ISSUE #332

11th of December 2022

Announcements

Kotlin Weekly is on Mastodon
Kotlin Weekly is now on Mastodon. Make sure you follow us there, to get Kotlin updates every Sunday.
kotlin.social

Articles

Slowing down your code with Coroutines
Can a Coroutine slow down your code? Jan Vladimir Mostert analyses in this article how and when this can happen.
kt.academy

Testable Database Repositories in Kotlin
Andrew O'Hara analyses in this article how to get perfect test coverage for your SQL and DynamoDB code.
betterprogramming.pub

A birds-eye view of Arrow: Error Handling
Learn about Error Handling in Arrow, end how to effectively work with Either in this article written by Simon Vergauwen.
kt.academy

A few Kotlin constructs
Kaushik Gopal wrote this article as a public service advisory to remind us why several important Kotlin language constructs are important.
kau.sh

Videos

Threads vs Coroutines - ParallelMap Performance
In this episode Duncan McGregor implements a parallelMap operation using streams, raw threads, a threadpool with futures, and coroutines, and analyses their performance.
www.youtube.com

collect, first, last, single, toSet, toList, fold, reduce
Do you want to know how and when to use the above Kotlin Flow terminal operators? Lukas Lechner explains it in this video.
www.youtube.com

Advent of Code 2022 in Kotlin
Check out all the previous and scheduled videos from JetBrains for the Advent of Code 2022!
www.youtube.com

Podcast

Growing from MIDDLE to SENIOR developer with Marcin Moskala
Marcin Moskala speaks in this episode of Talking Kotlin about what distinguishes a mid-level developer from a senior one, and how do you make the leap.
talkingkotlin.com

Libraries

KStore
KStore is a tiny Kotlin multiplatform library that assists in saving and restoring objects to and from disk using Coroutines, kotlinx.serialisation and Okio.
github.com

Zipline
Zipline streamlines using Kotlin/JS libraries from Kotlin/JVM and Kotlin/Native programs. It makes it fetching code as easy as fetching data.
github.com

Analytics
Analytics is a Kotlin Multiplatform library that acts as a simple facade or abstraction for analytics.
github.com

Circuit
Circuit is a simple, lightweight, and extensible framework for building Kotlin applications that are Compose from the ground up.
slackhq.github.io

Mendable
A CLI tool to convert multi-module Jetpack Compose compiler metrics into beautiful HTML reports
github.com

Contribute

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Andrew OHara analyses Kotlin Flow terminal operators tiny Kotlin multiplatform library Jan Vladimir Mostert Testable Database Repositories perfect test coverage public service advisory beautiful HTML reports

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