React

Introduction to React:

React (also called React.js or ReactJS) is a JavaScript library for building modern, interactive user interfaces. It was developed by Facebook in 2013 and is widely used to create single-page applications (SPAs) and dynamic web apps.

Unlike traditional web apps that reload the whole page on changes, React allows updating only the parts of the UI that need to change, making apps fast and efficient.

A typical React project is organized in a structured way to keep the code modular and maintainable.

React project file structure

• public/ → Contains static files that won’t be processed by Webpack (like index.html, images).
• src/ → Main source code folder where all React components, pages, and logic reside.
• components/ → Small, reusable UI elements.
• pages/ → Components representing entire pages or views.
• styles/ → CSS/SCSS for styling components.
• utils/ → Helper functions or constants.
• App.jsx → Root component that renders the app.
• index.js → Entry point where React renders <App /> into index.html.

This structure allows developers to organize components, pages, styles, and utilities efficiently, making the app easier to build, scale, and maintain.

Advantages of React

• Fast and efficient updates with Virtual DOM
• Reusable components reduce development time
• Large community support
• Easy integration with other libraries or frameworks
• SEO-friendly (with server-side rendering)