Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Congratulations to Fable Community Heroes 2018!
• SAFE template reached 10K downloads on NuGet
• The future of JSON in .NET Core 3.0
• A first look at changes coming in ASP.NET Core 3.0

FableConf / RemmidemmiConf

• User friendly apps start with dev friendly tools – Maxime Mangel (slides)
• Future of web development with F# – Krzysztof Cieślak
• Data visualization with Fable – Evelina Gabasova (slides)
• Build a game with Fable in 45 minutes – Tomasz Heimowski
• Azure Functions, Microsoft’s Glue in Serverless Architectures – Jan Fellien
• Offline Progressive Web Apps with PouchDB – François Nicaise
• Event Sourcing with Azure Cosmos DB – Roman Provazník
• React performance in a Fable world – Julien Roncaglia
• Azure Functions Deep Dive – Sia
• Becoming a full stack developer, a quest into the unknown – Gien Verschatse (slides)
• Domain Driven UI with SAFE Stack – Roman Sachse
• Scaling Elmish Applications – Zaid Ajaj
• La Chanson de FableConf

Videos & Slides

• Two ways to include parameters in url using Suave.IO – Toni Lucca
• Building a Compiler with Immo Landwerth:
  • Episode 5: Line numbers and clean-up
• Akka + F# = Akkling. .NET Fest 2018 – Vagif Abilov (RU)
• One year of using F# in production at SBTech. .NET Fest 2018 – Антон Молдован. (RU)
• Scaling CAP theorem for modern distributed systems. .NET Fest 2018 – Антон Молдован (RU)

Blogs

• A Contract Pattern for Schemaless DataStores – Eirik Tsarpalis
• F# Stanford NLP is running – Tao Liu
• Partial Application in F# – Gareth Hubball
• A Story Of Reliable Code – Artyom G
• Machine Learning Monday – Kunjan Dalal
• Safe Stack in Dokku – Kunjan Dalal
• How to F# with Devon Burriss
  • Part 6: Handling data that is not there
  • Part 7: Working with collections
  • Part 8: Handling Errors Elegantly

F# vNext

• WIP: F# interactive with package management that runs on .NET Core.
• New language suggestions:
  • Add data frame/data table structure and associated module-capabilities (similar to Deedle) to the core data structures.

Open source projects

• Dzoukr/CosmoStore – F# Event store for Azure Cosmos DB and Azure Table Storage
• dbrattli/Fable.Reaction –  Fable.Reaction, Reactive (Rx) Elmish for F# and Fable
• tpetricek/elmish-spreadsheet – Excel 365 in 100ish lines of F#
• DevLyon/mixter – CQRS and Event Sourcing Koans
• ArthurFSharp/ElmishWPFCognitiveServices – UWP / WPF Image recognition app written in F# and Fabulous and C# since we can’t access Universal Windows API in F#.

New Releases

• Fake.Core.Target  5.9.2
• WebSharper 4.5.5
• Paket 5.182.1 with full .net core support
• FSharp. TypeProviders. Templates 5.2.0
• BenchmarkDotNet v0.11.2

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

Previous F# Weekly edition – #43, 2018

Welcome to F# Weekly,

This is an anniversary edition of F# Weekly, we are together for 6 amazing years! Thank you for reading F# Weekly and for all your contribution to the community.

A roundup of F# content from this past week:

News

• F# Advent Calendar in English 2018
• Fantoms Online – F# AST viewer
• Reinventing time reporting with modern .NET – part 1
• Rider 2018.3 EAP 4 with improved F# support
• Rider 2018.3 assembly explorer and cross-platform .NET decompiler
• Bringing .NET application performance analysis to Linux
• .NET Core Source Code Analysis with Intel® VTune™ Amplifier

