Lately, I've been diving deeper into React to understand how it actually works under the hood. Not just building components, but exploring things like: • How React handles re-renders • State management patterns • Performance optimizations • The internal logic behind hooks • How React's rendering process works It’s easy to use React, but truly understanding why things work the way they do is where real learning begins. My goal right now is simple: Go beyond tutorials and build a stronger foundation. 🚀 #reactjs #webdevelopment #javascript #frontend #developerjourney

Most developers meet React’s useEffect() and immediately think: "Why is this behaving so weird?" 😵💫 But the moment you understand the dependency array, everything suddenly clicks. 💡 Here’s the simple mental model that makes useEffect easy: 🔹 No dependency array useEffect(() => {}) Runs after every render. 🔹 Empty dependency array useEffect(() => {}, []) Runs only once when the component mounts. 🔹 With dependencies useEffect(() => {}, [count]) Runs every time count changes. 🔹 Cleanup function Perfect for things like timers, subscriptions, or event listeners. Example: Start a timer ⏱️ → Do something → Clean it up when the component unmounts. That small dependency array controls everything. Once you understand this concept, useEffect stops feeling confusing and starts feeling powerful. Sometimes the most confusing parts of coding are just one small concept away from clarity. 💡 Yogita Gyanani Piyush Vaswani #React #WebDevelopment #FrontendDevelopment #JavaScript #CodingTips #ReactJS

🚀 Day 21 — Understanding #React #useEffect_Lifecycle Today I deepened my understanding of one of the most powerful React hooks — useEffect. Here’s a simple breakdown of its lifecycle behavior 👇 🔹 #Mounting When a component appears for the first time 👉 useEffect runs after the initial render 🔹 #Updating When state or props change 👉 useEffect runs again (only if dependencies change) 🔹 #Unmounting When a component is removed from the DOM 👉 Cleanup function runs 💡 Key Takeaway: Managing the dependency array correctly is crucial for optimizing performance and avoiding unnecessary re-renders. 📌 #Example: useEffect(() => { console.log("Effect executed"); return () => { console.log("Cleanup executed"); }; }, [dependency]); 📈 Every day, getting closer to mastering React Hooks! #React #useEffect #FrontendDevelopment #JavaScript #WebDevelopment #LearningJourney 10000 Coders

📘What I learned about useEffect in React today One thing that confused me earlier was when useEffect actually runs. Here’s a simple breakdown: 👉 Runs after the component renders. 👉 Can be controlled using dependency array. 👉 Useful for API calls, subscriptions, side effects. 💡 Example use case: Fetching data when component loads. Key takeaway: 👉 Always understand dependencies, otherwise it may cause unnecessary re-renders. Still learning and improving every day 🚀 #reactjs #javascript #webdevelopment #learninginpublic

useEffect is one of the most misunderstood hooks in React. Most bugs I’ve seen weren’t because React is complex — they were because the mental model was wrong. Here’s a practical breakdown with real examples. Day 2/100 — sharing practical frontend engineering lessons from real-world projects. What’s the most confusing useEffect bug you’ve faced? #ReactJS #FrontendEngineering #JavaScript #WebPerformance #SoftwareArchitecture

⏱️ Built a Todo List with Timer using React Tried building a Todo List where each task has its own timer control — small idea but interesting state handling. Features: • Add todos dynamically • Start timer for each task individually • Reset timer per task • Delete tasks • Independent timer state for every item What I learned: • Managing multiple independent states in a list • Handling setInterval / timers safely in React • Avoiding memory leaks with proper cleanup • Structuring components for better state isolation • Updating UI efficiently without affecting other items This was a great exercise in understanding how to handle time-based state and side effects in React. Concept inspiration from learning resources by Akshay Saini 🚀 NamasteDev.com. Demo 👇 #ReactJS #FrontendDevelopment #JavaScript #BuildInPublic #WebDevelopment

💻 Revisiting React Fundamentals – Understanding State Today I revisited one of the core concepts of React: State management using the useState hook. To reinforce the concept, I built a small Counter component that performs different operations such as: ✔️ Increment ✔️ Decrement ✔️ Reset ✔️ Multiply by 2 ✔️ Square of a number This simple exercise helped me understand how state changes trigger UI updates in React and how event handlers like onClick interact with state. Sometimes revisiting basic concepts helps strengthen the foundation before building more complex applications. I’ve attached a short screen recording and code snippets showing how the counter works. Always learning, always improving. 🚀 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningInPublic #ReactDeveloper

What I Learned Today: Routing in React Today I learned how routing works in React and how we can navigate between different pages without reloading the browser 🔥 Key Concepts I Explored: 1. BrowserRouter – Enables routing across the entire application 2. Routes – Acts as a container for multiple routes 3. Route – Maps a specific URL path to a component 4. Navigation using useNavigate() and Link 🎯 This helped me understand how real-world applications handle navigation smoothly and efficiently. * I also implemented this in my project: * Created a Home page * Added navigation to a Weather page using React Router Learning something new every day and building step by step! #ReactJS #ReactRouter #FrontendDevelopment #WebDevelopment #JavaScript #CodingJourney #LearningInPublic #100DaysOfCode

🚀 Day 5 of Building React Projects Today I built a Quiz Application using React.js. This project displays multiple-choice questions and calculates the final score based on user answers. ✨ Features: • Multiple-choice quiz questions • Instant answer selection • Score calculation after quiz completion • Simple and responsive UI 🛠 Tech Stack: React.js JavaScript HTML CSS 🌐 Live Demo: https://lnkd.in/dgSFAWTH 💻 Source Code: https://lnkd.in/dvQyFAha #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic

🚀 Day 4 of Building React Projects Today I built a Background Changer Application using React.js. This project allows users to change the background color of the webpage dynamically with a single click. ✨ Features: • Change background color instantly • Interactive buttons for different colors • Simple and clean UI 🛠 Tech Stack: React.js JavaScript HTML CSS 🌐 Live Demo: https://lnkd.in/daCYux9G 💻 Source Code: https://lnkd.in/dEJDyd9G #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic