Sergey Tihon's Blog

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• What is the burning question for the future of .NET / Core CLR / Mono today?
• What would make an epic and awesome functional programming / F# side track for you?
• New docker image is created with the latest Visual F# 1.0.0-alpha-160318 and .NET Core cli build
• Vote here if you would like to see F# to JS compiler that uses TypeScript.
• Suave may support live reload of F# code!
• MahApps.Metro uses Paket.
• You can now rate and review extensions on VS Code marketplace
• “… F#, an open-source language that’s commonly used to create JavaScript code“
• Microsoft Build 2016 sessions are now listed.
• The week in .NET – 3/22/2016

Videos/Presentations

• History and Philosophy of types (Lambda Days 2016) – Tomas Petricek
• A brief history of programming languages (Lambda Days 2016) – Andrea Magnorsky
• F#, Azure and the Web – the best of friends with Isaac Abraham
• Functional Reactive Programming with NUI, Part 2 – Riccardo Terrell
• Функциональное программирование на F# в обработке больших данных и машинном обучении – Дмитрий Сошников
• The Joy of Functional GameDev Project 2 Episode 30 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 31 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 32 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 33 – Ernest Pazera

Blogs

• Creating VS Code plugins with F# and Fable – Krzysztof Cieślak
• Kaggle Home Depot competition notes: features – Mathias Brandewinder
• Capture Video in 2 Lines of Code – Boris Kogan
• Sentiment Analysis in F# – Stephen Ireland
• Property based testing in the real world – or how I made my package manager suck less – Steffen Forkmann
• A Sneak Preview of #fsharpX 2016 – @Felienne
• Exercises in Programming Style–Spreadsheet – Yan Cui
• Exercises in Programming Style–Lazy Rivers – Yan Cui
• Functional Actor Patterns with Akka.NET and F# – Mikhail Shilkov
• Avoiding Silly Mistakes with F# Unit of Measure – Mark Heath
• Simulating microservices using F# and Suave.io – Michal Franc
• Sentiment Analysis in F# – Steve Ireland
• A Performance Comparison of Alea GPU C# and CUDA C++ – Daniel Egloff
• Which is the fastest unicorn so far? – Edgar Sánchez
• How WebSharper.Warp works behind the scene – Kimserey Lam
• How to Daxif, delete all accounts (part 1) – Ramón Soto Mathiesen
• Hack your commit history for fun and profit – Yan Cui
• F# – Functors with Record Types – Ramón Soto Mathiesen
• Is it time to learn F#? – Liam Mclennan
• Writing efficient and reliable code with F# Type Providers – Leif Battermann
• Introduction to Functional Programming and FSharp for CSharp developers – Amit Choudhary
• F# – LeftPad (Updated) – Ramón Soto Mathiesen
• ThoughtWorks Technology Radar: Assess F# – Edgar Sánchez
• Dockerizing Suave Music Store on mono – Tomasz Heimowski
• Static vs. Dynamic Functional Languages – Sami Badawi

F# vNext

• Recently proposed ideas:
  • Add (^%) f = f to core library
  • Add (binary) search function to Map and Set
  • Code clarity: Dot notation for casting objects to interfaces

Open source projects

• Fakta – A Consul + Vault F# library
• generator-suave-microservice – Yeoman generator for Suave (Micro)Services.
• ServiceFabricSuaveStateful – Sample of stateful and stateless Service Fabric services with Suave and NetMQ
• Infers – A library for deriving F# values from their types and, in a way, a direct application of the Curry-Howard correspondence aka Propositions as Types.
• Logibit.Hawk – An F# Hawk implementation with a strongly typed API that guides your usage and minimises security programming errors.
• fsharp-demonstrator – A sample server-side web app with support to run in the Azure App Service
• hype – Compositional Machine Learning and Hyperparameter Optimization

New Releases

• Fable beta (F# to JS compiler) has been released to npm
• LanguageExt.FSharp 1.7.30
• Prime 1.4.0
• Nu Game Engine v1.7
• NLog.FSharp 4.2.3
• Extreme Optimization Numerical Libraries for .NET v6.0

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

Previous F# Weekly edition – #12

Do not miss the chance to visit F# eXchange 2016 to hear about latest news from F# world and meet with F# Legends: Don Syme, Andrew Cherry, Felienne Hermans, Michael Newton, Vicenç Garcia-Altes , Krzysztof Cieślak, Mark Seemann, Evelina Gabasova, Tomas Petricek, Steffen Forkmann, Colin Bull, Scott Wlaschin, Anton Tcholakov, Ross McKinlay, Andrea Magnorsky and others.