Videos & Slides

• How To “Dot” Into Anything, Anywhere, Anytime (Facilitating Data-First Programming) – Steven Taylor
• Web UI Test Automation With A Functional Framework – Edgar Sanchez
• Fast Neural Networks A No Brainer! The Actor Model As Neuron – Ricardo Terrell
• Checkout new videos from Gareth Hubball
• Taking Software Development Personal – Scott Nimrod
• “Solving Rubik’s Cubes with F#” at FableConf – Stachu Korick
• Data visualization with F# script files, Fable REPL and Recharts – Evelina Gabasova
• Channel Reboot! – Dave Thomas
• Building a Compiler with Immo Landwerth:
  • Episode 4: Making testing a blast

Blogs

• Getting Started with AWS Lambda in F# – John Ruble
• How to F# by Devon Burriss
  • Part 1: Assigning values and getting to know types
  • Part 2: Putting the function in Functional Programming
  • Part 3: Working with Functions and getting them to work for you
  • Part 4: Making decisions with control flow
  • Part 5: Making magic with Pattern Matching
• Continuous deployment of SAFE apps on linux server – Jindra Ivánek
• Getting a file piped to your dotnet app – Daniel Markham

F# vNext

• Recently changed/merged RFC:
  • F# RFC FS-1030 – Anonymous Records
  • F# RFC FS-1060 – Nullable Reference Types
  • F# RFC FS-1064 – Allow access of ValueTuple Properties from Struct Tuples

Open source projects

• ArthurFSharp/ElmishWPFCognitiveServices – WPF Application in F# (Elmish.WPF) that communicate with cognitive services (Text analysis sentiments, …)

New Releases

• WebSharper 4.5.4
• FSharp.Literate 3.0.0-beta12
• Elmish. Bridge. Fabulous 1.0.1

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

Previous F# Weekly edition – #42, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Does F# have a future?
• Fantomas v2.9.0 Online
• Guidance for library authors
• Diagnosing .NET Core ThreadPool Starvation with PerfView (Why my service is not saturating all cores or seems to stall)
• ONNX Runtime for inferencing machine learning models now in preview
• Automating Release Notes with Azure Functions

Videos & Slides

• DotNet Rocks:”Coding Haskell and F#” – with guest Daniel Chambers
• Extending F# through Computation Expressions – Ryan Riley
• Dependency Injection, Unit Testing, C# vs F# – Mark Seemann at NDC Sydney 2018
• F# and some Websocket fun – wrapping a low-level C# Library. – Gareth Hubball
• F# Websockets, Xamarin Forms and tonight: Something might work! – Gareth Hubball
• F# Friday Fundamentals. – Gareth Hubball
• localization using FSharp.Data.Xsd type provider – Toni Lucca
• Building a Compiler with Immo Landwerth:
  • Episode 3: Assignments & Variables

Blogs

• Up and running with PAKET – Devon Burriss
• Black-Scholes-Merton, F# and AVX2 – #2 – Franco Tiveron
• F# Scripts – Devon Burriss
• Using Generic Type For Type Casting In F# – Ehsan Ghanbari
• Developing a F# Console App Using Hopac, Logary, and Expecto – Daniel Markham
• Efficiently At: Fitting Active Workset and Element’s Workset – Ching-Hua Chen
• Music with F#: The Language and the Note – Leo Cavalcante

F# vNext

• Recently changed/merged RFC:
  • F# RFC FS-1060 – Nullable Reference Types
  • F# RFC FS-1062 – (Add Async.WithCancellation)
  • F# RFC FS-1063 – Support let! .. and… for applicative functors
  • F# RFC FS-1065 – ValueOption type and function parity

https://twitter.com/chriskrycho/status/1051187955262320640

Open source projects

• fsprojects/Zander – Regular expression for matrix information. I.e. parse structured blocks of information from csv or excel files (or similar 2d matrixes)
• AnthonyLloyd/Fsion – Power from bringing together datums, the atoms of data. EAVT (Entity, Attribute, Value, Time) database for F#

