[jmnicolas]

I never looked at Swift, but for example how do you wright 10 times "hello world" on the command line if you don't have for loops ?

You could do it with a while loop (if it exists in Swift) but I'm at a loss as to why you would remove a for loop from a programming language.

[NobodyNada]

Iterator-style loops are much clearer and more concise in almost all cases. In this case you can iterate over a range:

    for i in 0..<10 {
        print(i)
    }