyze@http://localhost:8000/:6168:26
elm$random$Random$map</<@http://localhost:8000/:5779:6
elm$random$Random$map</<@http://localhost:8000/:5775:15
elm$random$Random$map</<@http://localhost:8000/:5775:15
elm$random$Random$map</<@http://localhost:8000/:5775:15
elm$random$Random$step<@http://localhost:8000/:6529:10
A2@http://localhost:8000/:66:24
elm$random$Random$onEffects<@http://localhost:8000/:6538:14
A3@http://localhost:8000/:69:24
loop/<@http://localhost:8000/:2071:7
_Scheduler_step@http://localhost:8000/:1078:13
_Scheduler_enqueue@http://localhost:8000/:1040:3
_Scheduler_rawSend@http://localhost:8000/:986:2
_Platform_dispatchEffects@http://localhost:8000/:2150:3
_Platform_initialize@http://localhost:8000/:1982:2
_Browser_document<@http://localhost:8000/:4012:9
F4/</</</<@http://localhost:8000/:30:33
@http://localhost:8000/:7748:11
``` | 2019-05-02T02:51:53.328000 | Isaias |
elmlang | general | ^ I get this error only after I refresh my app a couple times | 2019-05-02T02:52:46.328900 | Isaias |
elmlang | general | and its a runtime error :confused: | 2019-05-02T02:53:56.329300 | Isaias |
elmlang | general | has anyone else had problems with extensive random use? | 2019-05-02T02:54:33.329800 | Isaias |
elmlang | general | That stack trace looks as if it’s hitting an infinite loop in `easyDecision` - might be worth trying to reproduce it as a fuzz test! | 2019-05-02T02:57:10.330700 | Huong |
elmlang | general | huh, thanks! | 2019-05-02T03:01:13.330900 | Isaias |
elmlang | general | i found it, i was using the random monad wrong mapping 2 generated structures instead of one structure, with 2 values | 2019-05-02T03:23:49.332200 | Isaias |
elmlang | general | it lead to an edge case i was too hasty to deal with rn | 2019-05-02T03:24:12.332700 | Isaias |
elmlang | general | i have a similar problem for completely unrelated reasons now | 2019-05-02T03:25:36.333300 | Isaias |
elmlang | general | ```
Error: Script terminated by timeout at:
_Utils_update@http://localhost:8000/:316:2
author$project$ShapePoker$play</makeDecision<@http://localhost:8000/:6023:13
A2@http://localhost:8000/:66:24
playGame/<@http://localhost:8000/:6125:7
elm$random$Random$andThen</<@http://localhost:8000/:5760:15
elm$random$Random$andThen</<@http://localhost:8000/:5762:12
elm$random$Random$andThen</<@http://localhost:8000/:5762:12
elm$random$Random$map</<@http://localhost:8000/:5776:15
elm$random$Random$map</<@http://localhost:8000/:5776:15
elm$random$Random$map</<@http://localhost:8000/:5776:15
elm$random$Random$map</<@http://localhost:8000/:5776:15
elm$random$Random$step<@http://localhost:8000/:6531:10
A2@http://localhost:8000/:66:24
elm$random$Random$onEffects<@http://localhost:8000/:6540:14
A3@http://localhost:8000/:69:24
loop/<@http://localhost:8000/:2071:7
_Scheduler_step@http://localhost:8000/:1078:13
_Scheduler_enqueue@http://localhost:8000/:1040:3
_Scheduler_rawSend@http://localhost:8000/:986:2
_Platform_dispatchEffects@http://localhost:8000/:2150:3
_Platform_initialize@http://localhost:8000/:1982:2
_Browser_document<@http://localhost:8000/:4012:9
F4/</</</<@http://localhost:8000/:30:33
@http://localhost:8000/:7746:11
``` | 2019-05-02T03:25:44.333600 | Isaias |
elmlang | general | so im continually updating the model with random values, is that a no-no? | 2019-05-02T03:26:08.334200 | Isaias |
elmlang | general | this is for an honors project studying betting btw | 2019-05-02T03:26:56.334700 | Isaias |
elmlang | general | That still looks like a similar issue to me - there’s nothing special about random, and it is, in fact, a rather straightforward module (except for all the math) :smile: My guess would still be an edge-case that’s resulting in some sort of loop within `makeDecision` - is it tail recursive, by any chance? | 2019-05-02T03:31:37.336400 | Huong |
elmlang | general | no, but its called by a function thats randomly recursive, so it could be that my check for stopping isnt quite right, | 2019-05-02T03:32:42.337200 | Isaias |
