Learn. Build. Master.

QUICK START:HTML CSS JavaScript TypeScript Python SQL React Next.js Node.js DSA System Design DevOps Cybersecurity AI / ML

IntermediateFrontend

~26 Hours 11 Lessons100% Free

React Component Engineering & State Architecture

Build reactive, high-performance UI components with modern hooks, context, and declarative state.

Master React: JSX, functional components, props, hooks (useState, useEffect, useMemo, useCallback, useRef), custom hooks, Context API, state management, and component lifecycles.

What You Will Learn

Declarative UI & JSX Syntax Rules
React Hooks (useState, useEffect, useMemo, useCallback, useRef)
Custom Hooks & Component Logic Extraction
Context API & Global State Architecture
Virtual DOM & Reconciliation Performance Optimization

Prerequisites & Environment

JavaScript ES6+
HTML & CSS

Complete Course Curriculum (11 Modules)

11 In-Depth Lessons

Module 01

Module 1: React Foundations & Virtual DOM

1 Lessons

Declarative programming, component models, and the Virtual DOM reconciliation engine.

1.1React Introduction, Components & Virtual DOM

Module 02

Module 2: JSX Syntax & Element Trees

1 Lessons

JSX expressions, fragment containers (<>...</>), conditional rendering, and list mapping with keys.

2.1JSX Rules, Keys & Conditional Rendering

Module 03

Module 3: Components, Props & Composition

1 Lessons

Props destructuring, default props, children prop, and component composition patterns.

3.1Component Props & Composition (children)

Module 04

Module 4: Reactive State & useState Hook

1 Lessons

Managing local component state, updater functions, and immutable object/array updates.

4.1useState & Functional State Updaters

Module 05

Module 5: Component Lifecycle & useEffect Hook

1 Lessons

Side effects, dependency array mechanics, cleanup functions, and data fetching.

5.1useEffect, Dependencies & Cleanup Handlers

Module 06

Module 6: Performance Optimization (useMemo, useCallback, memo)

1 Lessons

Preventing unnecessary re-renders with React.memo, useMemo, and useCallback.

6.1Memoization with useMemo, useCallback & React.memo

Module 07

Module 7: Refs & DOM Manipulation (useRef)

1 Lessons

Holding mutable values without re-rendering and referencing DOM elements.

7.1useRef & Imperative DOM Access

Module 08

Module 8: Global State Management & Context API

1 Lessons

Sharing global state across deeply nested components without prop drilling.

8.1Context API (createContext & useContext)

Module 09

Module 9: Custom Hooks & Logic Reusability

1 Lessons

Extracting stateful logic into reusable use* functions across multiple components.

9.1Building Custom React Hooks (useLocalStorage, useFetch)

Module 10

Module 10: Forms & Controlled vs Uncontrolled Inputs

1 Lessons

Controlled components, form submission, React Hook Form, and validation schemas.

10.1Controlled vs Uncontrolled Forms & Validation

Module 11

Module 11: Error Boundaries & React 19 Actions

1 Lessons

Component error boundaries, useActionState, useOptimistic, and transition states.

11.1Error Boundaries & React 19 Actions (useActionState)