CSHARP

c# sort array string by length

public static string[] SortLength(string[] arr)
        {
            string[] sorted = arr
                .OrderBy(x => x.Length) //.OrderByDescending
                .ToArray();

            return sorted;
        }

Sort string Array in C#

static string SortString(string input)
{
    char[] characters = input.ToArray();
    Array.Sort(characters);
    return new string(characters);
}

Sort string Array in C#

String.Concat(str.OrderBy(c => c))