Currency TextField in SwiftUI

import SwiftUI struct ContentView : View { @ State private var value = 0 private let numberFormatter : NumberFormatter init () { numberFormatter = NumberFormatter () numberFormatter . struct ContentView : View { @ State private var isSubtitleHidden = false @ State private var value = 0 private var numberFormatter : NumberFormatter init ( numberFormatter : NumberFormatter = NumberFormatter ()) { self . Style { get set } var maximumFractionDigits : Int { get set } } extension NumberFormatter : NumberFormatterProtocol { } class PreviewNumberFormatter : NumberFormatterProtocol { let numberFormatter : NumberFormatter init ( locale : Locale ) { numberFormatter = NumberFormatter () numberFormatter .