F# Weekly #15, 2016

Welcome to F# Weekly,

A roundup of F# content from this past week:

News

• F# Software Foundation launched F# Speakers Program!
• Miguel de Icaza gives F# some reddit love #1 #2
• Check out new FsProjects status board!
• Coeffects: Context-aware programming languages
• SwaggerProvider is now a part of fsprojects family
• A faster and slicker Try WebSharper
• Functional Track talks from NDC London 2016
• Emacs F# mode now supports intellisense processes on remote hosts
• ASP .NET Core is allegedly 6x faster than node.js.
• ASP.NET Core – 2300% More Requests Served Per Second
• The week in .NET – 4/5/2016

Videos/Presentations

• From Community to Cloud with F# – Don Syme
• Designing with capabilities for fun and profit – Scott Wlaschin
• Deploying an F# Web Application with Suave – Tomas Petricek
• Dr Frankenfunctor and the Monadster – Scott Wlaschin
• Showcase 2/3 years old F# Codebase – Ramón Soto Mathiesen
• Grasshopper | Cycles | F# | Coding Session – Nathan Letwory
• The Joy of Functional GameDev Project 2 Episode 36 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 37 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 38 – Ernest Pazera
• The Joy of Functional GameDev Project 2 Episode 39 – Ernest Pazera

Blogs

• FsShelter: a Storm shell for F# – Eugene Tolmachev
• Hopac: Getting Started with Jobs – Marcus Griep
• Hosting Suave in the Azure App Service – Isaac Abraham
• The Elegant Code I Wish I Can Write In C# 7 – Dmitry Zinchenko
• Book review: Imperative to functional programming succintly
• Building a Poker Bot with Akka.NET Actors – Mikhail Shilkov
• Understanding bind – David Raab
• Creating F# lists with AutoFixture – Nikos Baxevanis
• Working with ALGLIB’s Random Decision Forests in F# – Taylor Wood
• From mutable loops to immutable folds – David Raab
• Exercises in Programming Style–Dataspaces – Yan Cui
• Sort, drag and drop in UI Next with Sortable – Kimserey Lam
• The Difference Between C# to F# Is a Scale of $20K – Michael Domingo
• Is History on Functional Programming’s Side? – Dan Mygind
• String manipulations in F# – Amit Choudhary
• Function composition and pipeline operator – Vicenç García Altés
• How to Daxif, delete all accounts (part 2) -Ramón Soto Mathiesen
• Closure-based State: F# -Ted Neward
• Introducing Paket’s caching feature – or how I fixed our broken builds -Steffen Forkmann
• Deploying Azure web applications with FAKE – Isaac Abraham

F# vNext

• Don Syme has been working on struct tuples and has submitted a PR for a prototype. Please take a look and comment
• Guide: Migrate fsproj To .NET CLI (netstandard1.5)
• Merged Coreclr support into FSharp Mainline
• Recently created F# Language Design RFCs:
  • F# RFC FS-1011 – Warn when recursive function is not tail-recursive
• Recently proposed ideas:
  • Handle null values in Records gracefully instead of crashing with a NRE
  • Implement implicit casts for yield
  • Add triple-questionmark not yet implemented operator (???) from Scala
  • Compiler directive for environment variables
  • Can we build a pre-processor so we don’t have to use the word: let ? Makes the function name standout and saves typing similar to R ?
  • Add the (..<), (>..) half-open range operators and (>..<) open range operator (from Swift)
  • Add the do .. while loops to the language (from Java, C, C++, C#)
  • Code clarity: Remove Object Pascal-style for … to|downto … do … loops from the language (from Swift)

Open source projects

• FsShelter – Author Apache Storm topologies with F# using statically-typed streams
• DependentTypesProvider – limited dependent typing via F# Type Provider
• dotnet-mergenupkg – Merge two nuget package dependencies
• KestrelFSharp -Demo of using Kestrel Http Server with F#
• kestrel-classic – Playing with .NET 4.6.1 and Kestrel

New Releases

• FAKE 4.24 with a couple of important bugfixes
• SwaggerProvider 0.4.0
• FSharp.Compiler.Service 3.0.0
• FSharp.Management 0.4.0 with Railway Oriented PowerShell Provider
• FSharp.Formatting 2.14.2
• Akka.FSharp 1.0.7
• FsYaml 2.1.0
• FusionTasks (F# 4.0) 0.5.7
• FSharp.Core.Extra 0.1.61
• fsharp-mode (20160406.1437) — F# mode for Emacs
• Bizmonger.ActivePatterns 1.0.0

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

Previous F# Weekly edition – #14