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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Carlos Pedraza
Carlos Pedraza
Courses Plus Student 2,413 Points

What is wrong with this code? It's runs in Xcode.

Please help.

struct Expense {
    var description: String
    var amount: Double

    init (description: String, amount: Double) {
        self.description = description
        self.amount = amount

    func calculateTaxes (percentage: Double) -> Double{

        return (self.amount * (percentage/100))


    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double


var item = Expense(description: "La mama de los pollitos", amount: 100)

What error is the Editor giving you?

1 Answer

William Li
William Li
Courses Plus Student 26,868 Points

You should do it in 2 lines.

Also, very important, you are not supposed to make change to the original init method, it takes only 1 argument.

    init (description: String) {
        self.description = description

(remember to use the initializer with the description parameter. Enter any description you like)

On the next line assign the amount property a value of 100.

var item = Expense(description: "La mama de los pollitos")
item.amount = 100