https://grokonez.com/kotlin/kotlin-array-sort-sortby-sortwith

Kotlin Array sort(), sortBy(), sortWith()

In the tutorial, JavaSampleApproach will guide how to sort Kotlin Array by sort(), sortBy() with selector function, and sortWith() with a comparator.

I. Kotlin Array sort()

1. sort()

Method signature:

fun <T : Comparable<T>> Array<out T>.sort()

-> Sorts the array in-place according to the natural order of its elements.

Practice:

val simpleArray = arrayOf(1, 4, 2, 20, 3, 40, 23, 12, 51)

// fun <T : Comparable<T>> Array<out T>.sort()
simpleArray.sort()
simpleArray.forEach { print("${it} ") }
/*
	-> 1 2 3 4 12 20 23 40 51
*/

For descending sorting, we can use sortDescending(). Method signature:

public fun <T : Comparable<T>> Array<out T>.sortDescending(): Unit

Practice:

More at:

https://grokonez.com/kotlin/kotlin-array-sort-sortby-sortwith

Kotlin Array sort(), sortBy(), sortWith()

#kotlin #array #sort #sortby #sortwith