Hands-On Reactive Programming with Python

The ignore_elements operator

The ignore_elements operator emits no items. This operator completes when its source observable completes. The following figure shows the marble diagram of this operator:

Figure 9.8: The ignore_elements operator

The prototype of this operator is the following:

Observable.ignore_elements(self)

Here is an example of this operator:

numbers = Observable.from_([1, 2, 3, 4, 5, 6])numbers.ignore_elements().subscribe(    on_next = lambda i: print("on_next {}".format(i)),    on_error = lambda e: print("on_error: {}".format(e)),    on_completed = lambda: print("on_completed"))

This gives the following result:

on_completed

It is ...