language-ext
Paket
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language-ext | Paket | |
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41 | 9 | |
6,119 | 1,983 | |
- | 0.8% | |
7.7 | 8.2 | |
about 16 hours ago | 8 days ago | |
C# | F# | |
MIT License | MIT License |
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language-ext
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The Monad Invasion - Part 2: Monads in Action!
You probably noticed that .SetName() returns a Either. You may have come across Unit in libraries like MediatR or Language-Ext. It's a simple construct representing a type with only one possible value. We use it as a placeholder for operations that do not return a value but may return another state. In our example, .SetName() is a Command that does not return a value but may fail. Therefore, the monad Either carries two possible states: Right (without value) or Left (with an Error).
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The Monad Invasion - Part 1: What's a Monad?
Language-Ext is my personal favourite, but it can be a bit overwhelming for beginners due to its extensive feature set
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The combined power of F# and C#
> but I just want something closer to Scala, but for .Net
That's what I'm working toward with my language-ext library [1]. Obviously more support for expression based programming would be welcome (and higher kinds), but you can do a lot with LINQ and a good integrated library surface.
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Option<T> monad for Unity/UniTask
Definitely a fan of option types, I wonder this library has anything over the C# library language-ext which also has an Option type?
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Result pattern: language-ext vs FunctionalExtensions?
Hey, I am considering adopting the Result pattern in my codebase. Wanted to get some opinions from someone who has experience with it: should I start with language-ext or FunctionalExtensions?
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John Carmack on Functional Programming in C++ (2018)
> [1] https://github.com/louthy/language-ext
Cool library. I've had a few of these patterns in my Sasa library for years, but you've taken it to the Haskell extreme! Probably further than most C# developers could stomach. ;-)
You might be interested in checking out the hash array mapped trie from Sasa [1]. It cleverly exploits the CLR's reified generics to unbox the trie at various levels which ends up saving quite a bit of space and indirections, so it performs almost on par with the mutable dictionary.
I had an earlier version that used an outer struct to ensure it's never null, similar to how your collections seem to work, but switched to classes to make it more idiomatic in C#.
I recently started sketching out a Haskell-like generic "Deriving" source generator, contrasted with your domain-specific piecemeal approach, ie. [Record], [Reader], etc. Did you ever try that approach?
[1] https://sourceforge.net/p/sasa/code/ci/default/tree/Sasa.Col...
[2] https://sourceforge.net/p/sasa/code/ci/57417faec5ed442224a0f...
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What C# feature blew your mind when you learned it?
language-ext supports it and it's pretty dang cool.
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Three words.,, => C# Functional Programming is awesome!!! Do you seasoned developers have any war-stories or nightmare stories regarding Functional Programming?
https://github.com/louthy/language-ext Honestly, this is pretty advanced for me, and im still a bit mind-blown looking at it, This is like the experts level library, with all of the methods AND tools to expand and build your own libraries.. While the above one just has the most commonly used It has a pretty cool immutable type generator I want to check out
- Welcome to C# 11
Paket
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The Case for C# and .NET
I'm not sure if it will help in your scenario, but faced with a similar problem (~80 project solution, mixed c#/f#, with varying dependencies), I found success with Paket (https://github.com/fsprojects/Paket)
It is much more prevalent in the f# community (at this point `dotnet restore` is a perfectly fine default until you hit trouble), but isn't limited to just being applied there.
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Introduction to Paket for F#
You can find the official docs here: https://fsprojects.github.io/Paket/
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Scala at Scale at Databricks
Check out https://fsprojects.github.io/Paket/ and https://fake.build/ and https://docs.microsoft.com/en-us/dotnet/fsharp/get-started/get-started-vscode for playing with F#.
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What do you think ASP.NET Core is missing or could do better?
If this would be true, there would be no reason for something like Paket to exist.
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A Brief F# Exploration
I agree with the author about the slow inner loop experience. Recompiling the whole app to see browser changes gets tiring. The .NET team is planning a series of updates to address this in .NET 6. https://github.com/dotnet/core/issues/5510
I also dislike the default workflow for dealing with Nuget forks. I switched to Paket for dependency management which makes this much simpler. https://fsprojects.github.io/Paket/
What are some alternatives?
OneOf - Easy to use F#-like ~discriminated~ unions for C# with exhaustive compile time matching
NuGet - NuGet Gallery is a package repository that powers https://www.nuget.org. Use this repo for reporting NuGet.org issues.
CSharpFunctionalExtensions - Functional extensions for C#
Optional - A robust option type for C#
BaGet - A lightweight NuGet and symbol server
MoreLINQ - Extensions to LINQ to Objects
Curryfy - Provides strongly typed extensions methods for C# delegates to take advantages of functional programming techniques, like currying and partial application.
VisualFSharp - The F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio
csharplang - The official repo for the design of the C# programming language
Sleet - A static nuget feed generator for Azure Storage, AWS S3, and more.
lobster - The Lobster Programming Language
FSharpPlus - Extensions for F#