What is REACT JS?

REACT JS is a powerful and open-source JavaScript library for building user interfaces (UIs), particularly for single-page applications. It was created by Facebook and is widely used for front-end web development.
Key features of REACT are as Follows: 

Component-Based Architecture
Declarative Programming
Virtual DOM
JSX
Hooks

Benefits of REACT JS

Component-Based Architecture:
React promotes building UIs using reusable, self-contained components. This modularity simplifies development, improves maintainability, and makes it easier to manage complex applications.

Virtual DOM for Efficient Rendering:

React utilizes a Virtual DOM, which is a lightweight copy of the actual DOM. It efficiently updates and renders only the necessary components when data changes, leading to faster performance and a smoother user experience.

Declarative Syntax

React's declarative nature allows developers to describe how the UI should look, and React handles the rendering and updates, simplifying UI development and making code more predictable.

JSX for Enhanced Readability

JSX (JavaScript XML) allows developers to write HTML-like syntax within JavaScript code. This combines UI structure and logic, making components easier to understand and build.

Flexibility and Performance Optimization

React's modular structure and Virtual DOM contribute to its flexibility and high performance, enabling the creation of responsive and scalable web applications.

Strong Community and Ecosystem

React boasts a large and active developer community, providing extensive resources, libraries, tools, and support for developers.

React offers powerful developer tools that aid in debugging and inspecting component hierarchies and state, accelerating the development process.

Some Daily usable commands

npx create-react-app
for creating simple react app
npx create-vite@latest
for vite app
cd
for entering the correct path folder
npm run dev
for live preview of the app
npm run build
for building apps for deploying on server

Npx or Npm

Node Package Manager
Used to install, manage, and run packages (libraries or tools).
Node Package eXecute
Used to run packages without installing them globally.

Create app using REACT JS

Creates apps using react is very common we just open the terminal of vs code the put this command npx create-react-app or using vite bundular u can use npx create-vite@latest to create an app.