<@U33H6SB2B> was looking at the wrappers and noticed you added stuff like ```@file:JsQualifier( ...

# javascript

[Edoardo Luppi]

@turansky was looking at the wrappers and noticed you added stuff like

@file:JsQualifier(
    """({
    __type_plus_guard__: Object.setPrototypeOf({
        [Symbol.hasInstance](instance) {
            return typeof instance === 'bigint'
        }
    }, BigInt)
  })"""
)

What does this end up doing, considering this is related to externals?

[turansky]

As result - you can use as/is with BigInt type

[Edoardo Luppi]

Thanks. But why using JsQualifier ? Is that an intended use?

[turansky]

But why using JsQualifier ?

Because it works 🙂

[turansky]

Is that an intended use?

No 🙂

[turansky]

But it allows to be aligned with future Kotlin implementation

[Edoardo Luppi]

Sounds good then! Thanks!

[turansky]

Nearest example Array for which you need to use special checks

[turansky]

Common request - custom as/is for external types, but it doesn’t look like nearest future

[Ayfri]

How do you know what future implementation will be, is there a KEEP or an issue on YouTrack about this ?

[turansky]

We already have primitive types in stdlib with special is check

[turansky]

Current implementation of BigInt aligned with String