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

I was looking for a currency format like $100,000.00 I accomplished it customizing the implementation Leo Dabus like this

extension Formatter {
    static let withSeparator: NumberFormatter = {
        let formatter = NumberFormatter()
        formatter.numberStyle = .currency
        formatter.currencyGroupingSeparator = ","
        formatter.locale = Locale(identifier: "en_US") //for USA's currency patter
        return formatter
    }()
}

extension Numeric {
    var formattedWithSeparator: String {
        return Formatter.withSeparator.string(for: self) ?? ""
    }
}