React Props vs State Explained

🚀 React JS Hooks – Simple Understanding React Hooks made development easier by allowing us to use state and lifecycle features in functional components — no need for complex class components anymore. 🔹 Use state Helps you manage and update data inside a component. Whenever the data changes, the UI updates automatically. 🔹 Use effect Used for handling side effects like API calls, timers, or updating the DOM after rendering. --- ✨ Why Developers Love Hooks? ✔ Cleaner and shorter code ✔ Easy to understand and maintain ✔ Reusable logic across components ✔ Better performance in modern apps --- 💡 Pro Tip: Start with useState and useEffect — once you master these, React becomes much easier to work with. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #Coding #Developers

While learning React, I made a mistake that slowed me down… I used useEffect for everything. Fetching data Updating state Even simple calculations At first, it felt powerful. But soon my code became: Confusing Hard to debug Full of unnecessary logic Then I realized something important: 👉 Not everything belongs in useEffect Now I: • Keep logic simple • Avoid unnecessary state • Use hooks only when needed The biggest lesson: Clean code > clever code Curious to know: What confused you most while learning React? #ReactJS #FrontendDeveloper #WebDevelopment #JavaScript

most React developers use useCallback wrong. not because they don't understand it. because they were taught the wrong rule. the rule they heard: "wrap functions in useCallback to prevent unnecessary re-renders. the actual rule: useCallback only helps when you pass that function to a child component wrapped in React.memo or as a dependency in useEffect. that's it. useCallback doesn't prevent re-renders of the parent. it just memoizes the function reference so children don't see a "new" function every render. three questions to ask before reaching for useCallback: - is this function passed to a memoized child component? - is this function a dependency in a useEffect? - is this function expensive to recreate? if none of these just write the function normally. the best optimisation is usually the one you don't add. #reactjs #typescript #webdevelopment #buildinpublic #javascript

I used to think React.ReactNode and React.ReactElement were the same thing… They are NOT. And this mistake silently breaks a lot of beginner code Here’s the simplest way I now understand it: *React.ReactNode = anything React can render *React.ReactElement = only JSX elements Sounds small, but watch this If you write: children: React.ReactElement You just blocked this: <Container>Hello</Container> Because "Hello" is NOT a ReactElement. But when you use: children: React.ReactNode Now everything works: ✅ Text ✅ Components ✅ Elements ✅ Even null When to use : ✅ Use React.ReactNode when: * You’re typing children * You want flexibility * You don’t care what gets rendered, as long as React can display it Avoid React.ReactNode when: * You need strict control over what is passed ✅ Use React.ReactElement when: * You want ONLY JSX/components * You’re enforcing structure (e.g. design systems, wrappers) *Avoid React.ReactElement when: * You expect text, numbers, or mixed content What I learned today: TypeScript isn’t just about types… It’s about preventing subtle bugs before they happen I’m currently learning React + TypeScript and sharing what I discover daily. If you’re on the same journey, let’s connect 🤝 #typescript #reactjs #frontenddeveloper #webdevelopment #codingjourney #javascript #buildinpublic #devcommunity #learninpublic

🚀 30 Days of React JS – From Basics to Build Sharing a structured roadmap that covers React step-by-step — perfect for anyone starting out or revising fundamentals. This visual breaks down learning into daily, manageable topics, starting from the core basics and gradually moving toward advanced concepts and real-world implementation. 📌 What this roadmap includes: • Strong foundation with JSX, components, props, and state • Hands-on concepts like event handling, forms, and conditional rendering • Deep dive into hooks like useState, useEffect, and custom hooks • Real-world skills like API integration, routing, and performance optimization • Advanced topics like Context API, code splitting, and testing • Final goal: Build a mini project to apply everything 💡 The idea is simple: Consistency over intensity — 1 concept a day can build strong expertise over time. Whether you're a beginner or someone brushing up React skills, this roadmap keeps your learning focused and structured. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #LearningPath #30DaysOfCode #Developers

🚀 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

React Learning Moment !! Today, while revising some React concepts I've studied before, I suddenly found myself stuck at the props.children concept. I spent a few minutes really focusing on it, and now I finally understand why it's so powerful and useful! In React, props.children allows a parent component to pass any nested content to a child component. This makes components flexible and reusable, letting you separate layout/styling from content. For example, in my practice project: The Parent component passes content. The Son and Daughter components render this content using {props.children}. Check out this simple diagram I made to visualize the flow 👇 . . . 📖: For more detail https://lnkd.in/d2ewC35h #ReactJS #WebDevelopment #LearningInPublic #JavaScript #FrontendDevelopment #CodingJourney

🚀 React Developer Roadmap – Step by Step Guide If you want to become a React Developer, follow this simple roadmap: 1. HTML + CSS Build strong basics of structure and styling. 2. JavaScript Basics Understand variables, functions, loops, and logic. 3. ES6 Learn modern JavaScript (arrow functions, destructuring, modules). 4. DOM Manipulation Know how JavaScript interacts with the browser. 5. Git & GitHub Version control is a must for every developer. 6. React Basics Components, JSX, props, and state. 7. Hooks Learn useState, useEffect, useRef, etc. 8. React Router Handle navigation between pages. 9. State Management Use Context API or Redux for managing data. 10. Build Projects Practice by creating real-world applications. 💡 Consistency is the key. Learn → Practice → Build → Repeat. 🔥 Start today and become a React Developer! 💬 What stage are you currently at? Comment below! #ReactJS #WebDevelopment #FrontendDeveloper #JavaScript #Coding #Programming #DeveloperRoadmap #LearnToCode #ReactDeveloper

Understanding State Management in React JS is a game changer for every frontend developer 🚀 From managing simple local states to handling complex global data, mastering this concept helps you build scalable and efficient applications. In this post, I’ve simplified: ✔ What is State ✔ How it works in React ✔ Local vs Global State ✔ Popular tools like Context API, Redux & Zustand If you're learning React, this is one concept you can't afford to ignore 💡 👉 Save this post for later & share your thoughts in the comments CODING OF WORLD #ReactJS #WebDevelopment #FrontendDevelopment #JavaScript

📘 Mastering React JS Fundamentals & Core Concepts Continuously strengthening my front-end development skills, I’ve been diving deep into React JS fundamentals and organizing key concepts in a structured way. This learning covers: 🔹 React basics and component-based architecture 🔹 Understanding JSX and how it works behind the scenes 🔹 Difference between State vs Props and their roles in data handling 🔹 Hands-on practice with Hooks like `useState` and `useEffect` 🔹 React lifecycle and how components update efficiently using the Virtual DOM Building a strong foundation in these core concepts is essential for developing scalable and high-performance web applications. 🚀 Always learning, always improving. #ReactJS #WebDevelopment #FrontendDevelopment #JavaScript #CodingJourney #SoftwareDevelopment