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ReactJS – Environment Setup

To set up your development environment for ReactJS, follow these steps:

Install Node.js and npm:

  • Visit the official Node.js website:
  • Download the appropriate installer for your operating system.
  • Run the installer and follow the installation instructions.
  • npm (Node Package Manager) will be installed automatically along with Node.js.

Verify the installation:

  • Open a terminal or command prompt.
  • Run the following command to check if Node.js and npm are installed correctly:
    • node -v
    • npm -v
  • The above commands should print the installed versions of Node.js and npm. If you see the version numbers, the installation was successful.

Create a new React App

  • Open a terminal or command prompt.
  • Navigate to the directory where you want to create your React app.
  • Run the following command to create a new React app using Create React App:
    • npx create-react-app my-app
  • Replace my-app with the desired name for your app.
  • Wait for the command to finish. It will create a new directory called my-app (or the name you specified) and set up the initial project structure.

Start the development server:

  • Navigate into the app’s directory:
    • cd my-app
  • Run the following command to start the development server:
    • npm start
  • This will start the development server and open your app in a web browser. Any changes you make to the source files will automatically be reflected in the browser.

Congratulations! You have set up your development environment for ReactJS. You can now start building your React app by editing the necessary files and adding your own components.

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