Why You Should Use React Strict Mode

Today’s Node.js experiment: building an interactive command-line app using the Readline module 🧠 Getting comfortable with user input handling and asynchronous behavior in Node.js — one step at a time 🚀 #NodeJS #JavaScript #WebDevelopment #CLI #Backend #CodingJourney #LearnByDoing

⚙️ React useMemo — The Secret to Smarter Re-renders When your React app feels slow, it’s not always the big things — sometimes, it’s the small re-renders. useMemo helps you cache expensive calculations so they don’t re-run unnecessarily. It’s like telling React: “Hey, if nothing changed, don’t redo the hard work!” 💪 This small optimization can make a big difference in large apps ⚡ #ReactJS #useMemo #ReactTips #FrontendDevelopment #JavaScript #WebDevelopment #PerformanceOptimization #CodingJourney #ReactHooks #ProblemSolving #LearnWithMaaz

Remember when every new Node project started with: npm i dotenv nodemon Turns out we don’t really need either anymore. Node now has native support for both: • .env files → node --env-file=.env app.js • auto-reload on save → node --watch app.js That’s it. No extra setup. No dependencies. Just one command and you’ve got live reload and environment variables handled by Node itself. #NodeJS #JavaScript #Backend #Developers #WebDevelopment

🚀 Starting with React.js: The Basics You Need to Know! 🚀 React.js is a powerful JavaScript library for building dynamic user interfaces, especially single-page applications. Its core strength lies in breaking down the UI into reusable components, making development efficient and scalable. Here’s a super simple example: import React from 'react'; function App() { return ( <div> <h1>Hello, React World!</h1> </div> ); } export default App; This tiny app defines a functional component named App that renders a heading saying “Hello, React World!”. This component can then be rendered anywhere in your application.Why React? Because it makes UI predictable, component-based, and easy to maintain. Happy Coding! 💻✨ #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #Coding #Programming #Developer #Tech #100DaysOfCode #LearnToCode #SoftwareEngineering #JSX #WebApps #ReactBeginner #FullStackDevelopment

🚀 Just launched: @malahimdev/global-state — a tiny, zero-boilerplate global state manager for React & Next.js (App Router compatible). 💡 Inspired by Zustand, but simpler — no Providers, no Context, just clean and reactive global state that works anywhere. ⚙️ Key Features: 🧠 Zustand-like API with full TypeScript support ⚡ No Providers needed — works out of the box 😎 100% compatible with Next.js App Router 🧩 Create multiple global stores with ease 🧠 I built this just for learning and exploration — to understand how global state management really works under the hood. 📦 Installation: npm i @malahimdev/global-state 🔗 Try it now: https://lnkd.in/d9H-x_6g 🌍 Author: Malahim Haseeb #ReactJS #NextJS #AppRouter #TypeScript #OpenSource #WebDevelopment #Frontend #JavaScript #GlobalState #StateManagement #ReactHooks #DeveloperTools #Zustand #npm #Coding #DevCommunity #MadeWithLove #TechInnovation #SoftwareDevelopment #MalahimDev #LearnByBuilding #ReactDeveloper #NextjsDeveloper #CleanCode

🤔Do you really know how React Memoization works❓ Most developers have heard of useMemo, useCallback, and React.memo 🫨, but only a few truly understand when and why to use them. 💡 I’ve created this simple visual guide to make it crystal clear: 🧱 React.memo → Prevents child re-render if props don’t change ⚙️ useCallback → Caches functions to avoid new references 🧮 useMemo → Caches computed results for expensive operations 👉 Use them wisely — not everywhere! Overusing these hooks can actually hurt performance instead of improving it. Would love to hear your thoughts 👇 When was the last time you actually needed memoization in your React app? #ReactJS #ReactHooks #WebDevelopment #FrontendDevelopment #JavaScript #useMemo #useCallback #ReactMemo #PerformanceOptimization #CodingTips #MERNStack #SoftwareEngineering #CleanCode #ReactBestPractices

🚀 Output Challenge #6 — The useEffect Dependency Trap This one breaks most React apps silently 👇 function App() { const [count, setCount] = React.useState(0); React.useEffect(() => { console.log("Effect runs"); }, [count]); const handleClick = () => { setCount(count + 1); setCount(count + 1); }; return ( <div> <button onClick={handleClick}>Increment</button> </div> ); } 🧠 Question: You click the “Increment” button once. How many times does "Effect runs" appear in the console? And why? (Hint: Think about batched updates, dependencies, and state snapshots) 💬 Drop your answer + reasoning below 👇Let’s see who can explain what really happens behind React’s batched state magic 🔥 #React #Nextjs #JavaScript #Frontend #TypeScript #WebDevelopment #useEffect #Hooks #CleanCode #Performance #DeveloperCommunity #InterviewPreparation

Why I use utilities and hooks in React 🧠 Utilities = pure logic. Easy to test, reuse, and keep out of components. 🪝 Hooks = shared behavior. Clean up side effects, manage state, and keep components focused. This setup helps me: ✅ Avoid duplication ✅ Improve readability ✅ Scale faster across projects If you're building React apps, this pattern saves time and headaches. #ReactJS #TypeScript #CustomHooks #CleanCode #FrontendDev

Node.js just made dotenv and nodemon obsolete. For years, every project started with: npm i dotenv nodemon Not anymore. Now Node has: Native .env support → node --env-file=.env app.js Built-in watch mode → node --watch app.js No extra packages. No setup. Just pure Node. dotenv and nodemon walked so Node could run. #NodeJS #JavaScript #WebDevelopment #Backend #Developers #Coding #SoftwareEngineering #DevCommunity

How I approach error boundaries in React React’s error boundaries prevent the entire UI from crashing due to one small bug. For large apps, this is a lifesaver. It’s a simple yet powerful concept that every React dev should implement. 👉 Do you use error boundaries in your apps? #ReactJS #ErrorHandling #Frontend #JavaScript