Swift version: 5.10
If you have an array of elements and you want to split them into chunks of a size you specify, here’s a useful extension you can add to your code:
extension Array {
func chunked(into size: Int) -> [[Element]] {
return stride(from: 0, to: count, by: size).map {
Array(self[$0 ..< Swift.min($0 + size, count)])
}
}
}
That converts an array into an array of arrays, using whatever size you specify. For example, if you have the numbers 1 to 100 in an array and you want to split it so that there are many arrays containing five numbers each, you’d write this:
let numbers = Array(1...100)
let result = numbers.chunked(into: 5)
SPONSORED Ready to dive into the world of Swift? try! Swift Tokyo is the premier iOS developer conference will be happened in April 9th-11th, where you can learn from industry experts, connect with fellow developers, and explore the latest in Swift and iOS development. Don’t miss out on this opportunity to level up your skills and be part of the Swift community!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
Link copied to your pasteboard.