
RxJS
RxJS (Reactive Extensions for JavaScript) is a library that helps manage asynchronous data streams—such as user inputs, web service responses, or real-time updates—by allowing developers to observe, transform, and combine these streams easily. Instead of dealing with complex callback functions, RxJS provides a unified way to handle events over time, making code more readable and maintainable. It’s widely used in front-end applications to create responsive interfaces and handle multiple data sources seamlessly. Overall, RxJS simplifies working with asynchronous data, improving efficiency and code organization.