React Hook Form Simplifies Form Handling in React

Frontend apps don’t break suddenly, they decay through small decisions. In this carousel, I share why React codebases become hard to maintain and what actually helped me fix them in real projects. If you’ve ever seen a file no one wants to touch, this will feel familiar. What was the first sign your codebase was getting messy? #ReactJS #FrontendDevelopment #JavaScript #SoftwareEngineering #WebDevelopment #FrontendArchitecture #DeveloperExperience

Sometimes, handwritten notes explain concepts better than any tutorial. I’ve compiled and revised my React handwritten notes, starting from absolute fundamentals and gradually moving toward real-world, production-ready concepts, including: • Why React is a library (not a framework) • React vs plain JavaScript DOM manipulation • React.createElement() vs JSX • Props, attributes, and children • How React renders and replaces the DOM • Why JSX simplifies development • Bundlers (Parcel, Webpack) and why they matter • package.json, package-lock.json, and node_modules • NPM, dependencies, and transitive dependencies • Hot Module Reloading (HMR) • Development vs production builds • Tree shaking, minification, and optimization • Browser compatibility with browserslist • How React apps become production-ready These notes helped me understand what actually happens behind the scenes in a React app, not just how to write code. Sharing this as part of my React learning and interview preparation journey. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #InterviewPreparation #LearningJourney #ReactNotes

This visual perfectly represents how React Hooks work together inside a React application. At the center is ReactJS, acting as the core engine. Around it, each hook plays a specific role, just like interconnected pipelines in a system: • useState – Manages component-level state and triggers UI updates • useRef – Stores mutable values and DOM references without causing re-renders • useContext – Enables global state sharing through a Context Provider • useEffect – Handles side effects such as API calls, subscriptions, and lifecycle logic • useReducer – Manages complex state logic in a predictable, scalable way • useCallback – Optimizes performance by memoizing functions • useLayoutEffect – Runs synchronously after DOM mutations to ensure stable UI rendering The pipes in the image symbolize data flow, state updates, and performance optimization, showing how hooks communicate and maintain a smooth rendering lifecycle. This is a great mental model for understanding why hooks exist and when to use each one while building scalable, high-performance React applications. If you’re learning or working with React, mastering these hooks is non-negotiable. #ReactJS #ReactHooks #FrontendDevelopment #WebDevelopment #JavaScript #SoftwareEngineering

This surprised me when I first learned React: JSX is not a feature of the browser. And it’s not magic either. Every JSX element you write eventually becomes a React.createElement() call. That’s the whole relationship. JSX is just a 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗳𝗿𝗶𝗲𝗻𝗱𝗹𝘆 𝘀𝘆𝗻𝘁𝗮𝘅. React.createElement() is what React actually understands. When you write JSX, you’re optimizing 𝗿𝗲𝗮𝗱𝗮𝗯𝗶𝗹𝗶𝘁𝘆. When React runs your code, it only sees 𝗽𝗹𝗮𝗶𝗻 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 𝗼𝗯𝗷𝗲𝗰𝘁𝘀. Understanding this changed how I debugged React apps. Errors stopped feeling 𝗺𝘆𝘀𝘁𝗲𝗿𝗶𝗼𝘂𝘀. Components felt less magical and more predictable. JSX makes React pleasant to write. createElement makes it possible to run. Different layers. Same outcome. #React #JavaScript #FrontendEngineering #SoftwareDesign

Frontend Devs: “Why is my app slow?” 🤔 JavaScript Engine: Bro… you changed one object shape and I had to → de-opt → re-opt → fall back → rethink my life choices 😭 Your React state isn’t “just state”. It decides whether V8 uses: ✔️ Monomorphic (fast) ❌ Megamorphic (pain) Made a tiny slide deck explaining this chaos — JS compilation → Inline Caches → React optimization 🔥 #react #optimise

Ever had this moment as a frontend engineer? 😅 You’re working across multiple apps and realize: App 1 already has the component you need App 2 now has a “slightly different” version of the same thing …and suddenly duplication becomes the default. I wrote a short Medium walkthrough on how Module Federation helps here: ✅ one app exposes a component ✅ another app loads it at runtime ✅ teams can ship independently without copy-paste or constantly republishing shared packages If you’re using Vite + React + TypeScript, I included a simple setup + example repo. https://lnkd.in/dkBEvA3V #frontend #reactjs #vite #typescript #modulefederation #webdevelopment #microfrontends

So, you're building an app in React. It's all about the components. But, how do they talk to each other? That's the million-dollar question. They need a way to share data, right? That's where Props come in - it's like passing arguments to a function. Simple. Props are key: they make components dynamic, reusable, and clean. You need them to share data, make components reusable, avoid hardcoding values, and keep things modular. In React, a parent component can pass data to a child component using Props - and the child component receives this data, no questions asked. It's read-only, though: a child component can't just modify Props willy-nilly. But, you can use destructuring with Props to make your code way cleaner and more readable - like this: function User({ name, role })... it's just better that way. And, let's be real, who doesn't love clean code? Check out this source for more info: https://lnkd.in/g-s7f_8a #React #JavaScript #WebDevelopment

If you are building a React app in 2026 without TypeScript, you are building legacy code. 🚩 I often get asked: "Should I use JavaScript or TypeScript?" The answer used to be "it depends." Now, the answer is "TypeScript." Here is the reality check: JavaScript is fun. It’s fast. It’s flexible. But it’s also the "Wild West." 🤠 TypeScript is your insurance policy. ✅ It catches 15% of bugs before you even run the app. ✅ It acts as "self-documentation" for your team. ✅ It makes refactoring large codebases actually possible without breaking everything. The Golden Rule: 👉 Learning React? Stick to JavaScript. Focus on the concepts first. 👉 Building a Product? Use TypeScript. Your future self (and your team) will thank you. Stop fighting the compiler. Start letting it help you. . . . . . . . . . . . . . . . #ReactJS #TypeScript #JavaScript #WebDevelopment #SoftwareEngineering #CodingBestPractices #TechTrends2026

Rails 8 continues the philosophy of convention over complexity. With Turbo Streams, you can build reactive UIs without drowning in JavaScript. If you’re a Rails developer aiming for speed, maintainability, and clarity — this is a must-use feature. How are you using Turbo in your Rails apps?

DAY 4 | WHY DOES REACT BREAK THE UI INTO COMPONENTS? 🧩 Earlier, the whole page was written as one big block. One small change → risk of breaking something else. React changed this idea. React says: 👉 break the UI into small, independent pieces. Each piece: 🔹 has its own logic 🔹 handles its own UI 🔹 doesn’t disturb others So instead of fixing a whole page, you fix only the part that matters. That’s why React apps are built with components, not pages. #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearnInPublic #CodingJourney #SoftwareEngineering