Sergey Tihon's Blog

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Rider: F# support
• Introducing the Half type!
• App Trimming in .NET 5
• Improvements in native code interop in .NET 5.0
• ARM64 Performance in .NET 5
• Customizing Trimming in .NET 5
• .NET CLI Templates in Visual Studio

#fsharp_ukraine conference will be online and free.
The final date is changed on the 28th of October. Also in September, we are going to start interview sessions with speakers.#fsharp #fp #csharp pic.twitter.com/Sp7ZS6PTMD

— Antya Dev (@AntyaDev) August 31, 2020

Videos and Slides

• Event Sourcing for Games Development with Jérémie Chassaing – part 5: F# to PHP & Javascript + Undo
• Learn to code F#! Starting with Hello World! – The Functional Coder
• ASP.NET Community Standup – Aug 25th 2020 – Razor Tooling

Blogs

• SAFE Stack hits v2 – Isaac Abraham
• How to Become an F# Adopter – Part 2 – Isaac Abraham
• How to avoid input lost focus with ListModel WebSharper F# – Kimserey Lam
• Operation-based CRDTs: registers and sets – Bartosz Sypytkowski
• Accessing Config Data in Azure Functions with F# – Darren Hale
• Microsoft: ‘We Are Finished with F# 5’ – VS Magazine
• Functional Programming with AWS CDK – Wojciech Gawroński

F# vNext

• F# Language Suggestions
  • Optimize F# Func binding for static functions
  • Curried static members do not support subsumption on all arguments
  • Consider allowing subsumption flexibility when using a union case
  • Consider allowing subsumption flexibility for subsequent elements of array/list expression
  • Allow inref-argument members to satisfy SRTP constraints
  • Convert between Unit of Measurement by means of conversion expressions
  • Lambda delegates caching
  • Support new CLI type: half type / float16
  • Add a syntax for trait call with concrete type
  • Make it more practical for an API to have type, module and/or union case with the same name
  • Give a constructorless type a private/internal constructor

GitHub projects

• davedawkins/SAFE-template-with-LiteDB – The default SAFE-template (v2) with LiteDB.FSharp

New Releases

• FSharp.Collections.ParallelSeq 1.1.4
• FsToolkit.ErrorHandling 2.0.0-beta001
• Npgsql.FSharp.Analyzer 3.12.1
• Pulsar.Client 1.6.0
• Farmer 1.0.0-rc2

I just pushed Farmer v1.0rc to NuGet. That's it. That's the tweet. #armtemplate @azure #fsharp @dotnet #infrastructureascode cc @_cartermp @adotfrank @AbelSquidHead @shanselman @satya_vel https://t.co/bkqw2R1SNE

— Isaac Abraham (@isaac_abraham) August 30, 2020

That’s all for now. Have a great week.

Previous F# Weekly edition – #35, 2020

 

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• F# 5 update for August
• Announcing .NET 5.0 Preview 8
• New C# Source Generator Samples
• Automatically find latent bugs in your code with .NET 5
• August ML.NET API and Tooling Updates
• ASP.NET Core updates in .NET 5 Preview 8
• Are you GLAD? by Maoni
• FSSF: Suggestions to make the forum more active and popular
• TensorFlow for .NET Release Candidate

It's alive! After a longer break @safe_stack v2 with MAJOR changes has been released. Check out the latest template and docs https://t.co/dhhUHUQqjb #fsharp pic.twitter.com/JNnIdNjT6V

— Tomasz Heimowski (@theimowski) August 27, 2020

Videos and Slides

• F# as a Better Python – Phillip Carter – NDC Oslo 2020
• Desktop Community Standup – August 27th 2020 – WinForms Innovations & XAML tooling updates
• ASP.NET Community Standup – Aug 25th 2020 – Razor Tooling
• Machine Learning Community Standup – August 26th 2020 – Hello World!

