Platform and version requirements: JVM (1.0), JS (1.0), Native (1.0)

fun <C : MutableCollection<in T>, T : Any> Array<out T?>.filterNotNullTo(
    destination: C
): C

fun <C : MutableCollection<in T>, T : Any> Iterable<T?>.filterNotNullTo(
    destination: C
): C

Appends all elements that are not null to the given destination.