Folks? is anybody consuming kotlin/native made lib...

# javascript

[McEna]

Folks? is anybody consuming kotlin/native made libraries from javascript/typescript projects? I've been reading, but I really could use a few pointers.

[napperley]

Are you referring to Kotlin JS or JS/TS? As far am I'm aware there isn't a system in place where there is bi-directional interop between Kotlin JS and Kotlin Native.

[McEna]

consuming a kotlin/native generated JS file from a separated JS/TS project. I want to ship a bunch of logic into several platforms at once, so kotlin perfectly fits the bill. The only problem is, I need to put the resultant JS files into several typescript projects, and I'm not really a JS guy.

[napperley]

Does Kotlin Native have the ability to generate a JS file? Are you talking about WASM?

[McEna]

kotlin does generate JS files, but I don't understand how to import them into other projects, or how to configure kotlin to make them more readable. I see modifiers like 'external' applied to Kotlin/Js files, but I don't get the purpose of them, for example

[napperley]

The external keyword ( https://kotlinlang.org/docs/reference/js-interop.html#external-modifier ) indicates which declaration (part of a JS API) can be consumed in Kotlin code.

[bashor]

You can consume js files generated from Kotlin as usual JS file/library. You can find more info here https://kotlinlang.org/docs/reference/js-to-kotlin-interop.html

[bashor]

By default kotlin compiler generates plain JS, but maybe if want you can configure it to use JS module system, any of AMD, CommonJS or UMD

[bashor]

More info about modules is here https://kotlinlang.org/docs/reference/js-modules.html

[bashor]

And here you can find info about how to call JS from Kotlin: https://kotlinlang.org/docs/reference/js-interop.html

[bashor]

In addition — first message slightly confusing since Kotlin/Native is one of platform of Kotlin and you can’t use it (Kotlin/Native) to get JS (but you can get WASM with it). For JS we have Kotlin/JS 🙂

[McEna]

So if I want to create a javascript 'library' using common logic implemented in kotlin/native, I would need to create a kotlin/js integration layer in order to get a commonJS formatted file? So far I've been trying to import the kotlin/native generated file into a typescript to no avail

[bashor]

what do you mean by “common logic implemented in kotlin/native”?

[bashor]

There are one language — Kotlin and few backends(platforms), namely (JVM, JS and Native)

[bashor]

so if you need to target two or more backends(platforms) you should use multiplatform feature https://kotlinlang.org/docs/reference/multiplatform.html