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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Posted by Christian Mack
Christian Mack
874 Points

Structure Methods Task 3

Challenge Task 3 of 4

Create a variable named item and assign it an instance of Expense (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.

I don't understand where my code is wrong. I think that I've done everything correct up until the point where I am asked to assign the amount property a value of 100 but I can't figure out why.

struct.swift 
struct Expense {
    var description: String
    var amount: Double = 0.0

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

func calculateTaxes (percentage: Double) -> Double {
    return (self.amount * (percentage/100))
    var item = Expense (description: "Whatever works")
    let amount = 100
  }

}
Christian Mack
Christian Mack
874 Points

This is in swift

3 Answers

Meek D
Meek D
3,457 Points

You are the right Track however the item variable should be called outside of the struct . Hope that helps.

          struct Expense {
         var description: String
        var amount: Double = 0.0

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

              func calculateTaxes (percentage: Double) -> Double {
              return (self.amount * (percentage/100))
          }
         }

  var item = Expense (description: "Whatever works")
   item.amount = 100
Christian Mack
Christian Mack
874 Points
Christian Mack
Christian Mack
874 Points

Great! I was closer than I thought which is reassuring. Thanks a lot!

Mohammed Abushamala
Mohammed Abushamala
3,650 Points
Mohammed Abushamala
Mohammed Abushamala
3,650 Points

i have done the same thing as the answer given, but i still got this error

struct Expense { var description: String var amount: Double = 0.0

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

func calculateTaxes (percentage: Double) -> Double {
    return (self.amount * (percentage/100))
}

} var item = Expense(description: "I know struct") let amount = 100

swift_lint.swift:24:1: error: extraneous '}' at top level }