filterIndexed
inline
fun
ShortArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
Short
)
->
Boolean
)
:
List
<
Short
>
(source)
inline
fun
FloatArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
Float
)
->
Boolean
)
:
List
<
Float
>
(source)
inline
fun
DoubleArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
Double
)
->
Boolean
)
:
List
<
Double
>
(source)
inline
fun
BooleanArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
Boolean
)
->
Boolean
)
:
List
<
Boolean
>
(source)
@ExperimentalUnsignedTypes
inline
fun
ULongArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
ULong
)
->
Boolean
)
:
List
<
ULong
>
(source)
@ExperimentalUnsignedTypes
inline
fun
UByteArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
UByte
)
->
Boolean
)
:
List
<
UByte
>
(source)
@ExperimentalUnsignedTypes
inline
fun
UShortArray
.
filterIndexed
(
predicate
:
(
index
:
Int
,
UShort
)
->
Boolean
)
:
List
<
UShort
>
(source)
Returns a list containing only elements matching the given predicate .
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val numbers: List<Int> = listOf(0, 1, 2, 3, 4, 8, 6)
val numbersOnSameIndexAsValue = numbers.filterIndexed { index, i -> index == i }
println(numbersOnSameIndexAsValue) // [0, 1, 2, 3, 4, 6]
//sampleEnd
}
Parameters
predicate
- function that takes the index of an element and the element itself
and returns the result of predicate evaluation on the element.