React 19.2 Activity Component Tutorial

Most of this was built in a coffee house, which means.. I was literally waving my hands in the air like a crazy person the whole time, getting very interesting looks from people around me 😌 Anyway, this is what it turned into: My “Air Canvas” ✨ A small experiment turning hand tracking into a drawing interface, built with React JS and TypeScript. Try it out here: https://lnkd.in/dz5r6-zS #coding #frontend #javascript #womenintech #webdevelopment #creativecoding #softwareengineering #buildinpublic

⚛️ React Components Explained In React, everything is built using components. There are two types: • Functional Components – simple, modern, and use Hooks • Class Components – older, more complex, and less used today 👉 Today, developers prefer Functional Components for clean and scalable code. Are you using functional components in your projects? #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #Coding

🚀 No JSX? No Problem! Most React developers write JSX every day — but do you know  what's actually happening under the hood? Every line of JSX you write gets compiled into  React.createElement() calls by Babel. So instead of this 👇 const element = <h1 className="title">Hello World</h1>; React actually runs this 👇 const element = React.createElement(  'h1',  { className: 'title' },  'Hello World' ); 🤯 Mind blown? It gets even more interesting with NESTED elements! In my latest YouTube video, I break down exactly: ✅ How React.createElement() works ✅ How to build nested elements WITHOUT JSX ✅ Why understanding this makes you write better React code ✅ What JSX is really doing behind the scenes 💡 Most developers skip this fundamental concept — but the ones  who understand it debug faster, think clearer, and write  more confident React code. 🎯 Whether you're a beginner or intermediate React developer,  this is the one concept that will change how you see JSX forever. 👇 Watch the full video here: 🔗 https://lnkd.in/g4ycpcXn If you found this useful, ♻️ repost to help other React  developers level up! #ReactJS #JavaScript #JSX #WebDevelopment #Frontend  #React18 #LearnReact #Programming #SoftwareDevelopment  #ReactTutorial #CodeNewbie #100DaysOfCode

React Compiler — What It Changes for You React Compiler auto-memoizes your components. You can delete most of your useMemo calls. It's a build-time tool that handles memoization for you — already running in production at Meta with measurable wins on loads, navigations, and interactions. What it does: • Auto-memoizes components & hooks at build time • Kills most useMemo, useCallback, React.memo • Works with Vite, Next.js, Babel, SWC One catch: your code must follow the Rules of React. The ESLint plugin will flag violations — fix those first. New projects → turn it on. Existing projects → adopt directory by directory. Follow for more React & Next.js breakdowns. #React #ReactCompiler #NextJS #Frontend #WebDevelopment #JavaScript #SoftwareEngineering

This is where React actually starts making sense… At first, everything looks confusing — but then you learn Props & State, and suddenly… things click. ⚡ Props are how your components communicate. They pass data from parent to child — clean and predictable. State is what makes your app alive. It controls changes, updates UI, and handles user actions. 👉 Props = Data coming in 👉 State = Data changing inside Master these two… and you move from writing static pages to building interactive, real-world applications. Most beginners skip deep understanding here — and that’s exactly why they get stuck later. Don’t just learn React… understand how it thinks. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #CodingJourney #LearnToCode #DevelopersLife #UIEngineering #ReactBasics #TechSkills

🚀 React Hooks: From Beginner to Advanced Hooks changed the way we build React apps by making code cleaner, reusable, and easier to manage. From useState for managing state, to useEffect for side effects, useRef for persistent values, and advanced hooks like useMemo, useCallback, and useReducer — mastering hooks is a game changer for every frontend developer. 💡 Key lessons: ✅ Reuse logic with custom hooks ✅ Think in data flow ✅ Optimize only when needed ✅ Keep building real projects The more you practice hooks, the more natural React development becomes. What’s your favorite React Hook and why? 👇 #React #JavaScript #WebDevelopment #Frontend #Programming #ReactJS #Coding #SoftwareDevelopment #100DaysOfCode

