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October 8th, 2020, ISSUE 347

READING

A short guide to Blocker

A precise explanation about how to deal with blocking code using tools provided by Cats Effect.
Krzysztof Atłasik
Using: Did they forget something?

An interesting analysis of the Using resource management utility and how it can be improved.
Robin Hillyard
The assignment operator is broken!

I will try to show you this operator is broken or to be less dramatic, one very popular paradigm of programming makes it look broken.
Adrian Salajan (@adrisalajan)
cats-effect v3.0.0-M1

Cats Effect 3 is a complete redesign of the Cats Effect library, starting from first principles and building up from there.
cats-effects contributors
Attending a hackathon with Scala and Akka (Streams) on Microsoft Azure

A thorough description about lessons learned from the hackaton.
Oto Brglez (@otobrglez)
Programming Scala, Third Edition

I’m pleased to announce that an early access release for drafts of the first six chapters is now available on the O’Reilly online learning platform.
Dean Wampler (@deanwampler)

VIDEOS

Scala 3: Opaque Types

Learn how to use this practical new feature of Scala 3!
Daniel Ciocîrlan (@rockthejvm)
Elixir vs Scala

Ludwik Bukowski and Kacper Mentel compare the results of a pattern recognition app implemented in Elixir and Scala.
Ludwik Bukowski, Kacper Mentel
Tagless Final - Part 13 - parse, don't validate (The Big Rewrite)

In this video we will learn the value of strengthening our parameter types instead of our return types. This video is inspired by the blog post with the same name by Alexis King.
DevInsideYou (@DevInsideYou)

EVENTS

Functional Scala CFP

The CFP closes on October 15th
Ziverge (@zivergetech)
Functional Design, October 20th - 22nd, Online training

In this course, developers will learn how to write simple functional solutions to everyday business problems, without jargon and without type classes. Use code "ScalaTimes10" to receive 10% off at the checkout.
John A. De Goes (@jdegoes)
The Rise of Loom and the Evolution of Reactive Programming, October 22nd, Online meetup

On Thursday, October 22nd at 8:00 PM (UK time) John A. De Goes will be giving a talk to the online meetup of ZIO London.
John A. De Goes (@jdegoes)
Scale By the Bay, November 12th - 14th, online event

Starting at 3:30 PM CET. Use promo code "FUNCTIONAL" to get a 10% discount for our readers!
Scale By The Bay (@ScaleByTheBay)
Functional Data Modeling, November 18th - 19th, Online training

In this course, developers will learn how to use functional Scala to construct simple, precise, and flexible models of any business domain. Use code "ScalaTimes10" to receive 10% off at the checkout.
John A. De Goes (@jdegoes)
ZIO Hackathon, November 20th-21st, online event

Attendees of ZIO Hackathon 2020 will be able to attend talks on ZIO projects from leading open source contributors, as well as receive expert mentorship in contributing features, bug fixes, and documentation enhancements to the ZIO ecosystem of libraries.
Ziverge (@zivergetech)
Functional Scala, December 3th-4th, London

Learn the critical topics you need to excel as a Scala developer, and celebrate the Scala programming language and community.
Ziverge (@zivergetech)
Scala 3 for Scala 2 developer, December 8th - 10th, Online training

In this course, developers who are already familiar with Scala 2.x will get a high-speed introduction to all the changes coming in Scala 3, including semantic changes, syntactic changes, new features, and dropped features. Use code "ScalaTimes10" to receive 10% off at the checkout.
John A. De Goes (@jdegoes)
Functional Scala Megapack (3 workshops)

Functional Design + Functional Data Modeling + Scala 3 for Scala 2 developers. Use our special link to get a 15% discount!
John A De Goes (@jdegoes)

RELEASES

podpodge

Convert YouTube playlists to audio-only RSS feeds for podcast apps to consume. Written using akka-http + tapir + ZIO + Quill.
reibitto (@reibitto)
scala-native support for Scala 2.12

Add Scala 2.12 support for Scala Native.
Ergys Dona (@ergysdona)
sbt 1.4.0

It's here! With build server protocol (BSP) support, native thin client, new versionScheme setting, VirtualFile + RemoteCache, build linting, conditional task, incremental build pipelining, in-sourced sbt-dependency-graph and more!
sbt contributors

VARIA

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