How do I start ReactJS code?

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Barry Dyngles

Are you wanting to try out ReactJS code? React is a mainstream JavaScript library used for building user interfaces. It’s a potent tool with a steep learning curve, but with the correct guidance, you can start up quickly and easily. In this article, we will talk about the basics of React and how to begin with React code.

What Is ReactJS?

ReactJS is a JavaScript library fashioned by Facebook. It’s used to design interactive user interfaces, and is the basis of a lot of popular web and mobile applications. React components are composed of HTML and JavaScript, and permit developers to quickly create complex applications.

Why Utilize ReactJS?

React is a potent tool for creating interactive user interfaces. It’s speedy, efficient, and highly scalable, making it a great selection for large, performance-sensitive applications. Additionally, React’s component-based strategy makes it uncomplicated to develop intricate applications without having to rewrite the same code over and over again.

Getting Started With ReactJS

Now that you have a basic idea about React, let us begin. The first step is to install the React library. You can do this by downloading the React library from the official React website.

Once you have installed the library, you’ll need to make a React application. The most straightforward way to do this is to employ the create-react-app command-line tool. This will build a fundamental React application with all the essential files and libraries.

Next, you’ll need to make a JavaScript file to write your React code. This file should be stored in the src directory of your React application. The file should have the .js extension and should contain the following code:

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import React from ‘react’;
import ReactDOM from ‘react-dom’;


Hello, world!


This code will produce a React component that displays “Hello, world!” in the browser.

Finally, you’ll need to open the index.html file in your React application. This file should include the following code:



This code will render the React component you created in the previous step.


Getting started with ReactJS code doesn’t have to be complicated. With the right direction and a few straightforward steps, you can quickly and easily get up and running with React code. When you’ve mastered the fundamentals, you’ll be able to create powerful applications with ease.

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