React Fundamentals

Transform your JavaScript skills into professional React expertise with this comprehensive, hands-on course. Learn to build modern, scalable React applications using the latest React 18 features, hooks, and industry best practices. This instructor-led course combines theoretical understanding with practical application through real-world projects.

Duration: 10-12 hours | Format: Interactive AI-guided learning | Level: Intermediate

Who Should Take This Course

Perfect for:

JavaScript developers ready to master React
Front-end developers wanting to level up their skills
Full-stack developers expanding their toolkit
Career changers with JavaScript experience
Students preparing for React developer roles

Prerequisites:

Strong JavaScript (ES6+) knowledge including promises, destructuring, and arrow functions
Understanding of HTML/CSS fundamentals
Basic familiarity with modern web development tools
Node.js and npm experience helpful but not required

What You'll Learn

Core React Mastery

Component Architecture: Build reusable, maintainable components with modern patterns
State Management: Master useState, useReducer, and Context API for complex applications
Side Effects: Handle API calls, timers, and cleanup with useEffect
Modern Hooks: Leverage useMemo, useCallback, and custom hooks for optimization
React 18 Features: Implement Suspense, concurrent rendering, and automatic batching

Professional Development Skills

Testing & Debugging: Write unit tests and debug applications with React Developer Tools
Performance Optimization: Apply code splitting, lazy loading, and optimization techniques
Form Handling: Build complex forms with validation and accessibility
Error Handling: Implement error boundaries and graceful failure patterns
Best Practices: Follow industry standards for code organization and maintainability

Real-World Application

API Integration: Fetch and manage data from external services
Responsive Design: Create mobile-first, accessible user interfaces
Component Patterns: Master compound components, higher-order components, and render props
State Architecture: Design scalable state management for large applications

Hands-On Projects

Company Landing Page (Lesson 1)

Start with the fundamentals by building a responsive company website with multiple components, modern styling, and proper project structure.

Product Catalog (Lesson 2)

Create a dynamic product display system with props, validation, and conditional rendering.

Interactive Task Manager (Lesson 3)

Build a full-featured task management application with CRUD operations, form validation, and state management.

Weather Dashboard (Lesson 4)

Develop a real-time weather application with API integration, loading states, and error handling.

Employee Directory (Lesson 5)

Construct a searchable, filterable employee directory with dynamic rendering and performance optimization.

Shopping Cart System (Lesson 6)

Engineer a complex e-commerce cart with advanced state management, context sharing, and custom hooks.

Personal Finance Tracker (Capstone Project 1)

Build a comprehensive financial management application featuring:

Real-time expense/income tracking
Budget management and alerts
Data visualization with interactive charts
Local storage persistence
Responsive dashboard design

Real Estate Platform (Capstone Project 2)

Create a professional property listing platform including:

Advanced search and filtering system
Interactive image galleries
Favorites system with persistence
Contact forms and inquiry management
Map integration for property locations

Learning Experience

AI-Guided Instruction

Learn from an advanced AI instructor that adapts to your pace, provides instant feedback, and offers personalized explanations with real-world analogies.

Interactive Labs

Each lesson includes hands-on exercises with step-by-step guidance, allowing you to immediately apply concepts in practical scenarios.

Project-Based Learning

Move beyond simple examples to build production-ready applications that demonstrate real-world problem-solving skills.

Progress Tracking

Monitor your learning journey with built-in assessments, code reviews, and milestone achievements.

Course Curriculum

Module 1: React Foundations (3 hours)

Introduction to React & Modern Setup
Components, Props & JSX
State Management with Hooks

Module 2: Advanced Concepts (4 hours)

Side Effects with useEffect
Lists, Keys & Dynamic Rendering
Advanced Hooks & State Patterns
Component Patterns & Advanced Concepts

Module 3: Professional Development (2 hours)

Forms & Input Handling
React 18 Features & Modern Patterns
Testing & Debugging

Module 4: Real-World Applications (3 hours)

Comprehensive Projects
Personal Finance Tracker
Real Estate Listing Platform

What You'll Build

By course completion, you'll have created:

8 practical applications demonstrating progressive skill development
2 portfolio-worthy projects showcasing professional-level React skills
Production-ready code following industry best practices
Comprehensive test suites ensuring code reliability

Career Impact

Skills That Employers Want

Modern React development with hooks and functional components
State management for complex applications
Performance optimization and testing
API integration and error handling
Responsive, accessible user interface design

Portfolio Development

Graduate with two substantial projects that demonstrate your ability to architect and build complete React applications - perfect for showcasing to potential employers.

