Sergey Tihon's Blog

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Introducing .NET 5
• Announcing .NET Core 3.0 Preview 5 with F# REPL
• OpenFsharp CFP is open!
• F#/Giraffe server stub generator was added to openapi-generator
• FsToolkit.ErrorHandling now supports TaskResult
• .NET Core is the Future of .NET 
• Introducing diagnostics improvements in .NET Core 3.0
• Visual Studio 2019 version 16.1 Preview 3
• Announcing the general availability of IntelliCode plus a sneak peek
• Visual Studio 2019 for Mac version 8.1 Preview 1
• Visual Studio Container Tools Extension (Preview) Announcement
• Intelligent Productivity and Collaboration, from Anywhere (VS Online)
• Microsoft launches Visual Studio Online, an online code editor
• Announcing WSL 2
• Introducing GitHub Package Registry

ML.NET 1.0

• Announcing ML.NET 1.0
• What is ML.NET 1.0 – Machine Learning for .NET
• Automate model training with the ML.NET CLI
• ML.NET Model Builder (Preview)

Videos & Slides

• .NET language panel: see the faces behind C#, F#, and Visual Basic!
• The Future of C# – Mads Torgersen & Dustin Campbell
• .NET Platform Overview and Roadmap – Scott Hunter & Scott Hanselman
• All Microsoft Build 2019 videos
• Building a Compiler with Immo Landwerth:
  • Episode 8 – Lowering
  • Episode 9 – A better REPL
  • Episode 10 – Strings and Types
  • Episode 11 – Function calls

Blogs

• Ionide — Introducing Info Panel – Krzysztof Cieślak
• SQLite Database with Dapper and F# – Logan Mortimer
• Short introduction to Discriminated Unions in F# – Manuel Sidler
• Creating Event-Based Workflows With Azure Durable Functions – Aaron Powell
• .NET Framework Reference Assemblies via NuGet – Stuart Lang

F# vNext:

• [WIP, RFC FS-1072] task and state machine support – state machine compilation of tasks now works
• Type classes in C# 9.0 ?! (maybe)

GitHub projects

• giraffe-fsharp/Giraffe.AzureFunctions – Routing library for Azure Functions
• hodzanassredin/FsForth – Implementation of forth programming language in fsharp for learning purposes.
• microsoft/Terminal – The new Windows Terminal, and the original Windows console host — all in the same place!

New Releases

• MiniScaffold 0.16.1
• Terminal.Gui.Elmish 0.1.3

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

Previous F# Weekly edition – #18, 2019

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• The CFP for #FableConf 2019 Antwerp is open!
• 2019 Board of Trustees Election
• Elmish wrapper with fable-elmish like DSL to build Console/Terminal GUI’s
• Introducing Remote Development for VS Code
  • F# (.NET Core 2.1) Dev Container 
  • SAFE DevContainer definition sample
• Rider 2019.1 RTM (IL Viewer, Solution-wide Rename for F# symbols and more)
• Visual Studio 2019 for Mac version 8.0 (8.0.5.9) – dedicated F# release
• Elmish.Streams replaces Fable/Reaction
• Congrats: IntelliFactory hit 1M+ downloads for Nuget packages
• Apache Software Foundation joins GitHub open source community
• Using .NET and Docker Together – DockerCon 2019 Update

Videos & Slides

• #fsharp #monogame Getting Started with F# And MonoGame. – Dave Thomas (Patreon page)
• FShade Repl – Georg Haaser
• defn #48 David Miller and Clojure on the CLR
• All ML4ALL 2019 Talks are online
• Build an ASP.NET Core Web App with F#? You must be having a Giraffe! – Stuart Lang

Blogs

• [F#] Implementing Coroutines (async/await) using continuations – Mårten Rånge
• Basic Performance Optimization – ₿en Coinobi
• Building a RESTful WebApi with F# and NetCore – Nicola Iarocci
• Microsoft Releases High-Performance C# and F# Support for Apache Spark – Anthony Alford
• F# from a C# Developers Perspective – Part 2 – James
• Fight the global warming: compile your C# apps ahead of time – Michal Strehovský

F# vNext:

• [WIP, RFC FS-1072] task support (early prototype)
• fsharp/emacs-fsharp-mode – Tramp support
• New language sugestions:
  • Support decimals

GitHub projects

• Zaid-Ajaj/Fable.SqlClient – Fable Node client for Microsoft SQL Server, built around a node-mssql binding
• DieselMeister/Terminal.Gui.Elmish – An elmish wrapper around Miguel de Icaza’s ‘Gui.cs’
• ChrisPritchard/fsharp-gamecore – A fleshed out MonoGame core loop, that wraps all the mutable bits and provides hooks to construct a 2D game around.

