sortByDescending

inline fun <T, R : Comparable<R>> Array<out T>.sortByDescending(
    crossinline selector: (T) -> R?)
(source)

Sorts elements in the array in-place descending according to natural sort order of the value returned by specified selector function.

inline fun <T, R : Comparable<R>> MutableList<T>.sortByDescending(
    crossinline selector: (T) -> R?)
(source)

Sorts elements in the list in-place descending according to natural sort order of the value returned by specified selector function.