descendingComparator(comparing:then:)

A higher-order function that produces a descending comparator (as used by sorted(by:)) comparing two specific properties lexicographically.

CompareUtils.swift:36
func descendingComparator<T, P, R>(comparing property: @escaping (T) -> P, then inner: @escaping (T) -> R) -> (T, T) -> Bool where P : Comparable, R : Comparable