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React, 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀 𝗱𝗲𝗳𝗶𝗻𝗲𝗱 𝗶𝗻𝘀𝗶𝗱𝗲 𝗰𝗼𝗺𝗽𝗼𝗻𝗲𝗻𝘁𝘀 𝗮𝗿𝗲 𝗿𝗲𝗰𝗿𝗲𝗮𝘁𝗲𝗱 𝗼𝗻 𝗲𝘃𝗲𝗿𝘆 𝗿𝗲𝗻𝗱𝗲𝗿. This means passing them as props can trigger unnecessary re-renders in child components. 🔧 𝗕𝗲𝘀𝘁 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗲: - Use "useCallback" to memoize functions when passing them down - Only do this when necessary (e.g., with "React.memo" or dependency arrays) Not every function needs memoization—but knowing when it matters is key. #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #PerformanceOptimization #SoftwareEngineering #CodingTips #FullstackDeveloper

🚀 Breaking Down a Basic React Component – Super Simple! 🧩 Ever wondered how React components actually work? This diagram makes it crystal clear, like digital Lego blocks you snap together for your UI. Key Parts Explained • Import React: Grabs the React library to make magic happen. 📥 • Function with Props: Takes inputs (like "greeting") and returns JSX – think data in, UI out! ⚡ • JSX Markup: Writes HTML-like code inside JS for dynamic content. ✨ • Export Default: Shares your component so other files can use it anywhere. 🔄 Components are reusable building blocks – master this anatomy, and building apps gets way easier! 💪 Who's building their first React project? Share below! 👇 #ReactJS #React #WebDevelopment #Frontend #FrontendDeveloper #LearnReact #JavaScript #JS #CodingTips #DeveloperLife #TechBeginners #BuildWithReact #Programming #CodeNewbie #WebDev #ReactHooks #NextJS #FullStack #DevCommunity #SoftwareEngineering #100DaysOfCode #LearnToCode #TechTips

A clear roadmap can make the difference between learning React randomly and mastering it with purpose. This React Roadmap 2026 is designed to help developers navigate the evolving frontend landscape with a structured approach—from core fundamentals to advanced patterns, performance optimization, and scalable architecture. It highlights the essential skills and tools needed to build modern, production-ready applications in today’s fast-moving tech ecosystem. Whether you’re starting out or leveling up, following a focused path ensures you spend less time guessing and more time building what truly matters. #ReactJS #Frontend #WebDevelopment #JavaScript #SoftwareDevelopment #Coding #TechCareer #LearnToCode #MERN #mernstack #aditya #adityathakor

💡 𝗧𝗶𝗽 𝗼𝗳 𝘁𝗵𝗲 𝗗𝗮𝘆 — 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗗𝗶𝗱 𝘆𝗼𝘂 𝗸𝗻𝗼𝘄? In React, "useRef" 𝘃𝗮𝗹𝘂𝗲𝘀 𝗽𝗲𝗿𝘀𝗶𝘀𝘁 𝗮𝗰𝗿𝗼𝘀𝘀 𝗿𝗲𝗻𝗱𝗲𝗿𝘀 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 𝗰𝗮𝘂𝘀𝗶𝗻𝗴 𝗿𝗲-𝗿𝗲𝗻𝗱𝗲𝗿𝘀. Unlike state, updating a ref 𝗱𝗼𝗲𝘀 𝗻𝗼𝘁 𝘁𝗿𝗶𝗴𝗴𝗲𝗿 𝗮 𝗿𝗲-𝗿𝗲𝗻𝗱𝗲𝗿, making it perfect for: - Storing mutable values - Accessing DOM elements - Keeping track of previous values 🔧 𝗨𝘀𝗲 𝗶𝘁 𝘄𝗵𝗲𝗻: You need to store something that shouldn’t affect the UI. Not everything needs to live in state. #React #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #SoftwareEngineering #CodingTips #BestPractices #FullstackDeveloper