Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# Advent Calendar in English 2018
• Visual Studio 2017 for Mac version 7.7
• Remote debugging comes to Rider 2018.3
• Visual Studio 2017 version 15.9.3

Videos & Slides

• Rethinking compilers with live coding – Tomas Petricek
• WTF# is Elmish? – Alfonso Garcia-Caro, Kunjan Dalal
• Object oriented vs Functional. An example involving binary trees and state pattern – Toni Lucca

Blogs

• How to F# – Part 10: Writing your first F# applicationPosted – Devon Burriss
• SAFE Stack: One Year On – Compositional IT
• Active Pattern Basics in F# – Dave Lowe
• F# Linux: Mixed Feelings – draptik
• Creating File Reference For An XF Shared .FSProj File – Jamie Dixon
• Creating an Initial Game Board – Jamie Dixon
• Asynchronicity in F# – Dag Brattli

F# vNext

• Core Engineering online meeting notes, 19 November 2018

Open source projects

• dotnet/machinelearning-samples – Samples for ML.NET, an open source and cross-platform machine learning framework for .NET
• fantomas-fmt – vscode extension that uses the awesome fantomas to format fsharp files.
• Tarmil/awesome-websharper – Awesome links for WebSharper

New Releases

• Legivel 0.2.2
• Thoth.Elmish.FormBuilder 0.1.1
• fable-loader and fable-compiler 2.1

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

Previous F# Weekly edition – #47, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Do not miss the last change to join F# Advent Calendar in English 2018
• Fantomas online was updated to new version.
• F# AST viewer – FCS version v25.0.0

https://twitter.com/dsyme/status/1065621878520324097

Videos & Slides

• What’s new in F# 4.5 – Cecil Phillip
• F# Active Patterns – Language Essentials Series – Dave Thomas
• Developer on Fire: Episode 392 | Riccardo Terrell – Seize Opportunity
• Intro to F# on the Web: The SAFE stack – Chet Husk
• FAKE 5 – Chet Husk
• [F#] Working on Twitchdeck and a PR for Fabulous! – GarethHubball
• F# and .NET Core by Compositional IT:
  • F# and .NET Core – Installing F# on Windows
  • F# and .NET Core – Installing F# on Linux
  • F# on .NET Core – The .NET Project System
  • F# and .NET Core – Installing an IDE on Windows
  • F# and .NET Core – Installing an IDE on Linux
  • F# on .NET Core – Debugging in Code

Blogs

• FSharp – Thinking a bit more functionally for a prime number calculator -Gareth Reptons
• Functional architecture: a definition – Mark Seemann
• C64 Remote Programmer – Ross McKinlay
• Saturn with CAS Single Sign-On Sample Application – Marnee
• F# tests driving out architecture, shared libraries and persisted state – EasyAM2

F# vNext

• DictionarySlim got merged to corefxlab
• Points to discuss for the future of F#
• Mono still use F# 4.1.34, but there is PR Bump F# to 4.5
• Added Object viewer for AST and TAST
• New F# language suggestions:
  • Introduce a clean mechanism to delay SRTP overload resolution
  • Allow sequential processing for a sequence of asyncs

Open source projects

• cmeeren/fable-elmish-electron-demo – Complete boilerplate for Electron apps using Fable 2 and Elmish
• ardave/Plot.Core – Cross-Platform Chart Generation Library for .NET Core
• gsomix/avalonia-fsharp-example – “Hello World” example using Avalonia and F#
• WTF# website and episodes

New Releases

• FSharp.Data.SqlClient 2.0.1
• Fantomas 2.9.1
• Fable Material-UI v2.4.0
• Expecto v8.6.0

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

Previous F# Weekly edition – #46, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Building C# 8.0
• Visual Studio 2017 version 15.9 Release Notes
• Kit Eason’s “Stylish F#” is available for pre-order now!
• F# still associated with the Highest Salaries Worldwide!
• New FAKE website and logo.
• SAFE-stack on the ThoughWorks technology radar.
• .NET Core tooling update for Visual Studio 2017 version 15.9
• A preview of UX and UI changes in Visual Studio 2019

Videos & Slides

• F# Object Expressions – Language Essentials Series – Dave Thomas
• Lambda World 2018 – A developer’s guide to probabilistic programming – Evelina Gabasova
• EasyAM2 Episode 4 – F# Coding DevLog – Daniel Markham
• Building a Compiler with Immo Landwerth:
  • Episode 7: if-, while- and for-statements

Blogs

• Write your own Excel in 100 lines of F# – Tomas Petricek
• Give me Monsters! (Part 6) – Mathias Brandewinder
• F# spoiled me, or why I don’t enjoy C# anymore – Roman Liman
• Why and what is formlets? – Mårten Rånge
• Using MiniProfiler with FSharp – Akos Lukacs
• Day 1 of functional programming for an OO developer – Gareth Reptons
• React hooks in Fable – Florian Verdonck
• Move NLP IKVM to F# .NET-Friendly – Tao Liu
• Rhino Plug-in with F# – Ching-Hua Chen
• Solving the “Euler Knight’s Tour” using F# – Elemar Júnior
• Building a game using F# with Jamie Dixon
  • Panzer General Portable: Redux
  • Setting Up The Environment For Mobile Development
  • Parsing Photos

F# vNext

• Visual Studio 15.9 Release Notes for F#
• [CompilerPerf] Nullness checking prototype

Open source projects

• gsomix/fulma-todomvc – The TodoMVC app written in F#, using Fable, Elmish and Fulma

New Releases

• FSharp.Azure.StorageTypeProvider 2.0.0-beta
• Fable.Elmish.HMR 3.0.1
• WebSharper 4.5.5
• Ionide 3.30.0
• FsCheck 2.13.0 with .NET Standard 1.0 support
• FAKE 5.10.1
• dotnet-fable 2.0.10

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

Previous F# Weekly edition – #45, 2018

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Announcing .NET Standard 2.1
• Announcing ML.NET 0.7 (Machine Learning .NET)
• After 4 years and over 2000 Paket releases, we finally convinced the @nuget team to use lock files!
• New Github features:
  • Related issues
  • Suggested changes
  • Prioritize your notifications
  • Transfer an issue from one repo
  • Delete issue

Videos & Slides

• Introduction to Metaprogramming with F# and Quotations – Dave Thomas
• SAFE Stack Debugging in VS Code – Compositional IT
• Building a Compiler with Immo Landwerth:
  • Episode 6: Statements, Variables, and Scoping
• F# and Fable – @mecusorin

Blogs

• Building a .NET IDE with JetBrains Rider – Chris Woodruff
• Understanding the Whys, Whats, and Whens of ValueTask – Stephen Toub
• How to F# with Devon Burriss
  • Part 9 – Working with databases in F#

F# vNext

• [MERGED] [FS-1030] – Anonymous records
• F# RFC FS-1066 – Add tryExactlyOne to array, list and seq
• New language suggestions:
  • if let expression

Open source projects

• FSharp.JsonSkippable – imple strong typing of whether JSON properties are excluded or null
• G-Research/Teq – Type equality for F#

New Releases

• Npgsql.FSharp 1.0.0
• Expecto v8.5.0
• FsUnit 3.4.0
• Avalonia 0.7

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

Previous F# Weekly edition – #44, 2018

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