NEW! Master Swift design patterns with my latest book! >>

How to reverse sort an array

Paul Hudson       @twostraws

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.

Available from iOS 8.0

Did this solution work for you? Please pass it on!

Other people are reading…

About the Swift Knowledge Base

This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.

Take Swift further!

Your Swift skills let you make apps for macOS, watchOS, tvOS, and more, and for one low price you can learn it all with my Swift Platform Pack!

MASTER SWIFT NOW
Buy Practical iOS 12 Buy Pro Swift Buy Swift Design Patterns Buy Practical iOS 11 Buy Swift Coding Challenges Buy Server-Side Swift (Vapor Edition) Buy Server-Side Swift (Kitura Edition) Buy Hacking with macOS Buy Advanced iOS Volume One Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with Swift Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Beyond Code

Was this page useful? Let me know!

Click here to visit the Hacking with Swift store >>