Choosing between object props and prop spreading in React

Refactored my tiny Todo app to use OOP with vanilla ES modules — same UX, cleaner architecture. 🚀 What changed: Section: generic list renderer (items, renderer, containerSelector) for DOM-safe rendering. Popup / PopupWithForm: modal lifecycle (open/close, ESC, overlay) + form submit callback. Todo & FormValidator stayed the same — just re-wired via loose coupling. Why it’s better: Smaller index.js: only instantiates classes + wires interactions. Clear responsibilities per class; easier to test and extend. No framework, no build — just vanilla JS modules and semantic HTML. Repo: https://lnkd.in/e7KAt2-3 Live demo: https://lnkd.in/emMA52Y4 If you’re into clean, dependency-light patterns, peek the code and steal whatever’s useful. 😄 #javascript #vanillajs #OOP #webdev #frontend #ui #github #githubpages

Understanding Props & Default Props in React: In React, props (properties) are one of the core concepts that help components communicate with each other. They make our components dynamic, reusable, and flexible. What are props? * Props allow us to pass data from a parent component to a child component. * They are read-only, meaning a child component cannot modify them directly. Example: function Child(props) { return <h3>Hello, {props.name}!</h3>; } function Parent() { return <Child name="React Developer" />; } What are default props? * Default props provide fallback values when no prop is passed from the parent. * This ensures the component still renders without errors. Example: function Greeting({ name }) { return <p>Welcome, {name}!</p>; } Greeting.defaultProps = { name: "Guest", }; If no name is provided, React automatically uses “Guest”. Why Do They Matter? ✔ Improve component reusability ✔ Avoid undefined or missing values ✔ Make applications predictable and consistent ✔ Enhance code readability and maintainability In short: Props = Data passed to a component Default Props = Backup values for props KGiSL MicroCollege #React #JavaScript #WebDevelopment #Frontend #FullStack #Programming #Coding #SoftwareEngineering #ReactJS #DeveloperCommunity #LearningJourney #TechSkills #CodeNewbie #WomenInTech #MERN #UI #UX #FrontEndDeveloper #JSX #ReactTips #ReactDeveloper #CleanCode #ComponentBasedArchitecture #DefaultProps #PropsInReact #LinkedInLearning #DailyLearning #CodeLife #SoftwareDeveloper #WebTech #SkillUp #TechJourney #DeveloperLife #ReactHooks #FrontendSkills #Programmer

“𝗜𝘀 𝗥𝗲𝗱𝘂𝘅 𝘀𝘁𝘂𝗽𝗶𝗱? 𝗪𝗵𝘆 𝗰𝗮𝗻’𝘁 𝗺𝘆 𝗥𝗲𝗱𝘂𝘅 𝗿𝗲𝗱𝘂𝗰𝗲𝗿 𝗷𝘂𝘀𝘁 𝗰𝗵𝗮𝗻𝗴𝗲 𝘁𝗵𝗲 𝘀𝘁𝗮𝘁𝗲 𝗱𝗶𝗿𝗲𝗰𝘁𝗹𝘆?” I’ll admit it: the first time I used Redux, I thought the rules seemed… strange.  “𝘞𝘩𝘺 𝘤𝘢𝘯’𝘵 𝘮𝘺 𝘳𝘦𝘥𝘶𝘤𝘦𝘳 𝘫𝘶𝘴𝘵 𝘤𝘩𝘢𝘯𝘨𝘦 𝘵𝘩𝘦 𝘴𝘵𝘢𝘵𝘦 𝘥𝘪𝘳𝘦𝘤𝘵𝘭𝘺? 𝘐𝘴𝘯’𝘵 𝘵𝘩𝘢𝘵 𝘵𝘩𝘦 𝘸𝘩𝘰𝘭𝘦 𝘱𝘰𝘪𝘯𝘵?” Turns out, Redux isn’t stupid. Here’s the real reason: 👉 Redux depends on immutability to know something changed. When you mutate the existing state, Redux simply can’t detect it, because it uses shallow comparisons, not deep ones. In simple words: 🔗 It compares links, not values. So unless your reducer returns a new object reference, Redux has no signal that anything changed… …and your UI won’t update. If you mutate the old state: ❌ React might not re-render ❌ Debugging becomes guesswork ❌ Time-travel devtools break ❌ State history becomes impossible ❌ Performance optimizations fail 𝗔𝗻𝗱 𝗶𝗳 𝗶𝗺𝗺𝘂𝘁𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗳𝗲𝗲𝗹𝘀 𝗽𝗮𝗶𝗻𝗳𝘂𝗹? 👉 Redux Toolkit (RTK) uses Immer, so you can write “mutating” code, and it safely produces an immutable update behind the scenes. The end result: cleaner reducers, fewer bugs, faster debugging. Redux isn’t stupid, it’s strict for a reason, you just need to understand the logic behind it) #redux #reactjs #frontend #javascript #webdevelopment #reactdevelopment #reduxstate #immutability #frontendtips #codingjourney #learninpublic