New Releases

• FSharp. Data 3.0.0
• Fantomas 2.9.0
• Expecto v8.4.3
• Zander 3.0.0
• giraffe-template 0.19.0

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

Previous F# Weekly edition – #41, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Announcing ML.NET 0.6 (Machine Learning .NET)
• Welcoming Infer.NET to the .NET Foundation!
• Using .NET Hardware Intrinsics API to accelerate machine learning scenarios
• Type-safe documentation for Fable.Remoting

Videos & Slides

• F# Fundamentals & Xamarin – Gareth
• F# and Suave.Io: passing parameters to javascript – Toni Lucca
• Building a Compiler with Immo Landwerth:
  • Episode 1: A basic expression evaluator
  • Episode 2: More operators

Blogs

• Open Source Documentation – Dustin Moris Gorski
• Filter Selected Elements by Category – Ching-Hua Chen
• Functional way to build modern web solutions with F# Safe Stack – Luteceo
• A Year in Clojure (updated) – Taylor
• Synchronize Section Box – Ching-Hua Chen
• F# and Elasticsearch – codesuji
• SAFE stack on Ubuntu 18.04 from scratch – Atle Rudshaug
• Music with F#: The Language and the Note – Leo Cavalcante

F# vNext

• Async Streams (C# IAsyncEnumerable<T>)
• F# RFC FS-1064 – Allow access of ValueTuple Properties from Struct Tuples
• New ideas:
  • ValueOption parity with options

Open source projects

• fsprojects/OpenAPITypeProvider – F# type provider for Open API specification
• enkomio/sacara – Sacara VM (A stack based intermediate language aimed at software protection by running in a software VM)

New Releases

• FreyaFs 4.0.0
• FSharp.Azure.Storage 3.1.0
• Sacara 2.0.0

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

Previous F# Weekly edition – #40, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• New book ‘Stylish F#’ by Kit Eason is ‘text complete’
• Microsoft Infer.NET  machine learning framework goes open source!
• Migration to Fable 2 & Fable 2 REPL
• The bookstore SAFE sample app is now fully converted to Fable 2
• Vote for the 2018 Fable Heroes!
• Announcing the Compositional IT YouTube channel
• Announcing Orleans 2.1
• Blazor 0.6.0 experimental release now available
• Update on .NET Core 3.0 and .NET Framework 4.8
• Visual Studio 2017 and Visual Studio for Mac Support Updates
• How to upgrade extensions to support Visual Studio 2019
• .NET Core 2.0 has reached end of life
• Web Assembly and Blazor: Re-assembling the Web

Videos & Slides

• Co-Recursive Interviews #020 – Concurrency and FP with Riccardo Terrell
• Live Programming in F# (vol. 2) – Scott Nimrod
• F# and Xamarin development – Steamdeck replacement?? – Gareth Hubball
• Ordering System – Toni Lucca
• You Got Logic in my Functional Programming! – Dave Curylo
• Building Fabulous mobile apps with F# – Jim Bennett

Blogs

• Azure Functions and Azure Storage: secure authentication with Managed Identities and without managing keys! – Lena Hall
• REST API with MongoDB and F# on .NET Core – Leo Cavalcante
• Unboxing and Exploration – Mafinar Khan
• Writing to Azure Storage With F# – Larry O’Brien
• A History of .NET Runtimes – Matt Warren
• Open F# 2018 – bretthall
• Static code analysis in Javascript: verifying correctness of pattern matching – Zaid Ajaj
• Black-Scholes-Merton, F# and AVX2 – #1 – Franco Tiveron
• Immutability in .NET – Eowind

F# vNext

• New ideas:
  • Add argmax,argmin equivalents to FSharp.Core
  • Extending F# Slicing Syntax for NDArrays (like Numpy)
  • GetSlice for 3D (possibly 4D) arrays
  • Merge fields of the same type on multi-case union structs

