Oh come on! Hello world! once again?

JavaScript

f=_=>"\u0048\u0065\u006c\u006c\u006f\u002c\u0020\u0077\u006f\u0072\u006c\u0064\u0021";

C++

std::string f() {
  return "\u0048\u0065\u006c\u006c\u006f\u002c\u0020\u0077\u006f\u0072\u006c\u0064\u0021";
}

C#

public class Kata {
  public static string F() =>
    "\u0048\u0065\u006c\u006c\u006f\u002c\u0020\u0077\u006f\u0072\u006c\u0064\u0021";
}

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Tags

1. javascript (Private)
2. c++ (Private)
3. c# (Private)
4. restricted (Private)
5. 7-kyu (Private)
6. codewars (Private)
7. answer (Private)