Swift turn a country code into a emoji flag via unicode

Question

I\'m looking for a quick way to turn something like:

let germany = \"DE\" 

into

let flag = \"\\u{1f1e9}\\u{1f1ea}\"
         


        

Answer 1

Two optimizations of matt's answer.

• No need to pass through the nested String in Swift 4
• To avoid pass lower case string, I added uppercased()

Here is the code.

func flag(from country:String) -> String {
    let base : UInt32 = 127397
    var s = ""
    for v in country.uppercased().unicodeScalars {
        s.unicodeScalars.append(UnicodeScalar(base + v.value)!)
    }
    return s
}