How do I write a REPL in #fsharp?🤔 Do I need a `while true ...`? Naahh, you can do it with lazy sequences

lamg_dev's tweet image. How do I write a REPL in #fsharp?🤔 Do I need a `while true ...`? Naahh, you can do it with lazy sequences

Sneak peek at my F# DSL for defining fighting-game character states #fsharp #dotnet #gamedev #indiedev #fightinggame

LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame
LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame

The next lab from my tiny systems course is up. Learn how to write your own small implementation of the logic programming language Prolog in #fsharp!

tomaspetricek's tweet image. The next lab from my tiny systems course is up.

Learn how to write your own small implementation of the logic programming language Prolog in #fsharp!

Ahh those were the good ol days #fsharp

rickasaurus's tweet image. Ahh those were the good ol days #fsharp

Here's my (cursory) take on FuncUI, for the 2 #Fsharpdevs who follow me: 1. I love that F# is super expressive and precise with meaning when dealing with components. 2. I'm not for DSL's in C#, but for #AvaloniaUI and #Fsharp it works perfectly in components because no longer…

Mike_Preston17's tweet image. Here's my (cursory) take on FuncUI, for the 2 #Fsharpdevs who follow me:

1. I love that F# is super expressive and precise with meaning when dealing with components.

2. I'm not for DSL's in C#, but for #AvaloniaUI and #Fsharp it works perfectly in components because no longer…
Mike_Preston17's tweet image. Here's my (cursory) take on FuncUI, for the 2 #Fsharpdevs who follow me:

1. I love that F# is super expressive and precise with meaning when dealing with components.

2. I'm not for DSL's in C#, but for #AvaloniaUI and #Fsharp it works perfectly in components because no longer…

#fsharp Hey guys what's your thoughts on F#? I am learning it right now used ionide extension in VS code

coding_theself's tweet image. #fsharp 

Hey guys what's your thoughts on F#?
I am learning it right now

used ionide extension in VS code

Fabulous WIP V3 is looking nice. We will have a new Component base API. #fsharp

edgarfsharp's tweet image. Fabulous WIP V3 is looking nice. We will have a new Component  base API. #fsharp

A simple feedforward neural network implemented in #fsharp

jonas1ara's tweet image. A simple feedforward neural network implemented in #fsharp

Good morning, everyone! For once, it's a day when I can turn to things domestic - there's already a rhubarb crumble baking; and maybe to code, where the latest #fsharp 9 PV has broken my build, meaning major work for an AltCover 9.0 this November.

stevegilham1's tweet image. Good morning, everyone!

For once, it's a day when I can turn to things domestic - there's already a rhubarb crumble baking; and maybe to code, where the latest #fsharp 9 PV has broken my build, meaning major work for an AltCover 9.0 this November.

Arithmetic Expression Tree, #fsharp makes math easy.

jonas1ara's tweet image. Arithmetic Expression Tree, #fsharp makes math easy.

The classic tree traversals in #fsharp: inorder (left-root-right), preorder (root-left-right), and postorder (left-right-root). Pure recursion!

jonas1ara's tweet image. The classic tree traversals in #fsharp: inorder (left-root-right), preorder (root-left-right), and postorder (left-right-root). 

Pure recursion!


Fun.Blazor 4.1.x is released 🎉. And with a fresh new landing page for the doc website 👇 slaveoftime.github.io/Fun.Blazor.Doc… #fsharp #dotnet #blazor


Work for supporting Feliz style output has started in Glutinum! This is not yet available publicly but hopefully, I will be able to soon release something. #fsharp @FableCompiler

MangelMaxime's tweet image. Work for supporting Feliz style output has started in Glutinum! 

This is not yet available publicly but hopefully, I will be able to soon release something.

#fsharp @FableCompiler

SVG support has just been added to Oxpecker.Solid! #fsharp #oxpecker @solid_js

Lanayx's tweet image. SVG support has just been added to Oxpecker.Solid!
#fsharp #oxpecker @solid_js

Fable 5.0.0-alpha.18 released! devtalk.com/t/225022 #Fable #FSharp # #devtalk


Completed "Gift Shop" - Day 2 - Advent of Code 2025 adventofcode.com/2025/day/2 #AdventOfCode #Fsharp This is what my unit tests look like in my local F# project. I'm using xUnit + FsUnit. Really like how it flows.

codewithkv's tweet image. Completed "Gift Shop" - Day 2 - Advent of Code 2025 adventofcode.com/2025/day/2 #AdventOfCode #Fsharp

This is what my unit tests look like in my local F# project. I'm using xUnit + FsUnit.

Really like how it flows.

Today I do have Pomo updates! Rendering a 3D model within the 2D map (no more squares yay!) I took some hard roads on me - isometric staggered map - 2D backgrounds - 3D entities Yet Monogame and F# taking it on like a champ #monogame #fsharp #dotnet #gamedev #buildinpublic


For this year's #fsharp #FsAdvent, I'm announcing a .NET testing library I'm calling DenseCheck. DenseCheck is a systematic alternative to QuickCheck/FsCheck. Like FsCheck, DenseCheck automatically generates values from types - but deterministically! github.com/sgoguen/DenseC…


Why can't some people understand that other people might not want to use Rust? I have had more commercial experience writing #csharp code and never blew up half the internet. Thanks, but I'll try #fsharp when I have the chance.

Why some people just can’t understand that other people might not want to use C? I have had enough commercial experience writing C code. Thanks, I’ll try something else when I have a chance.



