Simply put, reactive programming is nothing but programming with asynchronous data streams. By applying various operations on stream, we can achieve different computational goals. The primary task in a reactive program is to convert the data into streams, regardless of what the source of the data is. While writing modern graphical user interface applications, we process mouse move-and-click events. Currently, most systems get a callback, and process these events as and when they happen. Most of the time, the handler does a series of filtering operations before it invokes the action methods associated with the event calls.
In this particular context, reactive programming helps us in aggregating the mouse move-and-click events into a collection, and sets filters on them before notifying the handler logic. In this way, the application/handler logic does not get executed unnecessarily.
Stream-processing model is well known, and it is very easy to encode by application...