A modern programming language that makes developers happier.

kotlinlang

Hello. I'm trying to make a Ring UI Table mappings for Kotlin. There is a class named "Selection". It contains set of selected items (which is represented by JS class Set). However, when I tried to map it like that:
```fun getSelected(): Set&lt;RowData&gt;
fun getActive(): Set&lt;RowData&gt;```
and then trying to access this set using `for (selected in selection.getSelected()){..}`  in browser it throws `Uncaught TypeError: it.getSelected().iterator is not a function` .
By looking at Kotlin/JS documentation I see that Kotlin collections does not map to any specific class in JS ("Kotlin collections (`List`, `Set`, `Map`, and so on) are not mapped to any specific JavaScript type."). So, my question: is it okay to publish mapping like that or is there a better way to do that mapping? (like custom Set class, or anything else...)

From there you can declare js set as external and initiate it with that array

```@JsName("Set")
external class JsSet
...```

So, did I understood you correctly that I need to create a typing for a JS Set?

`lib.dom.d.ts` (and similar) from IDEA is fine as source