Industry Preparation

Learn the same patterns and practices used by top technology companies, preparing you for senior developer roles.

Technical Requirements

Required Software:

Node.js (18+)
Modern web browser
Code editor (VS Code recommended)
Git for version control

Hardware Requirements:

Computer with 4GB+ RAM
Stable internet connection
Modern operating system (Windows 10+, macOS 10.14+, or Linux)

Get Started Today

Ready to master React and advance your development career? Join thousands of developers who have transformed their skills with our comprehensive React course.

Enroll now and start building professional React applications in just hours!

Category: Software Development

Level: Foundational

Course Code: REACT-101

Duration: 16h 30m

Price: $99.99 for 6 months

Tokens Required: 1

Access Duration: 6 months

Lab Environment: ✓ Included

Join to Start Learning

Course Curriculum

Lesson 1: Introduction to React & Modern Setup

This lesson provides a foundational introduction to React, a powerful JavaScript library for building dynamic user interfaces. You'll explore React's core philosophy, including its use of the virtual DOM and component-based architecture. The session also walks through setting up a modern development environment tailored for React 18, highlighting its latest features like concurrent rendering and improved performance. By the end, you’ll have a strong understanding of React’s building blocks and be ready to start creating responsive, maintainable UI components.

Estimated Duration: 1 h 30 m

Hands-On Exercises

Lesson 1 Lab: Company Landing Page

In this hands-on lab, you will create a modern company landing page using React. This lab introduces you to the fundamental concepts of React development including JSX syntax, component structure, and modern development workflow. By the end of this lab, you will have built a complete responsive landing page with multiple reusable components.

Estimated Time: 30 minutes

Exercise 2: Create the Header Component

In this exercise, you will create your first custom React component - a website header with navigation. You'll learn about JSX syntax, component creation, and basic styling with CSS modules.

Estimated Time: 15 minutes

Exercise 3: Create the Hero Section Component

In this exercise, you will create a hero section component that showcases compelling content and call-to-action buttons. You'll learn about component composition and creating visually appealing layouts with CSS flexbox.

Estimated Time: 15 minutes

Exercise 4: Create Services and Footer Components

In this exercise, you will create the final two components to complete your landing page: a services section showcasing company offerings and a footer with contact information. You'll practice component reusability and learn about mapping over data arrays.

Estimated Time: 15 minutes

Lesson 2: Components, Props & JSX

In this lesson, you'll dive deeper into the core building blocks of React—components and props—while mastering the syntax that powers them: JSX. You'll learn how to write clean, expressive UI code using JSX and how to structure applications using functional components. The session covers passing data through props, validating them with PropTypes, and introduces basic TypeScript usage for improved type safety. You’ll also explore component composition and patterns for rendering UI conditionally, setting the stage for scalable and maintainable React applications.

Estimated Duration: 2 h 0 m

Hands-On Exercises

Exercise 1: Product Catalog Display

In this hands-on lab, you will build a dynamic product catalog that displays different product cards with images, descriptions, prices, and ratings. You'll learn how to pass data between components using props, implement prop validation with PropTypes, and create reusable components that can be customized through different prop values. This lab emphasizes component composition and conditional rendering techniques.

Estimated Time: 45 minutes

Exercise 2: Create the ProductCard Component with Props

In this exercise, you will create a reusable ProductCard component that accepts props to display product information. You'll learn how to destructure props, implement conditional rendering, and add prop validation using PropTypes.

Estimated Time: 15 minutes

Exercise 3: Create ProductCatalog Component with Props Mapping

In this exercise, you will create a ProductCatalog component that displays multiple product cards by mapping over an array of products. You'll learn how to pass different props to multiple instances of the same component and implement basic layout with CSS Grid.

Estimated Time: 15 minutes

Exercise 4: Add Category Filter with Props and Conditional Rendering

In this exercise, you will create a CategoryFilter component and implement filtering functionality that demonstrates how props can be used to control component behavior and implement conditional rendering based on different prop values.

Estimated Time: 15 minutes

Lesson 3: State Management with Hooks

This lesson introduces React’s powerful state management capabilities using hooks, with a focus on the useState hook. You'll learn how to manage local component state, handle user input through forms, and build controlled components that respond to user actions. The lesson also covers essential concepts like event handling and the importance of state immutability when updating values. By the end, you'll be equipped to manage dynamic UI behavior in modern React applications confidently.

