For List.collect you can also think of it is as flatMap, or mapMerge. In F# you can flatten/merge lists with List.concat
myList
|> List.map (fun n -> [n; n * 2]) // [[1;2]; [2;4]; [3;6]]
|> List.concat // [1; 2; 2; 4; 3; 6]
13.03.2026 01:49
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GitHub - dbrattli/Fable.Actor: F# Actors for Fable and Beam
F# Actors for Fable and Beam. Contribute to dbrattli/Fable.Actor development by creating an account on GitHub.
The start of a cross-platform Actor library for F# / Fable ✨ Works on .NET, Python, JS and ... BEAM. Single process except BEAM where you get multi-process and supervision. Same code runs everywhere 🤩 #fablecompiler #fsharp github.com/dbrattli/Fab...
12.03.2026 20:12
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RE#: how we built the world's fastest regex engine in F# | ian erik varatalu
RE#: how we built the world's fastest regex engine in F# iev.ee/blog/resharp... #regex #fsharp
05.03.2026 02:15
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Fable · What is Fable?
Merged the docs: fable.io/docs/
05.03.2026 18:38
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Fable v5-rc.2 is out w/beam support 🥳✨#fsharp #fablecompiler
03.03.2026 20:13
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Finally received this book today 🥰 Fable.Python made me a Python expert. Looking forwards to the Fable.Beam journey ✨
03.03.2026 19:45
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Note that there is a bug with the new Beam target and fable-library is unfortunately missing from the bundle. This should be fixed in -rc2 when available. But it will be worth the wait. Fable Beam passes 2241 unit-tests and is surprisingly usable for being a new Fable target 🤩
03.03.2026 19:08
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A lot of the work with the Python target has been to improve Python interop, and also to produce Python code that type checks using static type checkers such as Pyright.
03.03.2026 19:01
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Fable · Announcing Fable 5 Release Candidate
The wait is over! Fable 5 Release Candidate is officially here.
After a year of hard work from the community, we're bringing you:
✨ .NET 10 & F# 10 support
🐍 A massive Python update (now powered by a Rust core & PyPI!)
🌐 Cleaner JS/TS Pojo bindings
fable.io/blog/2026/20...
#fsharp #fablecompiler
03.03.2026 17:18
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Open Source is Not About You
Open Source is Not About You. GitHub Gist: instantly share code, notes, and snippets.
Remember to complete your 2026 open source training. The training is mandatory for everyone who uses open source software gist.github.com/richhickey/1...
22.02.2026 15:32
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I need to double (and tripple) check this but it seems like Giraffe on Beam is faster than .NET. Is it too good to be true? 🙈 At least the Python perf looks to be true 😆 #fsharp #fablecompiler
21.02.2026 22:46
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21.02.2026 10:16
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Timeflies with F# on Fable Beam (Fable v5 teaser) #fsharp #fablecompiler #erlang
21.02.2026 10:15
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Current status is that inital scaffolding in place. 1500 unit-tests passing. That probably took me 3+ years with Fable.Python. Claude Code used 3 days for Fable.Beam 🙈
12.02.2026 08:32
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I want to learn more about the BEAM and OTP and F# is the right tool for making an actor {...} expression ✨
12.02.2026 08:03
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Perhaps not too impressive for now but this shows Giraffe (F#) running on the BEAM (Erlang Runtime) using Fable (WIP) #fablecompiler #fsharp
11.02.2026 20:24
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Try F# for a small project in 2026 #dev #programming #coding 🥳🥂✨💙
01.01.2026 21:09
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