Adding Thousand Separator to Int in Swift

Question

I am fairly new to Swift and having a great deal of trouble finding a way to add a space as a thousand separator.

What I am hoping to achieve is taking the result

Answer 1

Leo Dabus's answer translated to Swift 3:

Into any .swift file, out of a class:

struct Number {
    static let withSeparator: NumberFormatter = {
        let formatter = NumberFormatter()
        formatter.groupingSeparator = " " // or possibly "." / ","
        formatter.numberStyle = .decimal
        return formatter
    }()
}
extension Integer {
    var stringWithSepator: String {
        return Number.withSeparator.string(from: NSNumber(value: hashValue)) ?? ""
    }
}

Usage:

let myInteger = 2358000
let myString = myInteger.stringWithSeparator  // "2 358 000"