Boost React App Performance with These 5 Essential Tips

Redux vs React Query still confused? Ask yourself these 3 questions and the answer becomes obvious. The simple rule that clears everything up: → API data = React Query → App logic = Redux They solve different problems. Stop mixing them. What is running in your app right now? Drop it in the comments 👇 Follow for more practical dev tips and frontend insights 🚀 #ReactQuery #Redux #ReactJS #WebDevelopment #JavaScript #FrontendDevelopment #Programming #DevTips #LinkedInTech #CareerGrowth

😳 One wrong choice in React Native can freeze your app with 100+ items. → Most beginners use ScrollView everywhere. That's the mistake. → ScrollView renders all children at once — every item loads into memory → FlatList only renders what's visible — the rest is recycled → Use ScrollView for settings, forms, or anything under ~20 items → Use FlatList for feeds, chats, product lists — any dynamic data → Never nest FlatList inside ScrollView — it kills virtualization completely Always add keyExtractor + wrap renderItem in useCallback for best performance Which one were you using everywhere before knowing this? 👇 #reactnative #javascript #mobiledev #expo #programming #frontend #reactnativedeveloper #100daysofcode #learntocode #appdevelopment

Most React developers ignore this hook… until their app becomes a mess. I did the same. At first, everything was simple. A few states here and there → useState was enough. But then… More features → more states More logic → more confusion And suddenly, I had no idea what was updating what. That’s when I discovered useReducer. And honestly, it changed how I think about state. Instead of randomly updating values, you start thinking in actions. 👉 “What happened?” 👉 “How should state change?” That’s it. No more messy logic scattered everywhere. Everything becomes predictable. 💡 What I learned: • When state logic starts getting complex → stop using only useState • When multiple actions control the same state → think useReducer • When updates depend on previous state → useReducer is 🔥 The best part? You stop writing confusing code and start writing structured logic If you're learning React seriously, don’t skip this hook like I did. It’s not “advanced”… it’s just misunderstood. Saving this might save you hours later 🚀 #reactjs #javascript #webdevelopment #frontenddeveloper #mernstack #coding #developers #programming #reacthooks #softwareengineer #devcommunity #buildinpublic #learnincode #techcareer

𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭 𝐑𝐞𝐚𝐥𝐢𝐭𝐲 𝐢𝐧 𝐎𝐧𝐞 𝐏𝐢𝐜𝐭𝐮𝐫𝐞 😂 Your app might be just a few KB… but node_modules be like 12GB 😅 That’s the beauty (and pain) of modern development — powerful tools come with heavy dependencies. 👉 Optimize where you can, but embrace the ecosystem. #JavaScript #NodeJS #WebDevelopment #CodingLife #Developers #TechHumor #Frontend #Backend #Programming #DevLife

Today I learned something simple… but powerful. In React & Vue apps, anything you put inside the public folder gets copied as-is into the final build (dist or build folder). No bundling. No optimization. No magic. At first, I thought everything goes through the build pipeline… but that’s not true 👇 - Files in src → processed, optimized, bundled - Files in public → directly copied #React #Vue #WebDevelopment #JavaScript #Frontend #TIL #Programming

⚛️ Struggling with unexpected bugs in React? Chances are… it’s your useEffect 👀 useEffect is powerful — but only when used correctly. Here’s what every React developer should know: 🔹 Runs After Render It executes after every render (unless controlled properly). 🔹 Dependency Array Matters Missing dependencies = bugs Too many dependencies = unnecessary re-renders 🔹 Perfect for Side Effects API calls 🌐, event listeners 🎧, timers ⏱️ — all handled here. 🔹 Cleanup is Important Avoid memory leaks by returning a cleanup function. 🔹 Don’t Overuse It Not everything needs useEffect. Keep logic simple. 👉 Mastering useEffect = cleaner & bug-free apps. 🚀 Keep learning. Keep building. . . . . . . #Reactjs #Frontenddevelopment #Javascript #Webdevelopment #Coding #Developers #Programming #Softwaredevelopment #Reacthooks #Learning #Tech

Handling Forms in React Many React apps become complex when handling forms. Here are some strategies that consistently work in production 👇 ⚡ 1. Use Controlled Components Keep form inputs synced with state. ⚡ 2. Use Form Libraries React Hook Form or Formik simplify forms. ⚡ 3. Add Validation Early Prevent invalid data submission. ⚡ 4. Manage Error Messages Clearly Users should understand what went wrong. ⚡ 5. Optimize Form Rendering Avoid unnecessary rerenders. #React #programming #webdevelopment #reactjs #coding #dailyUpdate #Developer 💻

🚨 You’re slowing down your Node.js app without realizing it… Most developers write async/await like this 👇 Clean? Yes. Fast? ❌ 👉 Problem: Each await blocks the next one → Total time = sum of all delays ⏳ 👉 Fix: Run independent tasks in parallel ⚡ ⚡ Result: • Faster APIs • Better user experience • Improved performance 🔥 Golden Rule: If tasks don’t depend on each other → run them together. 📌 Save this — 90% of developers ignore it. 💬 Be honest… are you still writing sequential awaits? --- #NodeJS #JavaScript #BackendDevelopment #AsyncAwait #PerformanceOptimization #WebDevelopment #SoftwareEngineering #Programming #Developers #Coding #TechTips #LearnToCode #100DaysOfCode #CodeNewbie #DevCommunity

A small realization after working with Laravel + Vue.js 💻 Writing code is not the hardest part of development. The real challenge is: • Understanding existing code • Fixing unexpected bugs • Making features work without breaking other parts Anyone can write code. But understanding a real production codebase… That’s where developers grow. 🚀 What do you think is harder? 1️⃣ Writing new code 2️⃣ Understanding existing code #WebDevelopment #Programming #Laravel #VueJS #DeveloperLife

💡 Handling Click Events in React In React, user interactions like button clicks are handled using onClick events. 👉 onClick triggers a function 👉 Function updates state or performs an action 👉 UI updates automatically 📌 Common Uses: • Button actions • Form submissions • Toggle features • Navigation triggers • Dynamic UI updates ⚡ React uses camelCase event naming Example → onClick (not onclick) Master event handling to build interactive React apps. Follow TFSC for practical frontend learning. #reactjs #reactevents #onclick #frontenddeveloper #javascript #webdevelopment #coding #learnreact #programming #tfsc