Switch statement in Swift

Question

I\'m learning syntax of Swift and wonder, why the following code isn\'t working as I expect it to:

for i in 1...100{

    switch (i){
    case 1:
        Int         


        

Answer 1

Switch statements in Swift support value bindings.
This allows you to assign a value that matches a certain condition (evaluated via the where clause) to a temporary variable (x & y here):

for i in 1...100 {
    switch (i){
    case let x where x%3 == 0:
        println("Fizz")
    case let y where y%5 == 0:
        println("Buzz")
    default:
        println("\(i)")
    }
}

You could also use the assigned temp value in the case body.

Update:
Matt Gibson points out in the comments, that you can omit the assignment to a temp var if you are not going to use it in the case body.
So a more concise version of the above code would be:

for i in 1...100 {
    switch (i){
    case _ where i%3 == 0:
        println("Fizz")
    case _ where i%5 == 0:
        println("Buzz")
    default:
        println("\(i)")
    }
}

Side note: Your 2 code samples are slightly different (the first one uses the range 0-100 as input, while the second one operates on 1-100). My sample is based on your first code snippet.