Hi :wave: . I'm struggling a bit with execution environments. I just got `Please choose a JavaScript...

# javascript

[mbonnin]

Hi 👋 . I'm struggling a bit with execution environments. I just got Please choose a JavaScript environment to build distributions and run tests. . I understand the need to specify browser or nodejs for running tests but how does that impact building distribution? I'm building a lib and I would expect the lib to be consumed from both browser and nodejs project so it feels weird having to chose one there.

[Big Chungus]

That's impossible with kotlin js unfortunately

[Big Chungus]

It must be either browser or node, but not both

[mbonnin]

Wait so how do I make it so that both types of consumers can use my lib?

[mbonnin]

Should I duplicate the publication somewhow?

[Big Chungus]

Not sure it's even possible, since kjs isn't es6 compatible.

[Big Chungus]

You might try to build a lib for browser yet consume it from nodejs project. Might work depending on what native APIs you use

[mbonnin]

Another strange thing. Looking at the Gradle metadata for okio , nothing tells if it's browser or node. So I'm guessing it will just throw at compile time because of ... something??

[mbonnin]

Might work depending on what native APIs you use

Ah, maybe that's what's happening with okio. It's "just" plain js without any specific API so consuming from both is working?

[mbonnin]

I'm going to try to run a diff between browser.klib and node.klib see what changes.

[mbonnin]

(there are no separate Gradle tasks for browser vs node so I suspect it should be identical)

[Big Chungus]

There are when you register either

[mbonnin]

There are differences?

[mbonnin]

$ diff -s browser.klib node.klib 
Files browser.klib and node.klib are identical

[mbonnin]

Which makes sense because I called jsIrJar

[Big Chungus]

Names differ at least

[mbonnin]

I made the rename myself to avoid having them overwriting each other

[Big Chungus]

jsBrowserProductionExecutable vs jsNodeProductionExecutable

[mbonnin]

(cp apollo-api/build/libs/apollo-api-jsir-3.0.0-alpha08-SNAPSHOT.klib browser.klib )

[mbonnin]

Yup, I suspect it's an "executable" thing

[mbonnin]

But for libs, I don't need "executable"

[uli]

you can make your project multiplatform and add a node and a browser target

[mbonnin]

@uli my problem is that tests do not run on browser (because they use http )

[mbonnin]

So I'm tempted to just use nodejs() . The wording of this initial message confused but I think it's fine as I don't care about the main executable

[mbonnin]

Opened https://youtrack.jetbrains.com/issue/KT-49137