Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

iOS Functions in Swift Adding Power to Functions Function Parameters

how do you ass external names?

not entirely sure what I've missed here. Thank you in advance :)

// Enter your code below

func getRemainder(a: Int, b: Int) -> Int {
 let remainder = a % b
    return remainder

let value = a
let divisor = b

1 Answer

Matthew Long
Matthew Long
28,383 Points

External names are also parameters. They are a way you can refer to a parameter outside the function differently than inside the function.

func getRemainder(value a: Int, divisor b: Int) -> Int {
  return a%b

let result = getRemainder(value: 10, divisor: 3)

Thank you so much! total brain fart!