Understanding JavaScript Hoisting and Closures

We all use console.log… But we barely use its real power. We’ve all done this: console.log("check") Again. And again. And again. 😅 But the console can do way more. 👇 console.table(data) // better data view console.time("api") // measure performance console.timeEnd("api") // end timer console.group("Debug") // structured logs Most of us debug. A few of us debug smartly. Small tools. Big difference. Curious — What's one console trick you use often? 👇 #Developers #JavaScript #Debugging #Programming #TypeScript #Coding

Just published a deep dive into how V8 handles arrays under the hood 🚀 Key takeaway: not all arrays are equal. Packed arrays (SMI/Double) and TypedArrays are highly optimized, while holey and mixed arrays introduce hidden performance costs due to extra checks and de-optimizations. If you're writing performance-critical JavaScript, these low-level details *matter more than you think*. I’ve also included a benchmark to see the differences yourself 👇 https://lnkd.in/gsxGFNZv #JavaScript #V8 #Performance #NodeJS #Programming

LeetCode Day 2 : Problem 80 (Remove Duplicates from Sorted Array II) Just solved another LeetCode problem. It was "Remove Duplicates from Sorted Array II", sounds similar to yesterday, right? But here's what I actually learned: My condition was more complex than it needed to be. I was checking against two positions when checking just one was enough. Always ask yourself, am I doing more work than the problem requires? I got confused seeing the full array in console.log and thought my answer was wrong. But LeetCode only checks the first k elements. Everything beyond that is ignored. Read the problem statement carefully. I worried about the runtime being 53ms. Turns out it didn't matter, the solution was already O(n), one pass, no extra space. LeetCode's runtime fluctuates every run due to server load. What matters is time and space complexity, not the ms number. Four problems in. The Two Pointer pattern keeps showing up. Same idea, slightly different condition each time. The real lesson? Don't overcomplicate the condition. And never judge your solution by ms, judge it by complexity. #DSA #LeetCode #JavaScript #CodingJourney #Programming

The biggest React 19 feature isn’t a new hook. it’s the React Compiler, now stable and shipping with zero configuration! The compiler automatically memoizes your components. You no longer need to sprinkle useMemo, useCallback, and React.memo everywhere: #react #developer #dev #programming #react19 #compiler #programming #tips #frontend

C# allows multiple inheritance via interfaces (safe), but not via classes (ambiguous).Multiple Inheritance in C# — Interfaces vs Classes (Quick Summary) 🔹 Using Interfaces (Allowed ✅) A class can implement multiple interfaces Interfaces have no implementation, only method signatures The class provides one implementation 👉 No ambiguity, no duplication 🔹 Using Classes (Not Allowed ❌) A class cannot inherit from multiple classes Because it would bring multiple implementations of same method Leads to Diamond Problem (ambiguity) 👉 Compiler won’t know which method to call #CSharp #DotNet #ASPNetCore #SoftwareDevelopment #Programming #Coding #Developer #WebDevelopment #BackendDevelopment #TechInterview #InterviewPrep #LearningToCode #100DaysOfCode #CodeNewbie #DevelopersLife

I used to use var for everything. I thought let is just the "new version" of var. Same thing, right? Wrong. var is hoisted to the top of the function.   let stays inside the { } block. That's why everyone says: stop using var. let is not just "new var". It's safer var. Did you also use var for everything before? #javascript #coding #learnToCode

Event Bubbling vs Event Capturing: Mastering DOM Event Propagation Learn the difference between event bubbling and event capturing, when to use each, and how to implement them with clean, production‑ready JavaScript code. This tutorial walks you through concepts, practical examples, and best‑practice patterns. Read the full article 👇 https://lnkd.in/gYXpk-ST #JavaScript #WebDevelopment #Programming #Coding #Tech #EventPropagation #DOMEvents #EventBubbling #EventCapturing #FrontendEngineering #DigitalTransformation #FutureOfWork

RadSystems Studio continues to evolve to meet modern enterprise standards. We are thrilled to announce the official release of RadSystems Version 9.2.0 and Components v2.1.0. To ensure unparalleled flexibility for developers, Components v2.1.0 brings aggressive updates to our core engines. You can now build with the latest industry frameworks, including: Laravel v12 PrimeVue v4.5 Python Flask v3.1.3 These framework upgrades, combined with critical bug fixes for layout discrepancies and database connectivity, drastically enhance the stability, scalability, and overall developer efficiency of your workflows. By reducing redundant coding time, you can focus entirely on your core business logic. Update your environment today to explore the new features and build the enterprise-grade applications your business deserves. Download for Free: https://lnkd.in/gXYagrRr #RadSystems #LowCode #SoftwareDevelopment #Laravel #Python

Online Compiler A fast, browser-based code editor supporting 10 programming languages with a VS Code-like experience. Live Link : https://lnkd.in/gHgrK_HF Source code : https://lnkd.in/g6Z6CiNJ Built with Next.js, TypeScript Would love your feedback 🙌 #NextJS #WebDevelopment #Programming #OpenSource #DeveloperTools

Think you know the exact order Node prints async callbacks? Four console.log calls are queued using sync, nextTick, Promise.then and setImmediate. No other code runs. In production the wrong assumption can reorder logs, hide timing bugs, and mislead performance metrics. Debug sessions become noisy, and latency regressions slip through. Interviewers love to trap you with this nuance. Comment A, B, C, or D with your reasoning and defend your pick. #NodeJS #Backend #Programming #CodingInterview