Do you know the advantages of reactive stack and how it works?

Reactive programming is an approach to building applications focused on asynchronous data and event processing using data streams. Its advantages:

• High performance and scalability through non-blocking processing.
• Data stream management with transformation, filtering, and combining operators.
• Improved responsiveness of applications, as operations do not block the main thread.

How it works: data and events are represented as streams, to which handlers subscribe. When data arrives, it passes through a chain of operators that can modify or filter it, and then the result is passed to subscribers.

Example in Java using Reactor:

Flux<Integer> numbers = Flux.range(1, 5)
    .map(n -> n * 2)
    .filter(n -> n > 5);

numbers.subscribe(System.out::println); // Will output 6, 8, 10

Here, a stream of numbers from 1 to 5 is created, each number is multiplied by 2, then values greater than 5 are filtered, and the result is output.