Ok, so, the correct way to transform a Kotlin `ByteArray` (`Int8Array`) to a `Uint8Array` is ```publ...

# javascript

[Edoardo Luppi]

Ok, so, the correct way to transform a Kotlin ByteArray (Int8Array) to a Uint8Array is

public actual inline fun Uint8Array.toKotlinArray(): ByteArray =
  Int8Array(buffer, byteOffset, byteLength).unsafeCast<ByteArray>()

@Suppress("NOTHING_TO_INLINE")
public actual inline fun ByteArray.toPlatformArray(): Uint8Array {
  val i8a = unsafeCast<Int8Array>()
  return Uint8Array(i8a.buffer, i8a.byteOffset, i8a.byteLength)
}

You basically need to specify the byte offset and byte length, otherwise the result is way off.

[turansky]

First extension with fixed name expected as PR :)

[Edoardo Luppi]

@turansky which name would suite better?

[Edoardo Luppi]

@Artem Kobzar question if you know the answer, how is the backing array buffer handled for the KJS implementation of ByteArray? Is it a sort of shared buffer, and that's why the offset is not zero?

[turansky]

@turansky which name would suite better?

toByteArray

[turansky]

Also Int8Array.asByteArray missed in your example