React Counter App Tutorial | Beginner to Advanced Concepts(Props, React.memo, useCallback Explained)

Описание: 🚀 Learn React the smart way — from beginner to advanced in one project!
Build a React Counter App using Vite, and level it up step-by-step as we explore props, child-to-parent communication, React.memo, and useCallback for real-world optimization.

Whether you’re just starting with React or looking to refine your skills, this tutorial walks you through everything — from clean structure to high-performance component patterns.

🧩 What You’ll Learn
How to create a React app using Vite
Build a Counter App from scratch
Pass props from parent to child
Pass functions and data from child to parent
Implement Separation of Concerns (SOC)
Optimize React components using React.memo()
Optimize callback functions with useCallback()
Understand how React re-renders and performance works


🏷️ Timestamps / Chapters
00:00 - Intro
00:24 - Topics Covered
01:00 - Open Terminal & Create a Vite App
03:03 - Build a Simple Counter App
07:04 - Add Animation to the Counter
12:52 - Sample 1: Basic React Buttons Example
13:55 - Sample 2: Separation of Concerns (SOC)
17:35 - Passing Props from Parent to Child
18:10 - Passing Functions & Data from Child to Parent
20:40 - Difference Between Sample 1 & 2
22:13 - Sample 3: Optimization with React.memo & useCallback
26:25 - Using React.memo
27:35 - Using useCallback
30:15 - Sample 1, 2 & 3 Explained Together
30:36 - Summary & Key Takeaways

⚙️ Tech Stack
React.js
Vite
JavaScript (ES6+)
React Hooks (useState, useCallback)
Component Props Communication


🧠 Why Watch This Video
This video isn’t just about building a counter — it’s about learning how to think in React:
how data flows, how to organize components, and how to optimize rendering effectively.
By the end, you’ll have a solid understanding of React fundamentals and performance optimization that you can apply to any real-world project.

🔗 Resources
📂 GitHub Repository: https://github.com/gokul-MCA/react-co...
💬 Comment below with your questions — I’ll reply to each one!
👍 Like, Subscribe, and Share if this helped you grow as a React developer.

📈 Hashtags / SEO Tags
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