Full-Stack Developers Ruining Frontend Code with Poor Design

I just deleted 30 lines of code from a React component. no refactor. no library. just one hook in React 19. it's called use() — and it changes how you handle async data and context in your components. most devs haven't heard of it yet. swipe through ↓ broke it down simply what's the most boilerplate you've deleted in a single React upgrade? 👇 #react #react19 #javascript #webdev #frontend

One thing that improves a developer faster than any course Reading and Understanding the code pattern. Not tutorials. Not reels. Not “top 10 React tricks”. Real code. • Code written by experienced developers • Code inside open-source libraries • Code from production systems You start noticing patterns: Why was something designed a certain way. Why some abstractions are simple. Writing code teaches you syntax. Reading code teaches you thinking. Both matter. Most developers only do one. #frontend #softwareengineering #javascript #careeradvice #react

Are you still defaulting to Node.js for every new project? 🤔 For years, Node.js has been the undisputed king of JavaScript runtimes. It’s familiar, reliable, and it's everywhere. But defaulting to it without evaluating your actual project constraints could mean accepting unnecessary technical debt, configuration headaches, and slower execution. A great new read on the Frontend Masters blog breaks down exactly when Deno or Bun might actually be the better choice for your next project. Here are the key takeaways on choosing the right runtime: 🔒 When to choose Deno: • Security is paramount: Deno’s permission-based model is brilliant for untrusted/semi-trusted code, eliminating the need for heavy Docker sandboxing. • Zero-config TypeScript: It comes with out-of-the-box formatting, linting, and TS support. Perfect for fast internal tooling without the tsconfig tax. • Distribution: You can compile your code into a single, self-contained executable binary. No node_modules required! ⚡ When to choose Bun: • You need raw speed: Bun is fast. We’re talking drops from 29-second test suites to 9 seconds. This sub-second developer flow keeps engineers in the zone. • All-in-one tooling: Bun acts as your package manager, test runner, bundler, and TS compiler all at once. Fewer tools = fewer things breaking on updates. 🏢 When to stick with Node.js: • Ecosystem & Compatibility: If you are working with highly specialized native modules, obscure APIs, or need seamless integration with enterprise APM and logging tools. • Scaling teams fast: The talent pool for Node.js is massively deep. 💡 Pro Tip: You don't have to pick just one! You can use Bun for your lightning-fast local dev toolchain while keeping the battle-tested Node.js in production. What’s your go-to JavaScript runtime right now? Have you made the jump to Deno or Bun yet? Let’s debate in the comments! 👇 🔗 Read the full article here: https://lnkd.in/dnrm6am3 #24of21DayDevChallenge #21DayDevChallenge #JavaScript #NodeJS #Deno #Bun #WebDevelopment #SoftwareEngineering #TypeScript #TechCommunity #DeveloperExperience #FrontendMasters

Day 27 of my Frontend Development Journey 🚀 Today I focused on understanding Promises in JavaScript and how they help handle asynchronous operations more efficiently. What I learned today: • What Promises are in JavaScript • The different states of a Promise: Pending, Resolved, and Rejected • How to use .then() and .catch() for handling results and errors • Why Promises are better than callback-based asynchronous code • How Promises improve code readability and structure Understanding Promises helped me see how JavaScript manages asynchronous tasks like API calls, data fetching, and background operations. This knowledge is very important for building modern web applications and working with APIs. Every day I’m getting closer to becoming a better Frontend Developer by learning something new and building projects. #Day27 #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic #100DaysOfCode

Micro-Frontends aren’t just a technical solution — they help solve organizational challenges too. In this session, Luca Mezzalira draws on 10 years of global experience to share the most common anti-patterns and best practices for building scalable micro-frontends. Whether you’re just starting out or an experienced developer, you’ll learn how to structure your architecture correctly and avoid costly mistakes. Don’t miss out — grab your tickets today: https://lnkd.in/eR2QazBH #microfrontends #javascript #webdev #softwareengineer

Day 28 of my Frontend Development Journey 🚀 Today I focused on learning Async and Await in JavaScript, which makes working with asynchronous code much easier and cleaner. What I learned today: • How async functions work in JavaScript • Using await to handle asynchronous operations • How async/await improves code readability compared to .then() chains • Handling errors using try...catch • Understanding how async/await works with API requests Practicing async/await helped me understand how modern applications handle data fetching and background operations more efficiently. Step by step, I’m getting more comfortable with writing cleaner and more readable JavaScript code. Continuing to learn and build every day! #Day28 #JavaScript #FrontendDevelopment #WebDevelopment #LearningInPublic #100DaysOfCode

🚀 JavaScript Array Methods: Unlock the Magic! ✨ One cheat sheet, endless possibilities! Master these array methods for cleaner code, zero headaches, and pro-level JS skills. Perfect for every frontend dev! 💻 🔥 Add & Remove Like aPro • push() / unshift() ➕ • pop() / shift() ➖ ✂️ Slice, Dice & Transform • slice() / splice() • map() / filter() / reduce() 🔍 Search & Validate Fast • includes() / indexOf() • find() / some() / every() 🎨 Bonus Powers • sort() / reverse() / flatMap() • join() / fill() / concat() Pro Tip: Practice reduce() daily – it turns complex loops into 1-liners! 🪄 Save this 👆, code smarter, and level up! You're now in the top 20% of JS devs. 🚀 #JavaScript #ArrayMethods #JSTips #FrontendDev #WebDev #Coding #LearnToCode #ReactJS #DeveloperLife #CodeNewbie #ProgrammingTips #TechTips #JavaScriptDeveloper #Frontend #WebDevelopment

#One_real_production_lesson_frontend_dev_taught_me: We had a bug in production where an API was getting called twice. At first, it looked like a backend issue. But the backend logs were clean. So I started digging into the frontend 👇 The culprit? 👉 React 18 Strict Mode. In development, React intentionally runs components twice to detect side effects. But our code wasn’t written with that in mind. Here’s what we had: ❌ API call inside "useEffect" without proper safeguards ❌ No cleanup / idempotent logic ❌ Assumption: "useEffect runs only once" Result: Duplicate API calls → inconsistent data → confused users. --- ✅ Fix: - Made API calls idempotent - Added proper checks before firing requests - Avoided unnecessary side effects inside "useEffect" --- 💡 Lesson: Writing code that works is easy. Writing code that works in real-world scenarios is the real skill. React doesn’t cause bugs. Our assumptions do. --- Since then, I always ask: 👉 “What happens if this runs twice?” 👉 “Is this safe in concurrent rendering?” --- Still learning something new every day 🚀 #FrontendDevelopment #ReactJS #JavaScript #CleanCode #WebDevelopment #Debugging

Lately, I've been diving deeper into React to understand how it actually works under the hood. Not just building components, but exploring things like: • How React handles re-renders • State management patterns • Performance optimizations • The internal logic behind hooks • How React's rendering process works It’s easy to use React, but truly understanding why things work the way they do is where real learning begins. My goal right now is simple: Go beyond tutorials and build a stronger foundation. 🚀 #reactjs #webdevelopment #javascript #frontend #developerjourney