sortWith
fun <T> Array<out T>.sortWith(comparator: Comparator<in T>)(Common source) (JS source) (Native source)
Sorts the array in-place according to the order specified by the given comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
fun <T> Array<out T>.sortWith(
comparator: Comparator<in T>,
fromIndex: Int = 0,
toIndex: Int = size)(Common source) (JS source) (Native source)
Sorts a range in the array in-place with the given comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
Parameters
fromIndex - the start of the range (inclusive) to sort, 0 by default.
toIndex - the end of the range (exclusive) to sort, size of this array by default.
Exceptions
IndexOutOfBoundsException - if fromIndex is less than zero or toIndex is greater than the size of this array.
IllegalArgumentException - if fromIndex is greater than toIndex.
fun <T> MutableList<T>.sortWith(comparator: Comparator<in T>)(Common source) (JS source) (Native source)
Sorts elements in the list in-place according to the order specified with comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
// non-comparable class
class Person(val firstName: String, val lastName: String) {
override fun toString(): String = "$firstName $lastName"
}
val people = mutableListOf(
Person("Ragnar", "Lodbrok"),
Person("Bjorn", "Ironside"),
Person("Sweyn", "Forkbeard")
)
people.sortWith(compareByDescending { it.firstName })
// after sorting
println(people.joinToString()) // Sweyn Forkbeard, Ragnar Lodbrok, Bjorn Ironside
//sampleEnd
}Sorts the array in-place according to the order specified by the given comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
fun <T> Array<out T>.sortWith(
comparator: Comparator<in T>,
fromIndex: Int = 0,
toIndex: Int = size)(source)
Sorts a range in the array in-place with the given comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
Parameters
fromIndex - the start of the range (inclusive) to sort, 0 by default.
toIndex - the end of the range (exclusive) to sort, size of this array by default.
Exceptions
IndexOutOfBoundsException - if fromIndex is less than zero or toIndex is greater than the size of this array.
IllegalArgumentException - if fromIndex is greater than toIndex.
Sorts elements in the list in-place according to the order specified with comparator.
The sort is stable. It means that equal elements preserve their order relative to each other after sorting.
import kotlin.test.*
fun main(args: Array<String>) {
//sampleStart
// non-comparable class
class Person(val firstName: String, val lastName: String) {
override fun toString(): String = "$firstName $lastName"
}
val people = mutableListOf(
Person("Ragnar", "Lodbrok"),
Person("Bjorn", "Ironside"),
Person("Sweyn", "Forkbeard")
)
people.sortWith(compareByDescending { it.firstName })
// after sorting
println(people.joinToString()) // Sweyn Forkbeard, Ragnar Lodbrok, Bjorn Ironside
//sampleEnd
}