React JS with Redux is a predictable state container for JavaScript applications. It helps you write apps that behave consistently, run in different environments (client, server, and native), and are easy to test. Redux manages an application’s state with a single global object called Store.
Principles of Redux
The three most important Redux principles are:
- Single Source of Truth
- State Is Read-Only
- Changes are Made with Pure Functions
React is the most popular front-end JavaScript library available today. From startups to large corporations, more companies are adopting this widely used technology. Well-known brands like Netflix, Airbnb, and The New York Times are using it for their websites and their mobile applications.
Redux is a predictable state container for JavaScript apps. As an application grows, it becomes difficult to keep it organized and maintain data flow. That is where Redux comes to the rescue.
This React with Redux article will help you gain a working understanding of the basic concepts of this popular technology. For starters, we’ll get familiar with some of the basic Redux concepts. Once we’re done, we will create a simple React application with Redux, then an application without it. This exercise will clearly show the difference between the two implementations.
Now before we get into the depths of understanding React with Redux, let us first understand why Redux!
Demo Application: React with Redux
In this demo, we will create a web application in two ways:
- Web Application without Redux (Normal working with the use of State objects)
- Web Application with Redux (Using Store and reducers)
The goal of this application is to display a subscribe button along with a message reading “Subscribe to Simplilearn.” Once the user clicks on the button, the message changes to “Thank you for subscribing.” So first let’s start by building the application without Redux. Later on, we will look into Redux implementation. As we work through both designs, note the differences.
