Question

How to use Linq Array.Where() to filter elements from a array in C#

Answer 1

using System;
using System.Linq;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] array = { "c#", "c", null, "c++", "", null, "java", null };

            var arrayWhere = array.Where(item => item != null);

            foreach (string s in arrayWhere)
                Console.WriteLine(s);
        }
    }
}


/*
run:

c#
c
c++

java

*/

 

70+ SQL courses for beginners and professionals

Answer 2

using System;
using System.Linq;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 1, 2, 13, 50, 90, 8 };

            var arrWhere = from number in arr
                           where number >= 41
                           select number;

            foreach (int n in arrWhere)
                Console.WriteLine(n);
        }
    }
}


/*
run:

50
90

*/

 

70+ SQL courses for beginners and professionals