Open source projects

• ronaldschlenker/FsHttp – A lightweight F# HTTP library.
• FsToolkit.ErrorHandling – utility library to work with Result type in F# to do error handling.
• Prolucid/FsShelter – Author Apache Storm topologies with F# using statically-typed streams

New Releases

• Chiron 6.3.0
• Giraffe 3.1.0
• Elmish. Bridge. Client 2.0.0
• Trail 0.0.6

 

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

Previous F# Weekly edition – #39, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• The Early History of the F# Language (HOPL IV draft 1, September 2018)
• Community for F# Heroes 2018
  • Maxime Mangel
  • ncave
  • Don Syme
  • Gien Verschatse
• .NET API documentation moved from MSDN to docs.microsoft.com
• Announcing Cumulative Updates for .NET Framework for Windows 10 October 2018 Update
• Announcing .NET Framework 4.8 Early Access build 3646

https://twitter.com/c4fsharp/status/1045484307207213056

Videos & Slides

• Blazing New Trails with Web Assembly – Ryan Riley

 

Blogs

• How Microsoft rewrote its C# compiler in C# and made it open source – Mads Torgersen
• F# Enum’s Usage – Tao Liu
• Update on C# and F#’s Default Interface Methods – Jonathan Allen
• Using F# in Godot 3 – Lars Kokemohr
• Functional Domain Modeling – Ashish Vegaraju

F# vNext

• New ideas:
  • Allow types to be spliced into a typeof keyword to make reflection and meta-programming easier
  • Fsc can manipulate AST at compile time (wanna approve)

Open source projects

• dustinmoris/CI-BuildStats – Little SVG widget to display AppVeyor, TravisCI, CircleCI or Azure Pipelines build history charts and other SVG badges.
• panesofglass/computation-expressions-workshop – F# Computation Expressions Workshop

New Releases

• Fable. ReactGoogleMaps 0.4.3
• Expecto 8.4.2

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

Previous F# Weekly edition – #37-38, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# Helpers for Azure DevOps
• Phillip’s office hours from Slack, 2018-09-18
• New version of Ionide is out with reference CodeLens
• Giraffe 3.0.0 with huge perf improvements for the GiraffeViewEngine and more
• Fable and TypeScript – Love Story or Forbidden Affair?
• Blazor 0.6 apps can be built in other .NET languages or without .cshtml files!
• Latest results of Zebra performance vs ASP.NET core
• Giraffe Documentation
• Writing a JIT Compiler in C#
• Announcing ‘Machine Learning .NET’ 0.5
• Announcing Azure Pipelines with unlimited CI/CD minutes for open source
• Azure Pipelines now available in GitHub Marketplace
• GitHub Pull Requests in Visual Studio Code
• Announcing .NET Core 2.2 Preview 2
• Performance of FASTER in C#
• The future of ASP.NET SignalR
• Get This Fantastic Book about .NET Memory Management!
• Xamarin.Forms 3.2.0 Released: Going Big with Little Things
• Updating your .NET project dependencies with Dependabot

.NET Conf 2018 + slides

• What’s new with F# 4.5 (slides)
• Machine Learning in .NET (ML.NET)
• AI for Every Developer
• Artificial Intelligence and Machine Learning for Every .NET Developer
• Keynote
• Welcome to .NET Conf 2018!
• What’s Coming to C#?
• Build Great Libraries using .NET Standard
• Latest Productivity Updates in Visual Studio 2017 Update 15.8
• Visual Studio for Mac Tips & Tricks
• Retro Computing with .NET
• 5 Azure Services Every .NET Developer Needs to Know
• Put your C#, VB and F# projects and packaging on a diet
• .NET Core CLI and Global Tools
• Azure DevOps for .NET Teams
• Building your Open Source projects with Azure Pipelines and Azure
• Azure Durable Functions for Serverless .NET Orchestration
• What’s New in Xamarin Forms?
• Blazor: Modern Web development with .NET and WebAssembly

