React vs DevDependencies in package.json

🚀 *Day 24 - Project 100/24 ReactJS ⚛️* yet useful Sticky Notes App using just useState in React You can easily add and delete notes with smooth UI interaction. This project helped reinforce state management and list rendering. The layout is clean and responsive using Tailwind CSS. No backend, no database — just pure frontend magic! ✨ Every note is editable and disposable. Great practice for beginners learning React state handling. Stay productive — one sticky note at a time 💬 Comment “Repo” if you'd like the GitHub link! #ReactJS #100DaysOfCode #Frontend #StickyNotes #WebDevelopment #JavaScript #DevCommunity #CodeNewbie #useState #TailwindCSS #WebDevelopment #LoginSystem #FrontendDevelopment #WebDev #JavaScript #reactjsdeveloper #developer #bootstrap #webdevelopment #programming #frontenddeveloper #codingtips #javascript #100DaysOfReactProjects #100DaysOfCode #nextjs #nodejs #mernstack #MERN

Comprehensive React js Study Guide 📚 I'm excited to share my latest React js notes! I’ve spent time documenting the "Inception" of a React app all the way to "Finding the Path" with Dynamic Routing and Testing. What’s inside? ✅ Architecture: Monolithic vs. Microservices. ✅ Bundlers: Why we use Parcel and NPM vs. NPX. ✅ Optimization: Shimmer UI, Suspense, and the Single Responsibility Principle. ✅ Testing: How to mock API calls and fire events in JSDOM. Feel free to save, download, and share this with your fellow developers. Let’s keep learning together! 🚀 #React #JavaScript #Programming #FrontEndDevelopment #SoftwareEngineering #ReactNotes #DeveloperResources

Day 29/30 — "Learning React JS From Scratch 🚀" Today I learned how to optimize performance in React applications using Debouncing and Throttling — two powerful techniques to control how often a function executes. ✅ Debouncing Runs a function only after the user stops performing an action. Perfect for search inputs, form validation, and autosave features. ✔ Reduces unnecessary API calls ✔ Improves performance ✔ Saves server load ✅ Throttling Runs a function at fixed time intervals, even if the event happens many times. Ideal for scroll events, resize handlers, and mouse movements. ✔ Controls event frequency ✔ Keeps UI smooth ✔ Prevents browser overload 🎯 Key takeaway: Debouncing waits for the action to stop. Throttling limits how often the action runs. These techniques help build faster, more efficient, and scalable React applications. #ReactJS #JavaScript #WebDevelopment #FrontendDevelopment #PerformanceOptimization #LearningInPublic #DeveloperJourney #Programming #TechLearning #Trending #Growth #Consistency #BuildinPublic

🚀 React JS Essentials: State, Props & Components! 🔹 State vs Props Props (Properties): ->Passed from parent to child. ->Immutable – cannot be changed by the child. ->Used to pass data and event handlers. State: ->Managed within the component. ->Mutable – can be updated with setState / useState. ->Stores dynamic data affecting component rendering. 💡 In short: Props = read-only inputs, State = local, changeable data. 🔹 Controlled vs Uncontrolled Components Controlled Components: ->React manages the value via state. ->Updates via onChange handlers. ->Easy to validate and control form data. Uncontrolled Components: ->DOM manages its own value. ->Accessed using refs. ->Less code, but harder to control and validate. 💡 In short: Controlled = React manages it, Uncontrolled = DOM manages it. 💻 Pro Tip: Understanding these fundamentals is key to building scalable React apps! #ReactJS #WebDevelopment #FrontendDevelopment #JavaScript #CodingTips #ReactTips #DeveloperLife #Programming #TechInsights #StateVsProps #ControlledVsUncontrolled

NestJS and ExpressJS are popular Node.js backend frameworks used to build APIs and web applications. ExpressJS is lightweight, flexible, and best for small to medium projects with fast development needs. NestJS is a powerful, structured framework ideal for large and scalable applications. Both support JavaScript, but NestJS is mainly built for TypeScript with advanced features. Choose ExpressJS for simplicity and NestJS for professional, enterprise-level solutions. #NestJS #ExpressJS #NodeJS #BackendDevelopment #WebDevelopment #JavaScript #TypeScript #APIs #FullStackDeveloper #Programming

