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toIntArray

fun Array<out Int>.toIntArray(): IntArray

Returns an array of Int containing all of the elements of this generic array.

fun Collection<Int>.toIntArray(): IntArray

Returns an array of Int containing all of the elements of this collection.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/to-int-array.html