Currency convertor Mexico, Canada and USA enum Currency case cad case mxn

let usToCad = 1.33 let usToMxn = 19.70 let Currency = Currency.cad func convert(_dollars: Double) -> Double switch Currency case .cad: print() usToCad * dollars default: usToMxn * dollars

return dollars

func convert(amountString: String)
guard let amount = Double(amountString) else { return nil }
let convertCurrency = convert(amount)

return String(convertCurrency)

convert(amountString: "57.0") Currency = .mxn convert(amountString: "57.0")