ReactJS Components & Props: Building Scalable UI

🚀 Learn ReactJS — Day 5 Deep dive into Performance & Advanced State Hooks — making React apps faster, smarter, and easier to manage. This session focuses on optimizing renders and handling complex state logic cleanly. ✅ useMemo — Optimizing Heavy Calculations ✔ Stores the result of a calculation ✔ Reuses previous result if dependencies don’t change ✔ Prevents unnecessary recalculations on re-render ✔ Improves performance when working with expensive operations 💡 When to use ✔ Filtering large lists ✔ Complex calculations ✔ Derived data from props/state ✔ Performance optimization in large components 📌 Real-time example In a supplier list page (like your ViewSupplier structure), filtering thousands of records every render can slow UI. useMemo recalculates only when the list changes. ✅ useCallback — Preventing Unnecessary Re-renders ✔ Memorizes a function reference ✔ Returns same function unless dependencies change ✔ Prevents child component re-render caused by new function instance 💡 When to use ✔ Passing functions to child components ✔ Optimized components (React.memo) ✔ Event handlers in frequently re-rendering components ✔ Performance-sensitive UI 📌 Real-time example In your Header menu system, event handlers passed to menu items should not recreate every render. useCallback keeps the same function reference → smoother UI. ✅ useReducer — Managing Complex State Logic ✔ Manages state using a reducer function ✔ Updates state through actions ✔ Centralizes and organizes state logic ✔ Best for complex workflows 💡 When to use ✔ Multiple related state values ✔ State transitions based on conditions ✔ Form handling with validation ✔ Business logic-heavy components 📌 Real-time example Your Forgot Password flow: email → OTP → new password → confirm password Multiple steps + conditions → perfect useReducer use case. 💡 Key Learning React is not just about rendering UI — it’s about rendering efficiently. These hooks help control re-renders, optimize performance, and manage complex logic in a clean, scalable way. Step by step learning → better architecture → production-ready apps 💻✨ #ReactJS #JavaScript #FrontendDevelopment #FullStackDeveloper #WebDevelopment #FrontendDeveloper #Coding #Programming #SoftwareDevelopment #WebDesign #LearnReact #DeveloperJourney #CareerInTech #CodingLife #TechSkills #SoftwareEngineer #TechCommunity #OpenSource #WebDevCommunity #ReactDeveloper #FullStack #DevCommunity #NodeJs #NPM

🚀 React.js Basics: Understanding Props vs State While learning and building projects in React.js, one of the most important concepts to understand is the difference between Props and State. 🔹 State Managed inside the component Can change over time Used for dynamic data like counters, forms, UI updates 🔹 Props Passed from parent to child components Read-only (cannot be modified by the child) Used to share data between components 💡 Simple way to remember: State = Internal data of a component Props = Data passed from parent component Understanding these two concepts clearly helps in building clean, reusable, and scalable React components. I created this visual to make the concept easier for beginners who are learning React UI Development. 🌐 Explore my work: https://allconverthub.com https://lnkd.in/g4Hnzt9Z #ReactJS #FrontendDevelopment #UIDeveloper #JavaScript #WebDevelopment #ReactLearning #FrontendEngineer #Coding

🚀 React Journey Update While learning React, I realized that building UI isn’t just a “components” game — it’s equally about thinking and structure. ✅ What I’m focusing on these days: Component-based architecture (reusable UI) Props vs State (clear data flow) Hooks: useState, useEffect (real magic 😄) Conditional rendering & lists API integration (fetch/axios) + proper loading/error handling Basic performance mindset (memoization where it makes sense) 🎯 Goal: Clean, scalable, and readable code — something any teammate can easily understand and maintain. If you work with React, what’s your favorite hook and why? 👇 #React #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic #Programming

🚀 React Learning Update: Built a Password Generator Today I built a Password Generator using React while practicing some core React hooks and concepts. It has a simple UI, but the goal was to understand how things work behind the scenes. Even though the interface is minimal, I learned a lot while building it. 🔧 Concepts I practiced: • useState – managing password length, numbers, and special characters • useCallback – optimizing functions like password generation and copy logic • useEffect – automatically regenerating password when options change • useRef – selecting the password field for clipboard copy • Clipboard API – copying generated password with one click ⚙️ Features: • Adjustable password length (6–100) • Option to include numbers and special characters • Instant password generation when settings change • Copy to clipboard functionality The UI is simple, but projects like this really help in understanding how React hooks work together and how state updates affect the UI. Every small project is a step forward in the journey of becoming a better developer. 💻🔥 #React #JavaScript #FrontendDevelopment #WebDevelopment #ReactHooks #BuildInPublic #CodingJourney #100DaysOfCode

Mastering React Hooks is a game-changer for building scalable and efficient applications. ⚛️ From managing simple state to handling complex logic, React Hooks make functional components more powerful and maintainable. 🔹 useState — Manage component state 🔹 useEffect — Handle side effects like API calls 🔹 useContext — Share global data across components 🔹 useRef — Access DOM elements without re-render 🔹 useReducer — Manage complex state logic 🔹 useMemo & useCallback — Optimize performance 🔹 Custom Hooks — Reuse logic efficiently Understanding when and why to use each Hook helps in writing cleaner, reusable, and production-ready React code. 📌 Save this post for quick revision 📌 Share with fellow developers 📌 Keep learning, keep building #React #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #FullStackDeveloper #MERNStack #SoftwareDeveloper #CodingLife #LearnToCode #TechCareer #ReactHooks #DeveloperCommunity #100DaysOfCode #Programming

