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iOS Swift Enums and Structs Structs and their Methods Struct Methods

boris said
boris said
3,607 Points

Can somebody please help me I have been trying for a long time and can't get it to work.

Can somebody please tell me what I did wrong

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: 50.00)
    Expense.amount = 100.00

}

1 Answer

You need to put the use of the Expense struct outside of its definition:

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))

    }

}  // <- I moved this

var item = Expense(description: 50.00) /// description is a string. Try "Hotel"
Expense.amount = 100.00 // this isn't right, though. Use item.amount

And there's a couple of other points I added in code comments.

I hope that makes sense!

Steve.

The last two lines can look like:

var item = Expense(description: "Hotel")
item.amount = 100