Optimize React Performance with useMemo

💻 Revisiting React Fundamentals – Understanding State Today I revisited one of the core concepts of React: State management using the useState hook. To reinforce the concept, I built a small Counter component that performs different operations such as: ✔️ Increment ✔️ Decrement ✔️ Reset ✔️ Multiply by 2 ✔️ Square of a number This simple exercise helped me understand how state changes trigger UI updates in React and how event handlers like onClick interact with state. Sometimes revisiting basic concepts helps strengthen the foundation before building more complex applications. I’ve attached a short screen recording and code snippets showing how the counter works. Always learning, always improving. 🚀 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningInPublic #ReactDeveloper

Lately, I've been diving deeper into React to understand how it actually works under the hood. Not just building components, but exploring things like: • How React handles re-renders • State management patterns • Performance optimizations • The internal logic behind hooks • How React's rendering process works It’s easy to use React, but truly understanding why things work the way they do is where real learning begins. My goal right now is simple: Go beyond tutorials and build a stronger foundation. 🚀 #reactjs #webdevelopment #javascript #frontend #developerjourney

🛠️ "Hooks revolutionized React as no other feature did!" 🎉 Remember those days of juggling lifecycle methods and state management? Hooks came and swept it all away like magic! With just a few lines of code, you could address complex state logic. It's like giving React a fresh pair of sneakers. 🏃♂️💡 Hooks made React more accessible to developers, lowered the entry bar, and allowed seasoned pros to simplify massive codebases. This isn't just about cleaner code - it's about time saved ⏰, fewer bugs 🐛, and a happier dev life.🎈 What was your "aha" moment with Hooks? Share your experience! 👇 #react #javascript #webdevelopment #frontend

Today I learned about Components in React. React is built around the concept of components. Instead of writing one large HTML file, we break the UI into smaller, reusable pieces. For example: A Navbar is one component. A Button is another. A Card can be reused multiple times. This makes applications easier to manage and scale. That’s the real power of React. Up Next: Props 👀 React Series – Day 3 🚀 #ReactJS #LearningInPublic #WebDevelopment #FrontendDeveloper

"Mastering React starts with its core building blocks: Components, Props, State, and Hooks (especially useState). Components are the reusable pieces of your UI, passing data down via props (read-only) while managing dynamic behavior through state. With the introduction of Hooks in React 16.8, useState revolutionized how we handle local state in functional components — no more class boilerplate! A quick reminder: Props → Data flow from parent to child (immutable from child's perspective) useState → [value, setValue] = useState(initialValue) — triggers re-renders on updates #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #ReactHooks"

🚀 React Re-renders Are About References In React, components don’t just re-render when state changes. They also re-render when prop references change. Example: JavaScript Copy code const user = { name: "Zeeshan" }; Every render creates a new object reference, so React treats it as a new prop. Even if the data is the same, the reference is different. ✅ Fix: Stabilize references using useMemo or useCallback. Understanding this small detail can prevent many unnecessary re-renders. #ReactJS #NextJS #FrontendDevelopment #WebPerformance

Day 7/15 – Mastering React Custom Hook Pattern 🚀 Today I focused on the Custom Hook Pattern in React. Custom Hooks allow us to extract and reuse stateful logic across multiple components while keeping components clean and focused on UI. Instead of repeating the same logic (like API calls, form handling, or event listeners), we can move that logic into a custom hook and reuse it anywhere in the application. Key takeaway: Custom Hooks improve code reusability, readability, and separation of concerns, which is essential for building scalable React applications. Learning to design good hooks is a big step toward writing clean, production-ready React code. #React #CustomHooks #FrontendDevelopment #JavaScript #ReactPatterns #LearningInPublic

💡 Small Lesson I Learned While Building React Applications While working on projects, I realized something important: Always try to handle things on the frontend before making unnecessary API calls. For example, if data is already fetched from the API, you can implement features like searching, filtering, and sorting directly on the frontend using JavaScript instead of calling the API again and again. Benefits: ✅ Faster user experience ✅ Reduced server load ✅ Cleaner architecture Sometimes the best optimization is simply using the data you already have. What’s a small development lesson you learned recently? 👇 #webdevelopment #reactjs #javascript #frontenddevelopment #learninginpublic

21 Days 21 web dev procject Day 6 of Building in Public 🚀 live demo : https://lnkd.in/gYuw98q9 Today I focused on improving the UI and fixing issues in my React project. Worked on component structure, responsive layout, and debugging some annoying build errors. Things I learned today: • Proper component separation makes debugging easier • Small UI fixes can dramatically improve user experience • Build errors usually come from simple mistakes (wrong imports, wrong paths) Slow progress is still progress. #buildinpublic #webdevelopment #reactjs #javascript #100daysofcode