Introduction to RxJS – Extensions for JavaScript Reactive Streams

Reactive Extensions for JavaScript (RxJS) is a precise alternative for callback or Promise-based libraries. It treats any ubiquitous source of events in the exact same manner, whether it is reading a file, making an HTTP call, clicking a button, or moving the mouse. RxJS is built on top of the pillars of functional and reactive programming, as well as a few popular design patterns such as Observer and Iterator.

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