The user interface of any web application plays a vital role in either making it a success or dragging it toward failure. If the user interface is friendly and responsive, users of that application will interact and play around with it for longer period and also revisit it many times. But if the interface is complex and lags on different occasions, it makes the user frustrated and more likely to move away from that application. It doesn't matter whether the application has very strong backend architecture and database support; these things are irrelevant to the end user. The end user needs a very good-looking, friendly, interactive, and responsive application at their end; with this, any application can be on the road to success.

In this chapter, we will cover the following libraries in detail, along with their key concepts, with respect to building...