Day-60 Full Stack Development 💡 Day 5: React Interactivity — Event Handling & Conditional Rendering In React, building dynamic UIs isn’t just about displaying data — it’s about how users interact with your components. Today, I explored how React handles events and how we can conditionally render content based on app state. 🖱️ 1️⃣ Event Handling in React React events are similar to DOM events but follow the camelCase naming convention and use JSX syntax. Example: <button onClick={handleClick}>Click Me</button> Functions like handleClick are defined inside the component and can update state or trigger other actions. React automatically binds event listeners efficiently through its Virtual DOM, ensuring smooth updates. ⚙️ 2️⃣ Passing Parameters to Event Handlers You can pass arguments easily using arrow functions: <button onClick={() => handleDelete(id)}>Delete</button> This keeps handlers flexible and avoids unnecessary re-renders. 🔁 3️⃣ Conditional Rendering React lets you show or hide elements dynamically using: Ternary operators: {isLoggedIn ? <Dashboard /> : <Login />} Logical && operator: {error && <p>Error loading data!</p>} This approach makes UIs clean, declarative, and responsive to state changes. ✨ In short: Event handling and conditional rendering together make React apps feel alive — responding instantly to user actions while maintaining component-based architecture. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #ConditionalRendering #ReactEvents #ManojLearnsReact #UIUX #CodingJourney #cfbr

🚀 Day 3/100 – Daily Machine Coding Challenge Day 3 of building. Day 3 of turning logic into interaction — because time management isn’t just for life, it’s for UI too ⏱️ 🧩 Today’s Challenge: Build a Countdown Timer in React. A simple yet precise app to practice state transitions, useEffect cleanup, and user control flows. ✅ Features Implemented: Set custom hours, minutes, and seconds Start, Pause/Resume, and Reset controls Real-time countdown with formatted display Alert when the timer hits zero 💡 Key Takeaway: Managing time in code is just like in life — every second counts. Clean state flow + precise control = predictable and elegant UI behavior. 🔗 Live Demo & Code: https://lnkd.in/dzjA5Mqg #Day3 #100DaysOfCode #MachineCoding #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #CleanCode #UIUX #StateManagement #LearnInPublic #DeveloperJourney #MERNStack #CodeSandbox #DailyChallenge #KeepBuilding

🪢 JS by Design #1: The 3 Categories of Design Patterns Design patterns are the building blocks of clean, maintainable JavaScript code. Whether you're building a small app or scaling a complex system, understanding these patterns will transform the way you write code. Every design pattern belongs to one of three main categories, each solving a different kind of problem 👇 🧩 1. Creational Patterns Goal: Simplify and control object creation. Examples: Constructor, Factory, Singleton, Prototype 💡 They answer: “How should I create this object efficiently and consistently?” 🏗 2. Structural Patterns Goal: Define how objects are composed and related. Examples: Adapter, Decorator, Facade, Proxy 💡 They answer: “How can I extend or wrap existing functionality without rewriting everything?” 🔁 3. Behavioral Patterns Goal: Manage communication between objects. Examples: Observer, Strategy, Command, Iterator 💡 They answer: “How should objects talk to each other?” ✨ In the next post, we’ll start exploring Creational Patterns — the foundation of flexible, scalable code. #JavaScript #Frontend #WebDevelopment #CodingTips #DesignPatterns #JSbyDesign #JSDailyBite

