Is there a way to initialize an array in Kotlin in this way with a range and mixed numbers.
intArrayOf(4, 10, 3, 20..24)
The contents of the array should be [4, 10, 3, 20, 21, 22, 23, 24]
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1Does this answer your question? How to fill varargs with range?Marvin– Marvin2020-01-16 22:26:44 +00:00Commented Jan 16, 2020 at 22:26
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20..24 have type intRange, so you should firstly convert type intRange to Int type. I think you making some kind of bicycle bro ).Leontsev Anton– Leontsev Anton2020-01-16 22:36:44 +00:00Commented Jan 16, 2020 at 22:36
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Marvin I found something that let me do it like this intArrayOf(4, 10, 3) + IntArray(5) { 20 + it } but then I would have to count the number of elements in the range and put it as the size every time.calculatedplays– calculatedplays2020-01-16 22:44:11 +00:00Commented Jan 16, 2020 at 22:44
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2 Answers
intArrayOf(4, 10, 3, *((20..24).toList().toIntArray()))
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Following the answer by @ardenit, you can make it a bit more appealing like so:
fun IntRange.arr() = this.toList().toIntArray()
fun main() {
intArrayOf(4, 10 , *(20..24).arr(), *(90 until 95).arr()) // [4, 10, 20, 21, 22, 23, 24, 90, 91, 92, 93, 94]
}