Yes this is totally possible. Just keep in mind that right now a lot of kotlin libraries don’t support the common platform, and explicitly target either the JVM or JS. If there are specific tools you’re looking to use (such as Rx) you’ll need to either keep your common logic completely synchronous and Rx free (and implement async in platform-jvm and platform-js) or do some wrapping.

Thanks for the response! So, for example, https://github.com/rozag/kozy-redux is written entirely in Kotlin, but it should also explicitly support the common platform somehow?

That’s perfectly fine. At the end of the day I believe you should be able to compile your common stuff into what’s more or less a node module (someone correct me if I’m wrong)

On the note of libraries targeting multiplateforms: Dartlang shares this problem with Dart/Web, Dart/Server, and Dart/Flutter. Dart helps ease the pain of using and finding the right libraries with this site: https://pub.dartlang.org/ It would be great to have something similar for Kotlin where authors could tag their libraries for multiple platforms and provide documentation and links.

Having problems with all the latest stuff. I have a

common

module, a

common-js

and a

common-jvm

, and then another JVM module that depends on

common-jvm

. All compiles fine with Gradle, but the latest IntelliJ fails to compile, saying that it can’t find definitions, even though the source code is not marked red.

to add parameterized tests

the IDE complains about accessing

internal

members of the common module from a platform module, but this seems to work - is this a known issue?

Out of interest, why was it deprecated?

I would like to make

kotlin-logging

multi platform (supports also js). After watching yole video about it I still have one open question about the concept: I will create such support the lib will have 2 artifacts one for jvm and one for js. How should Application developer with multiplatfom code depend on kotlin-logging? the jvm module will depend the jvm artifact, the js module will depend js artifact, but what should the common code depend on? third artifact for common? should it be an artifact only for compilation (because js will have same classes also for example)?

@marcinmoskala Please read answer above. Looks like you need make "backend" depend on "common-jvm" and "common-jvm" depend on "common" (I think it's better merge kotlin-jvm and backend... may be)

added jitpack to https://github.com/Lewik/klogging so you are able to add it as dependency

Hi Kotlin Team, Do you plan to purpose a Number Generator (Math.Random in js / java.util.Random in java) in the Kotlin Standard Lib ? In my multiplatform project we had to implement a Linear Congruential Generator directly in pure kotlin to do the job but even if it's relatively easy to implement it's not the best option we think.

(sorry for the misthread posting @louiscad)

threads are the worst thing to happen to slack. the entirety of useful conversation abstracted behind information silos requiring that i click into each one. they needn't be used in such small channels.

I'm trying to do this setup Android App -> Android AAR -> common-jvm -> common and am having mixed success. The app can see classes in the AAR. The AAR can see classes in the common-jvm jar. The problem is that I want to have the App access classes in the common-jvm.jar but I'm not having any luck. The code can be found at https://github.com/samus/pistachio

do you have common tests?

I have something like that. https://github.com/wojta/hello-kotlin

Can I not include regular implementation code in a common module? When I create a regular class in the common module, it doesn’t seem to be visible when I depend on the JVM or JS implementation modules.

I see that

@JvmName

can be used on common modules, but

@JsName

not. Any way to set name for JS in multiplatform projects? (Problem is that JS doesn't accept names like

fun `this is name`(){}

)

I've published an article about testing common modules. I will promote it today. It would be nice to have some feedback 🙂 https://blog.kotlin-academy.com/testing-common-modules-66b39d641617

@marcinmoskala Really nice post. Good catch on asynchronous testing. I did know the workaround. 👍

Hey guys. When i am using the annotion `@JvmName`in my common code, the compiler fails to compile the JS Module using the common code. (JvmName is internal to kotlin.jvm). Is there a fix for it?

How to use Spring @LastModifiedDate with entities in kotlin common (mongo)? Any ideas?

I have a Kotlin multiplatform project, but I noticed a lot of methods recently became unresolved in IntelliJ. It looks like upgrading to the latest Kotlin version, the web module can no longer find the gradle task copyDependenciesKotlinJs. How would I fix this?

Which IDE are most people using for mutliplatform projects? Will I have to use IDEA and CLion if I want to do Android, iOS, and web?

Would anyone mind taking a look at my multiplatform JVM/JS project attempt? I wonder if I got the configuration right. https://github.com/czyzby/kotlin-multiplatform-example

Why did someone respond with rubber duck…?

I'm building a multiplatform project for js/jvm/ios that expects a sealed class. It seems to build fine for JS and JVM but for iOS i'm getting "exception: java.lang.AssertionError: expect class WriteLog: Super class should be any: actual class Operation". Are sealed classes or class hierarchies going to be supported for native compilation?

Hi, I want to try the thing that most of the Android devs wants to try now - do the multiplatform project that has shared code for android/ios written in kotlin .. Whats the best way to start? I cannot find any “tutorial 101” about what IDE to use to develop common part and platform specific parts - can I do it all in IntelliJ? Or for iOS I need CLion? Practically I am looking for some resources that summarize that 🙂