Sergey Tihon's Blog

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

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

• Announcing .NET Core 3 Preview 3
  • .NET Core 3.0 will RTM “in the second half of 2019”
  • First preview of .NET Standard 2.1
  • Docker and cgroup memory limits finally respected
• Call for papers LambdAle 2019 – London – Sept 21
• Lens Generation using TypeShape
• Why to use Ply? (high performance TPL library for F#)
• What IDE actually works with FSI currently?
• Visual Studio 2019 for Mac Preview 3
• Visual Studio 2019 for Mac Preview Release Notes
• Xamarin.Forms 3.6: Visual Has Materialized

Videos & Papers

• Initializing Mutually Referential Abstract Objects: The Value Recursion Challenge – Don Syme (March 2006)

Blogs

• Azure Functions With F# – Aaron Powell
• K-means Using F# – Gaston Verelst
• Comparison of Json.NET, Chiron, and FParsec using discriminated unions, records, and classes – znprojects
• Some performance tricks with .NET strings – Gérald Barré
• Hardware intrinsic in .NET Core 3.0 – Introduction – Fei Peng
• Ignoring Operation Result when using F# async Computation Expression – Bohdan Stupak
• My first F# project – dotnet-sqldb – Daniel Wertheim
• Resources I’ve found useful to get going with F# – Daniel Wertheim
• Async Enumerables with Cancellation  – Julien Couvreur

Open source projects

• ChrisPritchard/FSH – F# Shell with integrated F# scripting. Like Bash or Powershell, but better ’cause F#.

New Releases

• emacs-fsharp-mode 1.9.13
• Logary + Rutta v5-rc.4

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

Previous F# Weekly edition – #9, 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

• What’s new in Visual Studio 2019 RC for F#
• Visual Studio 2019 Release Candidate (RC) now available
• An update to C# versions and C# tooling
• How to port desktop applications to .NET Core 3.0
• What’s New for Xamarin Developers in Visual Studio 2019 Preview 2

Videos

• Don Syme – Keynote – F# Code I Love | Lambda Days 2019
• John Azariah – Empowering the Quantum revolution with Q# | Lambda Days 19
• Hot-reload your UI with F# – Chet Husk

Blogs

• What is a robot? – giuliohome
• JIRA work log API with F# and Azure Functions – Karl Solgård
• Panzer General Domain-Driven Design – Jamie Dixon
• Reactive Marble Testing with Functional Combinators in F# – Stijn Moreels
• K-means Using F# – Gaston Verelst
• .NET Inside Out Part 3 — How to override sealed function in C# – afish
• Is C# a low-level language? – Matt Warren

F# vNext:

• Enable SourceLink for FSharp.Core.pdb
• [WIP, FS-1043] Extension members visible to trait constraints
• F# RFC FS-1067 – Async.Sequential
• Recent language suggestions:
  • Allow undentation for constructors
  • Copy and Update Record Lambdas
  • Allow access to record type constructors in F#
  • Add compiler-known attribute for enforced tail recursion
  • Add a safe stackalloc function that returns a Span
  • Better ToString implementation for Result
  • Underscores in numeric literals after prefix and before suffix
  • Record-like member constraints
  • Option should implement Seq
  • Multiple pattern cases with ‘when’ clauses
  • Allow for pattern matching on anonymous records in a limited context
  • Allow IsByRefLike and IsReadOnly anonymous records

Open source projects

• Microsoft/jupyter-core – Library for writing Jupyter kernels in .NET Core
• PragmaticFlow/NBomber – Very simple load testing framework for Pull and Push scenarios.
• fable-compiler/Fable.JsonProvider – F# JSON Type Provider for Fable
• crowded/ply – High performance (Value)Task computation expressions for F#
• einarwh/escher-workshop – Workshop: Functional geometry with Escher and Elm.

