core.async
Elm
core.async | Elm | |
---|---|---|
9 | 198 | |
1,934 | 7,451 | |
-0.2% | 0.2% | |
5.1 | 5.4 | |
3 months ago | about 2 months ago | |
Clojure | Haskell | |
Eclipse Public License 1.0 | 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.
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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.
core.async
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How to handle concurrency in Clojure with core.async
Hey, how you doing? This article was written right after I had to painstakingly read the clojure.core.async source code in order to finish a task. So, I hope I save you from the same fate as I had 😄.
- Como desenvolvi um backend web em Clojure
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Comparison of manifold and clojure.core.async
It was created by Rich Hickey: https://github.com/clojure/core.async/commit/47b1d24c0291050a1188dbeee2fc9227f694eb3c don't think he's disavowed it lol.
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Sleeping is not the best option
Some time ago we developed some helpers using the capturing notifications strategy to test asynchronous ClojureScript code that was using core.async channels. Have a look at, for instance, the expect-async-message assertion helper in which we use core.async/alts! and core.async/timeout to implement this behaviour. The core.async/alts! function selects the first channel that responds. If that channel is the one the test code was observing we assert that the received message is what we expected. If the channel that responds first is the one generated by core.async/timeout we fail the test. We mentioned these async-test-tools in previous post: Testing Om components with cljs-react-test.
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What is the difference between Manifold and core.async?
Hi there I'm using Clojure almost a year. I've played with both Manifold and core.async a bit but I'm not %100 sure when to use core.async over Manifold or vice versa.
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Rich Hickey – open-source is Not About You
If you're not familiar with lisps in general, it might be hard to grok the differences between lisp-macros (as used in Clojure) and "normal" macros you see in other languages.
But, if you are familiar already, and just wanna see examples of neat macros that makes the API nicer than what a function could provide, here are a few:
- https://github.com/clojure/core.async/blob/master/examples/w...
- https://github.com/weavejester/compojure
- https://github.com/ptaoussanis/timbre
- https://github.com/krisajenkins/yesql
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The Clojure Mindshare (2019)
https://github.com/clojure/core.async
> and with a very poor tooling (lack of IDE's)
Lisps have fantastic support in Emacs and VSCode and are in general simple enough languages that often the heavyweight of an IDE is not needed. But if you want IDEs there are:
- 6 Years of Professional Clojure
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Equivalent of select in core.async?
If you don't want to block the current thread, you can do the looking/waiting on another thread via thread or in a go using alts! .
Elm
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Ludic: New framework for Python with seamless Htmx support
Elm [1] is based on a similar idea. Build your app from pure functions that return HTML tags.
[1] https://elm-lang.org/
- Learning Elm by porting a medium-sized web front end from React (2019)
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Can you make your own JavaScript by implementing ECMAScript standard?
You also wouldn't really be creating your own new programing language. You would be creating something that can run JavaScript by following JavaScript standards and syntax. You might be able to add some non-standard features of your own on top of those standards, or include your own standard library of helpers or utilities, but you can't completely make a new or alternative language and then load it in the browser (or at least not by reimplementing ECMAScript standards... you actually can make your own language that runs within any Javascript enviroment, if you provide an interpreter or compiler that transforms it into valid JS. Some people have done something like this, eg Elm: https://elm-lang.org/).
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What is the best way to present the user the results of Haskell computations?
You should at least have a look at https://elm-lang.org/ it is a pure functional language like Haskell (although with fewer fancy syntax/type classes) but it has some lovely libraries for visualisation and even with plain elm (+ elm-ui) doing string transformations can be easily done.
- Course using F#: Write your own tiny programming system(s)
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Building React Components Using Unions in TypeScript
I get it. However, the whole point of using Unions to narrow your types, ensure only a set of possible scenarios can occur, and only access data of a particular union when it’s safe to do so. That’s some of what pattern matching can provide, and 100% of what using switch statements in TypeScript with their Discriminated Unions can provide. Yes, it’s not 100% exhaustive, but TypeScript is not soundly typed, and even Elm which is still has the same issue TypeScript does: You’re running in JavaScript where anything is possible. So it’s good enough to build with and much better than what you had.
- What's the state of the Elm repo? · Issue #2308 · elm/compiler
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How to render a basic calendar UI in Elm
The beauty of a language like Elm (and other lambda-calculus / functional programming inspired languages) is that there's very little transformation involved in going from an idea to code. And that seems to have a big impact on getting things done.
- Como desenvolvi um backend web em Clojure
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Is it possible to write games like Pac-Man in a functional language?
I think the most fun and approachable way for beginners to build games with functional programming is with Elm [1].
See a few (small, demo) games built by the community in [2] .
Notice Elm has abandoned the FRP approach in favor of Model-View-Update [3].
[1] https://elm-lang.org/
What are some alternatives?
promesa - A promise library & concurrency toolkit for Clojure and ClojureScript.
rescript-compiler - The compiler for ReScript.
cloroutine - Coroutine support for clojure
haskelm - Haskell to Elm translation using Template Haskell. Contains both a library and executable.
zio-schema - Compositional, type-safe schema definitions, which enable auto-derivation of codecs and migrations.
purescript - A strongly-typed language that compiles to JavaScript
lein-ancient - Check your Projects for outdated Dependencies
yew - Rust / Wasm framework for creating reliable and efficient web applications
yesql - A Clojure library for using SQL.
idris - A Dependently Typed Functional Programming Language
shadow-cljs - ClojureScript compilation made easy
reflex - Interactive programs without callbacks or side-effects. Functional Reactive Programming (FRP) uses composable events and time-varying values to describe interactive systems as pure functions. Just like other pure functional code, functional reactive code is easier to get right on the first try, maintain, and reuse.