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 Functions in Swift Functions in Swift Recap: Functions

I need help on the return part of this question

I am not sure of what the question is asking me to do on the return part. But anyways here is the task I am stuck on. Declare a function named temperatureInFahrenheit. The function should take a single input named temperature of type Double and has a return type of Double.

For now, to make the function pass, simply return the value of the temperature parameter from the function. In the next task, we'll add more code to the body.

functions.swift
func temperatureInFahrenheit(temperature: Double) {
    return temperature: Double
}

1 Answer

You need to learn how to return values.

This should work:

func temperatureInFahrenheit(temperature: Double) -> Double { return temperature }