Any vs Count | C# Online Compiler

Any vs Count by Corey Fournier

using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
					
public class Program
{
	public static void Main()
	{
		   //Creating List of customers
            List<Customer> customers = new List<Customer>();
            for (int i = 0; i <= 100; i++) {
                Customer customer = new Customer {
                    CustomerId = i,
                    CustomerName = string.Format("Customer{0}", i)
                };
                customers.Add(customer);
            }
 
            //Measuring time with count
            Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            if (customers.Count > 0) {
                //Console.WriteLine("Customer list is not empty with count");
            }
            stopWatch.Stop();
            Console.WriteLine("Time consumed with count: {0}", stopWatch.Elapsed);
 
            //Measuring time with any
            stopWatch.Restart();
            if (customers.Any()) {
                //Console.WriteLine("Customer list is not empty with any");
            }
            stopWatch.Stop();
            Console.WriteLine("Time consumed with Any: {0}", stopWatch.Elapsed);
	}
	
	public class Customer
    {
        public int CustomerId { get; set; }
        public string CustomerName { get; set; }
    }
}

 
using System;
using System.Diagnostics;
using System.Collections.Generic;
using System.Linq;
                    
public class Program
{
    public static void Main()
    {
           //Creating List of customers
            List<Customer> customers = new List<Customer>();
            for (int i = 0; i <= 100; i++) {
                Customer customer = new Customer {
                    CustomerId = i,
                    CustomerName = string.Format("Customer{0}", i)
                };
                customers.Add(customer);
            }
 
            //Measuring time with count
            Stopwatch stopWatch = new Stopwatch();
            stopWatch.Start();
            if (customers.Count > 0) {
                //Console.WriteLine("Customer list is not empty with count");
            }
            stopWatch.Stop();
            Console.WriteLine("Time consumed with count: {0}", stopWatch.Elapsed);
 
            //Measuring time with any
            stopWatch.Restart();
            if (customers.Any()) {
                //Console.WriteLine("Customer list is not empty with any");
            }
            stopWatch.Stop();
            Console.WriteLine("Time consumed with Any: {0}", stopWatch.Elapsed);
    }
    
    public class Customer
    {
        public int CustomerId { get; set; }
        public string CustomerName { get; set; }
    }
}

The linked list values:
the fox jumps over the dog

sentence.Contains("jumps") = True
Test 1: Add 'today' to beginning of the list:
today the fox jumps over the dog

Test 2: Move first node to be last node:
the fox jumps over the dog today

Test 3: Change the last node to 'yesterday':
the fox jumps over the dog yesterday

Test 4: Move last node to be first node:
yesterday the fox jumps over the dog

Test 5: Indicate last occurence of 'the':
the fox jumps over (the) dog

Test 6: Add 'lazy' and 'old' after 'the':
the fox jumps over (the) lazy old dog

Test 7: Indicate the 'fox' node:
the (fox) jumps over the lazy old dog

Test 8: Add 'quick' and 'brown' before 'fox':
the quick brown (fox) jumps over the lazy old dog

Test 9: Indicate the 'dog' node:
the quick brown fox jumps over the lazy old (dog)

Test 10: Throw exception by adding node (fox) already in the list:
Exception message: The LinkedList node already belongs to a LinkedList.

Test 11: Move a referenced node (fox) before the current node (dog):
the quick brown jumps over the lazy old fox (dog)

Test 12: Remove current node (dog) and attempt to indicate it:
Node 'dog' is not in the list.

Test 13: Add node removed in test 11 after a referenced node (brown):
the quick brown (dog) jumps over the lazy old fox

Test 14: Remove node that has the value 'old':
the quick brown dog jumps over the lazy fox

Test 15: Remove last node, cast to ICollection, and add 'rhinoceros':
the quick brown dog jumps over the lazy rhinoceros

Test 16: Copy the list to an array:
the
quick
brown
dog
jumps
over
the
lazy
rhinoceros

Test 17: Clear linked list. Contains 'jumps' = False

Cached Result
Last Run:	6:13:44 pm
Compile:	0.12s
Execute:	0.018s
Memory:	72kb
CPU:	0.016s

View IL Code