Handling Side Effects in React (useEffect) — Before & After While learning React, I faced a common side-effect issue. Calling a function directly inside a component makes it run on every re-render — even when clicking an unrelated button. This leads to unnecessary executions. 🟥 Before callOnce() was triggered on every render (Counter + Data). 🟩 After Using useEffect with a dependency array, the function now runs only when count changes. 💡 This is how useEffect helps us control side effects in React. Learning React step by step ⚛️ 🔗 Full explanation with code on Hashnode: 👉 https://lnkd.in/g8RfZ8J7 #ReactJS #useEffect #JavaScript #FrontendDeveloper #WebDevelopment #ReactHooks #CodingLife #LearnReact #DeveloperCommunity #100DaysOfCode #TechJourney #DevTips

💡 React Core Concepts – Simplified If you’re starting your React journey, understanding the core fundamentals is extremely important. Concepts may look simple on the surface, but they play a huge role in building scalable and maintainable applications 👇 ✅ Components → Reusable building blocks of the UI ✅ State → Manages dynamic data within a component ✅ Props → Passes data from parent to child components ✅ Hooks → Add state and lifecycle logic to functional components ✅ Virtual DOM → Improves performance by updating only what’s needed In this document, I’ve broken down: • Core React fundamentals • How these concepts work in real-world applications • Why they matter for performance and scalability 📘 A must-read for anyone learning or revising React basics. 👉 Which React concept confused you the most when you started? Drop it in the comments 👇 #ReactJS #FrontendDevelopment #WebDevelopment #JavaScript #LearningReact #ReactDevelopers #Programming #TechTips #UIDevelopment Genufy TechWorks

🚨 Common Pitfall 👉 Placing hooks inside conditional blocks may seem to work at first, but it can introduce subtle, hard-to-trace bugs. (See image 👇) 🔷 Many React issues happen when core rules are broken without realizing it. ⛔ When loggedIn changes, the hook execution order is altered. ✅ Hooks should always execute in a consistent order to keep logic reliable. Conditional hooks might look safe, but changing conditions can lead to state mismatches and unexpected behavior. By keeping hooks at the top level and moving conditional logic inside the hook, your components remain stable and much easier to understand. This small habit can save hours of debugging in real-world production apps. 📌 Key Takeaways 🔁 Hooks must always run in the same order 🧩 Put conditions inside the hook, not around it 🛡️ Avoid unpredictable state issues 🏗️ A must-follow practice for every React developer #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #SoftwareEngineering #CleanCode #BestPractices #DeveloperTips #Programming #TechCareers

STOP telling beginners to jump straight into React. It’s actually the worst advice for aspiring developers in 2025-2026. When I started my journey in Web Development, everyone told me to focus on modern frameworks. So I did. I spent months grinding tutorials. And guess what? I got nowhere. I was stuck in "tutorial hell." I could copy the syntax, but I couldn't write the logic. Here is the hard truth: React is just a tool. The real skill is Vanilla JavaScript. If you don't understand the DOM, map, filter, and how state works natively, hooks will just confuse you. Once I shifted my focus back to core JS concepts, everything changed: I started building custom projects without watching a video first. I understood why the code works, not just how to type it. Debugging became logical, not a guessing game. Frameworks change. The fundamentals stay the same. To the seniors in my network: Did you learn a framework first, or did you grind the basics? Let’s settle this in the comments. 👇 #WebDevelopment #ReactJS #JavaScript #Coding #MERNStack

🚀 Stop Googling React Concepts Again & Again! Here’s a complete React JS Cheat Sheet that every frontend / MERN developer should save 🔥 I’m sharing a React Cheat Sheet PDF that covers everything from basics to advanced concepts in one place 👇 📌 What’s inside this React Cheat Sheet? ✅ React Fundamentals & Virtual DOM ✅ JSX, Components & Props ✅ State Management (useState, lifting state) ✅ Hooks (useEffect, useRef, useContext, useReducer, custom hooks) ✅ Conditional Rendering & Lists ✅ Forms & Event Handling ✅ React Router v6+ ✅ Context API, Redux, Zustand ✅ Styling (CSS, Tailwind, Styled Components) ✅ Performance Optimization & Best Practices ✅ Testing, Deployment & Mini Practice Tasks 💡 Why this cheat sheet is useful? Perfect for beginners starting React Super helpful for interview preparation Quick revision guide for daily development One PDF → no confusion, no scattered resources 📥 I personally use this kind of structured notes while learning and revising React, and it really saves time. 👉 Save this post, go through the PDF, and let me know: Which React concept confused you the most when you started? #ReactJS #FrontendDevelopment #MERNStack #WebDevelopment #JavaScript #ReactHooks #LearningInPublic #RoadToReact #Developers #Programming #CheatSheet #development