Any suggestions for generating a TypeScript library in a multiplatform project? I realize I could ...

# multiplatform

[Justin]

Any suggestions for generating a TypeScript library in a multiplatform project?

I realize I could just manually create all the type definitions inside the JS build product, but that would be, well, manual.

[Derek Ellis]

Have you tried the TypeScript type definition generation preview in 1.4?

[Justin]

I have tried updating my Kotlin and JS plugin versions to 1.4-M1 and am able to build my project but I still don’t see any TS defs in my JS build product. I also set the compiler to ir in gradle.properties, FWIW. This is for creating a node library to be used in a separate typescript-based React app.

[Justin]

Relatedly, is there a new version of kotlinx.serialization that’s compatible with Kotlin 1.4?

[Derek Ellis]

You have to enable the new IR backend

[Derek Ellis]

And yeah, there's 1.4 compatible versions of all(?) the official libraries. They're mentioned on the 1.4-M1 blog post

[Justin]

@Derek Ellis where do I find the typescript definitions though? they aren’t in the js build product

[Derek Ellis]

I don't think they include them in distributions, but if you just run the webpack task, they'll be in your build

[Justin]

hmmm where is the webpack task? do i need to add it to my build gradle somehow?

[Derek Ellis]

I think it's under the "other" category. I usually just run jsBrowserWebpackDevelopment (or Node if you're using that target)

[Derek Ellis]

It should be added automatically with your js target(s)