F# Weekly #34, 2016

Welcome to F# Weekly,

A roundup of F# content from this past week:

I've been working on tools for open data-driven articles. Follow @thegamma_net and see #Olympics medals demo: https://t.co/BI04tGNhUw #ddj

— Tomas Petricek (@tomaspetricek) August 9, 2016

News

• “Hello, World!” in #Fable, the F#-to-JavaScript compiler
• PowerShell is now open-source, and cross-platform
• The week in .NET – 8/16/2016
• Restore most serialization implementations in coreclr
• Introducing the .NET Framework Monthly Rollup

Are you using or learning F#? Join us at https://t.co/b0SSZiIFh5 and get involved with the Community on Slack! #fsharp

— fsharp.org (@fsharporg) August 15, 2016

Videos/Presentations

• Functional Programming with F# – Part 2 [Episode 002]

Exciting news! The Book of F# is available in the Joy of Coding Humble Bundle! Grab yours today! https://t.co/Efx5WhZtjH

— Dave Fancher (@davefancher) August 17, 2016

Blogs

• Adventures in F# Performance – Jack Mott
• Basic Regression Tree – Mathias Brandewinder
• JSON Monadic Transformers – Mårten Rånge
• Fable |> React – Running an F# Sudoku solver everywhere – Steffen Forkmann
• OOP in FSharp – How to define and implement classes, abstract classes and interfaces – Kimserey Lam
• FAKE your way to ASP.NET Core on Azure WebApps, part 1 – The Problem – Jakub Fijałkowski
• Wire – Writing one of the fastest .NET serializers – Roger Johansson
• 60 Days of Euler in F# – Problem 7 – Bryan Slatner
• 60 Days of Euler in F# – Problem 8 – Bryan Slatner
• 60 Days of Euler in F# – Problem 9 – Bryan Slatner
• 60 Days of Euler in F# – Problem 10 – Bryan Slatner
• 60 Days of Euler in F# – Problem 11 – Bryan Slatner
• 60 Days of Euler in F# – Problem 12 – Bryan Slatner

F# vNext

• Merged: Removing recursion in array.fs where it is may be worthwhile
• Merged: Speed up all the array.fs for loops
• Merged: New Array.filter – better memory usage
• Merged: faster Array.averageBy, and some cleanup
• Merged: added optimization when doing set difference from an empty set
• Fixed: Impossible error when writing impossible pattern matching
• Merged: Change task cancellation behaviour on awaited untyped tasks
• Recently proposed ideas:
  • Relax indentation rules on Records

Open source projects

Fable has a new Twitter account! Follow it for cool news about web, mobile and desktop development with #fsharp.

— Fable Compiler (@FableCompiler) August 17, 2016

• fable-fuse-samples
• Higher -A lightweight library of abstractions for Higher-kinded programming in F#

Want to know more about how to write #elmlang like apps in #fsharp with @FableCompiler, samples for virtualdom: https://t.co/p2Xh8pbwui

— Tomas Jansson (@TomasJansson) August 20, 2016

New Releases

• Ionide F# 2.0 for VS Code
• SwaggerProvider 0.5.5
• FSharp.Configuration 0.6.2
• FSharp.Management 0.4.2
• FeldSpar 1.2.0.1

New release of Ionide #fsharp for @code… including new F# compiler error messages, and performance improvements. pic.twitter.com/ibClBnYpKD

— Ionide (@IonideProject) August 14, 2016

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

Previous F# Weekly edition – #33