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# is #1 Top Paying Tech Worldwide (and most loved .NET language)!
• If you have F# on your resume, you’re in a good position for higher pay
• Jet.com riding F# is the fastest unicorn that was able to rise 1B in 4 month!
• New Pluralsight course from Liam McLennan: F# Fundamentals (The section on FParsec was a nice bonus)
• F# courses at Pluralsight are very well rated
• This is happening: debugging node apps in F#!
• The week in .NET – 3/15/2016
• New release of Ionide for VS Code. Supporting rename and finding references across multiple projects.
• How would you like to create React HTML elements in Fable?
• Open Sourcing the Visual Studio Productivity Power Tools

Videos/Presentations

• Building Reactive Services Using Functional Programming – Rachel Reese
• NET Machine Learning: F# and Accord.NET – Alena Hall
• Functional Reactive Programming with NUI – Riccardo Terrell
• WebSharper LiveData Enabling Modular Persistence for Reactive Data Models in F# Client-Server Web Applications – Loic Denuziere
• Coding f#un – Mike Harris
• Recording and Slides for F# DSLs talk at F# |> Bristol – Yan Cui
• The Joy of Functional GameDev Project 2 Episode 27 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 28 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 29 – Ernest Pazera

Blogs

• GPUs and DSLs for Life Insurance Modeling – Peter Sestoft
• Earthquake scrapping with a type provider – Edgar Sánchez
• Functional architecture is Ports and Adapters – Mark Seemann
• Prototyping web app made easy with WebSharper Warp – Kimserey Lam
• An F# rewrite of a fully refactored C# Clean Code example – Functional Software .NET
• F# syntax highlighting dark-theme coloring scheme for VS-2015 with Visual F# Power Tools – Functional Software .NET
• Moving the BPN logic from C# to F# [Desiderius part #13] – Felienne

F# vNext

• Recently created F# Language Design RFCs:
  • F# RFC FS-1010 – Add Map.count
• Recently proposed ideas:
  • Inlined default argument values
  • custom set the ‘last defined’
  • allow defining function with generic type parameter within another function
  • Add constraints to match FSharpType.Is* predicates

Open source projects

• MessageRouter – A CQRS (Event-driven) message router in F#
• Conductor – Composable data validation for F#
• YoutrackGitlab – A bridge which posts comments created on commits in Gitlab to Youtrack using webhooks
• FSharp.AWS.DynamoDB – F# wrapper API for AWS DynamoDB
• Hornbill – Easily create fake HTTP endpoints for integration testing

New Releases

• Paket 2.53 with lots of bug fixes, C++ support is getting better.

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

Previous F# Weekly edition – #11

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F#TV Gazette February edition (Sign up here for early access to the gazette)
• Join the F#ools’ Day Party and destroy the myth that “F# is for Math and Science”!
• Meet FsUnitTyped for NUnit – statically typed operators for your unit tests. Please try it and share your thoughts!
• New F# REPL is coming (2).
• New F# Book: F# for Machine Learning Essentials
• Chapter 4 (State machines) of Reactive Applications with Akka.Net is now available through MEAP
• Beta: Start Programming With F# Today
• FSharp.Data.SqlClient TypeProvider now uses statically parameterized methods
• Lot of new up-for-grabs issues in fsprojects/Forge
• The week in .NET – 3/8/2016

Videos/Presentations

• Path to F# and NGO Fraudbuster with Jacqueline Homan
• F# with .NET Core and CLI with Enrico Sada
• On .NET 3/3/2016 – Rachel Reese on F# at Jet.com
• The Joy of Functional GameDev Project 2 Episode 25 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 26 – Ernest Pazera

