Question

How to get the difference between two arrays in C#

Answer 1

using System;
using System.Linq;

class Program
{
    static void Main() {
        string[] array1 = {"c#", "c", "c++", "java", "python", "vb"};
        string[] array2 = {"rust", "c", "c++", "go", "python", "nodejs"};

        // get whats in array2 but not in array1
        var result = array2.Except(array1);
        
        Console.WriteLine(string.Join(" ", result));
    }
}



 
/*
run:
 
rust go nodejs
 
*/

 

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Answer 2

using System;
using System.Linq;

class Program
{
    static void Main() {
        string[] array1 = {"c#", "c", "c++", "java", "python", "vb"};
        string[] array2 = {"rust", "c", "c++", "go", "python", "nodejs"};

        // get whats in array1 but not in array2
        var result = array1.Except(array2);
        
        Console.WriteLine(string.Join(" ", result));
    }
}



 
/*
run:
 
c# java vb
 
*/

 

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