How to split an Int to its individual digits?

Question

I am trying to split an Int into its individual digits, e.g. 3489 to 3 4 8 9, and then I want to put the digits in an Int array.

I have already tried putting the num

Answer 1

extension Int {
    var digits : [Int] {
        var result = [Int]()
        var remaining = abs(self)
        while remaining > 0 {
            result.insert(remaining % 10, at: 0)
            remaining /= 10
        }
        return result
    }
}