Blogs

• Type Provider Pro-Tip: Using Dictionary – Michael Newton
• Converting a DSL to Executable F# Code On-the-Fly, Part 2 – Mathias Brandewinder
• Building Emulators in F# – Dave Thomas
• Events for Distributed Real-Time Computation –  Kaitlynn Reid
• Why F#? – Karthik Chintala
• GPUs and Domain Specific Languages for Life Insurance Modeling – Daniel Egloff
• Sneak preview of upcoming AleaGPU version 3 – Daniel Egloff
• Cross-platform F# developers get a dose of Ionide – Paul Krill
• Create forms with Websharper.Forms -Kimserey Lam
• How to Daxif, plug-in synchronization (technical stuff) – Ramón Soto Mathiesen
• Playing in F# [Desiderius part 11] –  felienne

F# vNext

• Created F# Language Design RFCs:
  • F# RFC FS-1009 – Allow mutually referential types and modules over larger scopes within files
• Recently proposed ideas:
  • add a keyword for module-local construction but public deconstruction of types
  • Support partial record prototypes
  • Code clarity: Make syntax for sequence expressions as simple as syntax for lists
  • Code clarity: To change the default value returned by function Unchecked.defaultof<string> to “” from null
  • Make Set.count O(1)
  • Add Map.count
  • Allow record inheritance / multiple “inheritance”
  • Allow overloads of custom keywords in computation expressions
  • Allow record types to implement interfaces just by adding the interface name when compatible
  • allow use to not bind the expression to a name
  • Hide Obsolete warnings on record initializer not using the obsolete field.

Open source projects

• FSharp.Core.Fluent – A collection of inlined methods allowing fluent access to all FSharp.Core functions for List, Array, Array2D, Array3D, Seq, Event and Observable.
• Prime – An F# code library for hardcore pure functional programming, and much more
• Bugfree.SharePoint.Analyzer – Projects SharePoint’s hierarchical metadata model onto a relational one for fast exploratory queries.
• FsActorApp – Serivce Fabric Reliable Actors in Fsharp

New Releases

• FsUnit 2.1.0 is out with support of NUnit 3.2 and pretty-print of F# value types
• ExcelFinancialFunctions 2.3.1 (portable version)
• FSharp.Core.Extra 0.1.52

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

Previous F# Weekly edition – #10

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• The week in .NET – 3/1/2016
• The NDCOslo agenda has been published
• F# eXchange 2016 is coming (15th April)

fsharpConf 2016 Videos

• Welcome to fsharpConf – Don Syme & Tomas Petricek
• The F#orce Awakens – Evelina Gabasova
• Patterns and Practices for Real-World Event-Driven Microservices – Rachel Reese
• DEMO: Fun and Games with F# – Sean Trelford
• The 3D Geometry of Louvre Abu Dhabi – Goswin Rothenthal
• Types + Properties = Software – Mark Seemann
• DEMO: Ionide & Cross-platform F# Tools – Krzysztof Cieslak
• F# Microservices with Logging, Tracing and More on Docker – Henrik Feldt
• Web UI Automation with F# and canopy – Chris Holt
• INTERVIEW: Using F# at Jet.com – Rachel Reese
• Android Watch Gesture Recognition with ‘Functional’ State Machines – Faisal Waris
• Cassandra, Docker and F# Awesomeness – Alena Hall
• INTERVIEW: F# Community in Japan – Yukitoshi Suzuki
• A Boardgame Night with Geeks – Felienne Hermans
• Q&A with the F# Team and Community – David Stephens & Tomas Petricek

Videos/Presentations

• Code Review/Refactor Live with Scott Wlaschin
• Taming Cloud Complexity with F# DSLs with Yan Cui