elmlang | general | right now im trying to monitor the number of recursions but my browser crashed xD | 2019-05-02T03:33:08.337800 | Isaias |
elmlang | general | ahh, yeah, could be that `playGame` is randomly (tail) recursive, indeed! | 2019-05-02T03:36:32.338400 | Huong |
elmlang | general | ok, so it doesnt recurse any more than 6 times | 2019-05-02T03:37:37.339500 | Isaias |
elmlang | general | just empirically determined | 2019-05-02T03:37:45.339800 | Isaias |
elmlang | general | so its not that | 2019-05-02T03:38:37.340100 | Isaias |
elmlang | general | so the structure is i have a generator emit a msg, which in update emits a generator of that same message | 2019-05-02T03:39:42.341000 | Isaias |
elmlang | general | its constantly updating itself with newly generated random values | 2019-05-02T03:40:04.341600 | Isaias |
elmlang | general | can I not have update msg itself all the time? | 2019-05-02T03:40:24.342200 | Isaias |
elmlang | general | oh, so it never actually _stops_ or pauses? | 2019-05-02T03:40:34.342500 | Huong |
elmlang | general | nope, its just supposed to continually compute data, and ideally the renderer will give me analytics about its computational process | 2019-05-02T03:41:13.343800 | Isaias |
elmlang | general | if the dom doesn't stall | 2019-05-02T03:41:28.344300 | Isaias |
elmlang | general | YEah, it’s not getting a chance to render :sweat_smile: | 2019-05-02T03:41:30.344400 | Huong |
elmlang | general | should I intersperse it wiht time breaks? | 2019-05-02T03:41:47.345200 | Isaias |
elmlang | general | `Random` acts as a synchronous effect, basically - it gets the request to generate something random, that’s sent to `update`, and `update` request more random data. There are likely calls happening to schedule a render, but since that function just keeps going, it probably doesn’t get a chance to do so | 2019-05-02T03:42:52.346500 | Huong |
elmlang | general | So yeah, interspersing some `Process.sleep`’s every now and then would definitely help! | 2019-05-02T03:43:17.346900 | Huong |
elmlang | general | oh its synchronous | 2019-05-02T03:43:52.347800 | Isaias |
elmlang | general | how many fps should i give it | 2019-05-02T03:44:39.348900 | Isaias |
elmlang | general | Alternatively, you could decide to manage the `seed` yourself, and use that `Cmd`-less API of `Random` by using `step`, and subscribe to `animationFrame` to sync everything up and do up to 60 “loops”/second. So whenever a `tick` comes in, generate your data, update the seed in the model, and return your `( updatedModel, Cmd.none )` | 2019-05-02T03:44:49.349200 | Huong |
elmlang | general | and i could use a time seed | 2019-05-02T03:45:30.349500 | Isaias |
elmlang | general | I dunno, I want really random randomness for the sake of accuracy in the study | 2019-05-02T03:45:55.350500 | Isaias |
elmlang | general | Yeah, or give yourself some initial random seed through `init` if you’re using `element` or `application` | 2019-05-02T03:45:57.350600 | Huong |
elmlang | general | like if it doesn't behave really randomly than how applicable would my results be? | 2019-05-02T03:46:18.351600 | Isaias |
elmlang | general | `Random.generate` uses `step`, too, and uses the current timestamp as the initial seed | 2019-05-02T03:46:22.351800 | Huong |
elmlang | general | so you’re not losing anything | 2019-05-02T03:46:28.352000 | Huong |
elmlang | general | hm... | 2019-05-02T03:46:33.352200 | Isaias |
elmlang | general | If i switch to a cmd less api i have to rewrite a lot of code too, its like all monads | 2019-05-02T03:47:22.353100 | Isaias |
elmlang | general | as far as randomness of `Random` goes, it uses an implementation of PCG which is prettty good | 2019-05-02T03:47:26.353300 | Huong |
elmlang | general | I don’t think you’ll need to change that much | 2019-05-02T03:47:39.353900 | Huong |
elmlang | general | Isn;t there like a basic monad of no effect? | 2019-05-02T03:47:49.354400 | Isaias |
elmlang | general | only the `Random.generate` call, really - the generators can stay | 2019-05-02T03:47:53.354700 | Huong |
