kotlin-stdlib / kotlin.collections / toIntArray toIntArray Common JVM JS Native 1.0 fun Array < out Int > . toIntArray ( ) : IntArray (source) Returns an array of Int containing all of the elements of this generic array. Common JVM JS Native 1.0 fun Collection < Int > . toIntArray ( ) : IntArray (source) Returns an array of Int containing all of the elements of this collection. Common JVM JS Native 1.3 @ExperimentalUnsignedTypes fun UIntArray . toIntArray ( ) : IntArray (source) Returns an array of type IntArray , which is a copy of this array where each element is a signed reinterpretation of the corresponding element of this array.