How to split an integer into an array of its digits
Swift version: 5.2
You can take any integer number and convert it to array of integer digits using this extension:
extension BinaryInteger {
var digits: [Int] {
return String(describing: self).compactMap { Int(String($0)) }
}
}That’s a protocol extension, so you should be able to call it using Int, UInt64, Int8, and so on.
SPONSORED Ever ask for help and your reviewer immediately notices issues you missed? Fernando Olivares is a 10-year veteran from Big Nerd Ranch and Lambda School who can help hone your app building skills, and he's just launched a new book that does just that – use the code "hacking" to save $5!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Available from iOS 8.0
Similar solutions…
- How to create live playgrounds in Xcode
- How do you create multi-dimensional arrays?
- How to split an array into chunks
- How to convert a multidimensional array to a single-dimensional array
- How to add drag and drop to your app
About the Swift Knowledge Base
This is part of the Swift Knowledge Base, a free, searchable collection of solutions for common iOS questions.
