When to use useCallback in React

💡 Lesson Learned Today: While working on implementing search functionality in a React + Redux application, I faced an issue where the search input was updating correctly… but the results were not filtered at all 🤔 After debugging, I discovered an important insight: 👉 Not every “search issue” comes from the frontend. ✔️ The request was being sent correctly ✔️ The search parameter was included in the API call ❌ But the backend endpoint didn’t support filtering with that parameter 🔍 What I learned: Always verify: Is the correct parameter name being sent? Is the backend actually using it? Check the Network tab before assuming the issue 🚀 Sometimes the best debugging skill is knowing where the problem is NOT. #FrontendDevelopment #React #Redux #Debugging #WebDevelopment #LearningJourney

🚀 Day 977 of #1000DaysOfCode ✨ New Hooks in React 19 You Should Know React 19 is bringing some powerful changes — especially when it comes to how we manage state and async logic. In today’s post, I’ve covered the new hooks introduced in React 19 and how they simplify common patterns that previously required extra code or libraries. From better handling of async actions to improved form management and smoother UI updates, these hooks are designed to reduce boilerplate and make your code more intuitive. What’s exciting is that these are not just new APIs — they actually change how you think about building React applications. I’ve explained them in a simple and practical way so you can start using them without confusion. If you’re working with React or planning to upgrade, understanding these hooks will give you a clear advantage. 👇 Which new React 19 hook are you most excited to try? #Day977 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #ReactJS

I spent 3 hours fixing a React bug yesterday. The issue wasn’t complex. My approach was. Earlier, whenever something broke in my app, I used to: ❌ randomly change code ❌ refresh again and again ❌ search Stack Overflow immediately Now I follow a simple process: ✅ check component re-renders ✅ inspect props and state flow ✅ verify API response structure ✅ use console logs step-by-step And honestly, debugging became much faster. One thing I’m learning as a developer: Writing code is important. But understanding why code breaks is what actually improves your skills. Curious to know — what’s the toughest bug you fixed recently? #ReactJS #WebDevelopment #JavaScript #FrontendDevelopment #CodingJourney #FullStackDeveloper #MERN

⚛️ Common React Mistakes That Are Killing Your Performance 💀 You think your React code is fine… . But these small mistakes are silently breaking your app 👀 Here’s what most developers still do wrong 👇 . ❌ Mutating state directly React won’t re-render properly (page 2)  ❌ Using index as key Leads to weird UI bugs when list updates (page 3)  ❌ Too much global state Unnecessary re-renders & messy logic (page 4)  ❌ useEffect misuse Missing dependency array = infinite loop 🔁 (page 5)  ❌ Storing derived state You’re duplicating logic for no reason (page 6)  ❌ Too many re-renders New objects/functions every render = performance drop (page 7)  ❌ Ignoring loading & error states Your UI breaks when API fails (page 8)  ❌ Poor folder structure Good code needs good organization (page 9)  . 🔥 React isn’t hard… Bad practices make it hard 💬 Clean code = scalable apps 📌 Save this before your next project . More Details Visit: https://lnkd.in/gRVwXCtq Call: 9985396677 | info@ashokit.in. . #ReactJS #Frontend #WebDevelopment #JavaScript #Coding #Developers #Programming #SoftwareEngineering

🚀 React Series - Day 9 Handling Forms in React (Controlled + Modern Approach) Forms are a core part of almost every application - login pages, registrations, search, and more. In React, forms are typically handled using a controlled approach. This means: • Form data is stored in state • Inputs are controlled by that state • Changes are handled using events like onChange This gives full control over user input and makes validation easier. However, as forms grow more complex, managing state manually can become repetitive and harder to scale. That’s why many developers use modern solutions like React Hook Form. It provides: • Better performance (fewer re-renders) • Easy validation • Cleaner and less repetitive code 👉 The idea is simple: Start with controlled components to understand the basics, then use tools like React Hook Form to handle real-world, complex forms efficiently. #reactjs #javascript #frontenddeveloper #webdevelopment #codinginterview #learnreact #30daysofcode #programming #reactinterview #react #coding

React is finally getting a built-in useForm hook… and it’s a big shift Right now, every project: 🔹 Formik 🔹 React Hook Form 🔹 Zod + custom logic More setup. More dependencies. More bundle size. Now React is bringing it into core 🔹 Validation 🔹 Form state 🔹 Submission 🔹 Error handling All built-in. No extra libraries. We’ve seen this pattern before: → Data fetching → now simpler patterns → Routing → built into frameworks → Memoization → handled by React Compiler React continues to absorb what we used to depend on. That’s not a problem - that’s growth What this means now: 🔹 Don’t over-engineer forms 🔹 Keep it simple 🔹 Focus on fundamentals (controlled vs uncontrolled) Libraries change. Basics don’t. Still using Formik or React Hook Form? 👇 #ReactJS #WebDevelopment #FullStackDeveloper #Frontend #JavaScript

