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

Allie Kench
Allie Kench
1,129 Points

Struct Methods

Help! I am not sure what I am missing.

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: "Charity")
item.amount = 100.0

1 Answer

  1. You have to declare the variable outside the struct meaning after the last } .
  2. You should call the calculateTaxes method and pass 7.5 as argument assignint it to a variable called taxes :

var taxes = item.calculateTaxes(7.5)

Hope it helps