Get the initials from a name and limit it to 2 initials

Question

I have a the following name: John Fitzgerald Kennedy.

To get its initials, I created a method:

extension String {
    public var first: String {
        return String(self[startIndex])
    }
}

let initials = "John Fitzgerald Kennedy".componentsSeparatedByString(" ")
      .reduce("") { $0 + $1.first }

The output is : JFK

Is there an elegant way with my method (with reduce) to limit those initials to JK only, removing then the letter in the middle?

Answer 1

If you target iOS 9 and above:

let formatter = PersonNameComponentsFormatter()
if let components = formatter.personNameComponents(from: name) {
     formatter.style = .abbreviated
     return formatter.string(from: components)
}