New Releases

• Fable.SqlClient 1.0
• XPlot v2.0 (netstandard2.0 compliant)
• Microsoft.ML 1.0.0
• MiniScaffold 0.15.0
• TensorFlowSharp 1.13.0

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

Previous F# Weekly edition – #17, 2019

Welcome to F# Weekly,

Level up your team’s F# and get an immediate boost in output with regular coaching sessions. Click here to find out more!

A roundup of F# content from this past week:

News

• .NET for Apache Spark
• Introducing .NET for Apache® Spark™ Preview
• F# .NET Apache Spark Samples
• Microsoft Build 2019 (May 6-8)
• Rider solution-wide rename for F#
• Spark + AI Summit – Developing for the intelligent cloud and intelligent edge
• Last main release of CNTK – 2.7
• April Update for WPF on .NET Core 3.0
• Visual Studio 2019 version 16.1 Preview 2

Videos & Sildes

• Safe Stack – Ryan Kelly

Blogs

• Implementing a functional data streams library using a bunch of one-liners – Mårten Rånge
• F# from a C# Developers Perspective – Part 1 – James Randall
• Refactoring dependencies in F# – Isaac Abraham
• Performance impact of dynamic vs strictly typed language — Javascript vs F# – Kevin Lanthier
• Applied Meta-Programming With Myriad And Falanx – Dave Thomas
• Data analysis using F# and Jupyter notebook – Samuele Resca
• ‘.NET for Apache Spark’ Debuts for C#/F# Big Data – David Ramel
• Running WebAssembly and WASI with .NET – Eric Sink

F# vNext:

• TaskBuilder.fs possible incorporation into FSharp.Core
• New language sugestions:
  • Decorate automatically implemented properties with CompilerGenerated attribute

GitHub projects

• dotnet/spark – .NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.
• websharper-samples/PeopleAPI – A simple WebSharper-based REST API
• giacomociti/iride – SparqlCommand & UriProvider type provider
• evilz/Fable.UserAgentParser – Fabel UserAgent parser
• ericsink/wasm2cil – A “compiler” that can take a WebAssembly/WASI module and convert it to a .NET assembly
• RyanLamansky/dotnet-webassembly – Create, read, modify, write and execute WebAssembly (WASM) files from .NET-based applications.

New Releases

• Orleankka 2.3.1
• Elmish.WPF 2.0

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

Previous F# Weekly edition – #16, 2019

Welcome to F# Weekly,

Fed up of fighting with infrastructure? Find out how to take advantage of Azure’s platform services that let you focus on writing F#.

A roundup of F# content from this past week:

News

• Experimental version of Ionide
• FSharp Roadmap Introductio (Xamarin Roadmap)
• Blazor now in official preview!
• Announcing the .NET Framework 4.8
• Announcing .NET Core 3 Preview 4
• Feedback needed from FSharp.Data.SqlClient users!
• Released Fable.React 5
• SAFE stack is in ThoughtWorks technology radar
• F# Vancouver Meetup
• Functional Web and Mobile Development in F# by Adam Granicz
• Pro .NET Benchmarking by Andrey Akinshin
• A gallery of interesting Jupyter Notebooks
• JetBrains .NET Day Online – A virtual .NET event on Thursday, May 16, 2019

Videos & Sildes

• Clip: F#,C++,Python,Bash,Linux. Ask me questions

Blogs

• Use NuGet 5.0 for lock files – Cameron Taggart
• Implementing fixed point arithmetic in fsharp – Hodza Nassredin
• Automate your .NET versioning with GitVersioning – Cameron Taggart
• Microsoft to Boost F# Machine Learning Functionality – David Ramel

F# vNext:

• FST-1007 Move VisualFSharp repo to the dotnet organization
• VS4Mac: Intellisense does not recognize F# library from C# (fixed in 8.0.5)
• StackOverflow in FSC running in Rider 2019.1 (EAP 4 or later)

