kotlinlang #feed

We’ve just announced an event about Kotlin in London at the end of November: https://twitter.com/KotlinDay/status/1181550599218880513 Hope to see you there 🙂

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:kotlin-flag: 1

sashjakk

10/09/2019, 7:11 AM

Hey, my first attempt on blogging about code generation with :kotlin: Will be glad to hear about your similar experience 😊 https://link.medium.com/BoaxGjNGD0

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TanVD

10/14/2019, 10:30 AM

Hi all! Kotless version 0.1.1 was released (https://github.com/JetBrains/kotless) Kotless stands for Kotlin serverless framework, it aims to reduce the routine of serverless deployment creation and generates it straight from the code of the application itself. Right now it supports deployment to AWS of API Gateway, scheduled jobs, granular permissions granting, static resources and so on. Take a look and join the discussion in #kotless

:kotlin: 8

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marcinmoskala

10/21/2019, 8:02 PM

https://blog.kotlin-academy.com/the-problem-with-extension-functions-dffd22eb5df9

:kotlin: 1

⭐ 1

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louis993546

10/22/2019, 6:45 AM

https://medium.com/@louis993546/mental-models-of-jetpack-compose-3-inheritance-composition-and-why-they-matter-9a04dc874511

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Simon Schubert

10/24/2019, 8:28 AM

Kotlin Mulitplatform - Jetpack Compose/SwiftUI/CLI/Web - Math, Memory, Focus Trainer App 🧠 https://braincup.schubert-simon.de - Web version is free and ios/android app will be free too tomorrow

adrianbukros

10/28/2019, 10:15 AM

https://www.kotlindevelopment.com/inline-classes/

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Hitanshu Dhawan

10/30/2019, 1:43 AM

JsonDSL It is a DSL in Kotlin for creating your JSON in a more easy and readable way. Do check it out! https://github.com/hitanshu-dhawan/JsonDSL

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alex009

10/30/2019, 4:15 PM

Hi everyone, We at IceRock have published our MOKO libraries for Kotlin Multiplatform mobile development . Please see the full list of libs on the landing page: https://moko.icerock.dev MOKO includes: • architecture lib - MVVM components; • mobile specific libs - runtime permissions, localization resources, media access; • codegeneration for ktor-client; • composite items for RecyclerView/UITableView/UICollectionView from common code (from ViewModel in our case); • @Parcelize support. We also have a MOKO template project on GitHub (https://github.com/icerockdev/moko-template) for a fast start. In the template project you can see: • kotlin multiplatform project for ios and android with kotlin gradle dsl; • multi-module architecture; • example of two features (form and list of items); • integration of multiplatform library in an ios app via cocoapods. We'll be happy to hear from you on the #moko channel.

:kotlin: 7

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nfrankel

11/03/2019, 5:51 PM

https://blog.frankel.ch/kotlin-operators/

jmfayard

11/04/2019, 9:01 AM

Java and Javascript are similar like Car and Carpet are similar.

I am a backend developer, but two thirds of the job offers I get are Android related. This was getting annoying so I wrote down this simple reminder to clear out the confusion: => Kotlin is not, in fact, the same thing as Android Feel free to use this if you get unsollicited offers to do Android development. https://blog.kotlin-academy.com/kotlin-is-not-android-c96984730c35

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Dariusz Kuc

11/05/2019, 3:20 PM

Hello! We just published a first story in a series that highlights different parts of

graphql-kotlin

library. Post today highlights how

graphql-kotlin-schema-generator

can be used to generate your GraphQL schemas directly from your source code - https://medium.com/expedia-group-tech/creating-graphql-schemas-in-kotlin-aaaac0ab0672 Stay tuned for the next posts in the series that will highlight federation and spring server modules!

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gaetan

11/08/2019, 7:18 AM

https://blog.data2viz.io/post/ktor-vs-axios-vs-for-kotlin-js/

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marcinmoskala

11/12/2019, 11:59 AM

https://blog.kotlin-academy.com/mastering-kotlin-scoped-and-higher-order-functions-23e2dd34d660

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jmfayard

11/18/2019, 9:06 AM

Necessity is the mother of all inventions. I had no MacBook Pro available so I investigated what kind of programming I could do on my Chromebook. Answer: Chromebook can do more than what you think. It's not perfect but there is a lot of potential. You can run all Android apps, Debian Strech or another Linux container, IntelliJ IDEA, Android Studio, Visual Studio Code, .... https://dev.to/jmfayard/coding-on-a-chromebook-4pmp

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s1m0nw1

11/21/2019, 7:19 AM

Serverless Kotlin via OpenFaaS, the most popular open-source FaaS framework: https://kotlinexpertise.com/serverless-kotlin/

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marcinmoskala

11/25/2019, 7:13 AM

https://blog.kotlin-academy.com/show-download-progress-in-a-recyclerview-with-ktor-client-and-flow-asynchronous-data-stream-9debab3d2cb6

ankushg

11/26/2019, 5:27 AM

Just published my blog post about shared code at Quizlet -- and why we're now using Kotlin Multiplatform to power (very specific) business logic for over 50 million learners around the world per month: https://medium.com/tech-quizlet/shared-code-at-quizlet-kotlin-multiplatform-2ee1b57646c?source=friends_link&sk=f7c864464fe94552ed208e96b8a897f5 (Will also be giving a talk with real perf numbers at droidcon SF tomorrow at 3pm for folks who are there!)

