Creating Pattern<T>
The Pattern<T> is an odd kind of message that we can use to create flattened sequences of values sourcing from multiple sources.
As we have already seen in the Combining operators section of
Chapter 3,
Reactive Extension Programming, we can use the Zip operator to create a single output from multiple sources:
var values2 = Observable.Range(0, 100).Where(x => x % 2 == 0);
var values3 = Observable.Range(0, 100).Where(x => x % 3 == 0);
var values5 = Observable.Range(0, 100).Where(x => x % 5 == 0);
//flatten sourcing sequences into a new sequence
//based on the sourcing message index
var zip = values2.Zip(values3, values5, (a, b, c) => new { a, b, c });
Console.WriteLine("Zip:");
zip.Subscribe(x => Console.WriteLine(x));
Other than the Zip operator, the Rx library give us the ability to create Pattern, a group of messages sourcing from different sequences at the same speed by correlating...