GitHub projects

• jimbobbennett/BuildingCrossPlatformMobileAppsWithFabulous – All the content for a talk on building cross-platform mobile apps with Fabulous
• cboudereau/category-theory-for-dotnet-programmers – This repo contains all c++ / haskell samples from Bartosz Milewski’s book (Category Theory for Programmers) converted to csharp and fsharp
• fable-compiler/Fable.RegexProvider – Simple Safe Regex Provider compatible with Fable
• dbrattli/sphinxcontrib-fsharp – Sphinx extension to document F# libraries

New Releases

• FSharp.Formatting 3.1.0
• FsLexYacc 9.0.2
• Npgsql.FSharp v1.9.0
• FsCheck 2.14.0

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

Previous F# Weekly edition – #15, 2019

Welcome to F# Weekly,

Take advantage of F# across .NET Core and the browser with SAFE Stack – kick start your project with some support or training!

A roundup of F# content from this past week:

News

• New Hedgehog website
• Bolero 0.4 released with remote authentication
• FsToolkit.ErrorHandling and Cvdm.ErrorHandling is now merged
• 3D Graphics Programming and Game Development in F#
• Fun 3D – F# 3D drawing in browser
• F# CNTK: Variational autoencoder example – generate MNIST digits from 2D latent space.
• ASP​.NET Core 3.0 has had a+30% performance improvement in the last 2 months alone!
• Unit Testing Improvements in Rider 2019.1
• Code Coverage on macOS and Linux in Rider 2019.1
• Refreshing the VS Code product icon

Videos & Sildes

• Towards F# 5.0 – Don Syme
• Park Bench Panel hosted by Don Syme
• Solving 3D Problems With F# – Olya Samusik

Blogs

• Cross-platform development with .NET Core and F# – Marnee Dearman
• (Follow-up to) Attracting more developers to F# – Eric Sink
• Beginning F# – Fernando Rodriguez
• Testing Giraffe with Microsoft.AspNetCore.TestHost – Jakub Jareš
• Easy cli’s with F#, Argu and dotnet tools – Chester Burbidge
• From Haskell to F# – giuliohome
• F# 4.6 Released with Anonymous Records, Improved Performance – InfoQ
• Microsoft Aims F# at Machine Learning – David Ramel

F# vNext:

• Reactive approach to FSAC design (discussion)
• New language suggestions:
  • Change all links of “Archived UserVoice comments” in migrated issues to point to the commit before archive deletion instead
  • Allow attributes before the `and` keyword
  • Mutable contents in Anonymous Records

GitHub projects

• crowded/ply – High performance (Value)Task computation expressions for F#
• Memorix101/space_invaders_project – MonoGame DesktopGL for Windows, Mac and Linux in F#
• mikhailshilkov/pulumi-fsharp – Very experimental PoC of running Pulumi as F# CEs
• tonyx/orderssystem – a system for automate the ordering process in restaurants
• JordanMarr/FsharpChess – Chess with an F# domain engine and a simple WPF UI.

New Releases

• Ply 0.1.3
• FcsWatch 0.7.0
• Bolero 0.4
• MiniScaffold 0.14.1
• WebSharper 4.5.11

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

Previous F# Weekly edition – #14, 2019

Welcome to F# Weekly,

F# developers earn more. Boost your career prospects with some regular coaching from experts.

A roundup of F# content from this past week:

News

• Announcing F# 4.6
• SAFE Stack is now v1.0!
• Announcing fable-compiler 2.2, Fable.Core 3 and more
• Announcing ML.NET 1.0 RC – Machine Learning for .NET
• Saturn: Add routing diagnostic page
• Visual Studio 2019: Code faster. Work smarter. Create the future.
• Visual Studio 2019 .NET productivity
• Live Share now included with Visual Studio 2019
• Visual Studio 2019 for Mac is now available
• Introducing Time Travel Debugging for Visual Studio Enterprise 2019
• Little great things about Visual Studio 2019
• Rider: Profiling Mono and Mono Unity Apps on Windows, macOS, and Linux
• .NET Standard 2.1 Preview APIs