⚛️ The biggest mindset shift I had while learning React was this: Stop thinking in pages. Start thinking in components. Earlier, when building a UI, I used to think: “How do I build this whole page?” But React encourages a different approach: Break the UI into small reusable pieces. For example: A single page might actually be: 🔹 Navbar 🔹 Sidebar 🔹 Product Card 🔹 Button 🔹 Footer Each one becomes its own component. This makes code: ✔ Easier to maintain ✔ Easier to reuse ✔ Easier to debug Once I started thinking in components, building complex UIs became much more manageable. Small components → Scalable applications. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #FullStackDeveloper Ankur Prajapati MOHD ALI ANSARI Sheryians Coding School

🚀 7 Reasons Why React is So Powerful React is everywhere. But understanding why it works so well is what separates beginners from real developers. Here are 7 core features that make React stand out: 🔹 Virtual DOM Updates only the changed parts of UI → faster performance and smoother user experience. 🔹 Component-Based Architecture Break UI into small reusable pieces → clean, scalable, and maintainable code. 🔹 Reusability Write once, reuse across the app → faster development and consistency. 🔹 JSX (JavaScript XML) Write HTML-like code inside JavaScript → improves readability and developer productivity. 🔹 Declarative Approach Focus on what the UI should look like → React handles the updates efficiently. 🔹 Strong Ecosystem Huge community, tools, and libraries → faster problem solving and development. 🔹 Hooks Simplify state and lifecycle management → cleaner and more powerful functional components. — Anuj Pathak #reactjs #javascript #webdevelopment #frontenddevelopment #softwareengineering #developersoflinkedin #programming #coding #techlearning #learninginpublic #buildinpublic

🚀 Today I Learned: React Lifecycle (Class vs Functional Components) Today I spent some time understanding how React components live, update, and disappear inside an application. This concept is called the React Lifecycle. Every component in React goes through three main phases: 🔹 Mounting – When a component is created and added to the DOM for the first time. In class components this involves steps like the constructor, rendering the UI, and then running logic after the component is mounted. 🔹 Updating – This phase happens whenever state or props change. React re-renders the component and updates the DOM with the new changes. 🔹 Unmounting – This is when a component is removed from the DOM. Any cleanup logic should happen here. One interesting thing I realized is how functional components handle lifecycle differently compared to class components. Instead of multiple lifecycle methods, functional components mainly rely on effects and dependencies to control behavior during mounting, updating, and unmounting. 💡 My key takeaway today: Even though the implementation looks different in class and functional components, the core lifecycle phases remain the same — Mount → Update → Unmount. Understanding this makes it much easier to reason about when and why React components run certain logic. Learning React step by step and connecting these concepts is starting to make the framework feel much more intuitive. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #LearningInPublic #100DaysOfCode #DeveloperLife #Coding #BuildInPublic #CodingChallenge #FrontendDeveloper #DeveloperJourney #WebDevCommunity #MERNStack #Consistency #TechLearning #FullStack

💡 Handling Click Events in React In React, user interactions like button clicks are handled using onClick events. 👉 onClick triggers a function 👉 Function updates state or performs an action 👉 UI updates automatically 📌 Common Uses: • Button actions • Form submissions • Toggle features • Navigation triggers • Dynamic UI updates ⚡ React uses camelCase event naming Example → onClick (not onclick) Master event handling to build interactive React apps. Follow TFSC for practical frontend learning. #reactjs #reactevents #onclick #frontenddeveloper #javascript #webdevelopment #coding #learnreact #programming #tfsc

🚀 The Best Skills to Master in React JS React isn’t just a library — it’s a mindset. Most developers learn React… But only a few truly master it. Here are the key skills you should focus on if you want to level up as a React Developer: 🔹 Component Architecture – Build scalable & reusable UI 🔹 Hooks Mastery – useState, useEffect & custom hooks 🔹 State Management – Context API / Redux 🔹 Performance Optimization – Memoization, lazy loading 🔹 Routing – Seamless navigation with React Router 🔹 Forms & Validation – Clean and user-friendly forms 🔹 API Integration – Axios / Fetch handling 🔹 Clean Code & Reusability – Write maintainable code 🔹 Testing – Jest & React Testing Library 🔹 Deployment & Build Optimization 💡 What truly sets great developers apart? ✔️ Component thinking ✔️ Understanding state flow ✔️ Optimizing renders ✔️ Real-world architecture skills 🔥 Remember: React is not about syntax… It’s about thinking in components. --- 💬 What’s the hardest React concept you’ve faced so far? --- #ReactJS #WebDevelopment #FrontendDeveloper #JavaScript #Programming #SoftwareDevelopment #ReactDeveloper #Coding #TechSkills #Learning #100DaysOfCode #Developers #UIUX #CleanCode #PerformanceOptimization