Question

How to add a value to the beginning of an array using Linq in C#

Answer 1

using System;
using System.Linq;

class Program
{
    static void Main() {
        int[] array1 = {1, 2, 3, 4};
        Console.WriteLine(string.Join(", ", array1));

        var array2 = array1.Prepend(0); 
        Console.WriteLine(string.Join(" ", array2));
        
        var array3 = array2.Prepend(-1); 
        Console.WriteLine(string.Join(", ", array3));
    }
}



/*
run:

1, 2, 3, 4
0 1 2 3 4
-1, 0, 1, 2, 3, 4

*/

 

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