International JavaScript Conference’s Post

🚀 Back in the Flow: Mastering Performance in React After a brief break, I’m back to what I love—building and solving logic. Today, I focused on optimizing search functionality using Debouncing in React. When building a search bar, hitting an API on every single keystroke is expensive and inefficient. To solve this, I implemented a custom debouncing logic inside a useEffect hook. 💡 Key Highlights of this Implementation: Controlled Input: Using useState to manage the search query. Debounce Logic: I used setTimeout to delay the API call by 700ms. This ensures the request only fires after the user has stopped typing. Memory Management: A crucial cleanup function (clearTimeout) to prevent memory leaks and race conditions if the user continues typing. Async/Await: Handling API fetching cleanly within the hook. Building these kinds of "logic-heavy" small components is what sharpens the mind for large-scale applications. It's not just about making it work; it's about making it efficient. GitHub repo : https://lnkd.in/dBw2y6m4 Consistency is the only currency in tech. Onwards and upwards! 📈 #ReactJS #WebDevelopment #MERNStack #FrontendEngineering #CodingJourney #JavaScript #Debouncing #CleanCode

Day 2 of #111DaysOfLearningForChange – Code for Change Today I explored the basics of React and how it helps in building modern user interfaces using React. ✨Core concepts in React 🔹 Components – The building blocks of React.They are reusable and can be created using functions. 🔹 JSX – Allows writing HTML-like syntax inside JavaScript, making code more readable. 🔹 Props – Used to pass data from parent to child components (read-only). 🔹 State – Stores dynamic data inside a component. When state changes, the UI updates automatically. 🔹 Events – React uses camelCase for events like onClick, onChange. 🔹 Hooks – Functions like useState and useEffect that let us use powerful React features in functional components. 🔹 Virtual DOM – React updates only the changed parts of the UI, making applications faster and efficient ⚡ #111DaysOfLearningForChange #CodeForChange #Day2Of111LearningReactJS

Day 8 — Today my frontend talked to the outside world for the first time. Fetched real data from a public API. Rendered it on screen. It's genuinely exciting every time. async/await cleaned up my fetch code significantly compared to chaining .then() everywhere. But I also finally understood why promises exist — it's not just about syntax. The part most tutorials skip: error handling. What happens when the API is down? What does your UI show? I spent extra time making sure loading and error states were actually handled, not just happy path. Also tried Axios for the first time. The automatic JSON parsing and nicer error messages are worth it for bigger projects. Built a small app that shows GitHub user info by username. Feels like a real tool now. How do you handle API errors in your projects? #javascript #webdev #reactjs #frontenddeveloper

💻 5 React mistakes I stopped making (and it improved my code a lot) When I started with React, I used to write code that worked… But not code that was clean, scalable, and maintainable. Here are 5 mistakes I fixed: ❌ 1. Writing everything in one component 👉 Now I break UI into small reusable components ❌ 2. Ignoring proper state management 👉 Learned when to use useState vs useEffect vs lifting state ❌ 3. Not handling performance 👉 Started using memoization (useMemo, useCallback) ❌ 4. Poor folder structure 👉 Now I follow a clean project structure ❌ 5. Debugging randomly 👉 Now I debug step-by-step with proper logs Small changes… but huge difference in code quality 🚀 Still learning every day 👨💻 Which mistake did you make the most? 😅 #ReactJS #FrontendDevelopment #JavaScript #CleanCode #WebDevelopment #SoftwareEngineer

Ever felt overwhelmed by state management in React? I did, until I discovered the magic of React Context and hooks. They simplified my applications and improved maintainability. Here’s what worked for me: 1. Use React Context for simple state needs. 2. Opt for Redux or Zustand for complex states. 3. Always treat state as immutable. How do you handle state management in your projects? #JavaScript #FrontendDevelopment