elmlang | general | so rather than ```( model, Random.generate yourGenerator )``` you’d have ```let (generatedVal, seed) = Random.step yourGenerator model.seed in ( { model | val = generatedVal, seed = seed }, Cmd.none )``` | 2019-05-02T03:49:19.356100 | Huong |
elmlang | general | oh right i can still use generators | 2019-05-02T03:49:43.356400 | Isaias |
elmlang | general | yeah that implementation is already abstracted in my code | 2019-05-02T03:50:53.357100 | Isaias |
elmlang | general | can I have an animation subscription with both the time AND the delta? just curious | 2019-05-02T03:53:18.358000 | Isaias |
elmlang | general | I don’t believe so, although getting the delta is easy if you have the time and store the time of the previous go :smile: | 2019-05-02T03:57:30.358500 | Huong |
elmlang | general | <beginner question>when should I use Browser.element vs Browser.document</beginner question> | 2019-05-02T03:58:37.359200 | Isaias |
elmlang | general | yeah that seems like the basic way to do that | 2019-05-02T03:59:14.359800 | Isaias |
elmlang | general | Cant you subscribe to both and have them happen at essentially the same time? | 2019-05-02T03:59:43.360600 | Isaias |
elmlang | general | `document` means you take over the entire DOM: it will bind to the `body` tag and replace all of its contents, and allows you to control the page title | 2019-05-02T04:00:18.361400 | Huong |
elmlang | general | oh right | 2019-05-02T04:01:20.362800 | Isaias |
elmlang | general | Does elm distinguish between animation frame and eg physics update frames | 2019-05-02T04:02:24.364500 | Isaias |
elmlang | general | I think the latter is essentially animation frame delta | 2019-05-02T04:02:39.365100 | Isaias |
elmlang | general | So the levels of control (and complexity) are something like this:
- `main : Html msg` -> allows rendering a static piece of HTML in a single element
- `Browser.sandbox` -> a basic program without effects (no cmds, no subs)
- `Browser.element` -> basic program with effects
- `Browser.document` -> basic program with effects, represents the entire document including title
- `Browser.application` -> the above, + navigation and url control | 2019-05-02T04:02:48.365300 | Huong |
elmlang | general | Why dont they just have like a `Browser.static` instead of changing what main can return | 2019-05-02T04:03:43.366000 | Isaias |
elmlang | general | gradual learning - no need to know about the `Browser` package for the simplest of programs: at that point you’re just writing HTML and some functions to generate that HTML perhaps | 2019-05-02T04:05:23.366900 | Huong |
elmlang | general | Can elm run headlessly? | 2019-05-02T04:05:52.367700 | Isaias |
elmlang | general | so you could start someone of with some exploration in the REPL, then graduate to `main : Html msg` to see something in the browser, then add `Browser` and `sandbox`, etc | 2019-05-02T04:05:55.367800 | Huong |
elmlang | general | yeah, there is `Platform.program` which is like `element` but without `view` | 2019-05-02T04:06:10.368300 | Huong |
elmlang | general | I hugely appreciate how much attention elm gives to the developer experience, pacing, and the like | 2019-05-02T04:06:37.368900 | Isaias |
elmlang | general | in this case though, I'm not sure how much of a learning curve it would be to have a beginner see `main = Browser.static (text "hello world")` versus `main = text "hello world"` | 2019-05-02T04:08:50.370800 | Isaias |
elmlang | general | they already see boilerplate like in the module declaration | 2019-05-02T04:09:16.371500 | Isaias |
elmlang | general | Sure, it’s a small extra step! It’s also a historical thing, too - `program` used to live in `Html`, so `Html.static` would be weird. As a side-advantage, imagine a future world where server-side rendering in Elm becomes a thing - not using the `Browser` package there also makes sense! | 2019-05-02T04:10:22.372800 | Huong |
elmlang | general | yeah it definitely hints at the opportunity to move across other domains, that is why im sort of nitpicking this since i see that it may better organize what main can return to put all frontend output in `Browser` | 2019-05-02T04:12:26.374500 | Isaias |
