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Categories / C# / LINQ

 

Distinct Operator

using System; using System.Linq; using System.Collections; using System.Collections.Generic; public class MainClass {     public static void Main() {         string[] presidents = {"Grant", "Harding", "Harrison", "Hayes", "Hoover", "Jackson"};         Console.WriteLine("presidents count:  " + presidents.Count());         IEnumerable<string> presidentsWithDupes = presidents.Concat(presidents);         Console.WriteLine("presidentsWithDupes count:  " + presidentsWithDupes.Count());         IEnumerable<string> presidentsDistinct = presidentsWithDupes.Distinct();         Console.WriteLine("presidentsDistinct count:  " + presidentsDistinct.Count());     } }