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 Swift Collections and Control Flow Control Flow With Conditional Statements FizzBuzz Challenge

I am unsure what is wrong with my code

It says to check my FizzBuzz code but I can't see anything wrong with it, can you help?

fizzBuzz.swift
func fizzBuzz(n: Int) -> String {
    // Enter your code between the two comment markers
    if n % 3 == 0 {
        return "Fizz"
    } else if n % 5 == 0 {
        return "Buzz"
    } else if n % 3 == 0 && n % 5 == 0 {
        return "FizzBuzz"
    } else {
    }
    // End code
    return "\(n)"
}

1 Answer

Hi Isaac,

Test for the double-test first else you'll filter out all your FizzBuzz candidates at your first test. Other than that, lose the last, empty, else statement and your code is fine.

Like this:

  // Enter your code between the two comment markers
    if n % 3 == 0 && n % 5 == 0 { // do this first!! 
        return "FizzBuzz"
    } else if n % 5 == 0 {
        return "Buzz"
    } else if n % 3 == 0 {
        return "Fizz"
    }
  // End code

Steve.