🚀 Day 7/100 – React Native Mastery 🔄 Today’s Topic: State in React Native State helps us manage changing data and update UI dynamically. In today’s PDF: ✔ What is State ✔ useState Hook ✔ Counter app example 📥 Get all PDFs & resources: https://t.me/jobmint https://lnkd.in/gUxk3mqi #ReactNative #100DaysOfCode #JavaScript #MobileDevelopment #Frontend

Most React developers are writing useEffect wrong. Not because they don't understand it. Because they think they do. After 3 years of building React apps here's what I've learned the hard way: ❌ You don't need useEffect to derive state. ❌ You don't need useEffect to sync two pieces of state. ❌ You definitely don't need useEffect to handle a user event. useEffect is for syncing React with something OUTSIDE React. That's it. That's the rule. When I first started, I put everything in useEffect. Fetch calls. Transformations. Even click handler logic. The bugs were subtle. The re-renders were endless. And the codebase became a nightmare to debug. The fix? Think before you reach for it. Ask yourself: "Am I escaping React, or am I fighting it?" If you're fighting it — useMemo, useCallback, or plain derived variables will serve you better. React is not hard. But undisciplined useEffect usage will make it feel that way. Drop a 🔁 if you've fallen into this trap before. And follow for more no-fluff React breakdowns 👇 #ReactJS #FrontendDevelopment #JavaScript #WebDev #ReactHooks #SoftwareEngineering

Most Developers Misuse React JS… Here’s How to Fix It At the beginning, everything feels smooth. But as your app grows, things start breaking, slowing down, and becoming hard to maintain. Here are some common mistakes I’ve seen in real projects 👇 🔴 Mistakes to Avoid: - Prop drilling across multiple components - No proper folder structure - Overusing useState everywhere - Writing business logic inside UI components - Ignoring performance optimization 🟢 Best Practices to Follow: - Use Context API or Redux for state management - Maintain a clean folder structure (components / hooks / services / utils) - Create reusable custom hooks - Keep components small and focused - Optimize with React.memo, useMemo, useCallback 💡 Pro Tip: React is powerful, but without proper structure, it quickly becomes a messy UI jungle. 💬 Let’s discuss: What’s the biggest React mistake you’ve faced in your project? #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #CleanCode #ReactHooks #Redux #SoftwareDevelopment

Many developers get confused between React and Next.js — here’s a simple way to think about it: • React is just the UI layer It’s a library for building user interfaces. You handle routing, structure, and setup yourself. • Next.js is a complete framework It’s built on top of React and gives you everything out of the box — routing, SSR, SEO, and better performance. • Think in terms of use case React gives you freedom. Next.js gives you structure and production-ready speed. My simple rule: – Small apps → React – Production apps → Next.js Choose based on what you're building — not just what’s trending. What do you prefer — React or Next.js? 👇 #SoftwareEngineering #WebDevelopment #ReactJS #NextJS #FrontendDevelopment #JavaScript #FullStackDeveloper #Programming #TechCareers #BuildInPublic

🚀 Just discovered a powerful new way to build React apps faster If you’re working with React, you should definitely check out my cli👇 🔗 https://lnkd.in/gaN__8qP 💡 react-client is a next-generation CLI + runtime designed to improve how we build React apps focusing on: ⚡ Instant feedback loops ⚡ Faster development iteration ⚡ Clean developer experience Instead of spending time on heavy configs and slow rebuilds, this approach helps you stay in flow and ship faster. In a world where frontend velocity matters, tools like this can redefine developer productivity. 👨💻 Curious to hear: Would you try this over Vite / Next.js? JavaScript Mastery #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #DevTools #React #OpenSource #DeveloperExperience