Videos

• Making Mobile App Programming Simple With F# – Don Syme (feat. Jim Bennett)
• BDD in a Functional World – Chris Roff
• How to look like a statistician: a developer’s guide to probabilistic programming – Evelina Gabasova
• .NET Design Reviews: Hardware Intrinsics (Intel)
• TWC9: Azure DevOps Launch, .NET Conf 2018, GitHub PR Extension for VS Code, Mario Madness and more
• YOW! 2017 Ken Scambler – Adopting FP: A Human-First Approach

Blogs

• Introducing F# Analyzers – Krzysztof Cieślak
• Elmish Xamarin Forms from Fable point of View – ‏Kunjan Dalal
• F# – A trading strategy backtester #3 – Franco Tiveron
• Using MiniProfiler with FSharp – Akos Lukacs
• Information Accounting: Budget Your Code – Tiny Giant Books
• Build your first Web API with F#, Giraffe and host it on Azure Cloud – Aram Koukia
• Give me Monsters! (Part 5) – ‏Mathias Brandewinder
• Visual Studio 2017 v15.7 Brings F# Up to Par with C# – David Ramel
• Reporting data from ClickUp (or any) API in F# – Tamás Srancsik
• Replacing FAKE target strings with types – Julien Roncaglia
• OSS Build and Release with VSTS – Oren Novotny

F# vNext

• F# Language and Compiler Release Notes
• The F# TypeProvider SDK now has a template for creating a basic type provider and packaging it for all F# tooling including .NET SDK.
• Visual Studio 2017 version 15.8.5
  • Compiling non-.NET SDK style F# projects results in an internal MSBuild error unless MSBuild parallelism is set to 1.
  • F# is not NGEN’d in Visual Studio.
  • F# deploys the FSharp.Core 4.5.0.0 binary in the 4.4.3.0 location.
• New ideas:
  • Compiler warning when `obj` is inferred as a type
  • Allow results of `match!` to be bound
  • Adapt differentiated F# and vectors, matrices, tensors as core data types
  • Use on multiplae binding (`let x, y = …` compiles, but `use x, y = ..` not)
  • Generic struct type whose fields are all unmanaged types is unmanaged
  • remove type augmentation eviction notice
  • create an fsi.RemovePrinterTransformer method

Open source projects

• jet/falanx  – Generates F# code from proto3 definition files
• jimbobbennett/SqueakyAppLinuxAndMac – A version of the default Fabulous app template running on Linux and macOS
• lqdev/RemarkFS – FSharp Markdown Slide Creation Tool based on Remark
• DieselMeister/FSharpris – Tetris Clone in F#
• mavnn/elmish-tutorial – This tutorial teaches people how to use Fable, Elmish and Fulma to build a simple UI
• mvsmal/saturn-boilerplate – Boilerplate for Saturn project with FAKE 5
• Zaid-Ajaj/fabulous-simple-elements – An alternative view rendering API for Fabulous (Elmish Xamarin.Forms) that is easy to use and simple to read, inspired by Elmish on the web.
• nosami/SokobanFabulous – Sokoban game for iOS and Android written in F# using Xamarin Fabulous framework
• CompositionalIT/SAFE-Dojo – An introductory dojo to learn how to develop full stack web applications in F#
• fsharplang-ru/Fable.SemanticUI – React.SeamanticUI to Fable bindings

New Releases

• Giraffe 3.0.0
• SQLProvider 1.1.52
• Fantomas 2.8.1
• MiniScaffold 0.12.0 is out with support for scaffolding of console apps
• WebSharper 4.5.2
• Hopac v0.4.1
• FSharp. Data. Npgsql 0.1.44-beta
• Linq. Expression. Optimizer 1.0.12
• Rider 2018.2.3
• Fable. MaterialUI 1.3.2

