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iOS Swift Basics (retired) Control Flow Exercise: FizzBuzz Generator

Damian Adams
Damian Adams
21,351 Points
Posted by Damian Adams
Damian Adams
21,351 Points

FizzBuzz Generator using switch statements solution?

Hi everybody!

In the spirit of curiosity I went about finding different answers to the FizzBuzz generator problem; however, I have yet to think of a way to build one using switch statements. I tried a few variations of this, but my general idea for how the code would look would be something like this: 

var numbers = 1...100

for n in numbers {

    switch n {
        case (n % 3 == 0) %% (n % 5 == 0):
            println("FizzBuzz")

        case (n % 3 == 0): 
            println("Fizz")

        case (n % 5 == 0):
            println("Buzz")

        default: 
            println(n)
        }
    }

If someone could figure out what the problem in the code is or the right way to do this using switch statements (I suspect improper case statement syntax) I'd very much be in your debt.

Many thanks!

3 Answers

mohitbhatia
PLUS
mohitbhatia
Courses Plus Student 5,153 Points
mohitbhatia
mohitbhatia
Courses Plus Student 5,153 Points 
            <p>
var num = 1...20

for number in num {
    switch number{
    case number where number % 3 == 0 && number % 5 == 0 :
        println("FIzzBuzz")
    case number where number % 3 == 0:
        println("Fizz")
    case number where number % 5 == 0:
        println("Buzz")
    default:
        println(number)
    }
}</p>
            ```
patrtoikua
patrtoikua
1,871 Points

I tried this but on number 15 it's not showing "FizzBuzz" instead it's "Fizz"

patrtoikua
patrtoikua
1,871 Points

Nevermind. Haha. I found the problem. Thanks.

Michael Mahler
Michael Mahler
8,560 Points
Michael Mahler
Michael Mahler
8,560 Points

It does look like you're using improper switch statement syntax. See the docs here.

Emmanuel Ouzan
Emmanuel Ouzan
4,107 Points
Emmanuel Ouzan
Emmanuel Ouzan
4,107 Points

Hi Damian !

I think that the use of "Switch" for this exercise is a great!

Your Idea is good, but your syntax dose not follow the syntax rules of "Switch" !

I can tell you how to correct your syntax right away, but I will prefer that you will go back to Amit's video talking about "Switch" and find out yourself what is your syntax problem ! :)

In the future, When you will have the same issue with other swift functions and commands, you should always go to the docs of swift and try to understand what is the right syntax for the command that you have used and why your syntax doesn't work ! :)

(IOS Developer library : https://developer.apple.com/library/ios/navigation/ )

Good luck !

Emmanuel.