Node.js Event Loop Simulator Built from Scratch

We're getting closer to making Evōk's intelligence engine available to coders with https://Codebase.Observer Starting next week, early beta users running TS/JS/JSX/TSX projects can run our codebase semantic intelligence on their own repos. #Beta signup is open. #code #coding #javascript #typescript

If you're still manually writing useMemo and useCallback everywhere, you might be optimizing for a problem that no longer exists. The React Compiler hit v1.0 in late 2025. What that means in practice: memoization is now handled at build time, automatically. The compiler analyzes your component tree and decides what to cache. You don't have to. Which means a lot of the useMemo(...) scattered across codebases today is either redundant — or worse — masking component design issues that should have been fixed instead. I've been thinking about how much time I've spent on manual memoization over the years. Not just writing it, but debugging stale closures, wrong dependency arrays, and explaining to every new dev why wrapping a click handler in useCallback probably isn't helping. If you're starting a new React project right now: test with the compiler first. Optimize manually only where the profiler tells you to. The shift isn't just about tooling — it's about what "thinking in React" actually means now. What's your team's current stance on the React Compiler in production? #React #TypeScript #FrontendDevelopment #WebDev #JavaScript

🚀 The Node.js Event Loop What Most Developers Don’t Truly Understand Most developers use async/await daily. Very few understand what happens beneath the surface. At the core of Node.js lies the Event Loop the mechanism that powers its non-blocking, high-concurrency execution model. If you're building production-grade systems, understanding this is not optional. ------------------------------------------------------------------------------------- What Actually Matters 1️⃣ The Call Stack Executes synchronous code. If it’s blocked, your entire application stops responding. 2️⃣ The Callback Queue Processes asynchronous operations such as I/O, timers, and network requests. 3️⃣ Microtasks vs Macrotasks Promise callbacks (microtasks) are executed before timer or I/O callbacks (macrotasks). Misunderstanding this order can introduce subtle latency and performance issues. 4️⃣ Blocking Operations CPU-intensive tasks or synchronous loops block the event loop, increasing response time for every connected user. #NodeJS #BackendEngineering #JavaScript #EventLoop #SystemDesign #ScalableSystems #SoftwareArchitecture

Built a 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞 𝐁𝐮𝐢𝐥𝐝𝐞𝐫 recently as part of the VectorShift (𝐘𝐂 𝐒𝟐𝟑) Frontend Technical Assessment. The idea was to create a visual system where different nodes can connect together to form a pipeline. While building it, I focused on keeping the node system reusable and making the UI clean and interactive. One feature I enjoyed implementing was the text node variable detection. When a variable is written using {{variable}}, the system automatically creates new connection handles dynamically. The backend also checks whether the final pipeline forms a 𝐃𝐢𝐫𝐞𝐜𝐭𝐞𝐝 𝐀𝐜𝐲𝐜𝐥𝐢𝐜 𝐆𝐫𝐚𝐩𝐡 (𝐃𝐀𝐆). Tech Stack: React, TypeScript, React Flow, Tailwind CSS, FastAPI, Python Live Demo: https://lnkd.in/gV-EtCbh GitHub: https://lnkd.in/gkxTGxPS Thanks for the interesting challenge Albert Mao. Always open to feedback or suggestions. #VectorShift #ReactJS #TypeScript #FastAPI

The LeetCode grind is real, so I found a way to make it visual To truly master algorithms, I realized I needed to see them in action. I decided to build a full scale DSA visual, moving from idea to a functional tool in record time by leveraging an AI-augmented development workflow. What it does: 18 'Blind 75' problems: Step-by-step animations for complex logic Multi-language support: Interactive solutions in Python, JS, Java, and C++ In-browser IDE: An editor that runs code against live test cases The build: Leveraged an agentic development workflow with React, TypeScript, Framer, Motion, and Zustand. This project wasn't just about the code, it was about using AI as a force multiplier to build a learning tool I actually needed. Live demo: https://lnkd.in/gVvcUQ34 GitHub: https://lnkd.in/gYRgA2xb #LeetCode #ReactJS #AI #SoftwareEngineering #ClaudeCode #AIEngineering

A React Hooks contributor, Inferno creator, and Svelte 5 core maintainer walks into a compiler — and builds something entirely new. Ripple is a TypeScript-native UI framework that throws out the virtual DOM, eliminates dependency arrays, and generates surgical DOM updates at compile time. Here's why its reactivity model is worth understanding, even if you never use it in production.

🔹 Engineering Depth – Week 2: Event Loop & Async Reality Q: Why can async/await still produce unexpected execution order, even though the code looks synchronous? “Async/await pauses the function, not the event loop.” “Promises resolve in the microtask queue.” “Execution resumes only after the current call stack is clear.” This is why in real systems: • Forgotten await causes silent race conditions • Promise chains execute before setTimeout • Execution order differs from visual code order Understanding this changes how you design: – API calls – Parallel operations – Error handling flows Async/await improves readability. But the event loop decides execution. #JavaScript #AsyncProgramming #SoftwareEngineering #NodeJS #FrontendArchitecture #BackendDevelopment #TechDepth

🚀 I built a VS Code extension that plays a “FAAAAH” sound on every error. As developers, we all know the feeling: Test fails ❌ npm install breaks ❌ Build crashes ❌ Syntax error in file ❌ So I built a lightweight VS Code extension that detects: • Terminal command failures • Task exit codes ≠ 0 • TypeScript / ESLint / runtime errors • Package installation failures And plays a dramatic “FAAAAH” sound instantly. It hooks into: onDidCloseTerminal onDidEndTaskProcess onDidChangeDiagnostics With cooldown control and toggle settings. Why? Because sometimes feedback should be: Immediate. Emotional. Memorable. Next version ideas: 🔹 Different sounds per error type 🔹 Failure counter 🔹 “Rage Mode” 🔹 Custom sound upload Building small dev tools like this is a great way to explore the VS Code Extension API deeply. Would you install it? 😄 Live : https://lnkd.in/gaUkZGum #VSCode #JavaScript #DeveloperTools #BuildInPublic #SideProject

STOP WAITING FOR THE BACKEND🛑 After 13+ years as a dev, I got tired of hardcoding user_1, user_2 and test_data while waiting days for an API. I built Mockforge to change that. Zero Config: No installs, no dependencies. AI-Powered: Just call an endpoint you invent on the fly. Realistic Data: No more "User_1" everywhere. Try it now at mockforge.io 🚀 Built with ❤️ at Pixbind It’s mocking that feels like a real production API. #frontend #webdev #javascript #react #programming #productivity #ai

Dispatch & SetStateAction in React with TypeScript 👈 The SetStateAction type defines what you’re allowed to pass into the state setter. In this case, it can be either a value or a function that receives the previous state and returns a new one. Dispatch<T> represents the function that triggers the state update. Putting it together, you have Dispatch<SetStateAction<number>>. Essentially, this line of code is telling you that it is a function that updates the state while accepting either a value or a function based on the previous state.   #React #TypeScript #Coding #SoftwareDevelopment