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iOS Swift Enums and Structs Structs and their Methods Struct Methods

Posted by David Rodriguez Saavedra
David Rodriguez Saavedra
3,574 Points

what value should i give to var taxes?

please some one help!!

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/100.00)

    }


}

var item = Expense(description: "hello")
item.amount = 7.5
item.calculateTaxes(percentage: Double)
var taxes = calculateTaxes(percentage)

1 Answer

Chase Marchione
Chase Marchione
155,055 Points
Chase Marchione
Chase Marchione
155,055 Points

Hi David,

Challenge 3 asks us to set item.amount to 100, so we'll do that.

As for Challenge 4, we'll pass in 7.5 as an argument to the calculateTaxes method (this 7.5 will be the tax percentage, as you've defined in the calculateTaxes method's header.) We need to specify our variable of item when calling this method (which is an instance of Expense), because item's amount property holds the value that we want to calculate taxes on.

var item = Expense(description: "hello")
item.amount = 100
var taxes = item.calculateTaxes(7.5)

Hope this helps!