Question

How to create an intersection of a HashSet and a List in C#

Answer 1

using System;
using System.Collections.Generic;
  
public class Program
{
    public static void Main(string[] args)
    {
        HashSet<string> hset = new HashSet<string> {"c#", "vb.net", "c", "python", "java", "c++", "go", "php"};
        
        List<string> list = new List<string>{"c#", "c", "c++", "javascript", "node.js"};

        hset.IntersectWith(list);
  
        Console.WriteLine(string.Join(" ", hset));   
    }
}
  
  
  
  
/*
run:
    
c# c c++
    
*/

 

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