Estimated Duration: 2 h 0 m

Hands-On Exercises

Exercise 1: Interactive Task Manager

In this hands-on lab, you will build a comprehensive task management application that demonstrates state management using React's useState hook. You'll learn how to handle form inputs, manage component state, implement controlled components, and handle various user interactions. The application will allow users to add, edit, complete, and delete tasks with proper form validation and different task states.

Estimated Time: 45 minutes

Exercise 2: Create Task Form with Controlled Components

In this exercise, you will create a form component that allows users to add new tasks. You'll learn about controlled components, form validation, and how to update state based on user input. This demonstrates the core concept of binding form inputs to state variables.

Estimated Time: 15 minutes

Exercise 3: Create Task List with State Manipulation

In this exercise, you will create a TaskList component that displays tasks and allows users to mark them as complete, delete them, and edit them inline. You'll learn about different patterns for updating state, handling events, and implementing conditional rendering based on state.

Estimated Time: 15 minutes

Exercise 4: Add Task Filtering and Complete State Management

In this exercise, you will implement task filtering functionality and complete the state management by adding all the task manipulation functions to the main App component. You'll learn about complex state updates, array manipulation methods, and how to coordinate state between multiple components.

Estimated Time: 15 minutes

Lesson 4: Side Effects with useEffect

In this lesson, you'll explore how React handles side effects using the useEffect hook. You'll learn how to synchronize components with external systems like APIs, timers, and event listeners, while managing component lifecycle events in a functional way. The lesson emphasizes best practices for optimizing effect performance with dependency arrays and ensuring proper cleanup to avoid memory leaks. You’ll also get a first look at custom hooks for reusable logic and how to handle errors during asynchronous operations.

Estimated Duration: 2 h 0 m

Hands-On Exercises

Exercise 1: Weather Dashboard

In this hands-on lab, you will build a comprehensive weather dashboard that fetches real weather data from an API, displays current conditions with detailed information, and updates automatically every 30 seconds. You'll master the useEffect hook for handling side effects, data fetching patterns, cleanup functions, loading states, and error handling. This lab demonstrates real-world API integration and lifecycle management in React applications.

Estimated Time: 45 minutes

Exercise 2: Auto-Refresh with Cleanup Functions

In this exercise, you will implement automatic data refreshing using setInterval within useEffect and learn how to properly clean up side effects to prevent memory leaks. You'll understand the importance of cleanup functions and how they prevent components from causing issues after unmounting.

Estimated Time: 15 minutes

Exercise 3: Detailed Weather Components with Complex Effects

In this exercise, you will create detailed weather display components and implement more complex useEffect patterns including conditional effects, effect dependencies, and coordinated state updates. You'll learn how to manage related state changes and implement responsive UI updates based on data changes.

Estimated Time: 15 minutes

Exercise 4: Error Handling and Performance Optimization

In this exercise, you will implement advanced error handling patterns and add performance optimizations using proper useEffect dependency management. You'll learn how to handle network failures gracefully and optimize component re-renders.

Estimated Time: 15 minutes

Lesson 5: Lists, Keys & Dynamic Rendering

This lesson focuses on rendering dynamic content in React by working with lists of data. You’ll learn how to use JavaScript’s map() function to generate UI elements and understand the critical role of keys in React’s reconciliation process. The session covers practical techniques for filtering, searching, and sorting data, along with strategies for optimizing performance when working with large datasets. By the end, you'll be equipped to build fast, responsive interfaces that scale with dynamic content.

Estimated Duration: 1 h 30 m

Hands-On Exercises

Exercise 1: Employee Directory

In this hands-on lab, you will build a comprehensive employee directory that demonstrates dynamic list rendering, React keys, filtering, and sorting. You'll learn how to efficiently render large datasets, implement search functionality, and optimize list performance. This lab covers the essential patterns for working with dynamic data in React applications.

Estimated Time: 30 minutes

Exercise 2: Search and Filter Implementation

In this exercise, you will implement search and filtering functionality for the employee directory. You'll learn how to filter arrays based on user input, implement real-time search, and create dropdown filters for departments and locations. This demonstrates dynamic list manipulation and state-driven filtering.c

Estimated Time: 15 minutes

Exercise 3: Sorting and Performance Optimization

In this exercise, you will implement sorting functionality for the employee list and add performance optimizations for large datasets. You'll learn how to sort arrays by different criteria, implement dynamic sort controls, and optimize list rendering performance using React keys and memoization techniques.