Blogs

• Type Providers Live – the Movie – Michael Newton
• Server MVC and Solving the Wrong Problem – Ryan Riley
• Parallelizing algorithms with the Actor Model – Juan M Gómez
• Exercises in Programming Style–Declared Intentions – Yan Cui
• Using SignalR in FSharp without Dynamic – Dave Shaw
• Building a Poker Bot: Mouse Movements – Mikhail Shilkov
• Exercises in Programming Style–Quarantine – Yan Cui
• Ad-hoc Arbitraries – now with pipes – Mark Seemann
• Create an animated menu with WebSharper.UI.Next – Kimserey Lam
• Using Node.js and NPM with Paket and FAKE – Krzysztof Cieslak
• Working With ProjectScaffold : 0 – Introduction – John Azariah
• How to Daxif, plug-in synchronization – Ramón Soto Mathiesen
• MSCRM and OData from ConsoleApp/Script without annoying web login form – Ramón Soto Mathiesen
• Tracking Apple Pencil angles and pressure with Xamarin – larry
• Learning F#: The Game of Life – Scott Nimrod
• Installing F# – Karthik Chintala
• GPUs and Domain Specific Languages for Life Insurance Modeling – Daniel Egloff
• Type Provider Pro-Tip: Using Dictionary – Michael Newton
• Managing RabbitMQ messages with F# and Akka.NET – Erlend Wiig

F# vNext

• Created F# Language Design RFCs:
  • F# RFC FS-1001 – String Interpolation
  • F# RFC FS-1002 – Cartesian product function for collections
  • F# RFC FS-1003 – nameof Operator
  • F# RFC FS-1004 – Result type
  • F# RFC FS-0005 – Underscore Literals
  • F# RFC FS-0006 – Struct Tuples and Interop with C# 7.0 Tuples
  • F# RFC FS-1007 – Additional Option module functions
  • F# RFC FS-0008 – Struct Records
• Recently proposed ideas:
  • Make tuple defined DU cases more consistent with tuple
  • Add units of measure for standard type aliases
  • Code succinctness: Relax syntax rules for the else branch of an if expression (from Ada 2012)
  • Allow generic type constraints for union and record
  • Code robustness: Range of admissible values for class fields and record fields (from Ada 2012)
  • Code robustness: Types with ranges of admissible values (from Ada 2012)
  • Types with default initial values specified (from Ada 2012)
  • Types with predicates to create subtypes easily (from Ada 2012)
  • Allow basic integer numeric type names in a for loop (from Ada 2012)
  • Allow enumeration type names and discriminated union type names in a for loop (from Ada 2012)
  • Use the in keyword and “|” symbol for membership tests and better readability (from Ada 2012)
  • Inline Record Definition in Discriminated Unions
  • Allow flexible types in default constructor constraint
  • Allow more flexible layout for constraint syntax
  • Add a shorthand/literal syntax for creating Maps
  • Allow function names to end with a question mark.
  • Improve Discriminated Union Type Inference
  • #r #load via fsi method
  • Map keys <–> set compatibility
  • Add Polymorphic Variants (ad-hoc Discriminated Unions)

Open source projects

• bedbrebo – Domain Driven Design – CQRS – Event Sourcing Workshop
• FSharp.SSEClient – Server-Sent Events Client
• cyoa – Choose Your Own Adventure type provider
• fsharp-swapi – F# wrapper for the Star Wars API

New Releases

• FSharp.Data.SqlClient 1.8.1
• FSharp.Configuration 0.5.12
• FSharp.SRGen.Build.Tasks 2.0.1
• FAKE 4.21 comes with helpers for Slack, SonarQube and Chocolatey (and fix for NuGet)
• FSharp.Core.Extra 0.1.47
• Yaaf.FSharp.Helper 0.2.0
• FAKE.Persimmon 1.0.4
• Prime – An F# primitives library. 1.1.0

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

Previous F# Weekly edition – #9

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• The fsharpConf 2016 is really close (Join online on March 4th 2016)
• Fable now has an online REPL
• A Xamarin + Microsoft Future
• Microsoft to acquire Xamarin and empower more developers to build apps on any device
• Welcoming the Xamarin team to Microsoft
• The week in .NET – 2/23/2016
• Interacting with JavaScript code
• New release of VS Code plugin – adding known from Atom WebPreview, and brand new FSharp.Formatting integration
• Great configuration for VS Code, FAKE and Mono – build and debug Your F# applications on OSX or Linux
• Minimal dapper in F#
• The functional language behind PowerQuery – M, is similar to F#
• Fable now has a plugin system and it comes with a tutorial
• Microsoft releases their .NET Kafka client as open source

