Many Observables can emit error events, and there are operators available to preemptively catch and handle those errors or retry the operation. Also, there are drivers that guarantee not to terminate with an error event that can determine what to return in the event an error does occur ahead of time.
We did this earlier by simply returning an empty array. We will show some examples of using Driver, which is defined in RxCocoa.
In this chapter, we will learn the following:
- Catching and handling errors
- Error handling operators
- Catch, retry, related terms, and concepts
