14 Lessons
Intermediate to Principal Frontend
★ 5.00
(4,200+ Engineers Enrolled)
React.js 18+ Architecture: Core Fiber to Enterprise Scale
Fiber Reconciler, Hooks Deep Dive, Concurrent Mode, Zustand, RTK & Micro-Frontends
⏱️ 48 Hours
📖 6 Modules
⚡ 20 Interactive Lessons
🏆 Free Verified Certificate
Complete Track Curriculum & Modules
Step-by-step interactive lessons with live browser compilers & coding assignments.
20 Lessons
1
3 Lessons
Module 1: React Core Architecture, JSX Internals & Component Lifecycle
01. What is React? Virtual DOM vs Real DOM, JSX Compilation & Component Purity
⏱️ 35 mins
•
⚡ Interactive Sandbox
02. React Element vs Component vs Fiber Node: Anatomy of a Render Cycle
⏱️ 35 mins
•
⚡ Interactive Sandbox
03. Controlled vs Uncontrolled Components, Form Architecture & Synthetic Event System
⏱️ 40 mins
•
⚡ Interactive Sandbox
2
4 Lessons
Module 2: Core & Advanced Hooks Architecture
04. useState & useReducer Deep Dive: Batching Mechanics (Automatic Batching in React 18)
⏱️ 40 mins
•
⚡ Interactive Sandbox
05. useEffect Lifecycle: Dependency Array Traps, Stale Closures & Cleanups
⏱️ 45 mins
•
⚡ Interactive Sandbox
06. useRef & useImperativeHandle: DOM Access, Instance Variables & ForwardRef
⏱️ 35 mins
•
⚡ Interactive Sandbox
07. useContext & Prop Drilling: Context Hell, Performance Traps & Selector Patterns
⏱️ 40 mins
•
⚡ Interactive Sandbox
3
4 Lessons
Module 3: Performance Optimization & Custom Hook Architecture
08. useMemo vs useCallback: When to Optimize and When NOT to Optimize
⏱️ 40 mins
•
⚡ Interactive Sandbox
09. React.memo, Custom Comparison Functions & Object Reference Equality
⏱️ 35 mins
•
⚡ Interactive Sandbox
10. Custom Hooks Architecture: Reusable Business Logic & Headless Component Design
⏱️ 45 mins
•
⚡ Interactive Sandbox
11. React DevTools Profiler: Flamegraphs, Ranked Charts & Re-render Auditing
⏱️ 35 mins
•
⚡ Interactive Sandbox
4
3 Lessons
Module 4: React Fiber Internals & Reconciliation Engine
12. React Fiber Architecture: Render Phase (Interruptible) vs Commit Phase (Synchronous)
⏱️ 50 mins
•
⚡ Interactive Sandbox
13. Reconciliation Algorithm & Diffing Rules (Keys, Component Types, Subtree Replacement)
⏱️ 45 mins
•
⚡ Interactive Sandbox
14. Double Buffering in Fiber (current tree vs workInProgress tree)
⏱️ 40 mins
•
⚡ Interactive Sandbox
5
4 Lessons
Module 5: Concurrent React 18 & Data Fetching Patterns
15. Concurrent Mode: Time Slicing, Priority Lanes & Scheduler Internals
⏱️ 50 mins
•
⚡ Interactive Sandbox
16. useTransition & useDeferredValue: Non-Blocking UI Transitions
⏱️ 40 mins
•
⚡ Interactive Sandbox
17. Suspense for Data Fetching, Error Boundaries & Streaming SSR Architecture
⏱️ 45 mins
•
⚡ Interactive Sandbox
18. Server State Caching: TanStack Query (React Query) Architecture & Optimistic Updates
⏱️ 45 mins
•
⚡ Interactive Sandbox
6
2 Lessons
Module 6: Enterprise State Management & Micro-Frontend Architecture
19. Global State Management: Zustand vs Redux Toolkit (RTK) vs Jotai Atomic State
⏱️ 45 mins
•
⚡ Interactive Sandbox
20. Micro-Frontends Architecture: Webpack 5 Module Federation & Independent Deployment
⏱️ 50 mins
•
⚡ Interactive Sandbox
Target Big Tech Roles
Google / Meta SDE-2
Senior Full-Stack Architect
Lead Backend Engineer
Skills You Will Master
- Production-Grade Clean Architecture
- V8 Internals, Memory Profiling & Leaks
- Time & Space Complexity Optimization
- Big Tech Behavioral & System Design Edge
Verified Digital Certificate
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⚡
Live Interactive Sandbox
Test real-time code without installing Node, Python or C++ locally. Instant output in browser!
Launch Code Sandbox (8-in-1)