Utility Operators: DoOnEach, and Cache
Explore the utility operators DoOnEach and Cache in RxJava to understand how they assist in logging Observable events and caching emissions for reuse. This lesson helps you apply these operators to debug streams and optimize data management by avoiding redundant computations, enhancing your reactive programming skills.
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Utility operators
RxJava has a handful of utility operators that don’t necessarily modify the emissions themselves through transformations or filters, but instead allow us to do various actions such as getting insight into events in the stream itself—for debugging or logging purposes—or caching results emitted in the stream.
DoOnEach
The .doOnEach() function is an Operator that enables listening to events that occur in an Observable stream, or in other words when .onNext(), .onError() and .onComplete() are invoked by providing an Observer. Generally, this operator ...