Kotlin HashSet requireNoNulls()
Syntax & Examples

Syntax of HashSet.requireNoNulls()

The syntax of HashSet.requireNoNulls() extension function is:

fun <T : Any> Iterable<T?>.requireNoNulls(): Iterable<T>

This requireNoNulls() extension function of HashSet returns an original collection containing all the non-null elements, throwing an IllegalArgumentException if there are any null elements.