💡 Today I learned something powerful about Redux Toolkit. Earlier, I used to think Redux = complex. But Redux Toolkit changed everything. Here’s why 👇 ✅ Simplified store setup ✅ No need to write boilerplate reducers ✅ Built-in Immer (immutable updates made easy) ✅ Cleaner and scalable state management 🔥 Biggest realization: You don’t need complex logic to manage complex state. 📌 If you’re still using traditional Redux, try Redux Toolkit — it’s a game changer. What’s your experience with Redux vs Context API? #Redux #ReactJS #FrontendDevelopment #JavaScript

I spent 3 hours fixing a React bug yesterday. The issue wasn’t complex. My approach was. Earlier, whenever something broke in my app, I used to: ❌ randomly change code ❌ refresh again and again ❌ search Stack Overflow immediately Now I follow a simple process: ✅ check component re-renders ✅ inspect props and state flow ✅ verify API response structure ✅ use console logs step-by-step And honestly, debugging became much faster. One thing I’m learning as a developer: Writing code is important. But understanding why code breaks is what actually improves your skills. Curious to know — what’s the toughest bug you fixed recently? #ReactJS #WebDevelopment #JavaScript #FrontendDevelopment #CodingJourney #FullStackDeveloper #MERN

🚀 Redux Toolkit with Vite I recently built a small project using Redux Toolkit along with Vite, focusing on efficient state management and fast development experience. 🔹 Implemented centralized state management using Redux Toolkit 🔹 Utilized slices, actions, and reducers for clean and scalable code 🔹 Integrated asynchronous operations using Redux Thunk 🔹 Leveraged Vite for lightning-fast development and optimized builds 🔹 Designed a responsive and user-friendly UI This project helped me strengthen my understanding of modern React development, especially in handling complex state in a structured way. 📌 Key Takeaway: Combining Redux Toolkit with Vite significantly improves both developer productivity and application performance. Would love to hear your feedback! 😊 #ReactJS #ReduxToolkit #Vite #FrontendDevelopment #WebDevelopment #JavaScript #LearningByDoing

Introducing ReactGraph — an open source tool that visualizes your entire React/Next.js codebase as an interactive graph. Pages → Components → Hooks → APIs All connected. All clickable. Props and TypeScript types are shown on every node. It also includes: ⚡ Impact Analysis — see exactly what breaks before you change anything 🔍 Health Check — catch TypeScript errors before your production build 🔄 Circular Dependency Detection — spot infinite render loop risks instantly ⚠️ Prop Drilling Detection — find props passed too deep across components 🟡 Move to Shared — automatically detects components used across multiple pages that should be in your shared folder 🗑️ Unused Component Detection — find dead code you can safely delete Available as a VS Code extension and an npm package. Completely free and open source. 🔗 VS Code Extension → https://lnkd.in/gvXmhc5q 📦 npm Package → https://lnkd.in/g2tyPB47 ⭐ GitHub (open source) → https://lnkd.in/gnib-rAQ Prefer the npm package? Install it directly and run it on any React or Next.js project in seconds. Would love feedback from fellow developers. What would make this more useful for your workflow? #ReactJS #NextJS #OpenSource #DeveloperTools #TypeScript #WebDevelopment #VSCode

🧠 The bug wasn’t in my code… It was in my assumption. I spent 2 hours debugging a UI issue where a list wasn’t updating correctly. The logic looked fine. The API response was correct. State was updating. So what was wrong? 👇 👉 I was using the array index as the key in a dynamic list. At first, everything worked. But the moment I added/removes items… things broke in weird ways. 💥 Items re-rendered incorrectly 💥 State got mixed up between components 💥 UI started behaving unpredictably 💡 Lesson learned: Keys in React are not just for removing warnings. They are how React tracks identity. Using index as a key = telling React: "Yeah, these items might change… but pretend they didn’t." 🛠️ Better approach: Always use a unique and stable id from your data. 🧠 Simple way to think: React uses keys like names in a classroom. If everyone has the same name (or changing names), things get chaotic. 🔥 Takeaways: • Avoid index as key (especially in dynamic lists) • Stable identity = predictable UI • Many “random bugs” come from small decisions like this 💬 Have you ever faced a weird UI bug that turned out to be something small? #ReactJS #FrontendDevelopment #JavaScript #WebDev #CodingMistakes