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

My code works in the Xcode application but not on this. I do not know what I am doing wrong.

My code:

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

    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

}

1 Answer

Michael Reining
Michael Reining
10,101 Points

Hi Sejal,

Perhaps the extra brackets are throwing it off?

Here is what was accepted in the code challenge.

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
    func calculateTaxes (percentage: Double) -> Double {
        return self.amount * (percentage / 100)  // I returned the value without the extra brackets
    }

}

I hope that helps,

Mike

PS: Thanks to the awesome resources on Team Treehouse, I launched my first app.

Now you can practice writing Swift code directly on your iPhone :-)

Code! Learn how to program with Swift