Problem Statement

The task is to demonstrate how to remove the first and last characters from a string. The solution should demonstrate how to obtain the following results:

If the program uses UTF-8 or UTF-16, it must work on any valid Unicode code point, whether in the Basic Multilingual Plane or above it. The program must reference logical characters (code points), not 8-bit code units for UTF-8 or 16-bit code units for UTF-16. Programs for other encodings (such as 8-bit ASCII, or EUC-JP) are not required to handle all Unicode characters.

Let's start with the solution:

using System;
using System.Console;

module RemoveChars
{
    Main() : void
    {
        def str = "*A string*";
        def end = str.Remove(str.Length - 1);  // from pos to end
        def beg = str.Remove(0, 1);            // start pos, # of chars to remove
        def both = str.Trim(array['*']);       // with Trim() you need to know what char's you're removing
        
        WriteLine($"$str -> $beg -> $end -> $both");
    }
}