LINQ Concat Method

In LINQ, the Concat method or operator is used to concatenate or append the two collection elements into a single collection, and it does not remove the duplicates from two sequences.

Here is the pictorial representation of the LINQ Concat Method.

In the above diagram, two lists of elements combined into a single collection.

Syntax of LINQ Concat Method

In the above syntax, we are concatenating two lists into a single list.

Example of LINQ Concat Method

Here is the example of the LINQ Concat method.

using System;
using System. Collections;
using System.Collections.Generic;
using System. Linq;
using System. Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Programme2
    {
        static void Main(string[] args)
        {
//here we create two array type of string variable array1 and array2 
            string[] array1 = { "a", "b", "c", "d" };

            string[] array2 = { "c", "d", "e", "f" };
/*here we will concat two array with the help of 'concat'
    method and store the output in 'result' variable*/
            var result = array1.Concat(array2);
//foreach loop will print the value of result
            foreach (var item in result)

            {

                Console.WriteLine(item);
            }

            Console.ReadLine();

        }

    }

    }

In the above example, we are concatenating two sequences "array1","array2" into a single sequence using the concat method.

Output: