React Performance Optimization and Learning

🚀 Day 2 of My TypeScript Journey! Today was packed with learning — here's everything I covered: 📌 03 - Functions ✅ Function types & return types ✅ Optional parameters (?) ✅ Default parameters ✅ Arrow functions ✅ Rest parameters (...args) ✅ Function overloading 📌 04 - Async/Await ✅ What is a Promise? ✅ resolve & reject ✅ .then() & .catch() ✅ async/await syntax ✅ try/catch error handling ✅ Promise.all() — run multiple async tasks together 💡 Key Takeaways: 1️⃣ Always define return types in functions   → makes code predictable & safe 2️⃣ Use optional (?) for params that may not exist   → great for API responses 3️⃣ async/await is just cleaner Promise syntax   → same thing, easier to read 4️⃣ Always wrap await in try/catch   → never let errors crash your app 5️⃣ Promise.all() saves time   → runs multiple calls together instead of one by one 🔥 Tips & Tricks: → void = function returns nothing → never use any[] in rest params if you can avoid it → Promise<T> — always specify what type will return → async function always returns a Promise — even if you don't write it 📂 All code on GitHub: https://lnkd.in/dPRGnVsx Day 3 tomorrow — Generics! 💪 #TypeScript #100DaysOfCode #WebDevelopment #JavaScript #NodeJS #Pakistan #Developer #Coding #OpenToWork #NextJS #NestJS

💡 One Thing Tech Has Taught Me In the tech industry, learning never really stops. New frameworks, tools, and best practices keep evolving — especially in frontend development. What matters most is not just knowing a technology, but having the mindset to keep learning, adapting, and improving every day. As a Frontend Developer working with React and modern JavaScript, I try to focus on strengthening fundamentals while staying updated with new tools in the ecosystem. Growth in tech is a journey, not a destination. #FrontendDeveloper #ReactJS #ContinuousLearning #WebDevelopment

I'm currently learning React and building small projects daily. What should I focus on next to improve faster? #ReactJS #WebDevelopment #FrontendDev #100DaysOfCode #CodeNewbie #ReactProjects #LearningByDoing #DeveloperCommunity #TechGrowth #WebDevJourney

🚀 Day 15 of My #React Learning Journey – #Functional vs #Class #Components Today I explored the difference between Functional Components and Class Components in React. 🧠 #FunctionalComponents ✔ Simple JavaScript functions that return JSX ✔ No render() method required ✔ Use React Hooks for state & lifecycle ✔ Less code, easier to read and maintain ✔ Preferred in modern React development 🧠 #ClassComponents ✔ Must extend React.Component ✔ Requires a render() method ✔ Uses this.state for state management ✔ Lifecycle methods like componentDidMount() ✔ More boilerplate and complex structure ⚡ Key Differences 🔹 State Management Functional → useState (Hooks) Class → this.state 🔹 Lifecycle Handling Functional → useEffect Class → lifecycle methods 🔹 Code Complexity Functional → Simple & clean Class → More complex 🔹 Performance & Usage Functional → More efficient & widely used today Class → Older approach (still useful but less common) 💡 My Takeaway: Functional components with Hooks have become the standard way of building React applications due to their simplicity and flexibility. Excited to keep learning and building more with React! 💻✨ #React #JavaScript #FrontendDevelopment #WebDevelopment #ReactJS #LearningJourney #10000 Coders

🚀 I started learning React out of curiosity… but it completely changed how I think about building applications. At first, it felt overwhelming: – Components everywhere – Props vs State confusion – Hooks that made no sense But once things clicked, everything changed. 💡 React isn’t just a library for building UI — it’s a way of thinking. You stop writing messy, repetitive code and start building: ✔ Reusable components ✔ Clean and scalable structures ✔ Predictable UI logic And then you realize something powerful: 👉 Good React code is not about making things work 👉 It’s about making things maintainable But here’s the truth most people ignore: ⚠️ React is easy to start, but difficult to master. You’ll face: – Unnecessary re-renders – Complex state management – Confusing project structures And that’s where real growth begins. Right now, I’m focusing on: – Writing cleaner components – Improving performance – Understanding hooks deeply If you're learning React, don’t rush. Build. Break. Debug. Repeat. One day, it will all make sense. #ReactJS #FrontendDevelopment #JavaScript #WebDevelopment #CodingJourney #DeveloperGrowth #TechLearning

Day 27 of Learning React – Performance Optimization Today I learn some basic performance optimization techniques in React, including the idea of memoization. I explored how avoiding unnecessary re-renders can improve the performance of an application. Understanding when components re-render and how to control it can make a big difference in larger projects. This helped me see how small optimizations can lead to smoother user experiences and more efficient applications. Continuing to learn how to write cleaner and more optimized React code. #React #ReactJS #Frontend #WebDevelopment #LearningInPublic #100DaysOfCode

Early in my career, I thought being a better developer meant learning more frameworks... React. Then Next.js. Then another state manager. Then another tool. But over time, I realized something: 👉 Seniority isn’t about how much you know. 👉 It’s about how you think. The biggest shift for me was: Moving from “how do I build this?” to “should this even be built this way?” From adding layers… to removing unnecessary ones From chasing tools… to understanding trade-offs Today, I value: - Simplicity over cleverness - Clarity over abstraction - Long-term maintainability over short-term speed Frameworks will come and go. Thinking stays. What changed your perspective as you grew as a developer? #webdev #frontenddeveloper #growthmindset #softwarearchitecture #learning

