copyOf

Returns new array which is a copy of the original array.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
Open in Playground →
Target: JVMRunning on v.2.1.20

@ExperimentalUnsignedTypes

inline fun UIntArray.copyOf(newSize: Int): UIntArray(source)

@ExperimentalUnsignedTypes

inline fun ULongArray.copyOf(newSize: Int): ULongArray(source)

@ExperimentalUnsignedTypes

inline fun UByteArray.copyOf(newSize: Int): UByteArray(source)

@ExperimentalUnsignedTypes

inline fun UShortArray.copyOf(newSize: Int): UShortArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with zero values.

Since Kotlin

1.3

expect fun <T> Array<T>.copyOf(): Array<T>(source)

expect fun ByteArray.copyOf(): ByteArray(source)

expect fun ShortArray.copyOf(): ShortArray(source)

expect fun IntArray.copyOf(): IntArray(source)

expect fun LongArray.copyOf(): LongArray(source)

expect fun FloatArray.copyOf(): FloatArray(source)

expect fun DoubleArray.copyOf(): DoubleArray(source)

expect fun BooleanArray.copyOf(): BooleanArray(source)

expect fun CharArray.copyOf(): CharArray(source)

Returns new array which is a copy of the original array.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
Open in Playground →
Target: JVMRunning on v.2.1.20

expect fun ByteArray.copyOf(newSize: Int): ByteArray(source)

expect fun ShortArray.copyOf(newSize: Int): ShortArray(source)

expect fun IntArray.copyOf(newSize: Int): IntArray(source)

expect fun LongArray.copyOf(newSize: Int): LongArray(source)

expect fun FloatArray.copyOf(newSize: Int): FloatArray(source)

expect fun DoubleArray.copyOf(newSize: Int): DoubleArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with zero values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

expect fun BooleanArray.copyOf(newSize: Int): BooleanArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with false values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with false values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

expect fun CharArray.copyOf(newSize: Int): CharArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null char (\u0000) values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null char (\u0000) values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

expect fun <T> Array<T>.copyOf(newSize: Int): Array<T?>(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun <T> Array<T>.copyOf(): Array<T>(source)

actual inline fun ByteArray.copyOf(): ByteArray(source)

actual inline fun ShortArray.copyOf(): ShortArray(source)

actual inline fun IntArray.copyOf(): IntArray(source)

actual fun LongArray.copyOf(): LongArray(source)

actual inline fun FloatArray.copyOf(): FloatArray(source)

actual inline fun DoubleArray.copyOf(): DoubleArray(source)

actual fun BooleanArray.copyOf(): BooleanArray(source)

actual fun CharArray.copyOf(): CharArray(source)

Returns new array which is a copy of the original array.

Since Kotlin

1.1

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun ByteArray.copyOf(newSize: Int): ByteArray(source)

actual fun ShortArray.copyOf(newSize: Int): ShortArray(source)

actual fun IntArray.copyOf(newSize: Int): IntArray(source)

actual fun LongArray.copyOf(newSize: Int): LongArray(source)

actual fun FloatArray.copyOf(newSize: Int): FloatArray(source)

actual fun DoubleArray.copyOf(newSize: Int): DoubleArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with zero values.

Since Kotlin

1.1

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun BooleanArray.copyOf(newSize: Int): BooleanArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with false values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with false values.

Since Kotlin

1.1

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun CharArray.copyOf(newSize: Int): CharArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null char (\u0000) values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null char (\u0000) values.

Since Kotlin

1.1

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun <T> Array<T>.copyOf(newSize: Int): Array<T?>(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null values.

Since Kotlin

1.1

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun <T> Array<T>.copyOf(): Array<T>(source)

actual inline fun ByteArray.copyOf(): ByteArray(source)

actual inline fun ShortArray.copyOf(): ShortArray(source)

actual inline fun IntArray.copyOf(): IntArray(source)

actual inline fun LongArray.copyOf(): LongArray(source)

actual inline fun FloatArray.copyOf(): FloatArray(source)

actual inline fun DoubleArray.copyOf(): DoubleArray(source)

actual inline fun BooleanArray.copyOf(): BooleanArray(source)

actual inline fun CharArray.copyOf(): CharArray(source)

Returns new array which is a copy of the original array.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun ByteArray.copyOf(newSize: Int): ByteArray(source)

actual inline fun ShortArray.copyOf(newSize: Int): ShortArray(source)

actual inline fun IntArray.copyOf(newSize: Int): IntArray(source)

actual inline fun LongArray.copyOf(newSize: Int): LongArray(source)

actual inline fun FloatArray.copyOf(newSize: Int): FloatArray(source)

actual inline fun DoubleArray.copyOf(newSize: Int): DoubleArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with zero values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun BooleanArray.copyOf(newSize: Int): BooleanArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with false values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with false values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun CharArray.copyOf(newSize: Int): CharArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null char (\u0000) values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null char (\u0000) values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun <T> Array<T>.copyOf(newSize: Int): Array<T?>(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null values.

Since Kotlin

1.0

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun <T> Array<T>.copyOf(): Array<T>(source)

actual fun ByteArray.copyOf(): ByteArray(source)

actual fun ShortArray.copyOf(): ShortArray(source)

actual fun IntArray.copyOf(): IntArray(source)

actual fun LongArray.copyOf(): LongArray(source)

actual fun FloatArray.copyOf(): FloatArray(source)

actual fun DoubleArray.copyOf(): DoubleArray(source)

actual fun BooleanArray.copyOf(): BooleanArray(source)

actual fun CharArray.copyOf(): CharArray(source)

Returns new array which is a copy of the original array.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopy = array.copyOf()
println(arrayCopy.contentToString()) // [apples, oranges, limes] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun ByteArray.copyOf(newSize: Int): ByteArray(source)

actual fun ShortArray.copyOf(newSize: Int): ShortArray(source)

actual fun IntArray.copyOf(newSize: Int): IntArray(source)

actual fun LongArray.copyOf(newSize: Int): LongArray(source)

actual fun FloatArray.copyOf(newSize: Int): FloatArray(source)

actual fun DoubleArray.copyOf(newSize: Int): DoubleArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with zero values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with zero values.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun BooleanArray.copyOf(newSize: Int): BooleanArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with false values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with false values.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun CharArray.copyOf(newSize: Int): CharArray(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null char (\u0000) values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null char (\u0000) values.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = intArrayOf(1, 2, 3)
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [1, 2, 3, 0, 0]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [1, 2] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun <T> Array<T>.copyOf(newSize: Int): Array<T?>(source)

Returns new array which is a copy of the original array, resized to the given newSize. The copy is either truncated or padded at the end with null values if necessary.

If newSize is less than the size of the original array, the copy array is truncated to the newSize.
If newSize is greater than the size of the original array, the extra elements in the copy array are filled with null values.

Since Kotlin

1.3

Samples

import kotlin.test.*

fun main() { 
   //sampleStart 
   val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
   //sampleEnd
}
xxxxxxxxxx
 
val array = arrayOf("apples", "oranges", "limes")
val arrayCopyPadded = array.copyOf(5)
println(arrayCopyPadded.contentToString()) // [apples, oranges, limes, null, null]
val arrayCopyTruncated = array.copyOf(2)
println(arrayCopyTruncated.contentToString()) // [apples, oranges] 
Open in Playground →
Target: JVMRunning on v.2.1.20

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