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 Collections and Control Flow Control Flow With Conditional Statements FizzBuzz Challenge

I need help!

I don't know what to do! Here is the question: Enter your FizzBuzz solution here! Before you hit submit, make the following changes:

Step 1: Enter your code in between the comments shown below. The code is going inside a "function" that will help verify your solution.

Step 2: Change your variable/constant name that you are checking in each step to n. For example if (n % 3 == 0). Note: You don't need to create n, it is already provided.

Step 3: Change all your print statements to return statements. For example: print("FizzBuzz") becomes return "FizzBuzz".

While these are very specific directions, they allow me to verify your solution precisely over a large number of possible answers.

Note: Do not worry about the default case (where the number doesn't match Fizz, Buzz, or FizzBuzz). The code in the challenge editor already takes care of that by returning the number as a string using string interpolation.

The challenge also does not need you to loop over a range of values (using for or while). I'll take care of that. PLS HELP ME!

fizzBuzz.swift
func fizzBuzz(n: 15) -> String {
  // Enter your code between the two comment markers
  for i in 1...100 {
    if (n % 3 == 0) && (n % 5 == 0) {
        return("FizzBuzz")
    } else if (n % 3 == 0) {
        return("Fizz")
    } else if (n % 5 == 0) {
        return("Buzz")


    }


  } else {
  return "\(n)"
}

1 Answer

gmilan
gmilan
9,287 Points
func fizzBuzz(n: 15) -> String {    // wait to give a value to n. For now just use Int

    for i in 1...100 {   // because you want to use 15 you don't need this line
        if (n % 3 == 0) && (n % 5 == 0) {
            return("FizzBuzz")
        } else if (n % 3 == 0) {
            return("Fizz")
        } else if (n % 5 == 0) {
            return("Buzz")
        }


    } else {    // you also don't need this closing bracket from line 3
        return "\(n)"
}

}// and you want to add a final closeing bracket

// then you can use your function
//        fizzBuzz( n : 15)