State Management in React: Redux vs. Context API in 2026 In 2026, Redux suits large apps needing scalability and control, while Context API is ideal for simpler state management. Developers often combine both for performance, flexibility, and cleaner architecture in React applications. For a deeper dive, check out the complete blog on our website. https://lnkd.in/dc_sdxc4 #React #ReactJS #StateManagement #Redux #ContextAPI #React2026 #ReduxToolkit #WebDevelopment #FrontendDev #JavaScript #CodingTips #LearnReact #ReactDevelopers #TechBlog #ProgrammingTutorial

Just dove into the new React Compiler and my entire memoization game is busted. 🤯 Turns out, I was over-optimizing the wrong things, leading to more overhead than actual gains. It's a humbling but incredibly valuable lesson. Here's what the compiler exposed about my old habits:  • 𝗢𝘃𝗲𝗿-𝗿𝗲𝗹𝗶𝗮𝗻𝗰𝗲 𝗼𝗻 `𝘂𝘀𝗲𝗠𝗲𝗺𝗼`: I was wrapping everything, even simple props, just in case. The compiler handles many of these automatically.  • 𝗠𝗲𝗺𝗼𝗶𝘇𝗶𝗻𝗴 𝗱𝗲𝗿𝗶𝘃𝗲𝗱 𝘀𝘁𝗮𝘁𝗲: Complex calculations are still prime candidates, but basic derivations often don't need the extra `useMemo` layer.  • 𝗖𝗼𝗻𝘁𝗲𝘅𝘁 𝗔𝗣𝗜 𝗺𝗶𝘀𝘂𝘀𝗲: Memoizing context values unnecessarily was a performance drain I didn't see coming. The compiler's automatic memoization is smarter than I gave it credit for. It intelligently skips re-renders for stable values, meaning our manual `useMemo` calls were often redundant and even detrimental. It's a paradigm shift. Embrace the compiler; it might just fix your performance issues without you lifting a finger. Save this post if you're also rethinking your memoization strategy. Follow for more real-world tech insights and practical dev tips. #React #JavaScript #WebDevelopment #Frontend

🚀Day 2/200-Exploring Node.js Processes & Environment Variables Today I worked on understanding how parent and child processes behave in Node.js. 🔹 What I learned: A child process is a completely separate process, not a thread fork() creates a new Node process and runs the file automatically By default, environment variables are inherited from parent → child We can also inject custom env variables into the child process 🔹 Experiment: I created a custom variable (MY_VAR) that: ❌ Does not exist in the parent ✅ Exists only in the child process 🔹 Key Insight: Environment variables are process-specific, not global 🔹 Challenges I faced: Tried accessing process.env in the terminal (wrong context ❌) Confused between terminal vs Node runtime Debugging child process separately from parent 🔹 Solution: Used console.log and debugger inside child.js Understood the difference between system env vs process env 💡 This helped me clearly understand how Node.js handles processes internally. #NodeJS #BackendDevelopment #JavaScript #LearningInPublic #Debugging #WebDevelopment

Most React devs use hooks daily… But a lot of us are using them wrong (or at least inefficiently). Here are 5 React Hooks you're probably misusing 👇 1. useEffect: Doing too much If your useEffect looks like a mini backend service… that’s a red flag. 👉 Keep it focused: one responsibility per effect. 👉 Avoid unnecessary dependencies (or missing ones 😬). 2. useState: Over-fragmenting state Multiple useState calls for tightly related data = messy logic. 👉 Consider grouping related state into one object 👉 Or use useReducer for complex flows 3. useMemo: Premature optimization Not everything needs memoization. 👉 If your calculation is cheap, skip it 👉 Overusing useMemo can hurt readability more than it helps performance 4. useCallback: Blind usage Wrapping every function in useCallback ≠ optimization 👉 Only use it when passing functions to memoized components 👉 Otherwise, you're just adding complexity 5. useRef: Misunderstood power It’s not just for DOM access 👉 Great for persisting values without re-renders 👉 Perfect for timers, previous values, or mutable variables 💡 Rule of thumb: If you can’t clearly explain why you're using a hook… you probably don’t need it. What’s a hook mistake you’ve made (or still make)? 😄 #React #WebDevelopment #Frontend #JavaScript #Programming #CodingTips