Stop searching for the best language and start mastering JavaScript. One language, endless possibilities. Whether you want to build a mobile app, a 3d game, or a complex server-side system—JavaScript has a library or framework for it. As the image shows, JS isn't just for websites anymore; it’s for everything. Which JS combination are you currently mastering? Let me know in the comments! #JavaScript #WebDevelopment #Coding #Programming #ReactJS #NodeJS #TechTrends #SoftwareEngineer #FullStackDeveloper #Frontend #Backend #CodeNewbie

#Question: After clicking button multiple times, what will be printed in console? import React, { useState, useEffect } from "react"; export default function App() { const [count, setCount] = useState(0); useEffect(() => { setInterval(() => { console.log(count); }, 1000); }, []); return ( <button onClick={() => setCount(count + 1)}> Count: {count} </button> ); } #Comment #Answer ? #ReactJS #JavaScript #FrontendDeveloper #WebDevelopment #FAANG #CodingInterview #ReactHooks #SoftwareEngineer #TechInterview

Javascript concept: Callbacks Callbacks are simple at first: function greet(fn) { fn(); } But in real-world apps: doA(() => { doB(() => { doC(() => {}); }); }); 😵 This becomes hard to read and maintain. 💡 This problem is called callback hell 🚀 Solution: → Promises → Async/Await #JavaScript #WebDevelopment #Frontend #Coding #LearnToCode

App was losing users before they even saw the product. Not because of bad design. Not because of bad marketing. Because the page took 6 seconds to load. I spent 2 weeks debugging, fixing, and measuring. Here's exactly what I found — and how I fixed it. 👇 (swipe through the carousel) What's the biggest performance issue you've faced? Drop it below 👇 #WebPerformance #ReactJS #NextJS #FrontendEngineer #ProductThinking #JavaScript #WebDev

useCallback doesn't actually make your app faster I see devs wrap every callback in useCallback thinking it's a performance  optimization. But here's the truth: The trade-off: - useCallback has overhead (memory + complexity) - Only worth it if child component is wrapped in React.memo() - Most apps don't need it Real performance issues: - Too many DOM nodes (not callbacks) - Inefficient state updates (batching issue) - Expensive computations (use useMemo instead) - Missing keys in lists (array render issue) I spent 2 weeks optimizing callbacks in PulseStack. Removed 80% of them.  Result? No performance change. What changed performance was fixing my  list rendering and state update batching. the lesson i learn is Profile your code before optimizing. Don't optimize blindly. happy to hear your pov 🙂 too ! , i am also here to learn ✨ from you guys . #React #Performance #JavaScript #WebDevelopment #FrontendOptimization

Want to build scalable and high-performance apps with React Redux? Dive into our complete beginner-friendly guide and simplify your state management like a pro! 👉 Read now:  https://lnkd.in/gW7fPkjR #ReactRedux #ReactJS #WebDevelopment #FrontendDevelopment #JavaScript #AppDevelopment #TechGuide #Developers #CodingLife #LatitudeTechnolabs

In React, you can show or hide components based on conditions 3 ways to do it....  1. 𝗶𝗳/𝗲𝗹𝘀𝗲 if (isLoggedIn) return <Dashboard /> else return <Login /> 2. 𝗧𝗲𝗿𝗻𝗮𝗿𝘆 𝗼𝗽𝗲𝗿𝗮𝘁𝗼𝗿 {isLoggedIn ? <Dashboard /> : <Login />} 3. && 𝗼𝗽𝗲𝗿𝗮𝘁𝗼𝗿 {isLoggedIn && <Dashboard />} Use && when you only want to show something and have nothing to show otherwise. Use ternary operator when you have two options. This is how every login/logout, loading spinner, and error message works in a React app #reactjs #webdevelopment #javascript #MERN

I noticed something small… that actually breaks user experience. Open the same app in two tabs. Change the language in one tab. The other tab stays the same. Now the user sees two different languages at the same time. That’s confusing. This happened in my React app. The feature worked perfectly… but only in a single tab. The problem wasn’t the backend. It was that tabs don’t share state by default. So I fixed it using the BroadcastChannel API. It lets tabs communicate with each other in real time. Now the flow is simple. • Change language in one tab • Send a message using BroadcastChannel • All other tabs receive it instantly • UI updates everywhere No refresh. No extra API calls. Everything stays in sync. For more advanced setups, this can also be combined with: • localStorage (for better browser support) • Service Workers (for more control) Final thought. Sometimes the issue isn’t the feature… It’s how it behaves in real-world usage. Would love to hear how others are solving multi-tab state problems. #React #JavaScript #Frontend #WebDevelopment #SoftwareEngineering #WebDev #FrontendDevelopment #Programming #Developers #Coding #BuildInPublic #DevCommunity #Tech #SoftwareDeveloper #ReactJS #JS #WebApps

I improved performance in my React app today 🚀 The problem: Slow loading and unnecessary re-renders. What I changed: • Implemented lazy loading (React.lazy) • Applied code splitting • Optimized API calls • Reduced unnecessary state updates Result: ⚡ Faster load time ⚡ Smoother user experience Lesson: Performance is not a feature. It’s a responsibility. What’s one performance trick you always use? #reactjs #performance #webdevelopment #javascript #frontenddeveloper

Your React app is slower than it needs to be. Here's how to fix it. Most devs write React the way they learned it — and never revisit it. The result? Unnecessary re-renders, bloated bundles and lists that freeze on scroll. In this carousel I cover 5 patterns I apply to every React project: → useCallback & useMemo — when to use them (and when not to) → Why state lifting is silently killing your render tree → Code splitting: route-level is the highest ROI change you can make → Virtualisation for long lists — 10,000 rows in under 5ms → The performance checklist, in priority order Save this. Your users will notice the difference. If you found this useful, follow me for weekly React & full-stack tips. What's your go-to React performance trick? Drop it in the comments #ReactJS #ReactPerformance #FrontendDevelopment #WebDevelopment #JavaScript #TypeScript #SoftwareEngineering #Programming #WebPerformance #ReactNative #TechTips #FullStackDeveloper #CodeQuality #DeveloperTips #Frontend