Kotlin: Return can be lifted out of 'when'

Question

The alternative to switch in Kotlin is when. So, inside a recycler view adapter, when I am returning view type, I use when:

Answer 1

Your when is correct, however Kotlin has the ability to lift the return out of the 'when' if you are returning in every case, thus it becomes :

override fun getItemViewType(position: Int): Int {
    return when (position) {
        0 -> ItemViewType.TITLE.type
        1 -> ItemViewType.SUBTITLE.type
        2 -> ItemViewType.ITEM.type
        else -> -1
    }
}