CSHARP

c# for loop backwards

int[] myarray = new int[]{1,2,3,4};
for(int i = myarray.Length - 1; i >= 0; i--)
{
	Console.WriteLine(i);
}

c# array backwards

for (int i = 0; i < arr.Length / 2; i++)
{
   int tmp = arr[i];
   arr[i] = arr[arr.Length - i - 1];
   arr[arr.Length - i - 1] = tmp;
}

c# array backwards

using System;
 
public class Example
{
    public static void Main()
    {
        int[] array = { 2, 4, 6, 8 };
        Array.Reverse(array);
 
        Console.WriteLine(String.Join(',', array));
    }
}
 
/*
    Output: 8,6,4,2
*/

c# loop backwards

for (int i = myArray.Length; i --> 0; )
{
    //do something
}

c# array backwards

string[] arr = new string[5];
for (int a = arr.Length; --a >= 0;)
{
  // ...
}