filterNotNull

Common
JVM
JS
Native
1.0
fun < T : Any > Sequence < T ? > . filterNotNull ( ) : Sequence < T >
(source)

Returns a sequence containing all elements that are not null .

The operation is intermediate and stateless .

import kotlin.test.*

fun main(args: Array<String>) {
//sampleStart
val numbers: List<Int?> = listOf(1, 2, null, 4)
val nonNullNumbers = numbers.filterNotNull()

println(nonNullNumbers) // [1, 2, 4]
//sampleEnd
}