Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift Enums and Structs Structs and their Methods Struct Methods

How do i assign the result to a new variable named taxes?

My code looks like this:

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))
    }
    // add the calculateTaxes method here
    // it should accept only one parameter named 'percentage' of type Double

}

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

item.calculateTaxes(7.5) 

// How do i assign the result to a new variable named taxes???

Edited your post for proper code inclusion (3 backticks before and after code will make it easier to read). Wish I could help with the question!

2 Answers

Daniel,

My Swift skills are very iffy, but where you have:

item.calculateTaxes(7.5)

can you just do:

var taxes = item.calculateTaxes(7.5)

? Seems like it should do the trick.

Just tested this in a playground and it seems to be correct.

Hello Daniel, just a quick question. Which is better in iOS development? Objective C or Swift? Thanks for you answer, I'm just starting in iOS.