No Pomo (real name TBD) updates today, I'm learning a bit of 3D game assets for MonoGame (With F# of course) so, Here's a super simple setup rendering 3D stuff Link in the next post #dotnet #fsharp #monogame #buildinpublic

angel_d_munoz's tweet image. No Pomo (real name TBD) updates today, I'm learning a bit of 3D game assets for MonoGame (With F# of course) so, Here's a super simple setup rendering 3D stuff

Link in the next post

#dotnet #fsharp #monogame #buildinpublic

I just completed "Secret Entrance" - Day 1 - Advent of Code 2025 adventofcode.com/2025/day/1 #AdventOfCode #Fsharp This was pretty fun!


New tale: talesfrom.dev/blog/tdd-speci… in which we explore 3S mnemonic - what does it have with TDD? Why do we often miss the poin of TDD? Why thinking about capabilities might help? #csharp #fsharp #dotnet #java #SoftwareEngineering #dddesign #SoftwareDevelopment #typescript


It is starting to take shape, initial screen loading "lobby" Moving to map with enemy entities and so on. A little bit more of pieces in and getting closer to the point where there's more creative stuff to add than code #dotnet #fsharp #monogame #gamedev #buildinpublic


"When C# gets discriminated unions, then F# becomes even less appealing" and similar statements are naive. It's the other way around: C# getting DUs (or any other feature really) makes #fsharp more relevant and an even better choice than C#.


I like #fsharp too, but also will use #csharp for next project, because fsharp is: - slow for compile, especially when you use a lot of CE - no hot reload for UI work, I end up rebuild my project with 2mins for one line of change - no integration with source generator - AOT sucks


Not a lot of updates, game dev is fun yet tiresome, a lot of changes are non-visual things. In this case I'm starting a really big refactor to move from a singleton "world" into scene-based things, map transitions are still pending. #monogame #fsharp #dotnet


Sneak peek at my F# DSL for defining fighting-game character states #fsharp #dotnet #gamedev #indiedev #fightinggame

LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame
LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame

Opus 4.5 successfully persuaded me not to use Akka.Persistence for versioning / audit-trailing memories in Memorizer v1, opting to just use Postgres for event-sourcing + snapshots instead due to existing constraints + data. Why is this remarkable? Because it was more 1.…



F# 10 enhances functional programming on #dotNET with nullable reference types, optimized equality checks, faster integral ranges, and improved tooling diagnostics. It reinforces F#’s reputation as a concise, reliable, (cont) msft.it/l/6017tXJ7U

dotnet's tweet image. F# 10 enhances functional programming on #dotNET with nullable reference types, optimized equality checks, faster integral ranges, and improved tooling diagnostics. It reinforces F#’s reputation as a concise, reliable, (cont) msft.it/l/6017tXJ7U


#fsharp number 2 in Hacker News!

lamg_dev's tweet image. #fsharp number 2 in Hacker News!

The next lab from my tiny systems course is up. Learn how to write your own small implementation of the logic programming language Prolog in #fsharp!

tomaspetricek's tweet image. The next lab from my tiny systems course is up.

Learn how to write your own small implementation of the logic programming language Prolog in #fsharp!

Really looking forward to fsharpConf 2023. What a lineup! #fsharp

almirmesic's tweet image. Really looking forward to fsharpConf 2023. What a lineup!

#fsharp
almirmesic's tweet image. Really looking forward to fsharpConf 2023. What a lineup!

#fsharp
almirmesic's tweet image. Really looking forward to fsharpConf 2023. What a lineup!

#fsharp

#fsharp Hey guys what's your thoughts on F#? I am learning it right now used ionide extension in VS code

coding_theself's tweet image. #fsharp 

Hey guys what's your thoughts on F#?
I am learning it right now

used ionide extension in VS code

Look, #fsharp folks... I'm trying, ok? It's about evolution.

RickDotNet's tweet image. Look, #fsharp folks... I'm trying, ok? It's about evolution.

Just learned we can make Linux shell scripts with #fsharp

lamg_dev's tweet image. Just learned we can make Linux shell scripts with #fsharp

Ahh those were the good ol days #fsharp

rickasaurus's tweet image. Ahh those were the good ol days #fsharp

The new Fabulous @AvaloniaUI with support Single Project. So no need to maintain 3 different projects :) #fsharp @fsharponline

edgarfsharp's tweet image. The new Fabulous @AvaloniaUI  with support Single Project. So no need to maintain 3 different projects :) #fsharp @fsharponline

Good morning, everyone! For once, it's a day when I can turn to things domestic - there's already a rhubarb crumble baking; and maybe to code, where the latest #fsharp 9 PV has broken my build, meaning major work for an AltCover 9.0 this November.

stevegilham1's tweet image. Good morning, everyone!

For once, it's a day when I can turn to things domestic - there's already a rhubarb crumble baking; and maybe to code, where the latest #fsharp 9 PV has broken my build, meaning major work for an AltCover 9.0 this November.

Teaser: 75x model binding perf improvement is coming to #oxpecker #fsharp

Lanayx's tweet image. Teaser: 75x model binding perf improvement is coming to #oxpecker #fsharp

Sneak peek at my F# DSL for defining fighting-game character states #fsharp #dotnet #gamedev #indiedev #fightinggame

LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame
LucasTeles42's tweet image. Sneak peek at my F# DSL for defining fighting-game character states 

#fsharp #dotnet #gamedev #indiedev #fightinggame

Based on this blog: hamy.xyz/labs/2024-02_f…, I added Fun Blazor for test #fsharp html DSL performance, here is the code repo: github.com/albertwoo/FSha…

slaveoftime1's tweet image. Based on this blog: hamy.xyz/labs/2024-02_f…, I added Fun Blazor for test #fsharp html DSL performance, here is the code repo: github.com/albertwoo/FSha…

#fsharp 8 support in @JetBrainsRider 2023.3 is shaping up great so far!

auduchinok's tweet image. #fsharp 8 support in @JetBrainsRider 2023.3 is shaping up great so far!

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