React Hooks Explained: useState & useEffect

🚀 Built a Simple React Form with Controlled Components Today I practiced building a simple form in React using useState and a single handleChange function. 🔹 Managed multiple inputs (text + checkbox) using one state object 🔹 Used dynamic updates with name attribute 🔹 Handled checkbox with checked and other inputs with value 🔹 Implemented form submission using preventDefault() 🔹 Reset form fields after submission 💡 Key takeaway: “Use one state and one function to manage the entire form efficiently.” This helped me better understand how React handles form data and state updates in a clean and scalable way. #ReactJS #WebDevelopment #Frontend #JavaScript #Learning #CodingJourney

Starting My React.js Journey – Basics with Code! Today, I revisited the fundamentals of React.js, and I believe mastering the basics is the key to building powerful applications. Sharing a quick snippet that demonstrates how simple and clean React can be import React from "react"; function Welcome() { const name = "Developer"; return ( <div> <h1>Hello, {name} </h1> <p>Welcome to React Basics!</p> </div> ); } export default Welcome; What this covers: - Functional Components - JSX (JavaScript + HTML) - Dynamic Data Rendering using variables Key Learning: React is not just a library — it's a mindset of building reusable and maintainable UI components. Next Steps: - Props & State - Event Handling - Component Lifecycle Consistency beats intensity. Small steps every day = Big growth #ReactJS #WebDevelopment #JavaScript #Frontend #CodingJourney #100DaysOfCode

you called setState twice. expected +2. got +1. both calls read the same stale count from the current render. they don't compound. they both say "set to 1." welcome to React. why it breaks: state updates don't happen immediately. they're scheduled. so count is still 0 inside your function no matter how many times you call setState. both calls read 0. both set to 1. result: 1. the Fix: use functional updates. each call gets the previous result and builds on it. The code : #reactjs #javascript #webdevelopment #buildinpublic #typescript

The Great Debate: Formik or React Hook Form?  Both are industry favorites, but they offer two very different approaches to handling forms in React. While one is praised for its stability and ease of use, the other is the go-to for performance and minimal re-renders. Most developers have a strong preference, but is there really a "winner"? Which one is currently in your tech stack, and why did you choose it over the other? 👇   #ReactJS #FrontendDevelopment #WebPerformance #ProgrammingTips #Javascript

How to prevent unnecessary re-renders in React ⚛️ After understanding why components re-render, the next step is learning how to control unnecessary ones. ⸻ 🔹 React.memo It helps prevent a component from re-rendering when its props haven’t changed. ⸻ 💡 Why it matters: Unnecessary re-renders can affect performance, especially in larger or complex components. ⸻ 🧠 Simple understanding: Same props → no re-render Changed props → re-render ⸻ ⚠️ Important: React.memo is useful, but should be used only when needed. ⸻ Small optimizations can make a big difference ⚡ #ReactJS #FrontendDevelopment #JavaScript #ReactHooks #Performance #LearningInPublic

One small React habit that improved my code a lot: Stop putting everything in one component. Earlier, I used to write large components with too much logic. It worked… but became messy very quickly. Now I try to: • Break UI into smaller components • Keep logic separate • Reuse components wherever possible This makes the code cleaner and easier to scale. If you're learning React, start thinking in components, not pages. #reactjs #frontend #webdevelopment #javascript

React confused me today… for a simple .push() 😅 I was updating an array in state and did this: items.push(newItem) setItems(items) Pretty normal JavaScript, right? But the UI didn’t update. That’s where I got stuck. Then I realized what was actually happening. Arrays in JavaScript are stored by reference. So .push() doesn’t create a new array — it just modifies the existing one. React compared the old state and new state… and saw the same reference. So it thought: “Nothing changed.” 💡 The way I understand it now: Using .push() → same box 📦 Using spread → new box 📦✨ React only reacts when the box changes, not just what’s inside it. So the correct way: setItems(prevItems => [...prevItems, newItem]) Small thing, but it cleared up a lot for me. One more step forward 🚀 #ReactJS #JavaScript #Frontend #LearningInPublic

✨ Master JavaScript Array Destructuring for Cleaner Code Modern JavaScript lets you extract values in one line—making your code shorter, clearer, and easier to maintain. 🧠 Why it matters: Readable code = fewer bugs + faster development. ⚛️ If you’re using React, you’re already using destructuring (useState, useReducer). #JavaScript #FrontendDevelopment #WebDevelopment #ReactJS #CleanCode #ModernJS #SoftwareEngineering

🚨 I see developers jumping straight into React and Next.js — and struggling to debug the simplest bugs. Here's the uncomfortable truth: 👉 React is just JavaScript. 👉 Next.js is just JavaScript. 👉 Every framework you'll ever use... is just JavaScript. If your JS fundamentals are weak, you're building on sand. 🏚️ Here's what actually happens when you skip the basics: ❌ You copy-paste code without understanding it ❌ You can't debug — only Google ❌ Every new framework feels like starting from zero But when you master JS fundamentals first: ✅ Closures → you understand React hooks ✅ Event loop → you understand async/await & API calls ✅ Prototypes → you understand how JS objects really work ✅ Array methods → you write cleaner, readable React components Frameworks come and go. JavaScript stays. Invest time in the fundamentals. Your future self — and your teammates — will thank you. 🙌 ───────────────── 💬 Drop a comment: What JS concept clicked everything into place for you? #JavaScript #WebDevelopment #React #NextJS #Frontend #100DaysOfCode

🚀 Day 7 of Building React Projects Today I built a Weather Application using React.js. This project allows users to search for any city and view the current weather information using a weather API. ✨ Features: • Search weather by city name • Display temperature and weather condition • Shows weather icon • Simple and responsive UI • Real-time data using API 🛠 Tech Stack: React.js JavaScript HTML CSS Weather API 💻 Source Code: https://lnkd.in/dasKibUN #ReactJS #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic