Unlock React DevTools Profiler for Efficient Debugging

Developers at LeetCode handled their downtime progressively on User Interface/Frontend. Here is what happened. I opened LeetCode around 1350HRS (IST), at first I saw this: - A page with Cloudflare error on the Host side - Then on refreshing the page few times, it showed other error page On logs it was showing 404 Not Found After few seconds the team changed the whole monotonous UI game to a matrix movie level UI. With retries button etc. While the issue is still getting fixed, as I speak. But being a user, I immediately see how a change in UI like this can make the wait time of the user not so inconvenient. Lesson → Failures can happen → Always have a nice fallback UI P.S. Did you face LeetCode downtime issue today? #frontendengineering #programming #softwareengineering

I just found a VS Code extension that lets you chat with random developers based on tech stack. Simply search DevMatch for extensions inside vscode No switching platforms. No DMs. No waiting. Just select your stack, click match, and start chatting inside VS Code. Pretty interesting concept for debugging, quick help, or even networking. Link in comments. What do you think about developer matchmaking inside the editor? https://lnkd.in/dU8dDJgD #VSCode #SoftwareDevelopment #Developers #Programming #WebDevelopment #JavaScript #TechStartup #DeveloperTools

In this video, I walk through the fundamentals from the ground up using a simple calculator example. We cover: ✅ Why testing matters in real-world development ✅ Writing basic unit tests in Flutter ✅ Running and understanding test results ✅ How professionals decide what to test Building features is important — but building reliable, maintainable software is what sets strong developers apart. Testing is a big part of that mindset. If you're getting started with Flutter or want to strengthen your development workflow, this one’s for you 👇 https://lnkd.in/dSqQR9MA #Flutter #SoftwareTesting #UnitTesting #MobileDevelopment #FlutterDev #Programming #TechContent #LearnToCode

(7/60). 7 days down, 53 to go. 🚀 Today’s mission: Dominate the DOM and tackle JSchallenger challenges. It’s easy to skip the basics when you want to build cool stuff, but your ceiling as a developer is only as high as your foundation. Whether it’s selecting elements or solving algorithmic puzzles, consistency is key. Another brick in the wall. 🧱 #60DayChallenge #JavaScript #WebDevelopment #Coding

Most developers misunderstand this. Predict the output: const user = { name: "Prakhar", greet() { console.log(this.name); } }; const fn = user.greet; fn(); Output: undefined Why? Because this is determined by HOW a function is called, not where it is defined. When called as: user.greet(); this → user When extracted: fn(); this → global object (or undefined in strict mode) To fix: const fn = user.greet.bind(user); Understanding this is essential for debugging real-world apps. #javascript #frontend #webdevelopment #programming #softwareengineering

My code was perfect, obviously.😑 Until I hit deploy and everything broke. This is how I'm actually learning to debug. Recently, I spent 4 hours trying to figure out why my React component wasn't re-rendering after an API call. Turned out, I was mutating state directly instead of using setState correctly. Rookie mistake? Absolutely. Invaluable lesson? Even more so. Debugging isn't just about fixing bugs; it's about understanding why they happen. It's like being a detective with a magnifying glass to your code. 💻 My top 3 debugging tools and techniques: 🧑💻console.log() (The OG): Still my first resort for tracking variable values at different points. ☠️React Dev Tools: Essential for inspecting component state, props, and understanding the render cycle. 🤖Network Tab (Browser DevTools): My go-to for checking API request/response headers and payloads when backend calls fail silently. Every bug fixed is a concept truly learned. Embrace the errors; they're your best teachers. What's the most "facepalm" debugging moment you've had recently?😁 #Debugging #WebDevelopment #ReactJS #CodeWisdom #DeveloperLife

Most developers don’t fully understand arrays. And that’s a problem. Because arrays are everywhere in JavaScript. So I made this: 👉 15+ Array Methods 👉 With practical examples 👉 Explained in the simplest way No theory overload. Just what actually matters. 💡 If you master arrays, your logic automatically improves. Don’t just scroll… Save it and level up your skills. #WebDevelopment #JavaScriptDeveloper #CodingTips #Programmers #TechEducation #SkillDevelopment #CodeDaily #FrontendDev

