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 2.0 Functions Functions in Swift 2.0 Recap: Functions

I've tried everything not sure what's wrong...any help is appreciated this is only task 1 of 3 so whats next?

I watched the videos several times and researched other help questions...no luck yet

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

2 Answers

Steven Deutsch
Steven Deutsch
21,046 Points

Hey Matthew Delange,

This is because your function is returning something but you have no specified a return type. You need to add a return type of Double after the parenthesis storing your parameter names.

// Enter your code below

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

Good Luck!

Thank you Steven, I didn't want to go to bed frustrated like this! Matthew