The iOS internationalization basics I keep forgetting

class CustomDateFormatter { private let dateFormatter: DateFormatter = { let dateFormatter = DateFormatter() dateFormatter.dateStyle = .medium dateFormatter.timeStyle = .short return dateFormatter }() private let locale: Locale private let timeZone: TimeZone init(locale: Locale = .current, timeZone: TimeZone = .current) { self.locale = locale self.timeZone = timeZone } func string(from date: Date) -> String { dateFormatter.locale = locale dateFormatter.timeZone = timeZone return dateFormatter.string(from: date) } } class CurrencyFormatter { private let locale: Locale init(locale: Locale = .current) { self.locale = locale } func string(from decimal: Decimal, overriddenCurrencySymbol: String?