filterIndexedTo
inline
fun
<
T
,
C
:
MutableCollection
<
in
T
>
>
Array
<
out
T
>
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
T
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Byte
>
>
ByteArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Byte
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Short
>
>
ShortArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Short
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Int
>
>
IntArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Int
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Long
>
>
LongArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Long
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Float
>
>
FloatArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Float
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Double
>
>
DoubleArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Double
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Boolean
>
>
BooleanArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Boolean
)
->
Boolean
)
:
C
(source)
inline
fun
<
C
:
MutableCollection
<
in
Char
>
>
CharArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
Char
)
->
Boolean
)
:
C
(source)
inline
fun
<
T
,
C
:
MutableCollection
<
in
T
>
>
Iterable
<
T
>
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
T
)
->
Boolean
)
:
C
(source)
@ExperimentalUnsignedTypes
inline
fun
<
C
:
MutableCollection
<
in
UInt
>
>
UIntArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
UInt
)
->
Boolean
)
:
C
(source)
@ExperimentalUnsignedTypes
inline
fun
<
C
:
MutableCollection
<
in
ULong
>
>
ULongArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
ULong
)
->
Boolean
)
:
C
(source)
@ExperimentalUnsignedTypes
inline
fun
<
C
:
MutableCollection
<
in
UByte
>
>
UByteArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
UByte
)
->
Boolean
)
:
C
(source)
@ExperimentalUnsignedTypes
inline
fun
<
C
:
MutableCollection
<
in
UShort
>
>
UShortArray
.
filterIndexedTo
(
destination
:
C
,
predicate
:
(
index
:
Int
,
UShort
)
->
Boolean
)
:
C
(source)
Appends all elements matching the given predicate to the given destination .
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
val numbers: List<Int> = listOf(0, 1, 2, 3, 4, 8, 6)
val numbersOnSameIndexAsValue = mutableListOf<Int>()
println(numbersOnSameIndexAsValue) // []
numbers.filterIndexedTo(numbersOnSameIndexAsValue) { 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.