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 Collections and Control Flow Control Flow With Conditional Statements FizzBuzz

Posted by Alex Whitlock
.a{fill-rule:evenodd;}techdegree
Alex Whitlock
iOS Development Techdegree Student 497 Points

FizzBuzz code working perfectly in xCode, won't compile in treehouse.

I've got what seems to be a valid solution to the FizzBuzz problem,, substituting Fizz for every multiple of 3, Buzz for every multiple of 5, and 15 for every multiple of both. It works great in xCode, but when I try to put it into xCode and run it between the lines of code written in , I get a compiler error. Any idea why that might be?

fizzBuzz.swift 
func fizzBuzz(n: Int) -> String {
//Start code here
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)
    }
}
//end code
return "\(n)"
}

2 Answers

hum4n01d
hum4n01d
25,493 Points

You need to return a string. Try converting the int to a string like this:

Try this:

func fizzBuzz(n: Int) -> String {
//Start code here
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 String(n)
    }
}
//end code
return "\(n)"
}
Alex Whitlock
.a{fill-rule:evenodd;}techdegree
Alex Whitlock
iOS Development Techdegree Student 497 Points

That did the trick, thanks!

Mackenzy Douyon
seal-mask
.a{fill-rule:evenodd;}techdegree
Mackenzy Douyon
iOS Development Techdegree Student 2,913 Points
Mackenzy Douyon
.a{fill-rule:evenodd;}techdegree
Mackenzy Douyon
iOS Development Techdegree Student 2,913 Points

//Your code looks great, except the those lines I commented. //copy and paste to compile func fizzBuzz(n: Int) -> String { //Start code here //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) //} //} //end code return "(n)" //add one closing bracket }}

fizzBuzz(n: 15)