It is the one question that comes up every time. The main reason behind the framework and library is that a framework defines the structure and architecture of code. In contrast, a library looks more alike furniture added to the existing house.In short, a library is a collection of programs that can perform repetitive functions during development. On the other side, it creates UI components for the application built with HTML, which defines how a framework functions.Over here, React uses a few characteristics of the framework and make use of the library to give optimized solutions to your applications.