Blogs

• Fantomas v4 unleashed – Florian Verdonck
• Keep Up to Date With F#’s Evolution On The Web – Isaac Abraham
• Performance best practices in C# – Kevin Gosse
• Operation based CRDTs: protocol – Bartosz Sypytkowski
• What is RepoDb? – Alican Demirtas

F# vNext

• Switch FSharp.Core.Unit tests to use Xunit
• F# Dugnad Community Cleanup Session: 25th August 2020
• F# Language Suggestions
  • “Most concrete” tiebreaker for generic overloads
  • Consuming classes and Records with init only properties of .net 5.0
  • Add To Record Codegen CLI shape to allow C# 9.0 `with` keyword interop
  • Add `Deconstruct` to Discriminated Unions codegen for smoother C# consumption

GitHub projects

Fantomas 4.0.0 released!https://t.co/YLI2GvnyXP
Read about it on https://t.co/2MYSLmiNo4
//cc @jindraivanek #fsharp pic.twitter.com/3BCMzkALyQ

— Florian Verdonck (@verdonckflorian) August 27, 2020

• fsprojects/awesome-fsharp – A curated list of awesome F# frameworks, libraries, software and resources.
• Zaid-Ajaj/Fable.SimpleHttp – Http with Fable, made simple.

New Releases

• Fantomas 4.0.0
• SAFE.Template 2.0.0
• packet 6.0.0 alpha now support net5.0
• Farmer v0.24
• Fabulous 0.57 with Xamarin.Forms 4.8
• YARP preview 4

Announcing the newly released beta version of RepoDB (v1.12.0-beta1) (https://t.co/HgI6a5C2hm). The releases include various updates, but it mainly address the request of F# community in relation to anonymous invocation and CLIMutable. @Daniel_Tuna @isaac_abraham #fsharp #dotnet

— Michael Camara Pendon (aka Zym) (@mike_pendon) August 28, 2020

That’s all for now. Have a great week.

Previous F# Weekly edition – #34, 2020

 

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Pluralsight: Type-Driven Development: Designing with Types
• F# Lint VS Extensions
• A Deep Dive into How .NET Builds and Ships
• Bring the best of the Web to your .NET desktop applications with WebView2
• F# Core Library Documentation (community edition)
• .NET 5 BCL Nullable annotation progrèss

Alpha release of #fsharp linting for @VisualStudio.
We have live-analysis, rule suppression and code-fixes!

Check it out athttps://t.co/kRydsJJfkd

Source:https://t.co/B0mSlGP4zZ pic.twitter.com/9aVizynZ0k

— Asti (@deviousasti) August 17, 2020

Videos and Slides

• .NET Rocks: F# Update with Philip Carter
• Functional Domain Modelling in F# with Ian Russell
• F# – How to build a realtime themometer with F#, the SAFE-Stack and a RaspberryPi (GrovePi) by Daniel Hardt
• ASP.NET Community Standup – Aug 11th 2020 – Blazor Updates in .NET 5
• .NET Tooling Community Standup – August 20th 2020 – Chat with the NuGet team!

Blogs

• Simple netcore F# app to control Spotify from the terminal on Linux – Marcin Golenia
• First thoughts on Rust vs OCaml – Paul Biggar

F# vNext

• [dotnet/fsharp] Migrate existing NUnit tests to xUnit
• NuGet PRs:
  • Add an entry for (soon to be stable) scripting usages
  • Add FuGet link
• F# Language Suggestions
  • Extend Units of Measure to Unsigned Integers
  • LLVM backend for F#

I sure wish MSFT had decided to invest in F# for deep learning. It's such a great fit

— Jeremy Howard (@jeremyphoward) August 15, 2020

GitHub projects

• mastoj/sweetspot – Sample app using pulumi for infrastructure to set up k8s with linkerd
• deviousasti/fsharp-linting-for-vs – F# Linting For VS
• JordanMarr/Fable.GroupingPanel – An F# computation expression that groups Fable UI data into one or more collapsible panels

FuncUI reached 250 ⭐️s on GitHub 🎉 #fsharp

The community is contributing now more than I am. There are a bunch of cool things in the pipeline for the next versions.

