None

object None : Optional<Nothing>

Functions

filter

common

open override fun filter(predicate: (Nothing) -> Boolean): Optional.None

map

common

open override fun <R> map(function: (Nothing) -> R): Optional.None

toSequence

common

open override fun toSequence(): Sequence<Nothing>

toString

common

open override fun toString(): String

Properties

isAbsent

common

val isAbsent: Boolean

isPresent

common

open override val isPresent: Boolean

value

common

open override val value: Nothing?