React Props vs State: Understanding the Difference

React Hooks changed the way I write React forever. 🎣 Before hooks, I was juggling class components, lifecycle methods, and `this` bindings just to manage basic state. Then `useState` and `useEffect` walked in and said "relax, we got you." 😄 A few things I love about hooks: → `useState` — dead simple state management, no class needed → `useEffect` — handle side effects cleanly in one place → `useCallback` & `useMemo` — performance wins without the headache → Custom hooks — extract and reuse logic like a pro The best part? Your components become smaller, more readable, and actually fun to write. If you're still on class components, I genuinely encourage you to make the switch. The learning curve is worth it — I promise. 🙌 What's your favourite hook? Drop it in the comments! 👇 #ReactJS #React #WebDevelopment #Frontend #JavaScript #ReactHooks #Programming #SoftwareEngineering

I just published a new article breaking down some of the most important React fundamentals that finally clicked for me. https://lnkd.in/df7igt6X It covers: - Declarative vs Imperative thinking - Components and Props - State and why it actually matters - The real reason React re-renders - Common mistakes with event handling One of the biggest takeaways for me was understanding this: React doesn’t “update variables” — it re-runs your component, and only state survives between renders. That small shift in thinking makes a huge difference when working with React. If you’re learning React or struggling with concepts like state and re-renders, this might help clarify things. I’d appreciate any feedback or thoughts. #React #JavaScript #Frontend #WebDevelopment #LearningInPublic

🚀 Understanding `useState` & `useEffect` in React If you're working with React, these two hooks are must-know fundamentals: 🔹 **useState** * Used to create and manage state inside a functional component * Returns a state value and a setter function * Triggers re-render when state changes Example: ```js const [count, setCount] = useState(0); ``` 🔹 **useEffect** * Used for side effects (API calls, subscriptions, DOM updates) * Runs after the component renders * Can depend on state or props Example: ```js useEffect(() => { console.log("Component mounted or count changed"); }, [count]); ``` 💡 **Why `useState` should be declared before `useEffect`?** React hooks follow a strict rule: 👉 Hooks must be called in the same order on every render. Since `useEffect` often depends on state values, defining `useState` first ensures: * State is initialized before being used * Dependencies inside `useEffect` are available * Hook order remains consistent (avoiding bugs or crashes) ⚠️ Breaking hook order can lead to unexpected behavior and hard-to-debug issues. ✅ Always follow: 1. Declare state (`useState`) 2. Then handle side effects (`useEffect`) --- Mastering these basics makes your React apps more predictable and maintainable 💻✨ #React #JavaScript #WebDevelopment #Frontend #Programming #ReactHooks

🚀 Leveling up my React JS knowledge! Here's what I learned this week — explained simply 👇 ⚛️ 1. Reconciliation React doesn't re-render the entire DOM every time. It compares the old and new Virtual DOM, finds the difference, and updates ONLY what changed. Result? Blazing fast UI! 🔥 🔄 2. Batch Updating React is smart — it groups multiple state updates together and re-renders ONCE instead of multiple times. Fewer re-renders = better performance! 💡 👶 3. Children Prop Want to pass content between component tags? That's the children prop! It makes components flexible and reusable — like a wrapper that accepts anything inside it. 🎛️ 4. Controlled vs Uncontrolled Inputs ✅ Controlled → React controls the input value via state. You're in full control. ❌ Uncontrolled → The DOM handles the value using refs. Less code, less control. Controlled inputs = predictable, testable, and recommended! ✅ Every concept I learn makes me a better developer. 💪 Still learning. Still growing. 🌱 #ReactJS #JavaScript #WebDevelopment #Frontend #100DaysOfCode #LearningInPublic

most React developers have too many useEffects. i did too. until i read this rule and couldn't unsee it: if you're using useEffect to sync state with another state you don't need useEffect. here's what i mean. (the pattern 1 .. i see everywhere) but pattern 2 give same result . no effect. no extra render cycle. useEffect is for syncing React with something outside React. - fetching data from an API - setting up a subscription - manually touching the DOM not for calculating values you could just... calculate. every unnecessary useEffect is a hidden render cycle your users pay for. before you write useEffect ask one question: am i syncing with something outside React, or am i just doing math? if it's math delete the effect. #reactjs #typescript #webdevelopment #buildinpublic #javascript