The Art of Debugging – Finding the Needle in the Haystack 🔍 They say coding is 10% writing code and 90% debugging. Today, I lived that reality! While working on my project, I ran into a mysterious crash related to Lifecycle Scopes. It’s easy to get frustrated when things don't work, but I’ve realized that debugging is where the deepest learning happens. Here’s my 3-step process for tackling a tough bug: 1️⃣ Read the Logcat: The answer is almost always hiding there. Understanding Stack Traces is a superpower! 2️⃣ Isolate the Issue: I use Breakpoints and the Debugger in Android Studio to watch the state of my variables in real-time. 3️⃣ Check the Documentation: Sometimes, a small change in the Android API level can change everything. Successfully fixing that bug today felt better than writing a hundred lines of new code. It’s not just about making the code work; it’s about understanding why it failed. To my fellow devs: What was the most "obvious" bug that took you hours to find? (Mine was a missing permission in the Manifest! 🤦♂️) #AndroidDev #Debugging #SoftwareEngineering #ProblemSolving #AndroidStudio #Kotlin #CodingLife #LearningInPublic

𝗜 𝘂𝘀𝗲𝗱 𝘁𝗼 𝘁𝗵𝗶𝗻𝗸 𝗰𝗼𝗻𝘀𝗼𝗹𝗲.𝗹𝗼𝗴('𝗵𝗲𝗿𝗲') 𝘄𝗮𝘀 𝗮 𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆. 𝗜 𝘄𝗮𝘀 𝘄𝗿𝗼𝗻𝗴. When I first started with React Native, my code was littered with: console.log("111111") console.log("reached here") console.log("data", res) Fast forward to my time at development, and my perspective on "𝗱𝗲𝗯𝘂𝗴𝗴𝗶𝗻𝗴" has completely shifted. In a production-grade app, if you are relying solely on terminal logs, you aren't just slow—you’re likely missing the real bottleneck. 𝗧𝗵𝗲 𝗘𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗼𝗳 𝗮 𝗥𝗲𝗮𝗰𝘁 𝗡𝗮𝘁𝗶𝘃𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: 🔴 𝗧𝗵𝗲 𝗝𝘂𝗻𝗶𝗼𝗿 𝗣𝗵𝗮𝘀𝗲:  • Debugging by trial and error.  • c𝗼𝗻𝘀𝗼𝗹𝗲.𝗹𝗼𝗴 everywhere (and forgetting to remove them before the PR).  • Fixing the "symptom" instead of the "cause."  • Thinking a 60fps drop is just "the emulator lagging." 🟢 𝗧𝗵𝗲 𝗦𝗲𝗻𝗶𝗼𝗿 𝗣𝗵𝗮𝘀𝗲 (𝗧𝗵𝗲 𝗗𝗲𝘃𝘀𝗶𝗻𝗰 𝗦𝘁𝗮𝗻𝗱𝗮𝗿𝗱):  • Flipper & React DevTools: Inspecting the component tree and tracking unnecessary re-renders.  • Performance Monitor: Watching the JS thread vs. UI thread like a hawk to identify frame drops.  • Network Inspector: Not just seeing "if" the API worked, but checking the payload size and response time.  • Memory Leaks: Using the "Memory" tab to find why the app crashes after 10 minutes of usage. The difference between a Junior and a Senior dev isn't just about how many libraries you know; it’s about the tools you use to find the truth when things go wrong. 𝗤𝘂𝗲𝘀𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗱𝗲𝘃𝘀: What is your "holy grail" debugging tool? Are you a Flipper fan, or do you still have a soft spot for the classic 𝗰𝗼𝗻𝘀𝗼𝗹𝗲.𝗹𝗼𝗴? #Devsinc #ReactNative #MobileDev #Debugging #SoftwareEngineering #PerformanceOptimization #Javascript #CodingLife