This video is a combination of the following three aspects: Introduction to Reactive Programming + Rx in Depth. Need for going Reactive, Understanding Event Streams, Getting familiar with APIs, and Building a BMI Calculator App. Introduce Rx concepts and similar APIs across many languages, Covering the necessary operators, Examples of Operators and Streams. Building a stopwatch appBuilding an Autocomplete search box with Rx. Creating operators and performing various operations such as transform, filter, combine, and error handling. About the AuthorI Shriyans Bhatnagar use Rx. js on a daily basis in work, mostly combining it with React and redux. Being a full stack developer, I often find myself using Rx on Node too. Playing around with a few Reactive librariesRxJs, most. js, and, bacon. jsand Reactive frameworks such as cycle. js, I absolutely love writing functional Reactive code. I am an avid fan of pure functional programming. I have played around with Haskell, elm, and erlang quite a lot and have some experience writing clojureScript. These days I really dig ReasonML (a new interface to OCaml by Facebook).I started out as a backend engineer writing Ruby applications using rails, but I quickly moved on to using JavaScript for both the backend and frontend. My hobby projects vary from making Node-powered bots using Johnny-Five with the Arduino to machine-learning projects using Python libraries such as Scikit and Tensorflow. But, ultimately, I truly love building user interfaces and providing a good user experience.