How to convert Data to hex string in swift

Question

I want the hexadecimal representation of a Data value in Swift.

Eventually I\'d want to use it like this:

let data = Data(base64Encoded: \"aGVsbG8gd2         


        

Answer 1

This code extends the Data type with a computed property. It iterates through the bytes of data and concatenates the byte's hex representation to the result:

extension Data {
    var hexDescription: String {
        return reduce("") {$0 + String(format: "%02x", $1)}
    }
}