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iOS

Posted by Brian Murray
Brian Murray
1,564 Points

Swift Functions Temperature Challenge

This code works fine in the playground yet the challenge says it cannot be compiled. Any idea why?

func temperatureInFahrenheit(temperature: Double) -> Double {
    let fahrenheitTemp = (temperature * 9) / 5 + 32

    return fahrenheitTemp
}

temperatureInFahrenheit(24.0)
Brian Murray
Brian Murray
1,564 Points

Solved my own problem:

func temperatureInFahrenheit(temperature: Double) -> Double {
    let fahrenheit = (temperature * 9) / 5 + 32

    return fahrenheit
}


let fahrenheitTemp = temperatureInFahrenheit(24)

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Glad you got it fixed, Brian.

One little thing - you can do that all in one line:

func temperatureInFahrenheit(temperature: Double) -> Double {
    return (temperature * 9) / 5 + 32   
}

I don't know if Xcode moans about creating constants/variables that are immediately returned. I know Android Studio does. Being more brief isn't always the best thing to do as having that interim variable can add clarity to some scenarios, especially with a well-chosen name. I guess it is a matter of style & preference rather than right & wrong.

Happy coding!

Steve.