static void AnyAndAllExampleDynamic()
{
var allAndAny = new AllAndAny(false);
Stopwatch timer = new Stopwatch();
timer.Start();
if (allAndAny.RealtimeDownloadedEnumerable.Any(x => x > 10000))
{
EnumerateAndPrintValues(allAndAny.RealtimeDownloadedEnumerable.Where(x => x > 10000));
}
timer.Stop();
var millisecondsForEnumeration = timer.ElapsedMilliseconds;
Console.WriteLine($"\nDynamic Collection:\nTotal Time Taken: {millisecondsForEnumeration}\nInitialization Time: {0}\nEnumeration Time: {millisecondsForEnumeration}");
//Results are Not Idempotent
timer.Reset();
timer.Start();
var firstPass = allAndAny.RealtimeDownloadedEnumerable.Where(x => x > 10000);
var secondPass = allAndAny.RealtimeDownloadedEnumerable.Where(x => x > 10000);
//You can not ignore the warning related to multiple enumerations below because multiple enumerations will yield different results and each enumeration would be costly
var equalNumberElements = firstPass.Count() == secondPass.Count();
var eachElementExistsInOther = firstPass.All(thisItem => secondPass.Any(thatItem => thisItem == thatItem));
timer.Stop();
Console.WriteLine($"\n\n**Dynamic Collection**\nBoth Passes have Equal Items: {equalNumberElements}\nBoth passes have exact same elements: {eachElementExistsInOther}");
Console.WriteLine($"Total Time Taken in All and Any Operations: {timer.ElapsedMilliseconds}");
}
static void AnyAndAllExampleConcrete()
{
/*
* There are a few things to care about when using any and all on IEnumerable.
* 1. On Concrete Implementations and Pure Functions, you get predictable and deterministic results
* 2. On dynamic data sources returning IEnumerable because there is mutation involved results are not predictable and non deterministic.
*/
Stopwatch timer = new Stopwatch();
timer.Start();
var allAndAny = new AllAndAny();
timer.Stop();
var millisecondsForInit = timer.ElapsedMilliseconds;
timer.Reset();
timer.Start();
if (allAndAny.ListBackedEnumerable.Any(x => x > 10000))
{
EnumerateAndPrintValues(allAndAny.ListBackedEnumerable.Where(x => x > 10000));
}
timer.Stop();
var millisecondsForEnumeration = timer.ElapsedMilliseconds;
Console.WriteLine($"\nConcrete Collection:\nTotal Time Taken: {millisecondsForInit+ millisecondsForEnumeration}\nInitialization Time: {millisecondsForInit}\nEnumeration Time: {millisecondsForEnumeration}");
//Results are Idempotent (unless side effected)
timer.Reset();
timer.Start();
var firstPass = allAndAny.ListBackedEnumerable.Where(x => x > 10000);
var secondPass = allAndAny.ListBackedEnumerable.Where(x => x > 10000);
//You can ignore the warning related to multiple enumerations below
var equalNumberElements = firstPass.Count() == secondPass.Count();
var eachElementExistsInOther = firstPass.All(thisItem => secondPass.Any(thatItem => thisItem == thatItem));
timer.Stop();
Console.WriteLine($"\n\n**Concrete Collection**\nBoth Passes have Equal Items: {equalNumberElements}\nBoth passes have exact same elements: {eachElementExistsInOther}");
Console.WriteLine($"Total Time Taken in All and Any Operations: {timer.ElapsedMilliseconds}");
}
