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iOS Swift 2.0 Functions Functions in Swift 2.0 Recap: Functions

Josh Minor
Josh Minor
2,947 Points
Posted by Josh Minor
Josh Minor
2,947 Points

Function to turn celsius into fahrenheit

Let's add some code to the body of the function. Get rid of the existing return statement that's in there and in this task we're going to write out code to take a Celcius temperature value passed in and convert it to Fahrenheit.

To convert from Celcius to Fahrenheit - multiply the value by 9, divide the resulting value by 5 and then add 32.

Once you have the Fahrenheit value, return it from the function.

2 Answers

Rich Donnellan
MOD
Rich Donnellan
Treehouse Moderator 27,671 Points
Rich Donnellan
Rich Donnellan
Treehouse Moderator 27,671 Points

You can also do this in one line:

func temperatureInFahrenheit(temperature: Double) -> Double {
  return ((temperature * 9) / 5) + 32
}
Marina Alenskaja
Marina Alenskaja
9,320 Points
Marina Alenskaja
Marina Alenskaja
9,320 Points

Hi

You didn't really ask a question, but I'll assume you are having trouble with the first part of the challenge.

You need to declare the function, and then define a constant that you will use for the calculation:

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