Also mobile support is coming to @AvaloniaUI this fall (IIRC). pic.twitter.com/uqnTorWZrH

— JaggerJo (@JaggerJo1) August 19, 2020

New Releases

• Npgsql.FSharp.Analyzer for VS

Last week was difficult for many in our community, but we think #rustlang will emerge from it stronger than ever! Read about the impact of the Mozilla layoffs and the Core Team’s efforts towards a Rust foundation on our blog: https://t.co/77YGgKnRst

— Rust Language (@rustlang) August 18, 2020

That’s all for now. Have a great week.

Previous F# Weekly edition – #33, 2020

 

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Rider 2020.2: F# support
• Advanced search on NuGet.org
• Cross-Platform Cryptography in .NET Core and .NET 5
• CFP: .NET Conf 2020
• Use Visual Studio in Presentation Mode

Videos and Slides

• Building a Scheme Compiler in F# – Lambdas 4 – iwillspeak
• Curiosidades e atualidades sobre programação funcional e F# – EximiaCo
• F# Eye For the C++ Guy – Jamie Dixon
• ASP.NET Community Standup – Aug 11th 2020 – Blazor Updates in .NET 5
• Languages & Runtime: .NET Community Standup – August 13 2020 – IOT, API Analyzers, Bin Log Reader
• Maoni Stephens
  • .NET GC – part 0
  • .NET GC – part 1
  • .NET GC – part 2
  • .NET GC – part 3
• What is .NET? What’s C# and F#? What’s the .NET Ecosystem? .NET Core Explained, what can .NET build? – Scott Hanselman

Blogs

• Configuration, Secrets and KeyVault with ASP .NET Core – Ryan Palmer
• Understanding F# Type Aliases – Jonathan Channon
• Introduction to Functional Programming in F# – Part 12 – Ian Russell
• Serverless apps on AWS using F# and fable – Chester Burbidge
• Our journey to F#: happy path coding – Urs Enzler
• Our journey to F#: Equality for free – Urs Enzler
• Moving to Functional Thinking – Darren Hale
• Creating F# scripts for SQL data access on Windows .NET Core 3 –  Isaac Abraham

F# vNext

• Merged: [FS-1056] Allow overloads of custom keywords in computation expressions
• F# Language Suggestions
  • may i use known members when constructing a value?
  • Record subtype
  • Possible plain-text formatting improvements
  • Allow implicit conversions for F# intrinsic buffers to span for members and constructors

GitHub projects

• deviousasti/fsharp-worksheet – A spreadsheet-like interactive evaluator for F#
• stathissideris/spec-provider – Infer Clojure specs from sample data. Inspired by F#’s type providers.
• jbeeko/cfworker-web-api – CloudFlare workers in FSharp
• BinaryDefense/BinaryDefense.FSharp.Analyzers – Security analyzers for the FSharp (F#) language

New Releases

• Ionide 4.16.0
• Farmer 0.23

That’s all for now. Have a great week.

Previous F# Weekly edition – #30, 2020

 

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• F# Core Library Documentation (community edition)
• Visual Studio 2019 v16.7 and v16.8 Preview 1 Release Today!
• Visual Studio 2019 for Mac version 8.7 is now available
• Making repeated edits easier with IntelliCode suggestions
• Best practices for regular expressions in .NET
• Learn about the latest .NET Productivity features
• Profiling in Rider
• .NET Foundation Board of Directors Election 2020: Results!
• Announcing ImageSharp 1.0.0

Videos and Slides

• Beginner F#: Gotchas/Things I Wish I Knew – Eji1700
• F# – How to build an Electron Desktop App with the F# SAFE Stack and the ElectronNET-Project – Daniel Hardt
• .NET Conf: Focus on Microservices Videos
• .NET Rocks: OpenSilver with Giovanni Albani
• ASP.NET Community Standup – Aug 4th 2020 – Project Tye Update
• ASP.NET Community Standup – July 28th 2020 – Migrating from Web Forms to Blazor
• Xamarin Community Standup – August 6th 2020 – Xamarin.Forms 4.8 Gradients with Shane

