static void MainA(string[] args)
{
var values = Observable.Range(1, 5);
values.Inspect("values");
values.Count().Inspect("count");
var intSubj = new Subject <int>();
intSubj.Inspect("intSubj");
intSubj.Min().Inspect("min"); // not a running minimum!
intSubj.Sum().Inspect("sum"); // requires all values
intSubj.Average().Inspect("avg"); // double!
intSubj.OnNext(2);
intSubj.OnNext(4);
intSubj.OnNext(1);
intSubj.OnCompleted();
// first, last, single
var replay = new ReplaySubject <int>();
// later
replay.OnNext(-1); // doesn't complete unless OnCompleted
replay.OnNext(2);
replay.OnCompleted();
replay.FirstAsync(i => i > 0).Inspect("FirstAsync"); // doesn't require completion
replay.FirstOrDefaultAsync(i => i > 10) // yields 0 because no element matches
.Inspect("FirstOrDefaultAsync"); // doesn't require completion
replay.SingleAsync().Inspect("SingleAsync"); // try commenting out one of OnNext
// requires completion! try commenting out OnCompleted -> no output
//replay.SingleOrDefaultAsync()
// Sum is always the final value, how about a running sum?
var subj = new Subject <double>();
int power = 1;
subj.Aggregate(0.0, (p, c) => p + Math.Pow(c, power++)).Inspect("poly");
subj.OnNext(1, 2, 4).OnCompleted(); // 1^1 + 2^2 + 4^3
// running sum? no problem
var subj2 = new Subject <double>();
subj2.Scan(0.0, (p, c) => p + c).Inspect("scan"); // same as Aggregate().TakeLast()
subj2.OnNext(1, 2, 3); //.OnCompleted();
// OnCompleted doesn't really matter anymore
}
public static void Main(string[] args)
{
var values = Observable.Range(1, 5);
values.Inspect("Values");
values.Count().Inspect("Count");
values.Average().Inspect("Average");
values.Max().Inspect("Max");
values.Min().Inspect("Min");
values.Sum().Inspect("Sum");
var replay = new ReplaySubject <int>();
replay.OnNext(-1, 2);
replay.OnCompleted();
replay.FirstAsync(i => i > 0).Inspect("First Async");
var replay2 = new ReplaySubject <int>();
replay2.OnNext(-1);
replay2.OnCompleted();
replay2.FirstOrDefaultAsync(i => i > 0).Inspect("First Or Default Async");
var replay3 = new ReplaySubject <int>();
replay3.OnNext(-1);
replay3.OnCompleted();
replay3.SingleAsync().Inspect("Single Async");
var replay4 = new ReplaySubject <int>();
replay4.OnNext(-1, 2);
replay4.OnCompleted();
replay4.SingleOrDefaultAsync().Inspect("Single Or Default Async");
var subj = new Subject <double>();
int power = 1;
subj.Aggregate(0.0, (p, c) => p + Math.Pow(c, power++)).Inspect("Poly");
subj.OnNext(1, 2, 4);
subj.OnCompleted();
var subj2 = new Subject <double>();
subj2.Scan(0.0, (p, c) => p + c).Inspect("Scan");
subj2.OnNext(1, 2, 3);
}