.reverse()

In Kotlin, the .reverse() function reverses the order of the elements in-place in a specified array.

Syntax

arr.reverse()

• arr: A mutable array whose elements will be reversed in place.

Example

The following example demonstrates the usage of the .reverse() function:

fun main() {
  // Creating an array
  val arr = intArrayOf(3, 7, 11, 15, 19)

  // Reversing the order of the elements in the array
  arr.reverse()

  // Printing the modified array
  println(arr.contentToString())
}

The above code produces the following output:

[19, 15, 11, 7, 3]