Blogs

• Parsing Yaml Frontmatter in F# – Stuart Grassie
• Exploring the code behind IHttpClientFactory in depth – Andrew Lock
• Configuration, Secrets and KeyVault with ASP .NET Core – Ryan Palmer

F# vNext

• Merged: [RFC FS-1001] String Interpolation
• F# RFCs
  • FS-1068 – Open Type Declaration
  • FS-1087 – Tasks and resumable state machines
  • FS-1088 – (Generic struct type whose fields are all unmanaged types is unmanaged)
• F# Language Suggestions
  • Allow pattern matching for exceptions in match expressions
  • Allow implicit conversions for F# intrinsic buffers to span for members and constructors

GitHub projects

• vsapronov/FSharp.Json – JSON Serialization Library
• Zaid-Ajaj/Npgsql.FSharp – Thin F# wrapper around Npgsql, the PostgreSQL database driver for .NET

New Releases

• FSharp.Formatting.CommandTool 7.2.6
• Terminal.Gui.Elmish 0.1.8
• Hedgehog 0.8.4
• Pulsar.Client 1.5.0
• Snowflaqe v1.8
• Fabulous 0.56.0
• Visual Studio 2019 version 16.7.0

That’s all for now. Have a great week.

Previous F# Weekly edition – #31, 2020

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Call for F# content: .NET Conf 2020 (November 10-12)
• Significant performance difference between OCaml and F#
• Rider Essentials
• Windows Terminal: Implemented support for user provided pixel shaders
• Drawing UI with Xamarin.Forms Shapes and Paths
• Introducing GitHub’s OpenAPI Description
• .NET Foundation “State of the Union”
• .NET Foundation Budget
• Microsoft becomes maintainer of the Windows version of PyTorch

Videos and Slides

• .NET Rocks: The Open Source Ecosystem, .NET Foundation, and Microsoft with Sebastien Lambla
• Event Sourcing for Games Development with Jérémie Chassaing
  • part 1: Introduction
  • part 2: Crazy Coordinates!
  • part 3: Fable
  • part 4: Functional Event Sourcing
• FSC10x – Xamarin University
  • FSC101 – Introduction to F# for C# Programmers
  • FSC102 – Projects in F#
  • FSC103 – Data Structures in F#
  • FSC104 – Partial Application and Pattern Matching
  • FSC105 – Type Providers in F#
• ASP.NET Community Standup – July 28th 2020 – Migrating from Web Forms to Blazor
• On.NET: Packaging and deploying .NET Core for Linux – Part 1
• .NET Conf – Focus on Microservices

Blogs

• Reverse engineering tools for .NET applications – Bartosz Wójcik
• Optical Character Recognition with F# and ML.NET – Mark Farragher
• Writing more succinct C# – in F# (Part 1)! – Isaac Abraham
• Writing more succinct C# – in F# (Part 2)! – Isaac Abraham
• Creating a Functional Wrapper in F# – Justin Hewlett
• Re-discover your inner programmer with F# in three steps – Dalibor Mesarić
• Setting Up a Local Database for Integration Testing in F# with Dapper – Jing Fan
• A different way of thinking about testing: the Property Based Test – Antonio Tammaro

F# vNext

• Enable new language features for F# 5.0
• Net Standard 2.0 only FSharp.Core
• the seperate fsharp.core.optdata files and fsharp.core.sigdata files are no longer necessary
• Optimize reflection of F# types, part 2
• Prevent assignment to literal ILFields