To every developer 𝙘𝙤𝙣𝙛𝙪𝙨𝙚𝙙 between 𝗡𝗲𝘅𝘁.𝗷𝘀 and 𝗥𝗲𝗮𝗰𝘁, I have a simple way to think about it: • 𝗥𝗲𝗮𝗰𝘁 𝗶𝘀 𝗷𝘂𝘀𝘁 𝘁𝗵𝗲 𝗨𝗜 𝗹𝗮𝘆𝗲𝗿: It’s a library for building interfaces. You handle 𝙧𝙤𝙪𝙩𝙞𝙣𝙜, 𝙨𝙩𝙧𝙪𝙘𝙩𝙪𝙧𝙚, and 𝙨𝙚𝙩𝙪𝙥 𝙮𝙤𝙪𝙧𝙨𝙚𝙡𝙛. • 𝗡𝗲𝘅𝘁.𝗷𝘀 𝗶𝘀 𝗮 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗳𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸: It builds on React and gives you everything out of the box. 𝙍𝙤𝙪𝙩𝙞𝙣𝙜, 𝙎𝙎𝙍, 𝙎𝙀𝙊, and 𝙗𝙚𝙩𝙩𝙚𝙧 𝙥𝙚𝙧𝙛𝙤𝙧𝙢𝙖𝙣𝙘𝙚. • 𝗧𝗵𝗶𝗻𝗸 𝗶𝗻 𝘁𝗲𝗿𝗺𝘀 𝗼𝗳 𝘂𝘀𝗲 𝗰𝗮𝘀𝗲: React gives you 𝗳𝗿𝗲𝗲𝗱𝗼𝗺. Next.js gives you 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 and 𝘀𝗽𝗲𝗲𝗱 in production. That’s the real difference. My simple rule: – 𝗦𝗺𝗮𝗹𝗹 𝗮𝗽𝗽𝘀 → 𝙍𝙚𝙖𝙘𝙩 – 𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗮𝗽𝗽𝘀 → 𝙉𝙚𝙭𝙩.𝙟𝙨 Choose based on what you’re building, not just what’s popular. 𝙒𝙝𝙖𝙩 𝙙𝙤 𝙮𝙤𝙪 𝙪𝙨𝙚 — 𝙍𝙚𝙖𝙘𝙩 𝙤𝙧 𝙉𝙚𝙭𝙩.𝙟𝙨? 👇 #SoftwareEngineering #WebDevelopment #ReactJS #NextJS #FrontendDevelopment #JavaScript #FullStackDeveloper #Programming #TechCareers #BuildInPublic #fblifestyle #TechTips #code231

☀️ Good Morning, Developers! Hot take: Most React developers still don’t understand why their apps feel slow. They blame React. They blame Next.js. They blame JavaScript. But the real issue is often this: Unnecessary Re-Renders. 👇 Every state update can trigger component re-renders. When props keep changing references, functions are recreated, or global state is poorly managed — your UI starts doing extra work on every interaction. That means: ◆ Slower pages ◆ Laggy forms ◆ Poor mobile performance ◆ Bad user experience ◆ Lower conversion rates 💡 Deep Insight: Performance in React is less about “fast code” and more about render control. Developers who understand: ◆ memo() ◆ useCallback() ◆ useMemo() ◆ State colocation ◆ Component boundaries ◆ Server Components (Next.js) …build apps that feel premium. The best React developer is not the one who writes more components. It’s the one who prevents unnecessary renders. Think deeper today. 🚀 #ReactJS #NextJS #FrontendDevelopment #JavaScript #WebPerformance #SoftwareEngineering #Programming #WebDevelopment #Tech #Coding

Your React app is slow. Here's why. 🐢 Most devs jump straight to optimization tools. But 90% of the time, the fix is simpler: 🔴 Fetching data in every component independently → Lift it up or use a global state solution 🔴 Importing entire libraries for one function → `import _ from 'lodash'` hurts. Use named imports. 🔴 No lazy loading on heavy routes → React.lazy() exists. Use it. 🔴 Images with no defined size → Layout shifts kill perceived performance 🔴 Everything in one giant component → Split it. React re-renders what changed, not what didn't. Performance isn't magic. It's just not making avoidable mistakes. Save this for your next code review. 🔖 #ReactJS #Frontend #WebPerformance #JavaScript #WebDev

Stop overusing useEffect, Most of the time... you don't need it. And when you do (data fetching), tools like React Query already do it better. Less effects = cleaner React apps. Are you overusing useEffect? Read more: https://lnkd.in/ddMR-8DH⁠ #React #WebDev #Frontend #JavaScript #BestPractices

𝗥𝗲𝗮𝗰𝘁 𝗶𝘀 𝘀𝘁𝗶𝗹𝗹 𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝘁𝗼𝗼𝗹𝘀 𝗳𝗼𝗿 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗺𝗼𝗱𝗲𝗿𝗻 𝘄𝗲𝗯 𝗮𝗽𝗽𝘀. Not because it’s trendy. Because it helps developers create: → reusable components → scalable interfaces → fast user experiences → structured codebases → dynamic applications But React alone isn’t the edge anymore. The edge comes from knowing how to use React with: • performance best practices • modern JavaScript patterns • AI-powered features • SEO-aware architecture • user behavior insights Tools matter. But how you think while using them matters more. That’s what separates developers who build pages… from developers who build products. What do you think is the most underrated React skill? #ReactJS #FrontendDevelopment #JavaScript #WebApps #SoftwareDeveloper #TechLeadership