Kotlin HashSet mapNotNull()
Syntax & Examples

Syntax of HashSet.mapNotNull()

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

fun <T, R : Any> Iterable<T>.mapNotNull( transform: (T) -> R? ): List<R>

This mapNotNull() extension function of HashSet returns a list containing only the non-null results of applying the given transform function to each element in the original collection.