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 Object-Oriented Swift Properties Getter and Setter Methods

Posted by Jordan Seegmiller
Jordan Seegmiller
2,615 Points

says it's not assigning the proper value to celsius

set { celsius = (fahrenheit - 32) / 1.8 }

Temperature.swift 
class Temperature {
    var celsius: Float = 0.0
    var fahrenheit: Float {
        get {
            return (celsius * 1.8) + 32.0
            }
        set {
            celsius = (fahrenheit - 32) / 1.8
        }
    }    
}

1 Answer

Dan Johnson
Dan Johnson
40,532 Points
Dan Johnson
Dan Johnson
40,532 Points

In your setter, the default argument name is newValue. So you can either use that:

set {
    celsius = (newValue - 32) / 1.8
}

Or specify the argument name:

set(fahrenheit) {
    celsius = (fahrenheit - 32) / 1.8
}