🚀 ReactJS Cheat Sheet – Save this for later! If you're working with React or just getting started, here’s a quick and practical breakdown 👇 ⚛️ Components & JSX Think of components as building blocks. JSX lets you write HTML-like code inside JavaScript. 🔁 Props & State Props = data passed from parent State = data managed inside component 🪝 Essential Hooks useState → manage state useEffect → side effects useRef → DOM access useMemo/useCallback → performance boost 🖱️ Events & Handlers Handling clicks, inputs & user actions is super simple with functions. 🔀 Conditional Rendering Show UI based on conditions using ternary operators or logical && 📋 Lists & Keys Render lists with `.map()` and always use unique keys! ⚡ Performance Optimization Avoid unnecessary re-renders with memoization & efficient state updates. 📌 Quick Tip: Keep components small, reusable & clean! --- 💡 Save this post for revision & share with your dev friends! #ReactJS #WebDevelopment #Frontend #JavaScript #CodingTips #100DaysOfCode #Developers #Tech #Programming #ReactDeveloper #LearnToCode 🚀

Most React devs use hooks daily… But a lot of us are using them wrong (or at least inefficiently). Here are 5 React Hooks you're probably misusing 👇 1. useEffect: Doing too much If your useEffect looks like a mini backend service… that’s a red flag. 👉 Keep it focused: one responsibility per effect. 👉 Avoid unnecessary dependencies (or missing ones 😬). 2. useState: Over-fragmenting state Multiple useState calls for tightly related data = messy logic. 👉 Consider grouping related state into one object 👉 Or use useReducer for complex flows 3. useMemo: Premature optimization Not everything needs memoization. 👉 If your calculation is cheap, skip it 👉 Overusing useMemo can hurt readability more than it helps performance 4. useCallback: Blind usage Wrapping every function in useCallback ≠ optimization 👉 Only use it when passing functions to memoized components 👉 Otherwise, you're just adding complexity 5. useRef: Misunderstood power It’s not just for DOM access 👉 Great for persisting values without re-renders 👉 Perfect for timers, previous values, or mutable variables 💡 Rule of thumb: If you can’t clearly explain why you're using a hook… you probably don’t need it. What’s a hook mistake you’ve made (or still make)? 😄 #React #WebDevelopment #Frontend #JavaScript #Programming #CodingTips

🚀 Understanding Hooks in React (Simple Explanation) When I first started learning React, I thought state management was only possible with class components… but then I discovered Hooks — and everything changed. 👉 Hooks are special functions in React that allow functional components to use features like state and lifecycle methods. 💡 Example: With useState, we can easily manage state inside a function component — no need for classes anymore. Why Hooks are powerful: ✔ Cleaner and more readable code ✔ Reusable logic across components ✔ Less boilerplate compared to class components ✔ Makes development faster and more scalable Some commonly used Hooks: 🔹 useState – manage state 🔹 useEffect – handle side effects (API calls, timers) 🔹 useRef – access DOM elements 🔥 One simple line: Hooks = extra powers for functional components. Learning Hooks really changed how I write React code — and made development feel much more intuitive. #ReactJS #WebDevelopment #Frontend #JavaScript #LearningInPublic #Developers

What Are React Hooks? ⚛️ React Hooks changed the way we build components making code cleaner, more reusable, and easier to manage. In simple terms, React Hooks let you use state and other React features without writing a class component. 🔹 Common Hooks: • useState – Manage state in functional components • useEffect – Handle side effects (API calls, updates) • useContext – Share data across components • useRef – Access DOM elements directly 🔹 Why Hooks Matter: • Cleaner and more readable code • Better logic reuse • Simplified state management • Faster development Hooks aren’t just a feature they’re a shift toward modern React development. If you’re still relying on class components… it’s time to upgrade 🚀 #ReactJS #WebDevelopment #JavaScript #Frontend #Programming #ReactHooks

Resource Drop: Complete React Notes (Beginner → Advanced) We’re excited to share a comprehensive set of React notes covering core concepts and real-world fundamentals. 📌 What’s included: • React fundamentals & working • Virtual DOM vs Real DOM • CDN, CORS, async vs defer • NPM, NPX, Parcel & Bundlers • JSX, Babel & Components • React Hooks (useState, useEffect) • Reconciliation & Diff Algorithm • Architecture (Monolith vs Microservices) These notes are designed to help developers build a strong foundation in React and understand concepts beyond just tutorials. 📄 Access the full notes here: 💡 Ideal for: • Beginners starting with React • Developers revising fundamentals • Students preparing for frontend interviews Follow Muhammad Nouman for more useful content If you find this useful, don’t forget to 👍 and share with your network. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #Programming #Developers #LearnToCode