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pablisco

11/26/2019, 12:27 PM

https://twitter.com/KotlinDay/status/1199301795677425665

:kotlin: 2

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kpgalligan

11/27/2019, 12:08 AM

https://twitter.com/kpgalligan/status/1199479922663686144?s=20

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marcinmoskala

11/29/2019, 2:20 PM

https://blog.kotlin-academy.com/effective-kotlin-printed-version-1076df1607bd

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Dariusz Kuc

12/03/2019, 2:30 PM

Hello! We just published a third story in a series that highlights different parts of

graphql-kotlin

library. Post today highlights how easy it is to create reactive GraphQL web applications in Kotlin using

graphql-kotlin-spring-server

-> https://medium.com/expedia-group-tech/creating-a-reactive-graphql-server-with-spring-boot-and-kotlin-54aca7316470 We will be presenting

graphql-kotlin

this Thursday @kotlinconf (4:15 GMT+1). You can sign up for the streams at https://kotlinconf.com/

😒uspend: 2

:kotlin: 2

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Joris PZ

12/03/2019, 7:37 PM

https://medium.com/ing-blog/introducing-kotlin-at-ing-a-long-but-rewarding-story-1bfcd3dc8da0

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Madalin Valceleanu

12/04/2019, 8:17 AM

📚 Android Sample App using modular, clean, scalable, testable Architecture written in Kotlin that presents modern 2019 approach to Android application development, latest tech-stack and best practices. Application is based, apply and strictly complies with each of the following 5 points: • A single-activity architecture, using the Navigation component to manage fragment operations. • Android architecture components, part of Android Jetpack give to project a robust design, testable and maintainable. • Pattern Model-View-ViewModel (MVVM) facilitating separation of development of the graphical user interface. • S.O.L.I.D design principles intended to make software designs more understandable, flexible and maintainable. • Modular app architecture allows being developed features in isolation, independently from other features. For more technical details please check the project readme. Project link: https://github.com/VMadalin/kotlin-sample-app

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LeoColman

12/09/2019, 11:27 PM

I know not many people need this kind of tool, but... We just released a new version of Fixed Length File Parser! 😄 🎉 https://github.com/GuiaBolso/fixed-length-file-handler/releases/tag/0.3.0

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Tim Schraepen

12/10/2019, 9:58 AM

Doing #AdventOfCode challenges in Kotlin. Live from the Kunlabora offices! Come help me out! <https://twitch.tv/livecodingwithsch3lp>

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Malvin Sutanto

12/10/2019, 10:08 AM

<https://medium.com/wantedly-engineering/managing-android-multi-module-project-with-gradle-plugin-and-kotlin-4fcc126e7e49>?

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Casey Brooks

12/10/2019, 4:30 PM

I’m releasing a major update to Orchid today, which includes significant improvements to its Dokka integration https://twitter.com/OrchidSSG/status/1204433075586949120

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nfrankel

12/15/2019, 6:13 PM

https://blog.frankel.ch/even-more-readable-code-without-if-else/

Title

nfrankel

12/15/2019, 6:13 PM

https://blog.frankel.ch/even-more-readable-code-without-if-else/

Daniel

12/15/2019, 7:44 PM

Hi and a huge thanks for your blog! Its a nice exercise but to be honest I would ding it in a code review. The resulting code need in my opinion much more "brain processing power" to unserstand than the simple if else. There is too much happening in the lines of code. Use some private methods

if(..) {
 doSomething()
} else if(...) {
 doSomethingElse()
}

and you are good to go and will understand it even after you were away from the code for some time

💯 5

On top of it you loose a lot of flexibility. You can rewrite the code once there is a case in the future where the signatures of the "do" methods differ

nfrankel

12/15/2019, 9:28 PM

Hi and a huge thanks for your blog!

thanks 🙂

You can rewrite the code once there is a case in the future where the signatures of the “do” methods differ

if believe this is pretty clear if you don’t want to go the full way on the opposite, i would advise to start with the full map things, and only then revert one level back if the signatures start diverging

in all cases, i appreciate your input 👍

Daniel

12/15/2019, 9:48 PM

Its really nice to talk about this stuff! 🙂 For example the one dimensional mapping ("A" to 1) I find a really great idea. Only once things go beyond this I personally find it hard to grasp. Its really a fine line in programming!

nfrankel

12/15/2019, 10:08 PM

Its really a fine line in programming!

yep, i wouldn’t bet any part of my anatomy on it

thana

12/16/2019, 7:30 AM

I don't get it. Why would you put your stuff in a map, when, instead, you could easily write

when(input) {
  "A" -> 1
  "B" -> 2
  "C" -> 3
}

? And taking that further, imagine a scenario where you'd be tempted to use a

sealed class

or an

enum

as map keys? Why give up on the exhaustiveness check?

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Alexander Romanov

12/16/2019, 3:10 PM

yeap, it sounds a bit like bringing java tricks into kotlin I was doing similar stuff in C#, but in Kotlin

when

is as expressive, so map doesn’t bring anything to the table

nfrankel

12/16/2019, 3:38 PM

i believe it does if you have multiple clauses to check you might try yourself with 2

&&

it’s imho much harder to read

Alexander Romanov

12/16/2019, 3:44 PM

when (var1 to var2) {
"a" to "b" -> …
"a" to "c" -> …
}

✔️ 1

👍 1

and of course you are not limited to pair, you can use any other data class. In a domain where this kind of code makes sense, probably there is a better name than Pair for the combination of those two keys

nfrankel

12/16/2019, 4:44 PM

ah, ok, you still match on

Pair

i understand

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