New Releases

• FSharp.Compiler.Service 27.0.1
• WebSharper 4.5.9 (with F# anonymous record support)
• FCSWatch 0.5.0
• Fable.MaterialUI 3.1
• SwaggerProvider 0.10.0-beta05

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

Previous F# Weekly edition – #8, 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

• Fable 2.2 beta has been released with Anonymous record support!
• Paket improved restore time (up to 20x)
• Microsoft.Jupyter.Core Preview
• Announcing .NET Framework 4.8 Early Access Build 3745

Blogs

• Server-side rendering with the SAFE stack – Compositional IT‏
• CNTK 102.5: Visualizing CNTK models with Graphviz and D3 in F# for Jupyter – Ares Lazarus
• Choosing a web framework for F# in 2019 – Nick Fisher
• Building a Game with SignalR and F# – codesuji
• I lost faith in the industry, burned out, but the cult of the tool saved me – Philipp Ranzhin
• TensorFlow.FSharp: TensorFlow API for F# in development – HelpDev

Open source projects

• Fable-Fauna/Fable.Flora – Css theme type provider and tools
• jbeeko/cfworker-hello-world – Hello World Cloudflare Worker implemented in FSharp and completed to JavaScript by Fable. ReadMe.md describes the process.
• bricelam/EFCore.FSharp – Adds F# design-time support to EF Core
• vexx32/PSWordCloud – Create pretty word clouds with PowerShell!
• ninjarobot/FsPdf – Builds PDF’s from pure F# (and needs a more interesting name)

New Releases

• WebSharper 4.5.8.327 released with support FSharp.Core 4.6
• MiniScaffold 0.14.0 is out with latest dotnet core sdk and target runtimes

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

Previous F# Weekly edition – #7, 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

• Visual Studio 2019 Preview 3 with F# performance fixes
• Bolero 0.3 released with HTML template hot reloading
• Fantomas Online was updated to Fantomas 2.9.2
• A GIST of a simple random-access Excel DSL in F#
• Visual Studio 2019 Launch Event
• BenchmarkDotNet Visual Studio Extension

Videos & Slides

• Languages & Runtime: .NET Community Standup – Feb 14, 2019
• All f(by) talks videos are already on our Youtube channel

Blogs

• Vectorize All the Things: Multiply-Add – Natallie Baikevich
• Make FAKE release on git tag – Atle Rudshaug
• F# on Azure — Challenge Yourself – Lena Hall
• Xamarin ❤ F# – Jim Bennett
• F# tip: Tell the user which condition failed  – Christer van der Meeren
• Xamarin Month: Love and Friendship – Luis Matos

Open source projects

• fsprojects/TensorFlow.FSharp – TensorFlow API for F# + Differentiable F# eDSL
• fsprojects/fsharp-language-server – an implementation of the language server protocol using the F# Compiler Service.
• baronfel/Giraffe.HotReload – A Giraffe extension that incorporates FSharp.Compiler.Portacode to enable live-updates
• TheAngryByrd/FsLibLog – FsLibLog is a single file you can copy paste or add through Paket Github dependencies to provide your F# library with a logging abstraction. This is a port of the C# LibLog.
• pauldorehill/MSAL.Fabulous – Example Fabulous app that uses MSAL to authenticate a user on Azure Active Directory
• misterspeedy/StylishFSharp.Corrigenda – Corrections for the Book “Stylish F#” by Kit Eason, Apress, 2018
• ActiveLogin/ActiveLogin.Identity – Parsing and validation of Swedish identities such as Personal Identity Number (svenskt personnummer) in .NET.

