Question

How to convert array of integers to comma-separated string using Linq in C#

Answer 1

using System;
using System.Linq;
   
class Program
{
    static void Main() {
        int[] arr = {5, 9, 0, 7, 3, 2, 6};
           
        string s = arr.Select(n => n.ToString()).Aggregate((i, j) => i + "," + j);;
           
        Console.WriteLine(s);
    }
}
 
   
   
/*
run:
   
5,9,0,7,3,2,6
   
*/

 

70+ SQL courses for beginners and professionals

Answer 2

using System;
using System.Linq;
  
class Program
{
    static void Main() {
        int[] arr = {5, 9, 0, 7, 3, 2, 6};
          
        string s = String.Join(",", arr.Select(n=>n.ToString()).ToArray());
          
        Console.WriteLine(s);
    }
}

  
  
/*
run:
  
5,9,0,7,3,2,6
  
*/

 

70+ SQL courses for beginners and professionals