🚀 Most developers learn React the wrong way. They jump into tutorials… Build random projects… And still feel stuck. So we fixed that. 👇 We’ve created a complete React Roadmap (2026 edition) — a structured path that takes you from zero → job-ready developer. 📌 Inside this roadmap, you’ll discover: • Core fundamentals you actually need (no fluff) • Modern React concepts (Hooks, State, Lifecycle, etc.) • Advanced topics like performance & architecture • Real-world project guidance • The exact order to learn everything This isn’t just another guide. It’s a step-by-step system to master React efficiently. 💡 Whether you're a beginner or leveling up — this roadmap will save you months of confusion. 📥 Check out the full PDF below and start building like a pro. 🔥 If this helps you, don’t forget to: ✔️ Like ✔️ Comment “REACT” and we’ll share more resources ✔️ Follow AlgoTutor for more structured tech roadmaps #ReactJS  #WebDevelopment  #FrontendDevelopment  #JavaScript  #CodingJourney  #LearnToCode  #Developers  #TechCareers  #Al #AlgoTutor

"𝗦𝗵𝗼𝘂𝗹𝗱 𝘁𝗵𝗶𝘀 𝗯𝗲 𝗮 𝗣𝗿𝗼𝗽 𝗼𝗿 𝗮 𝗦𝘁𝗮𝘁𝗲?" 🤔 If you’re learning React, you’ve asked yourself this a hundred times. Understanding the difference is the "lightbulb moment" where React starts to feel less like magic and more like a professional tool. Think of it like a 𝗖𝗮𝗿: 🚗 𝗣𝗿𝗼𝗽𝘀 = 𝗧𝗵𝗲 𝗖𝗮𝗿’𝘀 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 (𝗘𝘅𝘁𝗲𝗿𝗻𝗮𝗹) When you buy a car, the manufacturer decides the Model, the Color, and the Engine type. You receive these "specs" and you can't change them on the fly while driving. ● 𝗣𝗮𝘀𝘀𝗲𝗱 𝗱𝗼𝘄𝗻 from the Parent component. ● 𝗥𝗲𝗮𝗱-𝗼𝗻𝗹𝘆: A component should never modify its own props. ● 𝗚𝗼𝗮𝗹: To tell the component what it should be. ⚙️ 𝗦𝘁𝗮𝘁𝗲 = 𝗧𝗵𝗲 𝗖𝗮𝗿’𝘀 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱 (𝗜𝗻𝘁𝗲𝗿𝗻𝗮𝗹) While you're driving, you control the Speed, the Fuel level, and whether the AC is on. These things change constantly based on your actions. ● 𝗠𝗮𝗻𝗮𝗴𝗲𝗱 𝗶𝗻𝘁𝗲𝗿𝗻𝗮𝗹𝗹𝘆 within the component. ● 𝗠𝘂𝘁𝗮𝗯𝗹𝗲: You use useState to update it. ● 𝗚𝗼𝗮𝗹: To handle interactivity and things that change over time. 💡 𝗧𝗵𝗲 𝗚𝗼𝗹𝗱𝗲𝗻 𝗥𝘂𝗹𝗲: ✅ If a component needs info from its "parent" to work — 𝗨𝘀𝗲 𝗣𝗿𝗼𝗽𝘀. ✅ If a component needs to "remember" a user action (like a click or a form input) — 𝗨𝘀𝗲 𝗦𝘁𝗮𝘁𝗲. Mastering this distinction is what takes your code from "it works" to "it’s scalable." 🚀 𝗪𝗵𝗮𝘁 𝘄𝗮𝘀 𝘁𝗵𝗲 "𝗮𝗵𝗮!" 𝗺𝗼𝗺𝗲𝗻𝘁 𝗳𝗼𝗿 𝘆𝗼𝘂 𝘄𝗵𝗲𝗻 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗥𝗲𝗮𝗰𝘁? 𝗢𝗿 𝗮𝗿𝗲 𝘆𝗼𝘂 𝘀𝘁𝗶𝗹𝗹 𝗳𝗶𝗴𝘂𝗿𝗶𝗻𝗴 𝗼𝘂𝘁 𝘁𝗵𝗲 𝗱𝗮𝘁𝗮 𝗳𝗹𝗼𝘄? 𝗟𝗲𝘁’𝘀 𝗰𝗵𝗮𝘁 𝗶𝗻 𝘁𝗵𝗲 𝗰𝗼𝗺𝗺𝗲𝗻𝘁𝘀! 👇 #ReactJS #WebDevelopment #CodingForBeginners #FrontendDeveloper #SoftwareEngineering #JavascriptTips #TechLearning #CleanCode

Lately I’ve been focusing on React + TypeScript and one thing really clicked: I used to think adding TypeScript would slow me down… But it actually makes my code easier to reason about. Right now I’m: Rebuilding small components (tabs, forms, etc.) Paying more attention to clean structure Trying to write code I’d be proud to show in an interview Still learning, but definitely improving. Next step: applying this properly in projects. If you’re also learning frontend, what are you currently focused on?