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

Geert Van Campenhout
Geert Van Campenhout
7,308 Points

Challenge Task 2 of 4

Not sure what I'm doing wrong here.. nor how to move on

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) {
    return (self.amount*(percentage/100))
}

}

struct.swift
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) {
        return (self.amount*(percentage/100))
    }

}

2 Answers

Hi there,

Your method also returns something so your method signature needs to include that returned value type:

func calculateTaxes (percentage: Double) -> Double{

I hope that helps.

Steve.

Geert Van Campenhout
Geert Van Campenhout
7,308 Points

Thanks once again :-).. it's easy to overlook those things as a starter