How to get a random element from an array using randomElement()
Swift version: 5.2
Swift’s arrays, sets, and dictionaries have a randomElement() method that returns one random item from the collection. Because your collection might be empty, the return type will be optional and you’ll get back nil if the collection had nothing in it.
For example:
let numbers = [100, 80, 85]
if let winner = numbers.randomElement() {
print("The winning number is \(winner).")
}
SPONSORED Are you tired of wasting time debugging your Swift app? Instabug’s SDK is here to help you minimize debugging time by providing you with complete device details, network logs, and reproduction steps with every bug report. All data is attached automatically, and it only takes a line of code to setup. Start your free trial now and get 3 months off exclusively for the Hacking with Swift Community.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- SwiftUI tips and tricks
- How to convert dates and times to a string using DateFormatter
- Building a menu using List
- How to create views in a loop using ForEach
- What is a monad?
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