Videos/Presentations

• F# on the Desktop with Phil Trelford
• Type Providers from the Ground Up with Michael Newton
• Rotem Hermon on the Actor Model and Microsoft Orleans
• 10 Ways of Getting Started with F# – Tomas Petricek
• Programs that Write Programs: How Compilers Work – Craig Stuntz

Blogs

• .NET: A look through F# lenses – pluralsight / Jacqueline Homan
• Unquote, App.config, and You – Mike Harris
• How to Daxif, diff of solutions – Ramón Soto Mathiesen
• Exercises in Programming Style–Tantrum – Yan Cui
• Exercises in Programming Style–Passive Aggressive – Yan Cui
• F#,All# – Daniel_Tuna
• Converting a DSL to Executable F# Code On-the-Fly, Part 1 – Mathias Brandewinder
• |> Operator in Scala – Nicolas A Perez
• Double Cone Design – bryanedds
• GitHubAnimator – Pedro Santos

Ernest Pazera coding corner

• The Joy of Functional GameDev Project 2 Episode 21
• The Joy of Functional GameDev Project 2 Episode 22
• The Joy of Functional GameDev Project 2 Episode 23
• The Joy of Functional GameDev Project 2 Episode 24

F# vNext

• Don Syme looking for a volunteer to help do secretarial work to set up F# RFCs for approved-in-principle design items
• F# and the .NET CLI working together
• Migrate fsproj To .NET CLI

Open source projects

• Active.Net.AddOnlyDb – Easily syncable database of facts (similar to key-value) with obsoletion instead of deletion, based on SQLite
• prunner – Super simple F# parallel unit test library
• SparkCLR – C# language binding and extensions to Apache Spark
• akkling – Experimental F# typed API for Akka.NET
• faster-apis-suave-slides – Presentation for Faster APIs with Suave
• Azure.Batch.Toolkit – A package to streamline usage of Azure Batch Services
• sharpshaders – Shader translation from F# to HLSL
• FShade – Composable shaders for F#

New Releases

• FSharp.Compiler.Service.ProjectCracker 2.0.0.6
• FSharp.Compiler.Service 2.0.0.6
• FSharp.Core.Extra 0.1.32
• LanguageExt.FSharp 1.7.27
• FSharp.Configuration 0.5.11

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

Previous F# Weekly edition – #7-#8

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# Education announced the opening of the one-to-one online mentorship program
• Check out the line-up for @fsharpconf – an online conference on all things on March 4th
• Ionide.Atom is released with FsLint support.
• New features in C# 7 + part 2
• Chessie: A Tale of 3 Nightclubs
• Xamarin forms template from Xamarin studio!
• Prajna docs & code getting much better
• The week in .NET – 2/11/2016
• The week in .NET – 2/17/2016

Videos/Presentations

• The Canopy Test Framework
• Ionide and state of F# open source environment with Krzysztof Cieślak
• Building emulators in F# with 7sharp9
• Building Concurrent, Fault Tolerant, Scalable Applications in F# using Akka.NET
• Domain Modeling with Types with Ryan Riley
• Slides for F# DSL talk at LambdaDays
• F#, data science and StarWars

