Refs & Performance Optimization in React – useRef, useMemo, useCallback & React.memo | JDCodebase
Refs & Performance Optimization in React – Web Development Series – JDCodebase
In this video, we dive deep into Refs and Performance Optimization in React. This topic is very important when building real-world React applications, especially when your app starts growing in size.
We understand how React re-renders work and how to prevent unnecessary re-renders using useRef, useMemo, useCallback, and React.memo.
This video is explained in a very beginner-friendly way with practical examples inside VS Code.
What You Will Learn:
• What is useRef in React
• Difference between useRef and useState
• Accessing DOM elements using useRef
• What is performance optimization in React
• Why unnecessary re-renders happen
• What is useMemo and when to use it
• What is useCallback and why function recreation matters
• What is React.memo and how it prevents re-renders
• Difference between useMemo, useCallback, and React.memo
• Best practices for optimization
We also build practical examples to understand:
• Slow function recalculation problem
• Preventing unnecessary calculations using useMemo
• Preventing child re-renders using useCallback and React.memo
Resources:
Complete PPT: https://1drv.ms/p/c/d9a1d5f2dacf7aea/...
Full React Playlist: • React Full Course for Beginners – Learn Re...
Web Devlopment: • Web Development Series – HTML to MERN Full...
About This Series:
This Web Development Series covers HTML, CSS, JavaScript, React, Tailwind CSS, and full MERN stack development in a structured beginner-to-advanced roadmap.
If you are learning React and want strong fundamentals, this series will help you step by step.
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