Iterate through alphabet in Swift

Question

in Obj-C it was possible to iterate through alphabet with:

for (char x=\'A\'; x<=\'Z\'; x++) {

In Swift this isn\'t possible. Any idea h

Answer 1

This solution works with Swift 3.0, and will either print out the values per OP request:

"ABCDEFGHIJKLMNOPQRSTUVWXYZ".characters.flatMap { print($0) }

Or provide you with an array of letters:

let alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ".characters.flatMap { $0.description }

Answer 2

In Swift, you can iterate chars on a string like this:

Swift 2

for char in "abcdefghijklmnopqrstuvwxyz".characters {
    println(char)
}

Swift 1.2

for char in "abcdefghijklmnopqrstuvwxyz" {
    println(char)
}

There might be a better way though.