Blogs

• Functional languages: What they are, where they’re going – Paul Krill
• Exercises in Programming Style–Reflective – Yan Cui
• Managing RabbitMQ messages with F# and Akka.NET – Vagif Abilov
• Validation by types – Robin Ridderholt
• Benchmarking IEnumerables in F# – Seq.timed – Lincoln Atkinson
• MS CRM Solution Packager, why and how to use it correctly – Ramón Soto Mathiesen
• F# for Architects: Hitting the sweet spot – Chris Smith
• Functional Programming, the .NET Way – Arnaldo Pérez Castaño
• Functional Programming, the .NET Way, Part 2 – Arnaldo Pérez Castaño
• Exercises in Programming Style–Aspects  – Yan Cui
• Functional style follow-up – Eric Lippert
• DDD with DSL monad in fsharp – Hodza Nassredin
• Types + Properties = Software: designing with types – Mark Seemann
• F# will solve your everyday problem without a headache – Tomas Jansson
• Improving developer feedback loop in WebSharper.UI.Next with FAKE – Kimserey Lam
• How to Daxif, basic setup – Ramón Soto Mathiesen
• Building a Poker Bot: String and Number Recognition – Mikhail Shilkov
• Daily Hack 001: Learning F# – Basic Syntax – Luke Merrett
• Daily Hack 002: Learning F# – Continuing the Tutorial – Luke Merrett
• Working with running totals in F# – Isaac Abraham
• 3 ways of achieving code correctness – Vladimir Khorikov
• Exercises in Programming Style–Plugins – Yan Cui
• Daily Hack 003: Learning F# – Type Inference & Definitions – Luke Merrett
• FsCheck setup in F# – Nikos Baxevanis
• Arrays in F# – Vicenç García-Altés
• Reading type annotations – David Tchepak
• Currying vs. partial application – David Tchepak
• Pondering a prescription for pattern matching prevalance – David Tchepak
• Exercises in Programming Style–Constructivist – Yan Cui
• Domain Design | data- or function-centric? – Leif Battermann
• Implementation Hiding in F# – Frank Joppe
• Sequences in F# – Vicenç García-Altés
• Let’s Discuss Functional Languages – Traven
• Converting a DSL to Executable F# Code On-the-Fly, Part 1 – Mathias Brandewinder

Ernest Pazera coding corner

• The Joy of Functional GameDev Project 2 Episode 8
• The Joy of Functional GameDev Project 2 Episode 9
• The Joy of Functional GameDev Project 2 Episode 10
• The Joy of Functional GameDev Project 2 Episode 11
• The Joy of Functional GameDev Project 2 Episode 12
• The Joy of Functional GameDev Project 2 Episode 13
• The Joy of Functional GameDev Project 2 Episode 14
• The Joy of Functional GameDev Project 2 Episode 15
• The Joy of Functional GameDev Project 2 Episode 16
• The Joy of Functional GameDev Project 2 Episode 17
• The Joy of Functional GameDev Project 2 Episode 18
• The Joy of Functional GameDev Project 2 Episode 19
• The Joy of Functional GameDev Project 2 Episode 20

Open source projects

• angara – The modelling environment
• Forge – A command line tool that provides tasks for creating F# projects with no dependence on other languages.
• FCell – Deliver the power of .NET from within Microsoft Excel
• fsharp-dotnet-cli-samples – F# and the Dotnet CLI working together
• eventstorefeedbrowser – F# Akka based Event Store ATOM feed browser
• Fuchu.Xunit – Xunit binding for tests written in Fuchu framework
• Fabel – F# to JavaScript Compiler
• Flibdivsufsort – An F# Wrapper Around the libdivsufsort Suffix Array lib
• fsharp-swapi – F# wrapper for the Star Wars API
• mbrace-on-brisk – The Elastacloud PAAS configuration and project etc. of MBrace on Brisk
• Fungible – A library for fast reflective updates to immutable data trees

New Releases

• FSharp.Compiler.Service 2.0.0.5
• FSharp.Compiler.Service.ProjectCracker 2.0.0.5
• Chessie 0.4.0
• FsUnit 2.0 with NUnit 3 support
• MathNet.Numerics.FSharp 3.11.0
• FSharp.SRGen.Build.Tasks 2.0.0
• FSharp.Core.Extra 0.1.0
• Persimmon.Dried 1.2.0
• Trustpilot.FSharp.Flow 0.4.4
• NuGameEngine v1.4.0.0
• LanguageExt.FSharp 1.7.21
• Fungible 1.0.0

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

Previous F# Weekly edition – #6

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• Adding #fsharpconf to your F# meetup page is a great way to let your friends know
• Sign up to attend Community for F# virtual events.
• Ionide/Atom improved FsLab support
• “F# |> Kaggle” team participates in “Home Depot Product Search Relevance” competition.
• Welcome the Czech F# user group & Bangalore F# Meetup
• Lots of functional goodness proposed for C#7. Borrowing a lot from F# it looks like
• A cheatsheet for F#’s DSL-friendly features
• Microsoft Open Source Challenge for Students. Win $5000 for developing a project with F#

