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Kotlin Weekly - Kotlin Weekly #329

 
 

ISSUE #329

20th of November 2022
 

Hello Kotliners! We now have a Mastodon account, you can follow us there: kotlin.social/@KotlinWeekly. We will be posting from now on both Twitter and Mastodon. We are also running a Mastodon instance, in case you want to register. See the details below. Enjoy your upcoming week!



Announcements


How Kotlin Is Going To Fix Your Pains in 2023
The data from the first Kotlin Developer Survey is ready. JetBrains is sharing it with us now. Check out how satisfied are Kotlin users and their potential painpoints.
blog.jetbrains.com

New Mastodon server: kotlin.social
We have created a new Kotlin Mastodon instance. kotlin.social. Feel free to join using the link above!
kotlin.social



Articles


Kotlin Coroutines use cases for Data/Adapters Layer
How can we use Kotlin Coroutines in the Data/Adapters Layer? How do we use callback or blocking functions? This excerpt from the book Kotlin Coroutines answers those questions.
kt.academy

How to improve the quality of tests using mutation testing
In this article, Matthias Schenk introduces mutation testing, and shows how this can help improve the quality of tests in a Kotlin project.
medium.com

Reactive REST API with Micronaut and MongoDB
Piotr from Codersee showcases how to implement a Reactive REST API with Micronaut and MongoDB (+ Project Reactor).
codersee.com

Use More Named Arguments in Kotlin
Jacques Smuts makes a case to use named arguments more often in Kotlin.
jacquessmuts.github.io



Android


Compose Snippets
Vinay Gaba has created Compose Snippets, bite-sized code snippets for common Jetpack Compose problems.
www.jetpackcompose.app

Building StateFlows in Android with Jetpack Compose
In this video from the Droidcon New York, Mohit Sarveiya shows how to build StateFlows using Compose.
www.droidcon.com



Videos


Using First-class Functions to Fake Effects
This new video of Duncan McGregor explores where a Test Driven Development implementation of the Gilded Rose stock control system takes us in Kotlin, migrates a map to hold lambdas rather than return values, allowing us to test our stateful retry logic in an elegant way.
www.youtube.com

Easy SharedPreferences with Delegated Properties in Kotlin
In this video, Dave Leeds shows how Kotlin's delegated properties work, by turning Android's SharedPreferences into a delegate.
www.youtube.com



Libraries


Fixtures
Fixtures is a library that helps us to instantiate data classes for our tests easily.
github.com

Info Kotlin Process Plugin
Inaki Villar presents us with his new Plugin: a Plugin to Include information about Kotlin processes in the Build Scans or in the build output.
github.com

Contribute

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Thanks to JetBrains for their support!
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Key phrases

Test Driven Development implementation first Kotlin Developer Survey Info Kotlin Process Plugin new Kotlin Mastodon instance Reactive REST API stateful retry logic Droidcon New York New Mastodon server More Named Arguments bitesized code snippets Jetpack Compose problems

Older messages

Kotlin Weekly #328

Sunday, November 13, 2022

ISSUE #328 13th of November 2022 Greetings Kotliners! This week was the 12-year anniversary of the initial commit in the Kotlin repository. This has changed the life of many of us and how we spend most

Kotlin Weekly #327

Sunday, November 6, 2022

ISSUE #327 6th of November 2022 Hello Kotliners. Last week has been a terrible one for many of us. Multiple layoffs across the industry have reminded us of our vulnerability in an economic downturn. If

Kotlin Weekly #326

Sunday, October 30, 2022

ISSUE #326 30th of October 2022 Announcements KotlinConf 2023 Is Going Global It's been three years since the KotlinConf 2019 Global. Now JetBrains has announced that KotlinConf will be back in

Kotlin Weekly #325

Sunday, October 23, 2022

ISSUE #325 23rd of October 2022 Articles Nullability in Java and Kotlin How does support for nullable types in Kotlin work? How does Kotlin process types from Java? Get answers to these and other

Kotlin Weekly #324

Sunday, October 16, 2022

ISSUE #324 16th of October 2022 Hi Kotliners! This is one of the most exciting issues we have sent in a long time, and it could have been called the 'Special KMP edition'. Kotlin Multiplatform

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