private static void Main(string[] args)
{
var timekeeper = new Timekeeper(); // Timekeeper allows us to measure how long an action takes to run
var elapsed = timekeeper.Measure(() =>
{
// var numbers = new[] { 3, 5, 7, 9, 11, 13 };
// using GetLazyRandomNumber() now for a stream of numbers
foreach (var prime in GetLazyRandomNumber(100).Find(IsPrime).Take(2))
{
Console.WriteLine("Prime number found: {0}", prime);
}
});
Console.WriteLine("The elapsed time was {0}", elapsed);
Console.ReadLine();
// Partial example
var client = new WebClient();
Func <string, string> download = url => client.DownloadString(url);
var data = download.Partial("https://api.tlopo.com/system/status/").WithRetry();
Console.WriteLine("Using Partial function with retry returns the following string: \nn" + data);
Console.ReadLine();
// Curry example
// build a Func of string that returns a func of string
Func <string, Func <string> > downloadCurry = download.Curry();
var data2 = downloadCurry("https://api.tlopo.com/system/status/").WithRetry();
Console.WriteLine("Using Curry function with retry returns the following string: \n\n" + data2);
// Now let's use TPL Async and Task in functional programming.
elapsed = timekeeper.Measure(() => FindLargePrimes(900000, 1000000));
Console.WriteLine("Finding all prime numbers took: {0}", elapsed);
// now use Async()
elapsed = timekeeper.Measure(() => FindLargePrimesAsynch(900000, 1000000));
Console.WriteLine("Finding all prime numbers in parallel took: {0}", elapsed);
// now use Task
var task = new Task <IEnumerable <int> >(() => FindLargePrimes(3, 100));
var task2 = task.ContinueWith((prev) =>
{
foreach (var number in prev.Result)
{
Console.WriteLine("The number found was {0}", number);
}
});
task.Start();
Console.WriteLine("Doing some other work right now");
task2.Wait();
}