Swift version: 5.10
All arrays have built-in sort()
and sorted()
methods that can be used to sort the array, but they are subtly different.
If the array is simple you can just call sort()
directly, like this, to sort an array in place:
var names = ["Jemima", "Peter", "David", "Kelly", "Isabella"]
names.sort()
If you have a custom struct or class and want to sort them arbitrarily, you should call sort()
using a trailing closure that sorts on a field you specify. Here's an example using an array of custom structs that sorts on a particular property:
struct User {
var firstName: String
}
var users = [
User(firstName: "Jemima"),
User(firstName: "Peter"),
User(firstName: "David"),
User(firstName: "Kelly"),
User(firstName: "Isabella")
]
users.sort {
$0.firstName < $1.firstName
}
If you want to return a sorted array rather than sort it in place, use sorted()
like this:
let sortedUsers = users.sorted {
$0.firstName < $1.firstName
}
SPONSORED Take the pain out of configuring and testing your paywalls. RevenueCat's all new Paywall Editor allow you to remotely configure your paywall view without any code changes or app updates.
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 7.0
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
Link copied to your pasteboard.