GitHub: https://lnkd.in/gUz87Czn 🔥 Project 6/20 – Form Validation ✨ Master JavaScript Form Validation Like a Pro! ✨ Form validation isn’t just about catching errors — it’s about building trust through clean UX. This project shows how to create a modern, responsive signup form with real-time validation using: ✅ Regex for smart pattern matching ✅ DOM manipulation for live feedback ✅ Dynamic success & error states ✅ Sleek UI powered by HTML, CSS & JS A must-have mini-project for your frontend portfolio, showcasing your understanding of logic, regex, and DOM feedback. Don’t just build forms — build confidence. 🚀 Save this post and tag a dev who loves clean UI ❤ #javascript #frontenddevelopment #webdevelopment #formvalidation #regex #htmlcssjs #frontendprojects #webdesign #programming #developers #codinglife #learnjavascript #dommanipulation #uicomponents #frontendinspiration #githubproject #modernui #codingtutorial #webdevlearning #codeweaver #softwareengineering #javascriptprojects #frontendskills #webdevcommunity #techcreators #frontenddesign #modernweb

🚀 Day 9/100 – Daily Machine Coding Challenge Day 9 of building. Day 9 of enhancing user security and experience — because strong passwords are the first step to keeping users safe 🔒✨ 🧩 Today’s Challenge: Build a Real-Time Password Strength Checker in React. A smart and interactive password validation tool that guides users to create strong, secure passwords — making security both accessible and intuitive. ✅ Features Implemented: 🔹 Real-time password validation for numbers, capital letters, special characters, and length 🔹 Instant visual feedback with color-coded conditions 🔹 “Save Password” button is enabled only when all conditions are met 🔹 Clean, responsive, and user-friendly UI 🔹 Built using React Hooks, controlled state, and regex checks 💡 Key Takeaway: Security doesn’t have to be complicated. A simple, interactive guide can make users feel confident and protected while creating strong passwords. When UX meets security, users trust and enjoy your interface. 🔗 Live Demo & Code: https://lnkd.in/dadT4f66 #Day9 #100DaysOfCode #MachineCoding #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #UIUX #UserExperience #PasswordStrength #CleanCode #LearnInPublic #MERNStack #DeveloperJourney #DailyChallenge #KeepBuilding 🚀

🧩 Composition — React’s Most Underrated Superpower When developers first learn React, the focus is usually on components, props, and hooks. But what truly makes React powerful isn’t any single API — it’s composition. React was designed around the idea that complex UIs can be built by composing smaller, reusable pieces — much like assembling Lego blocks. This simple idea solves one of the hardest problems in software: ➡️ Keeping code flexible, while still maintainable. Let’s break it down 👇 1️⃣ Props as configuration You can pass data and behavior through props, turning generic components into context-specific ones. <Button label="Save" onClick={handleSave} /> The same Button component can be used for a hundred different actions. 2️⃣ Children as composition Composition isn’t just about props — it’s about nesting components to create expressive, readable UIs. <Card> <Profile /> <Stats /> </Card> Now your Card component doesn’t need to know what’s inside — it just defines how things look. 3️⃣ Reusability through boundaries The best components don’t just share code — they share structure and intent. When you compose instead of duplicate, your system evolves without breaking itself. That’s the beauty of React’s design philosophy: It doesn’t tell you how to build — it gives you the freedom to design your own boundaries. And once you master composition, you stop thinking in components… and start thinking in systems. #ReactJS #FrontendDevelopment #WebArchitecture #DesignPatterns #SystemDesign #JavaScript #CleanCode #ReactDesignPatterns #WebDevelopment

🚀 Understanding React Class Component Lifecycle In React, Class Components have a well-defined lifecycle — a sequence of methods that run during the component’s creation, update, and removal from the DOM. Knowing these lifecycle methods helps developers control how components behave and interact with data at each stage. 🔹 1. Mounting Phase – When the component is created and inserted into the DOM. ➡️ constructor() – Initializes state and binds methods. ➡️ render() – Returns JSX to display UI. ➡️ componentDidMount() – Invoked after the component mounts; ideal for API calls or setting up subscriptions. 🔹 2. Updating Phase – When props or state changes cause a re-render. ➡️ shouldComponentUpdate() – Decides if the component should re-render. ➡️ render() – Re-renders the updated UI. ➡️ componentDidUpdate() – Called after re-render; perfect for DOM updates or data fetching based on previous props/state. 🔹 3. Unmounting Phase – When the component is removed from the DOM. ➡️ componentWillUnmount() – Used to clean up (like removing event listeners or canceling API calls). 💡 Example: I recently implemented lifecycle methods in a project to fetch product data using componentDidMount() from a fake API(https://lnkd.in/gkFvXQV6) and dynamically display it on the UI. It helped me understand how React efficiently handles rendering and updates. 10000 Coders Meghana M #ReactJS #WebDevelopment #Frontend #Learning #ReactLifecycle #JavaScript #CodingJourney