How can you create a String of a given length consisting of the same character - without using a loop?
Ie: create a String 10 characters in length where each character is an asterisk:
new String(new char[n]).replace("\0", s);
String initializer for that:
init(repeating repeatedValue: String, count: Int)
Creates a new string representing the given string repeated the specified number of times.
let string = String(repeating: "*", count: 10)