Combine framework interview Q

Question: What are some common operators provided by the Combine framework, and how do they facilitate reactive programming?

Answer: Combine framework offers a wide range of operators to manipulate and transform data streams in reactive programming. Some common operators include:

1. map: Transforms each element emitted by a publisher by applying a specified closure.
2. filter: Selects elements emitted by a publisher that satisfy a given predicate.
3. flatMap: Transforms each element emitted by a publisher into a new publisher, then flattens the resulting publishers into a single publisher.
4. merge: Combines multiple publishers into a single publisher that emits elements from all of the upstream publishers.
5. combineLatest: Combines the most recent elements emitted by multiple publishers into tuples, then emits a new tuple whenever any of the combined publishers emit a new element.
6. zip: Combines the elements emitted by multiple publishers into tuples, emitting a new tuple whenever all of the combined publishers have emitted a new element.
7. switchToLatest: Subscribes to a publisher that itself emits publishers, emitting elements from the most recent publisher it receives.

These operators enable developers to perform various transformations, filtering, combining, and flattening operations on data streams, allowing for flexible and powerful reactive programming paradigms in…