React JS - Tutorial For Beginners

This tutorial guide is meant for beginners who fail to progress while learning React. This React guide will describe the concept in clear words and plain language so that you don’t feel confused or irritated when you start practicing React.

What is React JS?

React JS is a JavaScript library started by Mr. Jordan Walke, a member of the Facebook team in 2011 that is optimized for reusable UI components. It is simply a JavaScript library built for user-friendly and responsive UI components. They are generally called ‘React.’ This library is used to render UI modules. It is primarily used for both server and front-end operations.

How does React JS work?

React operates by modifying the DOM of the website and making some changes to the DOM during website interaction/update. These modifications to the DOM can be made by a user or the device automatically. It detects the modifications made to the DOM and then restores them, making them quick for dynamic websites, as only a small portion of the HTML code is updated without reloading the entire website.

Features of React JS

JSX - JSX is an extension to JavaScript Syntax. JSX is a basic JavaScript that can quote HTML and create subsystems with this HTML tag syntax. JSX is not required in the production of React, but it is recommended.
Components - React is everything about components. Everything must be regarded as a component. This helps you to retain the code while you are working on bigger tasks.
Unidirectional data flow and Flux - React introduces a one-way flow, making it easier to think for the program. Flux is a pattern that can preserve unidirectional data.
License - React is Facebook Inc. approved. Documentation is permitted under CC BY 4.0.

Advantages of using React JS

Performance

React JS uses virtual DOM. The use of virtual DOM makes React a popular javascript library with high-performance.

Speed

React helps developers use individual elements of the program on both the client-side and the server-side, which eventually improves the development process’s pace.

Efficiency

React code is easy to manage and is efficient because of its modular nature in contrast with other front-end frameworks. In exchange, this simplicity saves a great deal of time and expenses for organizations.

Usefulness

Implementation of React is very simple if you are familiar with the fundamentals of JavaScript. In reality, an expert developer from JavaScript can easily learn anything within and outside of the React framework within one or two days.

Skills required before learning React JS

You should know a few things in advance before you start learning React.

A decent command on HTML and CSS
Fundamentals of JavaScript
Basic knowledge of DOM
Familiar with syntax and features of ES6.
Globally built Node.js and npm

Conclusion

In this article, we discussed various topics from introduction to react js, functionality, features, benefits, and prerequisites for learning React JS. We hope this article will be helpful for all the beginners who wish to start learning React JS.

Other useful articles: