ExperimentalJsCollectionsApi

This annotation marks the experimental JS-collections API that allows to manipulate with native JS-collections The API can be removed completely in any further release.

Any usage of a declaration annotated with @ExperimentalJsCollectionsApi should be accepted either by annotating that usage with the OptIn annotation, e.g. @OptIn(ExperimentalJsCollectionsApi::class), or by using the compiler argument -opt-in=kotlin.js.ExperimentalJsCollectionsApi.

Since Kotlin

2.0