What is React 📌

React is a popular JavaScript library for building user interfaces, primarily for web applications. It was developed by Facebook and is now maintained by Meta and an open-source community. React allows developers to build complex UIs by breaking them down into smaller, reusable components. Some key features of React include:

• Components: React is built around the concept of components, which are self-contained UI elements that can be reused throughout your application.
• Virtual DOM: React uses a virtual representation of the DOM, which is more efficient than directly manipulating the actual DOM.
• State management:b> React provides a way to manage state with in components, which makes it easier to build complex UIs.
• JSX: React uses a syntax extension called JSX, which allows you to write HTML-like code within your JavaScript files.

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🎄Setup React On System🎄

First Install Node Js https://nodejs.org/en/ on your system

1.method using npm

npm init react-app tech-app
cd tech-app
npm start

2.method using npx

npx create-react-app tech-app
cd tech-app
npm start

What is npm and npx

• npm (Node Package Manager): It's used to install packages globally or locally in your project. For React, you typically run:
• npx (Node Package Execute): It comes with npm (since version 5.2) and is used to run packages without globally installing them. For example, to create a new React app:

3.method using npm vite

npm create vite@latest
cd tech-app 
npm install
npm run dev

What is vite+react

Vite is a fast build tool for modern web projects. To create a React app with Vite, use: It offers faster dev servers and optimized builds compared to traditional tools like Create React App.