filterNotNullTo
fun
<
C
:
MutableCollection
<
in
T
>
,
T
:
Any
>
Sequence
<
T
?
>
.
filterNotNullTo
(
destination
:
C
)
:
C
(source)
Appends all elements that are not
null
to the given
destination
.
The operation is terminal .
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val numbers: List<Int?> = listOf(1, 2, null, 4)
val nonNullNumbers = mutableListOf<Int>()
println(nonNullNumbers) // []
numbers.filterNotNullTo(nonNullNumbers)
println(nonNullNumbers) // [1, 2, 4]
//sampleEnd
}