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

matt tripodi
matt tripodi
2,673 Points

help on challenge

Can someone please explain how to complete this part of the challenge I cannot get it to work

Add a Double as a return type to the calculateTaxes method and within the method return the following expression: (self.amount * (Percentage/100))

struct.swift
struct Expense {
    var description: String
    var amount: Double = 0.0
    var percentage: Double = 0.0 
    init (description: String, percentage: Double) {
        self.description = description
        self.percentage = percentage

    }
func calculateTaxes(percentage: Double) -> Double {
return Double ()   

}

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

}

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points

Hi, matt tripodi , actually the challenge description has already given you the answer for this problem.

within the method return the following expression: (self.amount * (percentage/100))

func calculateTaxes(percentage: Double) -> Double {
  return self.amount * (percentage/100)
}

Hope that helps.