Videos & F# eXchange 2019

• The Functional Programmer’s Toolkit – Scott Wlaschin
• Keynote: Why F# Changes Lives – Kit Eason
• F#: Write Once, Run (nearly) Anywhere! – Tomasz Heimowski
• A Fable about Fish – Einar Høst
• Communication Strategies with Programming – Alfonso Garcia-Caro
• Functions as Interfaces: Extend Everything! – Erik Novales
• Do-It-Yourself: Event-Sourcing – Roman Sachse
• Build Cross-Platform Mobile Apps Using Fabulous – Jim Bennett
• Simulating Charles Babbage’s Analytical Engine in F# – John Stovin
• From Concept to Creation in a Week with Fabulous – Kunjan Dalal
• Reinventing MVC pattern for Web Programming with F# – Krzysztof Cieślak
• Dungeons, Dragons and Functions – Mathias Brandewinder
• Lightning Talk: Powerline Oriented Programming -Dennis Grimminck
• Lightning Talk: Let’s talk about Types – Rumyana Neykova
• Lightning Talk: Sneaking F# into your Organization – Roman Provazník
• Lightning Talk: Cloud Infrastructure as F# – Mikhail Shilkov
• Lightning Talk: Build an ASP.NET Core Web App with F#? You must be having a Giraffe! – Stuart Lang
• Lightning Talk: JSON (de)serialization in F# – Vladimir Sapronov
• Lightning Talk: How To Give Amazing Technical Presentations – Gina Marie Maini
• Keynote: Probabilistic Programming: The What, Why and How  – Maria Gorinova
• Keynote: The Bottom of the Iceberg: Enabling Data Science Research with F# – Evelina Gabasova
• Durable F#unctions  – Mikhail Shilkov
• How F# helped us build a more Robust Application – Rune Ibsen
• Taming Types in the Cloud – Isaac Abraham
• Ask Not What Government Can Do For Tech – Gina Marie Maini
• F# and GraphQL – How We Did It  – Bartosz Sypytkowski
• F# SAFE Stack: Current State – Tomasz Heimowski

Blogs

• Easy cli’s with F#, Argu and dotnet tools – Chester Burbidge
• Comparison of Json.NET, Chiron, and FParsec using discriminated unions, records, and classes – znprojects
• GraphQL in F# with FSharp.Data.GraphQL –  Ismael Carlos Velten
• Nullable Reference Types in F# 5 – Jonathan Allen
• Compiling F# scripts with Fable 2.2 – Florian Verdonck
• Beginning F# – Fernando Rodriguez
• Attracting more developers to F# – Eric Sink
• How to Beat Array Iteration Performance with Parallelism in C# .NET – Michael Shpilt

F# vNext:

• FsAutoComplete or LSP?
• New language suggestions:
  • attribute enforcing explicit matching of DU cases

New Releases

• Paket 5.200 with support for .NET Standard 2.1 and .NET Core 3.0
• BenchmarkDotNet v0.11.5
• Orleankka 2.3.1
• Expecto 8.10.0
• VS Code March 2019

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

Previous F# Weekly edition – #13, 2019

Welcome to F# Weekly,

Cloud-ready applications reduce costs and improve time to market. Kick start your team’s knowledge with an intensive training pack!

A roundup of F# content from this past week:

News

• Visual Studio 2019 Launch Event
• Json2FSharp – online type generator
• cs2fs-online – C# to F# transpiler
• AWS Lambda layers with .NET Core
• AWS CDK F# HelloWorld template
• C◦mp◦se NYC 2019 CFP
• Kubernetes 1.14: Production-level support for Windows Nodes, Kubectl Updates, Persistent Local Volumes GA
• Using .NET PInvoke for Linux system functions
• Run static methods from gutter, IL Viewer, install SDKs and more improvements in Rider 2019.1

Videos

• Functional Web Programming in .Net with the SAFE Stack – Anthony Brown
• Hot-reload your UI with F# – Chet Husk
• What it’s like to be an active .NET Developer – On.NET
• ML.NET End-to-End: Wine Regression with Database Data – Jon Wood

