Swift: generate an array of (Swift) characters

It's a little cumbersome to get the initial character code (i.e. 'a' in c / Obj-C) in Swift, but you can do it like this:

let aScalars = "a".unicodeScalars
let aCode = aScalars[aScalars.startIndex].value

let letters: [Character] = (0..<26).map {
    i in Character(UnicodeScalar(aCode + i))
}

Thanks for useful answers.

I'm using one-liner version.

let xs = (97...122).map({Character(UnicodeScalar($0))})

or

let xs = (0..<26).map({Character(UnicodeScalar("a".unicodeScalars.first!.value + $0))})