React Developer Course

Lesson 1 • Classes and Prototypes

Introduces class syntax, inheritance, and the prototype chain. Provides context for understanding class-based React components and lifecycle methods.

Lesson 2 • Promises and Async/Await

Explains asynchronous execution, promise chaining, and async/await syntax. Prepares students for data fetching inside React components.

Lesson 3 • ES6 Syntax Essentials

Covers let/const, arrow functions, template literals, and destructuring. These patterns appear throughout every React codebase.

Lesson 4 • Modules and Import/Export

Teaches named and default exports, module resolution, and bundler expectations. Directly enables component file organization in React projects.

Lesson 1 • Setting Up a React Project

Walks through project scaffolding with Vite and Create React App, folder structure, and dev server usage. Students leave with a running local environment.

Lesson 2 • What React Is and Why

Explains the virtual DOM, declarative UI, and React's place in the front-end ecosystem. Sets the conceptual foundation for all subsequent React work.

Lesson 3 • Rendering Lists and Conditionals

Covers key-based list rendering and conditional rendering patterns. These are the most common dynamic UI techniques in React.

Lesson 4 • JSX Syntax and Rules

Covers JSX transpilation, expression embedding, and JSX-specific rules like className and self-closing tags. Connects JSX to the JavaScript it compiles to.

Lesson 1 • Lifting State Up

Explains sharing state between sibling components by moving it to a common parent. Reinforces the unidirectional data-flow principle.

Lesson 2 • Immutable State Updates

Covers why React requires immutable updates and how to apply them to objects and arrays. Prevents common bugs caused by direct mutation.

Lesson 3 • Controlled Form Components

Teaches controlled inputs where React state drives form values. Enables reliable form validation and submission handling.

Lesson 4 • useState Hook Fundamentals

Explains state initialization, the setter function, and re-render triggers. useState is the primary tool for local interactivity in functional components.

Lesson 1 • Cleanup Functions

Teaches returning cleanup functions to cancel subscriptions and timers. Prevents memory leaks in long-lived components.

Lesson 2 • useEffect Hook Mechanics

Covers effect syntax, the dependency array, and execution timing. Students gain precise control over when effects run.

Lesson 3 • Class Component Lifecycle Overview

Maps componentDidMount, componentDidUpdate, and componentWillUnmount to useEffect equivalents. Prepares students to read legacy codebases.

Lesson 4 • Understanding Side Effects

Defines side effects in React and explains why they must be isolated from rendering. Motivates the need for useEffect.

Lesson 1 • useMemo and useCallback

Explains memoization of values and functions to prevent unnecessary recalculations and re-renders. Introduces performance optimization thinking.

Lesson 2 • useContext for Shared Data

Teaches creating and consuming context to avoid prop drilling. Connects to global state patterns introduced in the state management chapter.

Lesson 3 • useReducer for Complex State

Introduces the reducer pattern for managing multi-action state logic. Prepares students for Redux-style thinking within a single component.

Lesson 4 • useRef and the DOM

Covers useRef for DOM access and persisting mutable values across renders. Enables focus management, animations, and third-party library integration.

Lesson 1 • Navigation and Links

Teaches Link, NavLink, and programmatic navigation with useNavigate. Enables both declarative and imperative navigation patterns.

Lesson 2 • React Router Setup and Basics

Covers BrowserRouter, Routes, and Route components to define an app's navigation tree. Establishes the declarative routing model.

Lesson 3 • Nested Routes and Layouts

Explains nested Route trees and the Outlet component for shared layouts. Reduces layout duplication across related pages.

Lesson 4 • Protected Routes and Auth Guards

Implements route guards that redirect unauthenticated users. Applies context and routing knowledge together in a realistic pattern.

Lesson 1 • Redux Toolkit Fundamentals

Introduces Redux Toolkit's store, slices, and reducers as the modern Redux approach. Replaces boilerplate-heavy classic Redux patterns.

Lesson 2 • Choosing the Right State Solution

Compares local state, Context, Redux, and Zustand by complexity and use case. Equips students to make architectural decisions on real projects.

Lesson 3 • Context API at Scale

Extends useContext patterns to app-wide state with multiple contexts and performance optimizations. Covers when Context is sufficient.

Lesson 4 • Reading and Writing Redux State

Covers useSelector and useDispatch hooks for component-level store interaction. Enables components to read slices and dispatch actions.

Lesson 1 • Building and Deploying React Apps

Walks through production builds, environment configuration, and deployment to static hosting platforms. Completes the full development lifecycle.

Lesson 2 • Performance Optimization Techniques

Covers React.memo, lazy loading, and code splitting to reduce bundle size and render cost. Directly improves user-perceived performance.

Lesson 3 • Testing React Components

Introduces React Testing Library and Jest for unit and integration tests. Covers rendering, querying, and user interaction simulation.

Lesson 4 • Error Boundaries and Resilience

Teaches class-based error boundaries and fallback UIs to prevent full app crashes. Adds production resilience to component trees.