Estimated Time: 15 minutes

Exercise 4: Advanced List Features and Optimization

In this exercise, you will implement advanced list features including pagination, bulk actions, and virtualization concepts. You'll learn how to handle large datasets efficiently, implement user-friendly navigation controls, and optimize performance for real-world applications with hundreds or thousands of items.

Estimated Time: 15 minutes

Lesson 6: Advanced Hooks & State Patterns

This lesson dives into advanced React hooks and state management patterns that enable more scalable and maintainable applications. You’ll learn how to use useReducer for managing complex state logic and useContext to eliminate prop drilling across deeply nested components. The session also introduces the creation of custom hooks to encapsulate reusable logic, and explores performance optimizations with useMemo and useCallback. Additionally, you’ll get hands-on with useRef for interacting with DOM elements and managing non-reactive values.

Estimated Duration: 2 h 0 m

Hands-On Exercises

Exercise 1: Advanced State Patterns & Custom Hooks

In this hands-on lab, you will build a Shopping Cart System that demonstrates advanced state management patterns using useReducer, useContext, and custom hooks. You'll learn how to manage complex state, create reusable logic with custom hooks, and implement context for global state sharing. This lab covers essential patterns for building scalable React applications.

Estimated Time: 45 minutes

Exercise 2: Global State Management with useContext

In this exercise, you will implement useContext to create a global shopping cart state that can be accessed from any component in the application. You'll learn how to create context providers, consume context in components, and avoid prop drilling for complex state management.

Estimated Time: 15 minutes

Exercise 3: Custom Hooks for Reusable Logic

In this exercise, you will create custom hooks to extract and reuse complex logic across components. You'll learn how to build custom hooks for API calls, local storage, form handling, and business logic. This demonstrates how to create reusable, testable, and maintainable code patterns.

Estimated Time: 20 minutes

Exercise 4: Complete Application Integration

In this final exercise, you will integrate all the advanced state patterns learned in this lesson to create a production-ready shopping cart application. You'll implement advanced features like bulk operations, order management, and performance optimizations that demonstrate real-world usage of useReducer, useContext, and custom hooks working together.

Estimated Time: 20 minutes

Lesson 7: Component Patterns & Advanced Concepts

This lesson explores advanced React patterns that promote reusability, flexibility, and performance. You’ll learn how to enhance components using higher-order components (HOCs) and the render props pattern, as well as how to build compound components for better inter-component communication. The session also covers robust error handling with error boundaries, and introduces performance optimization techniques like React.memo, code splitting with React.lazy, and other best practices for efficient rendering in large applications.

Estimated Duration: 1 h 30 m

Hands-On Exercises

Exercise 1: Component Patterns & Advanced Concepts

In this lab, you will build a sophisticated modal system that demonstrates advanced React patterns including compound components, render props, higher-order components, and React portals. You'll learn how to create reusable, flexible components that provide clean APIs while handling complex functionality like animations, keyboard navigation, and different modal types.

Estimated Time: 30 minutes

Exercise 2: Compound Components Pattern

In this exercise, you will implement the compound components pattern to create a flexible modal API that allows consumers to compose different modal parts together. You'll learn how to use React.Children, cloneElement, and context to create intuitive, declarative modal components.

Estimated Time: 15 minutes

Exercise 3: Error Boundaries and Advanced Modal Types

In this exercise, you will implement error boundaries to handle modal errors gracefully and create specialized modal types (confirmation, form, image gallery) that demonstrate real-world usage patterns. You'll learn how to build production-ready modals with proper error handling and type-specific functionality.

Estimated Time: 15 minutes

Exercise 4: Performance Optimization and Production Features

In this final exercise, you will implement React.memo, lazy loading, and advanced performance optimizations for the modal system. You'll also add production-ready features like modal management, accessibility enhancements, and comprehensive testing capabilities.

Estimated Time: 15 minutes

Lesson 8: Forms & Input Handling

In this lesson, you'll gain hands-on experience building complex and accessible forms in React. You'll explore advanced handling of controlled components, manage a variety of input types, and implement effective form validation techniques. The session introduces popular form libraries like Formik and React Hook Form to streamline state management and validation logic. Accessibility best practices and file upload handling are also covered, ensuring your forms are user-friendly and production-ready.

