Introducing useActionState: Simplify React Forms

⚛️ That moment when I finally understood useCallback() 😅 While working on a React project, I had a parent component that passed a function down to a child via props. Everything looked fine — until I noticed my child component was re-rendering every time I clicked anything, even if the data didn’t change! 🤯 After a few rounds of confusion (and console logs everywhere 😆), I discovered the culprit: React was re-creating the function on every render. That’s when I met my new best friend — useCallback() 💪 Here’s how it saved me 👇 ❌ Before: function Parent() { const [count, setCount] = useState(0); const handleClick = () => console.log("Clicked!"); return <Child onClick={handleClick} />; } ✅ After using useCallback(): function Parent() { const [count, setCount] = useState(0); const handleClick = useCallback(() => console.log("Clicked!"), []); return <Child onClick={handleClick} />; } 💡 Lesson learned: useCallback() tells React: 👉 “Hey, this function is the same unless dependencies change.” No more unnecessary re-renders. 🚀 React isn’t just about writing components — it’s about learning how to make them efficient! #ReactJS #useCallback #WebDevelopment #MERNStack #FrontendDeveloper #PerformanceOptimization #LearningByDoing #JavaScript #ReactHooks

🚀 React Concepts Series — Deck 6 is live! Today we’re exploring one of the most powerful (but often underrated) React hooks: useReducer. If you’ve ever felt your state logic getting messy with too many useState calls… this hook is the upgrade you need. 💡 What you’ll learn in this deck: ➡️ What useReducer really is (interview-ready definition) It’s perfect when your next state depends on the previous one — or when state transitions start getting complex. ➡️ Reducer + Dispatch explained clearly Reducer decides the “how”, dispatch triggers the “what”. Predictable. Clean. Testable. ➡️ A practical example The counter example shows exactly why useReducer is better once your logic grows: everything is centralized and easier to maintain. ➡️ useReducer + useContext = Mini Redux This is one of the cleanest patterns for global state in small to mid-size apps. No heavy libraries required. ➡️ Interview-focused recap When to use it, why reducers must be pure, how dispatch works, and how it resembles Redux. 🧠 Why this deck matters: Understanding when to use useReducer is one of the biggest signals of maturity in React — especially in interviews. It shows you understand predictability, state flow, and scalable architecture. #ReactJS #useReducer #AdvancedReact #ContextAPI #StateManagement #FrontendDevelopment #WebDevelopment #JavaScript #ReactInterview #LearningInPublic

🪝 Understanding Custom Hooks in React — Story Time A few days ago, during a lively code review, I found myself in the hot seat: “Hey Abdul, what exactly are custom hooks in React?” someone asked. I smiled and replied, “It’s a function that uses React hooks inside it.” Everyone nodded… but I could sense a few puzzled faces. On my way home, that moment stuck with me. I realized — custom hooks aren’t just a ‘function with hooks.’ They’re a game changer for cleaner, reusable React code. Here’s what I’ve learned: - Custom hooks let you share logic (like fetching data or listening to events) without copy-pasting code everywhere - Your UI components stay focused on rendering, not managing logic - One change in the hook = instant improvement across your app Now, I always ask: If I’m repeating state logic in multiple places, should this be a custom hook? It keeps our team’s code DRY, tidy, and easier to maintain! ✅ Tried-and-true uses: fetching API data, form input handling, authentication state ❌ Skip hooks for one-off logic—simplicity always wins I unpack more stories, examples, and tips in my latest Medium post. 👉 https://lnkd.in/gn_ntBJt #React #FrontendDevelopment #WebDevelopment #JavaScript #ReactJS #CustomHooks #CleanCode #DeveloperCommunity #TechTips

If someone asks me: “What’s the use of lifting the state up in React?” I’d say - while developing applications with React, we often face scenarios where two or more components need to share the same piece of state or data. But here’s the catch - these components are siblings, not direct children of each other. And since React follows one-way data flow (from parent → child), it becomes a problem to share that same state across sibling components. That’s where the concept of lifting the state up comes in! ⚡ We simply move that state into the closest common parent component, so that the parent can manage the state and pass the required data down to its children through props. This ensures data stays consistent and synced across the UI and that’s why it’s one of the most important concepts in React. ❤️🔥 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #ReactConcepts #StateManagement #ReactHooks #FrontendEngineer #DevelopersJourney #CodingInsights #SoftwareEngineering #BuildInPublic #UIUX #TechLearning #CleanCode #ProgrammingTips

When you’re starting with React, one of the most confusing moments is when you update a state variable… and nothing changes on the screen. Here’s why 👇 React doesn’t react to value changes — it reacts to state triggers. When you call setState, React knows something changed, prepares a new “snapshot” of your data, and decides when and how to re-render efficiently. But if you change the state directly, React has no idea. It doesn’t re-render because it never got the signal. This is called immutability — React creates new versions of state instead of changing the old one. That’s how it keeps your app predictable, efficient, and bug-free. In this post, I’ve explained in plain language: ✅ How React’s state engine actually works ✅ Why direct mutation fails silently ✅ What “immutability” and “pure functions” really mean ✅ The mindset shift from “coding UI” to “managing data flow” If you’re a student or beginner learning React, this concept is a game-changer. It’s not just about syntax — it’s about understanding how React thinks. Once you get that, everything else starts to click. 💬 Share this with a friend who’s learning React — this one tip can save hours of debugging. #ReactJS #WebDevelopment #FrontendDevelopment #JavaScript #SoftwareEngineering #CollegeProjects #CareerInTech #LearnToCode #Codeviji