New Releases

• CosmoStore v2
• Fabulous v0.32
• Bolero 0.3
• Falanx v0.5.0
• BenchmarkDotNet v0.11.4

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

Previous F# Weekly edition – #6, 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

• Announced Applied F# Challenge
• Visual F#: Locking down Visual Studio 2019 GA
• Visual F#: VS 2019 tooling performance
• Announcing ML.NET 0.10 – Machine Learning for .NET
• F# eXchange 2019 is coming
• Visual Studio 2019 Preview 2 is now available

Videos & Slides

• Scaling Elm / Fable Elmish Application by Kunjan Dalal at #FnConf18
• f(by) 2019 – Mikhail Smal, WEB DEVELOPMENT WITH SAFE STACK
• Learning Machine Learning with .NET, PyTorch and the ONNX Runtime

Blogs

• Submit to the Applied F# Challenge! – Phillip Carter
• F# handling the option type – Gareth Repton
• Why developers should learn F# – Skills Matter
• What is the most underestimated programming language? – Doug Ross
• How to talk to F# developers – Tiffany Vitti
• Sharpen your F#: 5 top talks dedicated to enhancing the F Sharp experience – Sophie Mansfield

Open source projects

• fsprojects/FSharp.UMX – F# units of measure for primitive non-numeric types
• mattstermiller/koffee – Fast, keyboard-driven file explorer
• namigop/tala – Community Edition of WcfStorm.Rest
• giacomociti/iride – F# type provider to create System.Uri properties from IRIs in RDF vocabularies.
• joemphilips/fsharp-bitbankcc – f# api client for bitbank.cc
• ninjarobot/FsPdf – Builds PDF’s from pure F#
• pauldorehill/MSAL.Fabulous – Example Fabulous app that uses MSAL to authenticate a user on Azure Active Directory

New Releases

• Fantomas 2.9.2
• Fabulous 0.31.0
• Ionide 3.33.0
• SchlenkR.FsHttp 0.7.0

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

Previous F# Weekly edition – #5, 2019

Welcome to F# Weekly,

This week’s F# Weekly is sponsored by Compositional IT – Functional First, Cloud Ready solutions. Check out their training and coaching and consultancy offerings including SAFE support, with expert guidance from experienced consultants.

A roundup of F# content from this past week:

News

• Announcing Open Collective for Ionide
• Deploy SAFE to Google Cloud Kubernetes Engine
• Announcing .NET Core 3 Preview 2
• ASP.NET Core updates in .NET Core 3.0 Preview 2
• Announcing .NET Framework 4.8 Early Access Build 3734

Videos & Slides

• Designing Nullable Reference Types in F# – Phillip Carter

Blogs

• CNTK 102: Hidden layers & live progress report widget – Ares Lazarus
• F# 4.6 Introduces Anonymous Record Types – Info Q

Open source projects

• fsprojects/FSharp.Compiler.PortaCode – The PortaCode F# code format and corresponding interpreter. Used by Fabulous and others.
• Zaid-Ajaj/Giraffe.JsonTherapy – Simply extract JSON values from HTTP requests without defining intermediate types or using model binding
• giraffe-fsharp/Giraffe.Swagger – Auto generate an API documentation for Giraffe web applications using Swagger
• Zaid-Ajaj/DustyTables – Thin F# API for SqlClient for easy data access to ms sql server with functional seasoning on top

New Releases

• Ionide 3.32.0

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

Previous F# Weekly edition – #4, 2019

Welcome to F# Weekly,

This week’s F# Weekly is sponsored by Compositional IT – Functional First, Cloud Ready solutions. Check out their training and coaching and consultancy offerings including SAFE support, with expert guidance from experienced consultants.

A roundup of F# content from this past week:

News

• Announcing F# 4.6 Preview
• fuget.org  now shows package *dependents*.  Ever wonder who’s using your library? Now you’ll know!
• F# section was added to Wikipedia Fluent Interfaces page
• An interview with Erik Schierboom
• Super Simple Git Tagging & Releases in Azure DevOps
• Complete boilerplate for Electron apps w/ Fable 2 and Elmish, hot module reloading, time-travel debugging, etc
• .NET Core tooling update for Visual Studio 2019 Preview 2
• Do more with patterns in C# 8.0
• Debugging .NET Apps with Time Travel Debugging (TTD)
• Visual Studio 2019 Preview 2 is now available
• Introducing Uno WebAssembly Projects and Debugging

