Why React?

In the previous chapter, we manually rendered the user interface using Document Object Model (DOM) operations to generate HTML code with JavaScript. As you can imagine, it would be quite painful to have to manually do DOM operations to build your entire user interface. This is where React comes in. From React's official documentation: React - A JavaScript library for building user interfaces.

React takes a new approach to building user interfaces, by making use of functional programming principles—similarly to Redux!

The principles of React

Similarly to Redux, React also comes with a set of principles, as follows:

• Declarative: This means you write code of what you want and do not have to think about...