C# Extension Methods

Extension methods

    public static class ExtensionMethods

    {

        public static Stopwatch Measure(this Func<int> f)

        {

            var sw = new Stopwatch();

            sw.Start();

            f();

            sw.Stop();

            return sw;

        }

        public static void Save(this ISerializable serializable)

        {

            //

        }

        public static void DeepCopy<T>(this T o) where T : ISerializable, new()

        { 

            //

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Func<int> calculate = delegate

            {

                Thread.Sleep(1000);

                return 42;

            };

            var sw = calculate.Measure();

            Console.WriteLine($"Took {sw.ElapsedMilliseconds}ms");

        }

    }