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React.js Notes for Professionals

Comprehensive guide for learning and mastering React.js, covering components, hooks, state management, routing, and performance optimization.

Pages

420

Format

PDF Document

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About this Course

React.js is a popular JavaScript library for building user interfaces, developed and maintained by Facebook. It enables developers to create reusable UI components and efficiently update the DOM through a virtual DOM diffing algorithm.

This guide covers React fundamentals, JSX syntax, functional and class components, hooks such as useState and useEffect, context API, routing with React Router, state management with Redux/Zustand, performance optimization, testing with Jest and React Testing Library, and deployment best practices.

Whether you're new to front-end development or experienced with JavaScript frameworks, these notes provide a thorough reference for professional React.js development.

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What You'll Learn

JSX syntax and component structure
Functional and class components
State and lifecycle management with hooks
Routing with React Router
Global state management with Redux or Context API
Performance optimization and code splitting
Testing components with Jest and React Testing Library
Best practices, accessibility, and deployment strategies