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ReactJS Installation

To install React.js, you’ll need to set up a development environment that includes Node.js and npm (Node Package Manager). React.js is a JavaScript library for building user interfaces, and it relies on Node.js and npm to manage dependencies and run scripts. Here’s a step-by-step guide to installing React.js:

  1. Install Node.js and npm: You can download and install Node.js and npm from the official website: https://nodejs.org/ Make sure you download the LTS (Long-Term Support) version, as it’s the most stable and widely used version.
  2. Verify the Installation: After installing Node.js and npm, open your terminal (or command prompt) and run the following commands to check the installed versions:
Bash
 node -v
 npm -v

You should see the installed Node.js and npm versions printed in your terminal. If you see the versions, it means Node.js and npm were installed successfully.

  1. Create a React Application: React provides a tool called create-react-app to set up a new React application with a basic project structure and development environment. To create a new React app, run the following command in your terminal:
Bash
 npx create-react-app my-react-app

Replace my-react-app with your preferred project name.

  1. Navigate to Your Project: Change your working directory to the newly created React application:
Bash
 cd my-react-app
  1. Start the Development Server: Once you’re inside your React app’s directory, you can start the development server with the following command:
Bash
 npm start

This will launch your React app in your default web browser. You should see a “Welcome to React” message if everything is set up correctly.

  1. Start Coding: You can now start building your React application. The main entry point for your application is usually the src/index.js file. You can edit this file and create new components in the src directory.

That’s it! You’ve successfully installed React.js and created a new React application. You can now start developing your web application using React’s components and features.

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