Videos & Slides

• DIY: Episode 6 – Event Streams, Aggregates and Outro – Roman Sachse
• Introduction to Fable.Remoting @ FSharping meetup, Prague 04.12.2018 – Mikhail Smal

Blogs

• SkyLight: Composable UI Hackery with WPF – Gerard
• Fable 2 Interview with Fable Creator Alfonso García-Caro 
• The Power of F# Discriminated Unions – RecursiveEnigma
• .NET deep learning stack: CNTK 101: Logistic Regression – Ares Lazarus
• [F# Game Tutorial] Game Abstraction – YJ Park
• Panzer General Domain-Driven Design – Jamie Dixon
• Building with FAKE on Azure DevOps – Mark Allibone

F# vNext

• Add Test Cases for FSharp
• Create FS-1067.md – Async.Sequential
• Ionide: Add smart indent support

Open source projects

• gerardtoconnor/Skylight – A composable high level window library for F# and WPF to explore using Computation Expression UI
• enkomio/shed – .NET runtime inspector
• humhei/FCSWatch – Run standard fsharp codes in watch mode
• gusty/FsPad – HTML based pretty print for F# values
• kunjee17/FabScaffold – Scaffold application to get started with Fabulous
• cmeeren/fable-elmish-electron-material-ui-demo – Complete boilerplate for Electron apps using Fable 2 and Elmish with hot module reloading, time-travel debugging, etc.

New Releases

• Bolero 0.2
• vscode fsharp refactor 0.5.5
• WebSharper 4.5.6
• DependentTypes 0.3.0
• SAFE.Template 0.46.0 with .NET Core 2.2

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

Previous F# Weekly edition – #3, 2019

Welcome to F# Weekly,

This week’s F# Weekly is sponsored by Compositional IT – Functional First, Cloud Ready solutions. Check out their training and coaching and consultancy offerings including SAFE support, with expert guidance from experienced consultants.

A roundup of F# content from this past week:

News

• Upcoming and part SAFE events
• What Open Source projects should our scholarship recipient work on?
• Deploy SAFE App to Google Cloud AppEngine
• Alea GPU: GPU Programming with F#
• Performance Profiling in Rider 2018.3. What’s New?
• .NET Microservices v2.2 eBook
• Getting started with ML.Net

Videos & Slides

• Event Sourcing DIY 05 – Testing – Roman Sachse
• A Simple Bid Recommendation Engine Using FParsec and CodeDom – Mariusz Wojcik
• High performance IO with System.IO.Pipelines – Cecil Phillip, dfowler, Rich Lander

Blogs

• Why anyone would bother to learn out-of-demand languages. A case study of the F# community – arttom
• F# and ML.NET Sentiment Analysis – codesuji
• Managed pointers in .NET – Konrad Kokosa
• OpenTracing at Scale in .NET – Austin Parker

Open source projects

• cboudereau/category-theory-for-dotnet-programmers – samples from Bartosz Milewski’s book (Category Theory for Programmers) converted to csharp and fsharp
• ronaldschlenker/FsHttp – A lightweight F# HTTP library.
• DurableFunctions.FSharp – F#-friendly API layer for Azure Durable Functions
• cmeeren/fable-elmish-electron-material-ui-demo – Complete boilerplate for Electron apps using Fable 2 and Elmish with hot module reloading, time-travel debugging, etc.
• rflechner/FunDns – Understanding DNS protocol with F#
• Zaid-Ajaj/Giraffe.GoodRead – Practical dependency injection in Giraffe that gets out of your way
• markpattison/fsharp-monogame – A sample solution using MonoGame with F#, incorporating Paket and FAKE 5.

New Releases

• Fabulous 0.3 with full support for Xamarin.Forms 3.4
• FSharp.Data.SqlClient 2.0.2
• SchlenkR.FsHttp 0.4.1
• WebSharper 4.5.6
• MiniScaffold 0.13.0
• MessagePack.FSharpExtensions 1.4.1
• ILSpy 4.0

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

Previous F# Weekly edition – #2, 2019