What a day 🫠 After spending some days with React, I finally came to understand the truth 😅. 👉 React is officially a JavaScript library, not a framework. I asked Why?🤔 Here’s the reply 👉React's main job is to handle the front part ( user interface) of a website. It doesn't directly control other things like how page change, how data is stored or how the whole project is arranged. 🤔 I asked again, So why do people like I did in my previous post think it’s a framework? Here’s the reply 👉Even though React is a library, it comes with features and patterns that makes it feel like a framework. This is because React lets you build apps using small reusable parts, it easily updates what users see when data changes and it connect extra tools like React Router and Redux. All these make it behave almost like a full framework but technically, it is still a library. 🤯 WOW! I understand now. But, what really is the meaning of LIBRARY and FRAMEWORK. Here’s what I learned:👇 LIBRARY: Gives you tools you can pick and use however you want . You control the flow of your project. FRAMEWORK: Gives you a fixed structure and controls how your project should run. It calls your code. After this knowledge, I made a little sketch to remind myself and I’m saving it here too for future reference. Learning never stops 😊 #React #JavaScript #FrontendDevelopment #WebDevelopment #CodingJourney #LearnToCode #CodeNewbie #TechLearning #CareerInTech #BuildInPublic #TechBeginners

🚀 Just built the Tic-Tac-Toe game using React (from the official docs)! This project taught me not only core React concepts but also helped me fix some tricky bugs that improved my understanding. Key Concepts I Learned 🔹 Breaking UI into reusable components (Square, Board) 🔹 Passing data & callbacks using props 🔹 Managing state with useState 🔹 Why immutability matters (slice() before updating) 🔹 Clean one-way data flow from parent → child 🔹 Writing pure helper functions like calculateWinner() 🔹 Conditional rendering for displaying game status Interesting Bugs I Fixed Along the Way 🐞 1. Wrong loop condition (lines[0].length) I mistakenly used lines[0].length instead of lines.length in the winner-checking loop. This caused the winner function to stop early and fail in some cases. Fixing it helped me understand how array-of-arrays work in JavaScript. 🐞 2. Missing <> </> fragment wrapper At one point I didn’t wrap JSX elements inside a fragment, causing compilation errors. This taught me how JSX must always return a single parent element. 🐞 3. Infinite re-render confusion I learned the difference between: ✔ passing a function → onClick={() => handleClick(0)} ✘ calling a function during render → onClick={handleClick(0)} Understanding this removed my confusion about unnecessary re-renders. Overall Takeaway This small project helped me understand how React really works: state updates trigger re-renders, JSX must be well-structured, and immutability + pure functions make the UI predictable. Excited to keep building more projects! ⚡ #react #javascript #webdevelopment #frontenddevelopment #reactjs #learninginpublic #codingjourney #softwareengineering #programming #developers #100daysofcode #projectbasedlearning #webdev

🧩  Clean component patterns — what I learned refactoring a real React app Last week I revisited an old React project I built a year ago. And… wow. I didn’t realize how much my thinking had changed since then. Here are 3 lessons that helped me write cleaner, more scalable components 👇 1️⃣ Components should communicate, not know If your component needs to “know” too much about its parent, it’s probably doing too much. 👉 Make data flow down, and events bubble up. 2️⃣ Hooks > utils Whenever I find myself writing utility functions to handle UI logic, I try to move them into custom hooks. They’re easier to reuse, test, and compose. 3️⃣ Composition over configuration Stop passing endless props like isPrimary, isDanger, isDisabled. Instead, compose your components: <Button variant="primary">Save</Button> It reads better and scales better. ✨ Clean code isn’t about writing less code — it’s about writing code that explains itself. 💬 What’s the biggest lesson you’ve learned from refactoring your own React code? #React #Frontend #CleanCode #WebDevelopment #JavaScript #DevCommunity #Refactoring

🧩  Clean component patterns — what I learned refactoring a real React app Last week I revisited an old React project I built a year ago. And… wow. I didn’t realize how much my thinking had changed since then. Here are 3 lessons that helped me write cleaner, more scalable components 👇 1️⃣ Components should communicate, not know If your component needs to “know” too much about its parent, it’s probably doing too much. 👉 Make data flow down, and events bubble up. 2️⃣ Hooks > utils Whenever I find myself writing utility functions to handle UI logic, I try to move them into custom hooks. They’re easier to reuse, test, and compose. 3️⃣ Composition over configuration Stop passing endless props like isPrimary, isDanger, isDisabled. Instead, compose your components: <Button variant="primary">Save</Button> It reads better and scales better. ✨ Clean code isn’t about writing less code — it’s about writing code that explains itself. 💬 What’s the biggest lesson you’ve learned from refactoring your own React code? #React #Frontend #CleanCode #WebDevelopment #JavaScript #DevCommunity #Refactoring

Are you ready to level up your React skills? The recent introduction of the `use()` feature in React 19 has been a game changer for me. I had a situation in a project where managing state updates was becoming a labyrinth of logic and complexity. I was pulling my hair out trying to optimize rendering and manage state transitions gracefully. Then, I stumbled upon `use()`, which transformed how I think about data fetching and updates in my components. Instead of writing nested code, I can now use declarative structures that are much more readable. Think of functional updates as a way to simplify complicated component interactions, reduce bugs, and enhance performance. It's a little like upgrading from a regular bicycle to an electric one—suddenly, everything feels more effortless. I’m still wrapping my head around all its capabilities, but I’ve already seen improvements in my team’s workflow, especially in how we handle asynchronous data. The refactoring took a bit of time, but adopting `use()` was well worth it. Let’s embrace this feature together and share strategies. What experience have you had with `use()`? #ReactJS #JavaScript #WebDevelopment #Programming #SoftwareEngineering #useHook #StateManagement #FrontendDevelopment #TechTrends #FutureOfWork