:wave: Hi everyone! :slightly_smiling_face: In our first KMP (JS) project we're just experimenting e...

# javascript

[István Mészáros]

👋 Hi everyone! 🙂 In our first KMP (JS) project we're just experimenting everything and tried to enable ES6 classes via:

tasks.withType<KotlinJsCompile>().configureEach {
    kotlinOptions {
        useEsClasses = true
    }
}

In the generated typescript definitions we see:

static fromString(value: string, $box: Nullable<BigDecimal>): BigDecimal;

The corresponding Kotlin source is:

@JsName("fromString")
    actual constructor(value: String) : this(BigNumber(value), scaleOf(value))

Why the argument $box is added to the generated TS code? It's not there if ES6 classes are disabled. We use Kotlin 1.9.21 Thanks in advance!

[Artem Kobzar]

Hey. Could you share please the code that you annotated with the JsExport annotation. It could be added inside inner classes constructors.

[István Mészáros]

Hi Artem! I created a repo to demonstrate the issue: https://github.com/imeszaros/box-issue
I also pushed the dist directory to see what output I got: https://github.com/imeszaros/box-issue/blob/master/build/dist/js/productionLibrary/box-issue.d.ts

I hope this helps! Thaks a lot for your effort!

[Edoardo Luppi]

That's some neat way of declaring static methods without a companion, it seems.
I'm not sure that use case was ever intended to be applicable.

[Edoardo Luppi]

If it indeed wasn't, I like it! But maybe proper support for statics would be better.