kotlin-stdlib / kotlin.collections / toDoubleArray toDoubleArray Common JVM JS Native 1.0 fun Array<out Double>.toDoubleArray(): DoubleArray(source) Returns an array of Double containing all of the elements of this generic array. Common JVM JS Native 1.0 fun Collection<Double>.toDoubleArray(): DoubleArray(source) Returns an array of Double containing all of the elements of this collection.