Videos/Presentations

• Functional Track talks from NDC Oslo 2015
• Ionide and F# OSS Presentation – Jared Hester

Blogs

• Interactive Coding with C# and F# REPLs (ScriptCS or the Visual Studio Interactive Window) – Scott Hanselman
• 10 Tips for Productive F# Scripting – Mathias Brandewinder
• The Jet Engine we built in 2015. – Louie Bacaj
• Project Euler — Problem 83 Solution – Yan Cui
• Upcoming user group talks in UK – Yan Cui
• Modeling answers [Desiderius part 6] – Fay-lee-nuh
• Building a Poker Bot: Card Recognition – Mikhail Shilkov
• F# Functions Explained – Currying & Partial Application –  Ankit Solanki
• F# – How to keep domain pure when logic depends on current date – Lauri Taimila
• F# For Beginners – Sacha Barbs
• Exercises in Programming Style–Introspective – Yan Cui
• Validation by types – Robin Ridderholt
• Item and Slice F# – Mike Harris
• Method chaining for Bootstrap components with WebSharper in F# – Kimserey Lam

Ernest Pazera coding corner

• The Joy of Functional GameDev Project 2 Episode 2
• The Joy of Functional GameDev Project 2 Episode 3
• The Joy of Functional GameDev Project 2 Episode 4
• The Joy of Functional GameDev Project 2 Episode 5
• The Joy of Functional GameDev Project 2 Episode 6
• The Joy of Functional GameDev Project 2 Episode 7

F# vNext News 

• If you’re developing a type provider and you want to make it target PCL-profiles please consider road-testing this
• Looks like F# might be losing its citizenship in the dotnet CLI tooling 😦
• What does Visual F# IDE Tools using Roslyn Workspaces mean for the future Visual F# Powertools and Ionide
• Revived: “[WIP] string interpolation“
• Recently proposed ideas:
  • Allow types and modules to be mutually referential (not across files, only within a closed scope in a single file)
  • extend ComputationExpression builders with Map : m<‘a> * (‘a -> ‘b) -> m<‘b>
• Features recently approved-in-principle by Don Syme:
  • Optionally relax signatures of -X, sin X, cos X to allow use w.r.t. subtyping
  • Allow implementation of abstract slots with generic return type instantiated at type ‘unit’
  • Expand support for byref to match C# 7
  • Catch improper use of monadic return in async
  • Make F# quotations and FSharp.Reflection usable with mscorlib and FSharp.Core for other target profiles
  • Add Result<‘Success,’Failure> to FSharp.Core
  • Add System.Collections.ICollection implementations to F# list/set/map
  • Make call syntax simpler for statically resolved member constraints
  • Allow access modifies to auto properties getters and setters
  • Cartesian product function for collections
  • Allow opening of static classes (matching the C# design)
  • Display current parameter type in tooltip for generic function
  • Properly print ‘None’ for option types from FSI
  • Accept integer literals like 12_345 for readability
  • Add StructOption<T>
  • Add support for StructTuple
  • Add string interpolation to println syntax (from Swift)
  • Add NameOf operator to follow C#/VB update

Open source projects

• Gluon – A type-safe remoting connector between an F# backend and a TypeScript client
• FsGll – A parser combinator library based on the GLL algorithm for F#
• Delegate.SPOcopy – A library that copies a local folder, including files and subfolders (recursively), to SharePoint Online, ensuring valid SharePoint relative url names.
• stockestimator – F# library for estimating future stock prices
• phutball-fs – Phutball game in F#
• fsraster – A simple image-processing and primitive-rendering app in F# and WPF

New Releases

• FSharp.Compiler.Service 2.0.0.4
• FSharp.Compiler.Service.ProjectCracker 2.0.0.4
• NamelessInteractive.FSharp.MongoDB v0.0.4
• fsharp-mode (20160205.700)
• LanguageExt.FSharp 1.7.20
• LanguageExt.Process.FSharp 1.7.20
• Trustpilot.FSharp.Flow 0.4.3
• Trustpilot.FSharp.Flow.Api 0.3.3
• FSharp.Automaton 0.2.0
• Persimmon 1.0.2

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

Previous F# Weekly edition – #5