How to reverse sort an array
Swift version: 5.4
Regular sorting on comparable data is as easy as calling the sort() method, but if you want a reverse sort – e.g. highest to lowest numbers, or Z-A alphabetically – there are two options.
The first is to run a regular sort, reverse that sort, then convert the result to an array. For example:
let numbers = [100, 5, 53, 98, 29]
let reversed1 = Array(numbers.sorted().reversed())The second option is to provide a custom closure to the sorted() method that sorts the opposite way to the default, like this:
let reversed2 = numbers.sorted { $0 > $1 }Both of those will result in the array 100, 98, 53, 29, 5.
SPONSORED From August 2nd to 8th you can join a FREE crash course for mid/senior iOS devs who want to achieve an expert level of technical and practical skills – it’s the fast track to being a complete senior developer!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- How to sort an array using sort()
- How to loop through an array in reverse
- How to sort the keys of your JSON using Codable
- How to reverse a string using reversed()
- How to convert a multidimensional array to a single-dimensional array
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
