kotlin-stdlib/kotlin.js/JsReference

JsReference

@ExperimentalWasmJsInterop
typealias JsReference<T> = Any(source)

Since Kotlin

2.2
@ExperimentalWasmJsInterop
actual sealed external interface JsReference<out T : Any> : JsAny(source)

JavaScript value that can serve as a reference for any Kotlin value.

In JavaScript, it behaves like an immutable empty object with a null prototype. When passed back to Kotlin/Wasm, the original value can be retrieved using the get method.

Since Kotlin

1.8

Functions

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@ExperimentalWasmJsInterop
actual fun JsPromiseError.asJsException(): JsException
Since Kotlin 2.2
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@ExperimentalWasmJsInterop
actual inline fun <T : Any> JsReference<T>.get(): T
Since Kotlin 2.2
@ExperimentalWasmJsInterop
actual fun <T : Any> JsReference<T>.get(): T

Retrieve original Kotlin value from JsReference

Since Kotlin 1.8
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@ExperimentalWasmJsInterop
fun JsAny.toThrowableOrNull(): Throwable?

For a Dynamic value caught in JS, returns the corresponding Throwable if it was thrown from Kotlin, or null otherwise.

Since Kotlin 1.8
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@ExperimentalWasmJsInterop
actual inline fun <T : JsAny> JsAny.unsafeCast(): T
Since Kotlin 2.2
@ExperimentalWasmJsInterop
actual fun <T : JsAny> JsAny.unsafeCast(): T

Cast JsAny to other Js type without runtime check

Since Kotlin 1.8