Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Swift Enums and Structs Structs and their Methods Struct Methods

Posted by Rafael Marques
Rafael Marques
Courses Plus Student 1,217 Points

preview don't provide any error to help understand what is wrong with my code.

I tested my code with xcode in playground and its fine none error. But when tried here none information whats wrong. I suppose that are simple answer to my question.

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

    init (description: String) {
        self.description = description
    }
    func calculateTaxes(percentage: Double) {
    }
}
agreatdaytocode
agreatdaytocode
24,757 Points

Rafael,

It worked for me. Try it again.

1 Answer

David Fry
David Fry
13,267 Points
David Fry
David Fry
13,267 Points

Rafael, here is some code that will get you from task 1-4:

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

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

    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double
    // Task 1
   func calculateTaxes(percentage:Double) -> Double
    {
        // Task 2
        return (self.amount * (percentage/100))
    }

}
// Task 3
var item = Expense(description:"Treehouse Learning")
item.amount = 100
// Task 4
var taxes = item.calculateTaxes(7.5)