Get one value or default value in case of no value with SingleOrDefault in CSharp

Description

The following code shows how to get one value or default value in case of no value with SingleOrDefault.

Example


using System;//from  w ww . ja  va 2  s.  co  m
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;

public class MainClass{
   public static void Main(){
       int[] numbers = {1, 2, 3, 4, 5, 6, 7, 8, 9};
       var query = numbers.SingleOrDefault(n => n > 9);
       Console.Write(query);
   }
}

The code above generates the following result.





















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