Estimated Duration: 1 h 30 m

Hands-On Exercises

Exercise 1: Forms & Input Handling

In this lab, you will build a comprehensive multi-step user registration form that demonstrates advanced form handling techniques in React. You'll learn how to manage complex form state, implement robust validation, handle file uploads, create accessible form components, and provide excellent user experience with progress indicators and error handling.

Estimated Time: 30 minutes

Exercise 2: Personal Information Step with Input Components

In this exercise, you will create reusable form input components and implement the personal information step with proper validation, accessibility features, and user experience enhancements. You'll learn how to build accessible form components and handle real-time validation.

Estimated Time: 15 minutes

Exercise 3: Account Setup Step with Password Strength Indicator

In this exercise, you will create the account setup step featuring a sophisticated password strength indicator, username availability checking, and password confirmation validation. You'll learn how to build interactive form components that provide real-time feedback to users.

Estimated Time: 15 minutes

Exercise 4: Profile Details and Final Validation

In this final exercise, you will create the profile details step with file upload functionality, multi-select interests, and the terms/privacy step. You'll also implement comprehensive form validation and submission handling to complete the registration system.

Estimated Time: 15 minutes

Lesson 9: React 18 Features & Modern Patterns

This lesson delves into the exciting new features introduced in React 18, highlighting how they enhance app performance and user experience. You’ll learn about concurrent rendering and its benefits, explore Suspense for seamless data fetching and lazy loading, and implement modern APIs like startTransition to prioritize urgent updates. The session also covers automatic batching to reduce unnecessary renders and discusses best practices using Strict Mode and React’s latest development tools.

Estimated Duration: 1 h 30 m

Hands-On Exercises

Exercise 1: React 18 Features & Modern Patterns

In this lab, you will build a sophisticated image gallery that demonstrates React 18's newest features including Suspense for data fetching, React.lazy for component code splitting, startTransition for smooth user interactions, and automatic batching. You'll learn how to leverage concurrent features to create performant, responsive user interfaces that provide excellent user experience.

Estimated Time: 30 minutes

Exercise 2: React.lazy and Code Splitting with startTransition

In this exercise, you will implement React.lazy for component code splitting and use startTransition to create smooth, non-blocking user interactions. You'll learn how to split your application into smaller bundles and prioritize urgent updates over less critical ones.

Estimated Time: 15 minutes

Exercise 3: Automatic Batching and Performance Optimization

In this exercise, you will explore React 18's automatic batching feature and implement performance optimizations using useDeferredValue and other concurrent features. You'll learn how to optimize rendering performance and create smooth user experiences even with heavy computations.

Estimated Time: 15 minutes

Exercise 4: Error Boundaries and Production Optimization

In this exercise, you will implement error boundaries to handle failures in lazy-loaded components and Suspense, create production-ready error handling, and apply React 18 optimization techniques. You'll learn how to build resilient applications that gracefully handle errors and perform well in production environments.

Estimated Time: 15 minutes

Lesson 10: Testing & Debugging

This lesson introduces essential tools and techniques for ensuring React applications are reliable and maintainable. You’ll learn how to write unit tests using React Testing Library, test both components and hooks, and handle async logic with mocks. The session also covers effective debugging with React Developer Tools, along with strategies for identifying performance bottlenecks and optimizing rendering behavior.

Estimated Duration: 1 h 0 m

Hands-On Exercises

Exercise 1: Testing & Debugging React Applications

In this demo lab, you will learn how to write comprehensive tests for React components using React Testing Library, debug React applications effectively using developer tools, and implement testing best practices. We'll test the task manager from Lesson 3, covering user interactions, state changes, and async operations.

Estimated Time: 15 minutes

Exercise 2: Writing Unit Tests for React Components

In this exercise, you will write comprehensive unit tests for the Task and TaskManager components using React Testing Library. You'll learn how to test user interactions, component state changes, and async operations.

Estimated Time: 10 minutes

Exercise 3: Testing Async Operations and Custom Hooks

In this exercise, you will learn how to test async operations, custom hooks, and complex user interactions. You'll also implement integration tests that verify multiple components working together.

Estimated Time: 10 minutes

Exercise 4: React Developer Tools and Debugging Techniques

In this final exercise, you will master React debugging tools and implement comprehensive debugging strategies. You'll learn how to use React DevTools, performance profiling, and debugging techniques that are essential for production applications.

Estimated Time: 10 minutes