kotlin-stdlib / kotlin.sequences / filterNotNull

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
}