GitHub projects

• dotnet/format – Home for the dotnet-format command
• bleroy/lunr-core – A port of LUNR.js to .NET Core
• UnoSD/Pulumi.FSharp.Extensions – F# computational expressions to reduce boilerplate in Pulumi code
• project-everest/hacl-star – HACL*, a formally verified cryptographic library written in F*
• edgarsanchez/FsBotFrameworkSamples – An F# translation of Bot Framework EchoBot sample
• chriskrycho/dmmf – Implementing Scott Wlaschin’s “Domain Modeling Made Functional” in Rust, Elm, F♯, and ReasonML

New Releases

• FsUnit 4.0.1
• Hedgehog 0.8.4
• Alexa.NET 1.14.0
• Microsoft.IO.RecyclableMemoryStream 1.3.5

That’s all for now. Have a great week.

Previous F# Weekly edition – #30, 2020

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Five years at Microsoft – Phillip Carter
• free-programming-books
• Announcing .NET 5.0 Preview 7
• ASP.NET Core Updates in .NET 5 Preview 7
• Hybrid Blazor apps in the Mobile Blazor Bindings July update
• Windows Server Insiders getting gRPC support in Http.sys

Videos and Slides

• Playing With Data Access Tools In F# – Zaid Ajaj
• .NET Rocks: C# 9 with Mads Torgersen
• ASP.NET Community Standup – July 21st 2020 – Web Tools with Sayed Hashimi
• Desktop: .NET Community Standup – July 23rd 2020 – EF Core 5 updates and WPF Roadmap
• Visual Studio: .NET Community Standup – July 16th 2020 – Where do my bug reports go?
• Brandon Minnick: The Future of Xamarin – mDevCamp 2020 (Day 1)

Blogs

• Farmer: Simpler ARM deployments with Octopus Deploy – Mark HarrisonJuly
• .NET for Beginners – Dustin Moris Gorski
• Creating interactive You Draw bar chart with Compost – Tomas Petricek
• How F# made me appreciate JavaScript – Edgar Rodríguez
• Switching comments from Disqus to utteranc.es and importing to Github with F# – Stuart Grassie
• WTF is a Computation Expression… – Simon Taite
• Our journey to F#: Know your shortcuts – Urs Enzler
• Effect Programming in C# – Eirik Tsarpalis
• Use F# and ML.NET to predict New York taxi fares – Mark Farragher
• Using Turbolinks with the SAFE web stack – Viktor Andersson
• Predict Heart Disease With F# And ML.NET Machine Learning – Mark Farragher
• Understanding F# applicatives and custom operators – Jonathan Channon
• Optical Character Recognition with F# and ML.NET – Mark Farragher
• Writing more succinct C# – in F# (Part 1)! – Isaac Abraham

F# vNext

• Merged: Optimize reflection of F# types

GitHub projects

• fsprojects/awesome-fsharp – A curated list of awesome F# frameworks, libraries, software and resources.
• GDATASoftwareAG/FuncyDown – A simple functional library do create  Markdown files.
• worldbeater/Live.Avalonia – Develop multiplatform .NET Core @AvaloniaUI applications with the live reloading feature enabled, using either @reactiveui and C#, or Avalonia.FuncUI and F# 🔥

New Releases

• WebSharper 4.6.7
• fantomas-tool 4.0.0-beta-001
• AltCover 7.1.782
• FSharpPlus 1.1.3
• FsLibLog 0.5.2
• Myriad.Sdk 0.4.0
• Tye 0.4
• YARP preview 3

That’s all for now. Have a great week.

