.
Keeping this in consideration, why we use provider in react?
Overview. The <Provider /> makes the Redux store available to any nested components that have been wrapped in the connect() function. Since any React component in a React Redux app can be connected, most applications will render a <Provider> at the top level, with the entire app's component tree inside of it.
Likewise, why should I use react JS? React allows developers to create large web applications which can change data, without reloading the page. The main purpose of React is to be fast, scalable, and simple. It works only on user interfaces in application. This corresponds to view in the MVC template.
In this way, why we use redux in react JS?
Redux is a predictable state container for JavaScript applications. It helps you write applications that behave consistently, run in different environments (client, server, and native), and are easy to test. While it's mostly used with React, it can be used with any other JavaScript framework or library.
Why do we need mapDispatchToProps?
Providing a mapDispatchToProps allows you to specify which actions your component might need to dispatch. It lets you provide action dispatching functions as props. Therefore, instead of calling props.