CODEWITHSUNDEEP
swift
Amit Kalra
Amit Kalra

Reputation: 4113

Setter Method Won't Assign Property

My setter method won't set a right property. I'm trying to assign the Fahrenheit property to Celsius when you assign it.

    var fahrenheit: Float {

get {
    return (celsius * 1.8) + 32.0

    }

    set {

    fahrenheit = (fahrenheit - 32) / 1.8

    }
}

Why will not my setter method work?

Upvotes: 0

Views: 59

Answers (2)

David Skrundz
David Skrundz

Reputation: 13347

Since you're using set {, the variable name you should be using to access the value to be set is newValue.

fahrenheit = (fahrenheit - 32) / 1.8

should become

celsius = (newValue - 32) / 1.8

From the Swift documentation on Computed Properties, for the setter you can define the name of the new value by doing set(newFahrenheit) {, or you can use the 'Shorthand Setter Declaration' which is just set { as you're currently doing which defines the variable name to be newValue.

Upvotes: 3

David Berry
David Berry

Reputation: 41226

Because you're assigning to fahrenheit, not centigrade.

fahrenheit = ...

Should be:

celsius = ...

And presumably you have a celsius instance variable already.

Upvotes: 0

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