Blogs

• Ionide — A New Hope – Krzysztof Cieślak
• An example of state based-testing in F – Mark Seemann
• Querying Last.fm web API with F# – Bohdan Stupak
• Designing Data Objects in C# and F# – Yacoub Massad
• F# Implementation of Scala ZIO – Anthony Lloyd
• Trace .NET Core Applications on Linux with strace – Dave Curylo
• Reducing Cold Start Duration in Azure Functions – Mikhail Shilkov

F# vNext:

• General inlining of tail calls
• New language suggestions:
  • Allow typeof<Module> or something equivalent
  • Selective Type Provider Error Highlighting
  • Anonymous DUs
  • Shorthand syntax for single case DUs

Open source projects

• giuliohome/TaglessFinal – F# version of Tagless Final Encoding in Haskell
• aaronpowell/DisappointinglyAttributed – Express just how dissapointed you are with others code through attributes!
• BlythMeister/PaketSorter – Paket Dependency & Reference Sorter

New Releases

• Orleankka 2.3.0

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

Previous F# Weekly edition – #12, 2019

Welcome to F# Weekly,

Level up your team’s F# and get an immediate boost in output with regular coaching sessions. Click here to find out more!

A roundup of F# content from this past week:

News

• Announcing Amazon.Lambda.RuntimeSupport (with F# templates)
• Forge 3.0 Infrastructure
• Blazor 0.9.0 experimental release now available
• Achieve More with Microsoft Game Stack
• Introduction to gRPC on ASP.NET Core
• Visual Studio 2019 for Mac version 8.0 Preview 4 (8.0.0.2931)
• FlexSearch – Flexible & Fast .net Search Engine

Videos

• Blazor, a new framework for browser-based .NET apps – Steve Sanderson
• Interview with Jon Galloway – Executive Director of the .NET Foundation
• Lambda3 Podcast 134 – F#
• Countdown for Microsoft Build: Coffee

Blogs

• F# for JS Devs – Jason
• Non-idiomatic F# – Eric Sink
• Microservices to Workflows: Expressing Business Flows using an F# DSL – James Novino
• Working with Fabulous for Xamarin.Forms – Ares Lazarus
• The programmer as decision maker – Mark Seemann
• .NET Internals Cookbook Part 5 — Methods, parameters, modifiers  – afish
• Profiling .NET Code with PerfView and visualizing it with speedscope.app – Adam Sitnik

F# vNext:

• Epic: Tail calls optimizations (Mono)
• F# RFC FS-1071 – Witness passing for quotations
• Lang suggestion: Discriminate Unions As An API

Open source projects

• giraffe-fsharp/Giraffe.Swagger – Auto generate an API documentation for Giraffe web applications using Swagger
• Dzoukr/CosmoStore – F# Event store for Azure Cosmos DB, Table Storage & Postgres

New Releases

• CosmoStore 2.0.1
• Rider 2019.1 EAP2
• PerfView 2.0.39 Public Release

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

Previous F# Weekly edition – #11, 2019

Welcome to F# Weekly,

Fed up of fighting with infrastructure? Find out how to take advantage of Azure’s platform services that let you focus on writing F#.

A roundup of F# content from this past week:

News

• Bolero: F# in WebAssembly
• Try F# in Wasm
• JetBrains/fsharp-support 2019.1
• Announcing ML.NET 0.11 – Machine Learning for .NET
• Outreachy May 2019 to August 2019 Internships
• C# 8.X Is Introducing Records
• Benchmarks Game: F# .NET Core versus Java fastest programs
• Achieve More with Microsoft Game Stack
• Rider 2019.1 Kicks off its Early Access Program!

Videos & Papers

• .NET Rocks 1626: Functional Web Programming using SAFE with Anthony Brown

Blogs

• Getting wooed by F# – SneakyPeet
• Why you should model your domain with F# – Viktor Andersson
• Exceptions vs the Result type in F# – Daniel Wertheim
• F# for JS Devs – Jason
• Clustering in ML.NET – Jon Woods

F# vNext:

• F# RFC FS-1068 – Open static classes
• F# RFC FS-1069 – Implicit yields
• F# RFC FS-1070 – Offside relaxtions for constructors and members

Open source projects

• jimbobbennett/Awesome-Fabulous – A hand-curated list of awesome resources when using Fabulous

New Releases

• WebSharper 4.5.10
• System.CommandLine.Experimental 0.2.0-alpha.19165.1

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

Previous F# Weekly edition – #10, 2019