Reactive Streams · interview question
In the Reactive Streams API, what does the onError() method do?
Multiple choiceEasychapter-19-curatedpremiumreactive-streamspublisher-and-subscriber
Answer and explanation
Correct answer
B. Notifies the Subscriber of an error during data emission
Why
The onError() method is used by the Publisher to notify the Subscriber that an error has occurred during data emission. This allows the Subscriber to handle the error appropriately.
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