polysemy
Exercism - Scala Exercises
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polysemy | Exercism - Scala Exercises | |
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7 | 398 | |
1,023 | 7,265 | |
0.5% | 0.4% | |
5.5 | 3.5 | |
about 1 month ago | about 2 months ago | |
Haskell | ||
BSD 3-clause "New" or "Revised" License | - |
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polysemy
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Functional Declarative Design: A Comprehensive Methodology for Statically-Typed Functional Programming Languages
Thirdly, composing arbitrary effects without losing state is really, really difficult. Things are fine when you limit yourself to State and Reader, sure, but once you start with nondeterminism you’ll discover it’s shockingly easy to produce behaviors that are baffling unless you’ve spent a preposterous amount of time thinking about this stuff. (I’ve been bitten in prod by silent state-dropping bugs, and rarely have I been more flummoxed.) Consider this example, which produces silent changes in the semantics of <|> depending on whether you use it inside or outside of a higher-order effect. Every single effect library (besides the still-unreleased eff) gets certain combinations of effects + nondeterminism wrong. You could make the argument that most people don’t use nondeterministic monads, but eDSLs really shine when you have access to them, as you can turn a concrete interpreter to an abstract one fairly easily.
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Introduction to Doctests in Haskell
Looking for a few projects that make use of it, I found accelerate, hawk, polysemy and pretty-simple, so I'll be interested to poke around in their code and see how they have things set up.
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ReaderT pattern is just extensible effects
Right, I think I'll just give it a shot to see. Polysemy is nice but I'm still having trouble getting what I want out of it (which may very well be entirely a fault of my own understanding)
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Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fused-effects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
- Monthly Hask Anything (June 2021)
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Trouble Reinterpreting Higher Order Effects in PolySemy
Looking at the interpreter for Reader might give some clues if this doesn't work. https://github.com/polysemy-research/polysemy/blob/master/src/Polysemy/Reader.hs#L38-L45
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Structuring Code with ZIO & ZLayers
*But I'm not terribly well versed in Scala's other DI offerings. I came from Haskell and didn't find anything in Scala that clicked with me until I found ZIO. It reminded me a lot of my favorite way of writing Haskell programs (https://github.com/polysemy-research/polysemy)—albeit with a completely different implementation.
Exercism - Scala Exercises
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5 Websites to Boost Your Coding and Master Algorithms 🚀
Exercism
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MDN Curriculum
Nice, this reminds me of Exercism, which I wish was more widely known since they seem to be good folks. (disclaimer, I donate to them)
https://exercism.org/
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Do 48 Programming Challenges in 2024 #48in24
Exercism, the free programming learning platform has initiated a challenge named: 48in24.
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I learned* 12 languages in 2023: a retrospective
Last year, Exercism put together the #12in23 challenge. The goal was to learn a new programming language each month throughout the year. I was one of 135 people who completed the challenge, and I learned a lot along the way!
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12in24 - One language a month
The list of languages contains every language on Exercism, excluding ones that I've used before, web languages, or ones that I can't download for some reason.
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Ask HN: Programming Courses for Experienced Coders?
You might like https://exercism.org/
Learning by doing, with the help of mentors. Excellent way to learn a next language (as you are already familiar with the programming concepts).
- Any programs or websites to practice programming?
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Best platform for coding & programming testing everyday to improve coding skills in various language?
Exercism is pretty good for beginners with some programming language, they are open source and worth contributing to.
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Best Codewars for practice which have reflection in Web-Dev job.
Exercism
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Show HN: Open-source tool for creating courses like Duolingo
> it might be more sustainable if courses were stored in a version controllable medium to facilitate multiple collaborators
My initial thought was to actually use GitHub to store the content. Either on Markdown or JSON - to have some version control. I like how Exercism [1] does it. But I thought it would be hard for teachers - unfamiliar with Git - to update lessons.
Then, I thought about implementing a version control system for the project but I felt I was overcomplicating things for an MVP. But I like the idea of having some kind of version control to improve collaboration.
[1] https://exercism.org/
What are some alternatives?
fused-effects - A fast, flexible, fused effect system for Haskell
Rustlings - :crab: Small exercises to get you used to reading and writing Rust code!
purescript - A strongly-typed language that compiles to JavaScript
codewars.com - Issue tracker for Codewars
freer-simple - A friendly effect system for Haskell
devops-exercises - Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions
ast-monad - A library for constructing AST by using do-notation
Scala Exercises - The easy way to learn Scala.
ghc - Mirror of the Glasgow Haskell Compiler. Please submit issues and patches to GHC's Gitlab instance (https://gitlab.haskell.org/ghc/ghc). First time contributors are encouraged to get started with the newcomers info (https://gitlab.haskell.org/ghc/ghc/wikis/contributing).
Demos and Examples in Scala (Chinese) - scala、spark使用过程中,各种测试用例以及相关资料整理
haskell.nix - Alternative Haskell Infrastructure for Nixpkgs
interviews - Everything you need to know to get the job.