Elm
reflex
Elm | reflex | |
---|---|---|
213 | 17 | |
7,650 | 1,091 | |
0.2% | -0.2% | |
4.0 | 6.9 | |
12 months ago | about 1 month ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Elm
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How to build a reliable web application with Elm, GraphQL, PostGraphile and PostgreSQL
To do that, we will use the Elm programming language.
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3 Options to Avoid Side-Effects in Web Dev
Use languages that don’t have side-effects; Elm for UI, and Roc for API/CLI.
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Reactivity in Programming
Reactive programming itself is rarely found in pure form. It is often combined with other paradigms. This is how such mixes as Imperative Reactive Programming, Object-Oriented Reactive Programming and Functional Reactive Programming appeared. The latter is the most popular, and the Elm language is considered one of its main representatives.
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Tsonnet #13 - Carets, columns, and clues: adding lexing error tracing
I've drawn inspiration from Elm and the blog post Compiler Errors for Humans -- it is nearly a decade old and still inspiring to read.
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An Ode to TypeScript Enums
When I see this it makes me want to run for ReasonML/ReScript/Elm/PureScript.
Sum types (without payloads on the instances they are effectively enums) should not require a evening filling ceremonial dance event to define.
https://reasonml.github.io/
https://rescript-lang.org/
https://elm-lang.org/
https://www.purescript.org/
(any I forgot?)
It's nice that TS is a strict super set of JS... But that's about the only reason TS is nice. Apart from that the "being a strict super set" hampers TS is a million and one ways.
To my JS is too broken to fix with a strict super set.
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Why I'm leaving Elm (2020)
> It appears the last commits on GitHub are from mid 2024
That's not what I see.
The last commits for elm/compiler were minor fixes in 2023. Last substantial changes were in 2021. See https://github.com/elm/compiler/commits/master/
The last commits for elm/core were in the first months of 2021. See https://github.com/elm/core/commits/master/
> It appears the main developer is working on a new thing?
One of the problems is that the developer said several times, even in a recent interview, that he was still working on elm, with a focus on the long term. He gave a few vague hints about his private roadmap. After 4 years without any real public activity, I find it hard to believe there's some private activity.
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Top FP technologies
Elm
- Run elm and lunarvim in a devcontainer
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TypeScript's Lack of Naming Types and Type Conversion in Angular
Elm, ReScript, F#, Ocaml, Scala… it’s just normal to name your types, then use them places. In fact, you’ll often create the types _before_ the code, even if you’re not really practicing DDD (Domain Driven Design). Yes, you’ll do many after the fact when doing functions, or you start testing things and decide to change your design, and make new types. Either way, it’s just “the norm”. You then do the other norms like “name your function” and “name your variables”. I’m a bit confused why it’s only 2 out of 3 (variables and functions, not types) in this TypeScript Angular project. I’ll have to look at other internal Angular projects and see if it’s common there as well.
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How I host Elm web applications with GitHub Pages
A web application makes use of these same ingredients, i.e. HTML, CSS, and JavaScript, but it uses significantly more JavaScript. As the JavaScript powering your web application grows in size it can bring with it a variety of problems that a few languages, like TypeScript, ReScript, PureScript, and Elm, have attempted to solve. Each of the aforementioned compile to JavaScript languages have their pros and cons but it is beyond the scope of this article to get into those details. Suffice it to say, my preference is Elm. It is also not the goal of this article to convince you to use Elm but only to show you how Elm fits into the flow of creating a web application and hosting it on GitHub Pages. So let's continue by adding Elm to our project.
reflex
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On inheritance and why it's good Rust doesn't have it
There's other people around here who would like to know your opinion about these GUI frameworks! I haven't written a GUI in Rust personally, but my favorite GUI framework is not at all OOP: https://reflex-frp.org/
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Reflex – Web apps in pure Python
Not to be confused with Reflex, allowing web apps in pure Haskell: https://reflex-frp.org/
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Interactive animations
FRP solutions sound very attractive. But reflex seems to be stuck on the outdated GHCJS, and I haven't been able to get it to build. The newer JS output in GHC doesn't yet have DOM support. And even if I used one of those, figuring out how to interact with a LaTeX renderer might be tricky.
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The Quest for the Ultimate GUI Framework
I only have experience using Reflex, which I regard as the main contender for FRP UI libraries in the Haskell sphere. It's got a flashy website, but I think the documentation is a bit disorganized -- it took a long time for me to figure out how to get going with the library (you find some pieces of knowledge scattered here and there, if you look hard enough). My plan was to learn it well enough to onboard other people, but I don't think I could convince anyone who hasn't already decided that they're gonna make UIs in Haskell no matter the required effort.
- Reflex FRP
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Simple GHC stack for a novice
Once someone has spent a bunch of time with Haskell and sees the value, they will find Nix if it makes sense. Maybe they'll want to play with https://reflex-frp.org, or they'll discover they want a better way to package 3rd-party dependencies, or they start using NixOS and want to nix all the things, etc. etc. Or, maybe they'll never find a use for it, and that's okay.
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Building on iPad
Reflex natively supports iOS, along with Android, desktop and web. I would recommend it for functional reactive programming in Haskell: https://reflex-frp.org
- Functional Reactive Programming
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HTML5 Ubuntu App with native component?
It's been awhile since I've tried to get into Ubuntu Touch/Linux mobile development in earnest. I'm currently working on an app using the reflex framework that I hope to eventually target Android, iOS, Desktop, and Linux Mobile.
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Event driven programming in haskell
If you're talking about the current Elm approach, I'm not sure. Otherwise, the paper I linked to notes some of the FRP libraries that existed at the time, some of which are still supported today (like reactive-banana), and otherwise I'd suggest looking at reflex, mentioned in the first post in this thread. I don't think it existed at the time the Elm paper came out.
What are some alternatives?
language-thrift - Haskell parser for the Thrift IDL format.
dunai - Classic FRP, Arrowized FRP, Reactive Programming, and Stream Programming, all via Monadic Stream Functions
idris - A Dependently Typed Functional Programming Language
sodium - Sodium - Functional Reactive Programming (FRP) Library for multiple languages
purescript - A strongly-typed language that compiles to JavaScript
reflex-dom-contrib