Harshad Sonagara’s Post

🚀 Only 1% of Node.js developers optimize THIS… Every API call creates a new TCP connection ❌ That’s slow. 👉 Solution: HTTP Keep-Alive ⚡ Result: 👉 Faster API calls 👉 Lower latency 👉 Better performance under load 🔥 Most devs ignore this… and lose performance. 💬 Are you using keep-alive or default config? #NodeJS #BackendDevelopment #PerformanceOptimization #JavaScript #SystemDesign #Developers #Coding

Most developers have no idea how many dependencies they actually ship. Not what’s in package.json. The full tree. Modern apps are not built on a few packages anymore. They are built on entire ecosystems. And most tooling still shows this as a flat list. But dependency risk is not flat. Some packages sit at the edges. Others quietly sit at the center and support everything. If one of those breaks, the impact is massive. The problem is not the number. It’s the structure. I’ve been exploring ways to surface that instead of just listing packages. #opensource #devtools #javascript #typescript #nodejs #softwareengineering

🚀 React API Integration — Best Practice One mistake I see in many React projects is calling APIs directly inside components. ❌ This causes: • Multiple API calls • Performance issues • Unnecessary re-renders ✅ Best Practice: Use useEffect for API calls and handle loading + error state. This makes your application: ✔ Scalable ✔ Maintainable ✔ Production ready Small improvements like this make a big difference in real-world React applications. What API library do you use in React? Fetch or Axios? #reactjs #reactdeveloper #frontenddeveloper #mernstack #javascript #webdevelopment #reacthooks #apiintegration #coding #developers

🚀 Still using await inside loops in Node.js? You might be slowing down your entire backend without realizing it. Switching to Promise.all() for independent tasks can massively boost performance⚡ Small optimization. Big impact. Are you writing async code the right way? #NodeJS #JavaScript #BackendDevelopment #Performance #CodingTips #AsyncAwait

NODE.JS — PART 2 (Core Modules) Node.js provides several built-in modules that allow developers to build backend applications efficiently. This post covers the most important core modules: • File System (fs) for file handling • Path module for working with file paths • OS module for system-level information • Events module for event-driven programming • Streams for handling large data efficiently Understanding these modules is important because they form the foundation of Node.js backend development. 📌 Save this for revision. #NodeJS #BackendDevelopment #WebDevelopment #JavaScript #FullStack #LearningInPublic #Consistency

🚀 Using `console.trace()` for Stack Trace Inspection (Node.js) The `console.trace()` method in Node.js provides a quick way to print the current stack trace to the console. This is useful for understanding the call stack leading up to a particular point in your code, especially when debugging complex or recursive functions. While not a replacement for a full debugger, `console.trace()` can be a valuable tool for quickly identifying the source of unexpected behavior. It is especially useful when working with asynchronous code. #NodeJS #Backend #JavaScript #APIs #professional #career #development

🚀 JavaScript Event Loop: Your Async Superpower! 🌀 Confused how JS juggles multiple tasks on one single thread? 😵 Let's break it down visually! 1. Call Stack 📚: Runs your code line-by-line (sync stuff first!). 2. Web APIs 🌐: Handles async like setTimeout or fetch outside the stack. 3. Queues: • Microtask Queue ⚡ (Promises – VIP priority! Executes ASAP) • Callback Queue ⏳ (setTimeout – waits its turn) 4. Event Loop 🔄: Magic conductor! Checks empty stack → Microtasks → Callbacks. Pro Tip: Master this for smoother React hooks, Node servers, or any async magic! 💥 What’s your biggest Event Loop "aha" moment? Drop it below! 👇 #JavaScript #EventLoop #WebDev #ReactJS #NodeJS #Frontend #AsyncJS #CodingTips #Programming #DevCommunity #SoftwareEngineering #LearnToCode

🚀 Day 967 of #1000DaysOfCode ✨ useEffect Hook in React (Explained Simply) `useEffect` is one of the most powerful hooks in React — but also one of the most misused. In today’s post, I’ve explained the `useEffect` hook in a simple and practical way, so you can understand how and when to use it correctly. From handling API calls to managing subscriptions and syncing data, `useEffect` helps you deal with side effects in your components. The tricky part is understanding dependencies — which often leads to bugs like infinite loops or missed updates. I’ve also covered common mistakes developers make and how to avoid them in real-world applications. If you’re working with React, mastering `useEffect` will make your code much cleaner and more predictable. 👇 What’s the most confusing part of `useEffect` for you — dependencies or execution timing? #Day967 #learningoftheday #1000daysofcodingchallenge #FrontendDevelopment #WebDevelopment #JavaScript #React #CodingCommunity #ReactJS

Unpopular opinion: most Next.js 15 server components — the end of client-side rendering? tutorials are teaching you the wrong thing. They teach syntax. They should teach systems thinking. The difference between a junior and senior developer isn't knowing more APIs. It's knowing which problems are worth solving and which to delegate — to a teammate, a library, or an AI. What's the most valuable lesson you've learned that no tutorial ever taught you? #WebDevelopment #TypeScript #Frontend #JavaScript

There’s a type of mistake that every developer never forgets… the stupid ones 😅 Not “stupid” because they are complex — but because the situation was simple and obvious, yet the mistake still cost you a lot of time. In my Node.js journey, my first mistake was building a REST API and completely forgetting about CORS 😊 But the dumbest mistake I made in the beginning was copying and pasting entire Node.js projects… including the node_modules folder. Yes… you need the patience of a camel 😏 Three JavaScript files turning into 260MB… and I repeated that process multiple times before I finally learned about: npm install That’s when I understood something important: It’s not just about writing code — it’s about understanding how the ecosystem works. These “stupid” mistakes are the ones that stay with you the longest… and turn you into a better developer. #NodeJS #Programming #WebDevelopment #JavaScript #CodingLife #SoftwareDevelopment #LearnToCode #Debugging #Developers #TechJourney