React Deep Dive Learning Notes | Notion

This workspace is focused on truly understanding React as a library and framework — not just building features.

Use these notes to capture concepts, reasoning, and trade‑offs so I can internalize when, why, and how to use React patterns and APIs.

🎯 Learning Goals

Grasp React’s core philosophy, reconciliation, and rendering lifecycle
Master hooks (built‑in and custom) with clarity on use cases and performance
Understand advanced patterns: context, render props, compound components, and state management
Know best practices, trade‑offs, and common pitfalls in real‑world scenarios
Be able to explain React internals and architecture in interviews

📝 Daily Study Log

Topic 1 React Doc

Topic 2 important topics note

Topic 3 Questions

React Query, fetch data

Imperative vs Declarative

🗓️ High‑Level Roadmap

Week	Topic	Focus Outcome	Resources	Status
1	React Core Concepts (JSX, Virtual DOM, Rendering)	Explain reconciliation and diffing	React Docs — Main Concepts	Planned
2	Components & Props	Distinguish function vs class; pure vs memo		Planned
3	State & Lifecycle	Detail setState batching and lifecycle order	React Docs — State & Lifecycle	Planned
4	Hooks Deep Dive	Explain useState, useEffect internals & rules	React Docs — Hooks API	Planned
5	Custom Hooks & Patterns	Build reusable logic; understand closures	Blog posts & code samples	Planned
6	Context & State Management	When to use context vs external store	React Docs & Redux docs	Planned
7	Performance Optimization	Profiling, memo, useCallback, lazy loading	React Docs — Performance	Planned
8	Advanced Patterns	Render props, compound components, portals	React Patterns	Planned
9	Testing & Debugging	React Testing Library internals; React DevTools	Testing Library Docs	Planned
10	React Internals	Fiber architecture, scheduler, concurrent mode	React Docs & source code	Planned