.sort()

The .sort() function in Kotlin sorts the elements of an array in ascending order in-place, meaning it rearranges the original array. It does not return a new array but modifies the existing one, making the change directly to the array.

Syntax

arrayName.sort()

• arrayName: Refers to the variable that holds the array to be sorted.

Example

This example demonstrates the use of .sort() to sort the elements of an array in ascending order:

fun main() {
  val array = arrayOf(5, 2, 9, 1, 4)

  // Sort the array in ascending order
  array.sort()

  // Print the array contents
  println(array.contentToString())
}

The above code produces the following output:

[1, 2, 4, 5, 9]