```We are trying to use kotlin multiplatform plugin in our project. We have kotlin code as follows ...

# javascript

[Ashish Kumar Joy]

We are trying to use kotlin multiplatform plugin in our project. We have kotlin code as follows

@JsName("Cart")
class Cart(val items: List<CartItem>, val totalPayableAmount: Double)
@JsName("CartItem")
class CartItem(val categoryCode: String, val totalPremium: Double)

class Validator(private val cart: Cart) {

@JsName("isValid")
fun isValid(): Boolean {
return if (cart.totalPayableAmount < 5000) {
cart.items.any { it.categoryCode == "abcd" }
} else {
false
}
}
}

When we try to use compiled js code in html, we get error as follows

`n.iterator_24 is not a function`

which we suspect is because of `any` that we have used in kotlin. Does anyone has any idea reagarding this?

We are using IR compiler

[rnett]

Can you share the JS usage code as well?

[turansky]

I IR you need use @JsExport annotation to export classes. Duplicated `@JsName`s will be redundant in this case

[Ashish Kumar Joy]

@rnett

[Ashish Kumar Joy]

Looks like we cannot use List type from JS.
https://kotlinlang.org/docs/js-to-kotlin-interop.html#kotlin-types-in-javascript

[Ashish Kumar Joy]

As per this document List, Set and Map are not mapped to any JS type

[Ashish Kumar Joy]

Is there any other document which i can refer to know what Kotlin type I should be using whose equivalent in js is object

[andrea.santurbano]

@Ashish Kumar Joy I had your same problem, please look here:
https://youtrack.jetbrains.com/issue/KT-45427