how to reverse aString in C# code example

Example 1: c# reverse string

public static string ReverseString(string s)
    {
        char[] arr = s.ToCharArray();
        Array.Reverse(arr);
        return new string(arr);
    }

Example 2: c# substring reverse

public static string ToReverseString(this string value)
{
  return string.Join("", value.Reverse());
}

public static string SubstringReverse(this string value, int indexFromEnd, int length)
{
  return value.ToReverseString().Substring(indexFromEnd, length).ToReverseString();
}