elmlang | general | but for now, not really a problem | 2019-05-02T04:12:59.374900 | Isaias |
elmlang | general | Yeah, we’ll see how things pan out :slightly_smiling_face: I think the option of using `elm/html` without involving `Browser` etc is pretty sweet, though, I’ve found it a pretty nice path when dealing with students. It wouldn’t be much harder to add `elm/browser` in the mix, but it is another tiny extra distraction :shrug: | 2019-05-02T04:15:08.376900 | Huong |
elmlang | general | you deal with elm students | 2019-05-02T04:18:00.377200 | Isaias |
elmlang | general | what exactly is your role in the elm community? youre on a lot | 2019-05-02T04:19:13.378400 | Isaias |
elmlang | general | Oh, you know, I just hang out on Slack really :sweat_smile: | 2019-05-02T04:19:50.379100 | Huong |
elmlang | general | He is the all-knowing kind oracle :slightly_smiling_face: | 2019-05-02T04:19:54.379300 | Timika |
elmlang | general | <@Timika> that's actually not that far off from my experience | 2019-05-02T04:20:13.379700 | Isaias |
elmlang | general | <@Huong> have you made modules | 2019-05-02T04:20:24.380200 | Isaias |
elmlang | general | Yes every update to a model is a state transition. Reading it back I worded this question rather poorly. Primarily I'm looking for a nice clean way to represent pages without relying on knowledge of the overarching structure, which obscures intent with what I consider to be spaghetti code (or perhaps I should say spaghetti dependencies, but the effect on a human's ability to reason about code is similar) | 2019-05-02T04:20:31.380400 | Tarsha |
elmlang | general | Oh yeah, I did mean this exactly as I wrote it. :heart: | 2019-05-02T04:20:38.380700 | Timika |
elmlang | general | Sure! <http://package.elm-lang.org|package.elm-lang.org> has a few, and there’s a few 0.18 ones I didn’t upgrade because they weren’t really used by anyone. Also a bunch of tooling (`elm-xref`, `elm-coverage`, `elm-json`) which aren’t exactly modules, but, you know, it’s code either way :smile: | 2019-05-02T04:22:03.380800 | Huong |
elmlang | general | tooling--do you mean in the compiler? | 2019-05-02T04:23:40.381100 | Isaias |
elmlang | general | oh are you zwilias there <@Huong> | 2019-05-02T04:24:20.381300 | Isaias |
elmlang | general | no, external things you can download and use. `elm-xref` finds unused code, `elm-coverage` measures code-coverage for `elm-test` (which I’m also involved with), `elm-json` is the newest in the family and allows dealing with `elm.json` files (i.e. installing/upgrading/removing (test)dependencies, etc) | 2019-05-02T04:25:13.381600 | Huong |
elmlang | general | alm-coverage rocks (just missing the --watch flag though :p) | 2019-05-02T04:25:31.381800 | Syble |
elmlang | general | oh awesome | 2019-05-02T04:25:55.382000 | Isaias |
elmlang | general | <@Syble> oh my, that’s a good one! Feel free to make an issue :smile: | 2019-05-02T04:26:13.382300 | Huong |
elmlang | general | <@Huong> why are you so interested in elm? what makes it worthy of your time? | 2019-05-02T04:27:31.382500 | Isaias |
elmlang | general | question: why is there still unzip if there isnt zip? and: why isnt there zip anymore? | 2019-05-02T04:28:32.383200 | Isaias |
elmlang | general | I like the community and the language, so I got a job which involves Elm. Packages and tools are mostly to scratch my own itches, or because I notice a recurring problem on Slack and get tired of dealing with it :smile: | 2019-05-02T04:28:49.383300 | Huong |
elmlang | general | whats your job | 2019-05-02T04:29:12.383900 | Isaias |
elmlang | general | `unzip` is a little harder to write and for whatever reason (in my experience at least), used slightly more often than `zip`. Writing `List.map2 Tuple.pair` is pretty simple! That said, I don’t know if `unzip` should really be in core :shrug: | 2019-05-02T04:30:41.385700 | Huong |
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