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

Previous F# Weekly edition – #36, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Introduction to Azure Durable Functions
• Numbers in Fable
• WebSharper 4.5 released
• WebSharper.React: new and improved!

https://twitter.com/c4fsharp/status/1036995794690342914

Videos

• BDD in a Functional World | CukenFest London | Chris Roff
• YOW! 2017 Ken Scambler – Adopting FP: A Human-First Approach
• Making mobile apps simple with F# – Don Syme
• Do you even type, Bro? – Youenn Bouglouan

Blogs

• F# Microservice Patterns @ Jet.com – James Novino
• Property-Based Security Testing in F# — bringing developers and security closer to each other – Stijn Moreels
• Outside-in TDD with F# – Erik Sacré

F# vNext

• FSharp. Compiler. Tools for F# 4. 5
• New ideas:
  • Code Quotations to fail during compilation or to support unmanaged pointers, not to fail during runtime

Open source projects

• fsprojects/Fabulous – F# Functional App Development – Elmish for Xamarin.Forms
• jimbobbennett/Awesome-Fabulous – A hand-curated list of awesome resources when using Fabulous
• Tarmil/awesome-websharper – Awesome links for WebSharper
• dburriss/Fucturizr -A DSL for working with Structurizr
• 17cupsofcoffee/AkkaMUD – Building a MUD in F# and Akka.NET
• Zaid-Ajaj/ElmCounterWPF – Pure F#/Xaml counter using Elmish.WPF and XAML type provider
• TimLariviere/ElmishPlanets – F# / Elmish.XamarinForms / UrhoSharp
• TheAngryByrd/dotnet-mono – dotnet utility to run .net full apps using mono on OSX/Linux

New Releases

• FSharp. Compiler. Tools 10.2.1 (for F# 4. 5)
• Expecto v8.3.0
• Fable 2.0.0-beta-003
• MiniScaffold 0.11.0 is out with FAKE 5 support
• Marten.FSharp 0.4.2

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

Previous F# Weekly edition – #35, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• .NET Standard 2.1
• WebSharper.React: new and improved!
• .NET Foundation August Update
• .NET Framework August 2018 Preview of Quality Rollup

Videos

• F# and Fable: re-think web development – Maxime Mangel
• Solving Rubik’s Cubes with F# – Stachu Korick
• Windows Compatibility Pack with Immo Landwerth
• PerfView: The Ultimate .NET Performance Tool by Sasha Goldshtein
• Functional Application Designing [Integrated Course by Onur Gumus]

Blogs

• Watching files with FAKE 5 – Florian Verdonck
• Things VsCode Didn’t Tell Me About Programming in F# – Daniel Markham
• Using the New Xamarin.Forms Controls Toolbox – Maddy Leger
• Replacing Entity Framework Classes With Record Types – Jamie Dixon
• Adding SourceLink to your .NET Core Library – Carlos Mendible
• F# – A trading strategy backtester #2 – Franco Tiveron
• Fuzzing the .NET JIT Compiler – Matt Warren
• Deep-dive into .NET Core primitives, part 2: the shared framework – Nate McMaster

F# vNext

• New ideas:
  • Lift byref generics restrictions for inline functions
  • Reduce code duplication between signature and code files

Open source projects

• isaksky/Incremental.NET – A library for incremental computations. Based on janestreet/incremental (https://github.com/janestreet/incremental) for OCaml.
• TimLariviere/ElmishPlanets – F# / Elmish.XamarinForms / UrhoSharp
• demetrixbio/FSharp.Data.Npgsql – F# type providers to support statically typed access to input parameters and result set of sql statement in idiomatic F# way. Data modifications via statically typed tables.

New Releases

• dotnet- fantomas 2.8.0
• giraffe- template 0.18.0
• FAKE 5.5.0
• New Fable 2 beta
• fable-loader 2.0.0-beta-001 with compatibility with BabelJS 7

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

Previous F# Weekly edition – #34, 2018