Hello World React JS | React JS 19 Tutorial | Reactjs Projects |

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Modules and Files:

• node_modules:- This folder contains all the packages and dependencies that your React app needs to work.
It’s automatically created when you run npm install.
You never edit anything inside this folder — npm manages it for you.

• public:- The public folder holds static files — things like the favicon, images, and most importantly, the index.html file.

• src:- This is the most important folder where all your React code lives.

It contains your components, styles, and logic.

main.jsx (or index.js in CRA): This is the entry point of your app. It connects React to the index.html file in the public folder.

App.jsx (or App.js): This is your main React component — the first thing that shows up on the screen.

App.css: This file holds the styles for the App component.

• package.json:- This file keeps track of your project’s dependencies, scripts, and project info.

• gitignore:- This file tells Git which files and folders it should ignore when you push your code to GitHub — for example, the node_modules folder.

• README.md:- This file usually contains a short description or instructions about your project.
You can edit it later to add your own notes or documentation.

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