Web / RxJs Interview questions

Why is rxjs called Push/Reactive and NOT Pull/Imperative?

Imperative programming means that the listener code (Observer) is responsible to pull stream of data. Reactive programming means you register a callback and the stream is responsible to push data.

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What is the full form of RxJS? What is the purpose of RxJS? What are observables and observers? How to unsubscribe in RXJS. Types of observables. How to install RxJS? Difference between RXJS and Promise. In Angular, where did you use RXJS? Mention a few RXJS operators. Why is rxjs called Push/Reactive and NOT Pull/Imperative? Explain Observer in RXJS. What are observable creation functions? What is multicasting? What type are RXJS Observables? hot or cold? What is "tap" operator in RxJS? How do you perform error handling in observables? Explain the shorthand notation for subscribe method.

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