Previous F# Weekly edition – #29, 2020

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• Performance Improvements in .NET 5
• New experimental Razor editor for Visual Studio
• Marking Windows-only APIs (NET 5 will intrinsically know which APIs only work on Windows)
• ML.NET 1.5.1
• Blazor July 2020 Sprint
• F# Meadow templates
• Speakers announced: .NET Conf (Focus on Microservices)

Videos and Slides

• The Language of the Language: Comparing compiler construction in Clojure and F# – Ramsey Nasser
• Playing With Data Access Tools In F# – Zaid Ajaj
• .NET Rocks:  C# 9 with Mads Torgersen
• On.NET: Reliable Async Systems with Coyote – Part 1
• On.NET: Reliable Async Systems with Coyote – Part 2
• ASP.NET Community Standup – July 14, 2020 – Monitoring with Sourabh Shirhatti
• Visual Studio: .NET Community Standup – July 16th 2020 – Where do my bug reports go?
• Entity Framework: .NET Community Standup – June 24th 2020 – EF Core in Blazor

Blogs

• Making the English Premier League Generator immutable – temporalcohesion
• Introduction to Functional Programming in F# – Part 11 – Ian Russell
• Introduction to Web Programming in F# with Giraffe – Part 1 – Ian Russell
• Our journey to F# – Urs Enzler
  • Our journey to F#: Prolog
  • Our journey to F#: Learning the basics of F#
  • Our journey to F#: Know your shortcuts
  • Our journey to F#: bye-bye fluent syntax
  • Our journey to F#: Relearning using the IDE
• New F# Language Features That Will Improve Your Code – Isaac Abraham
• Understanding F# applicatives and custom operators – Jonathan Channon
• Running for the F# Software Foundation board – Kevin Avignon
• 5 More C# Features That F# Doesn’t Have! – Isaac Abraham
• Make F# play nice with C# Part 2 – how to handle option and nullable mismatch and work with dapper – Marcin Golenia

F# vNext

GitHub projects

• kkokosa/MemoryVisualizer – Visualization of the managed memory
• mdfarragher/DSC-FS – Data Science with F# and ML.NET
• brianberns/AlgEff – Algebraic Effects for F#
• ssiltanen/Fasaani – F# wrapper for Azure Search .NET SDK
• akhansari/FalcoSwagger – Experimental OpenAPI / Swagger implementation for Falco
• edgarsanchez/FsBotFrameworkSamples – An F# translation of Bot Framework EchoBot sample
• edgarsanchez/FsRabbitMQ-Tutorials – F# implementation of RabbitMQ tutorials
• prozacchiwawa/icfp2020-fsharp-starter-pack – ICFP 2020 starter pack for F# using the csharp docker image

New Releases

• Flips 2.0
• Fasaani 1.0.0
• Dapper.FSharp 1.11.1

That’s all for now. Have a great week.

Previous F# Weekly edition – #28, 2020

Welcome to F# Weekly,
A roundup of F# content from this past week:

News

• F# Formatting Extension for VS

Videos and Slides

• ASP.NET Community Standup – July 7, 2020 – FAST Framework
• Languages & Runtime: .NET Community Standup – July 9 2020 – ARM64, Single File, and .NET Standard
• ASP.NET Core Series: Deploying your Microservice to Azure Container Instances
• ASP.NET Core Series: SameSite Cookie Security
• Build 2020 Updates
• CONTRIBUTING TO OSS – SETTING UP NUGET PIPELINE For A FSharp Library Using Github Actions – Rahul Nath

Blogs

• Type-Safe Single Page Apps: F# Vs. TypeScript – Thomas Bandt
• Generating the Premier League Table in F# – temporalcohesion
• F# Kata – Merging Two Lists – Darren Hale
• 5 Features C# Has That F# Doesn’t Have! – Isaac Abraham
• F# and xUnit Class Fixtures – Marnee Dearman

F# vNext

• July(ish) 2020 rollup and plan and checklist
• New language suggestions:
  • Make FSharp.Core nuget package netstandard2.0 only

GitHub projects

• jbtule/OOP-Patterns-in-FSharp – Examples of OOP Patterns implmenented in F#
• efcore/EFCore.FSharp – Adds F# design-time support to EF Core

New Releases

• Flips 1.3.0
• Falco 2.0.0-alpha
• Bolero 0.14
• AltCover.Visualizer global tool release v7.1.780

That’s all for now. Have a great week.

Previous F# Weekly edition – #27, 2020