Day 5 of #30DaysOfComponents brings you a dynamic and responsive Date Picker in React ⚛️. This Calendar with Month & Year Dropdown features: - Month & Year selection via dropdowns - Dynamic grid generation using Date() APIs - Leap year handling for accuracy - Highlighting for both "today" and selected dates - Smooth hover effects with a modern frosted glass UI Excited to share this creation with you all! 🌟 Code URL: https://lnkd.in/gMANzWfQ #React #JavaScript #Frontend #UIComponents #CodingChallenge
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Sometimes, your React component re-renders even when props haven’t changed. That’s where React.memo helps. It wraps a component and re-renders it only if the props actually change. This can make a big difference in complex UIs tables, charts, or lists. But don’t overuse it. Adding React.memo everywhere might even slow things down due to prop comparison overhead. Use it where re-renders are expensive. Do you use React.memo in your components regularly? #react #frontend #webdev #javascript
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React Tip: If you’re using useEffect just to update a state when another state changes — pause for a second. That’s often a signal you might be duplicating state unnecessarily. Example: useEffect(() => { setFiltered(users.filter(u => u.active)) }, [users]) Instead, derive it directly in render: const filtered = users.filter(u => u.active) Derived data > duplicated data. It keeps your component cleaner, more predictable, and easier to debug. Have you caught yourself doing this before? #React #ReactJS #WebDevelopment #Frontend #JavaScript #ReactHooks #useEffect #CleanCode #ProgrammingTips #DevCommunity
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What’s the Difference Between Props and State? In React, there are two main ways to handle data: Props and State. They both carry information, but serve different purposes. 🔹 Props (Properties) Passed from parent to child. Are read-only. Let you control a component from outside. 🔹 State Defined and managed inside the component. Mutable via the setter. Changes with user interaction and updates the UI. 🧩 In short: Props are external, State is internal. Together, they make React components interactive and dynamic. #React #PropsVsState #ReactSeries #ReactCheatSheet #Frontend #JavaScript #WebDevelopment #ReactHooks #LearnReact #DevCommunity #CodingTips
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⚡ Build Your Own React Hook Library — Organize, Reuse, Scale Most React projects eventually become a mess of duplicated logic across multiple components. But once you learn to structure and export your hooks properly — everything changes. Here’s what having a Hook Library gives you: ✅ Cleaner code ✅ No duplicated logic ✅ Shorter imports ✅ Easier onboarding for teammates Write code once → reuse forever. ♻️ Have you built your own internal hook library yet? #React #ReactJS #ReactHooks #Frontend #WebDevelopment #CleanCode #DeveloperExperience #JavaScript #CustomHooks #Performance #CodingTips
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I guess one of the first software programs I interacted with as a kid was Winamp ⚡, intrigued by bar sounds and how they react to different sounds. It's impressive how easy it is to recreate this behavior in JavaScript. On this website (https://lnkd.in/dqSEChiN), I show how we can display sound bars based on microphone input. And of course, here is the codebase: https://lnkd.in/dc2emKGp #JS #javascript #frontend #webdevelopment #webdev
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🚀 Stateful vs Stateless in React A stateless component is like that friend who forgets everything — you tell them your name, and they say, “Who are you again?” 😅 A stateful component? That’s the one who remembers your birthday, your dog’s name, and your last API call 🐶💻 In React: Stateless = just displays what you give it (no memory) Stateful = remembers stuff and reacts when things change Balance them well — even your code needs healthy relationships. 💡 #React #WebDevelopment #JavaScript #MERN #Frontend #CodingHumor
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⚛️ Ever wondered how React updates your screen so fast — even when you hit setState() hundreds of times? Every time you call setState(), React quietly rebuilds your UI — but instead of repainting everything, it compares two blueprints (Virtual DOMs), finds what changed, and updates just that piece. That detective work is Reconciliation, powered by React Fiber. It’s why React feels fast — not because it does more, but because it updates less. ⚡ #ReactJS #Frontend #JavaScript #LearningInPublic #WebDev #SoftwareEngineering
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Is React Getting Too Complicated? React introduced another hook: useEffectEvent() in v19.2. But do we really need it? Or are we just patching complexity with more complexity? React is still incredibly powerful. But if you're building a simple UI, you shouldn't need a "PhD" in hooks to avoid stale closures. 🔹 We got useEffect to simplify side effects. 🔹 Then we added useCallback, useMemo, and useRef to fix its pain points. 🔹 Now we’re adding useEffectEvent… to fix the problems created by useEffect. See the pattern? It feels like every new hook solves a problem introduced by the last one. 💬 Would love to hear: Are you embracing these new hooks — or looking at other frameworks (like Svelte or Solid) for simplicity? #ReactJS #JavaScript #WebDevelopment #Frontend #useEffectEvent #React19 #DeveloperExperience #Opinion #WebDev
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⚡ React Hooks You’re Misusing (and How to Fix It) Most React projects don’t break because of syntax issues — they break because of hook misuse. Here are 5 common mistakes React devs make: ❌ Missing dependencies in useEffect ❌ Inline functions causing unnecessary re-renders ❌ Storing values in state that can be derived ❌ Using useEffect for simple transformations ❌ Using useState when useRef is the better fit ✅ Fixes include using useCallback, useMemo, derived state, and proper dependency management. Mastering hooks = mastering React. Which mistake have you seen the most? #React #ReactJS #ReactHooks #WebDevelopment #Frontend #CleanCode #JavaScript #PerformanceOptimization #DevTips
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