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Hoisting in let and const : Understanding the Temporal Dead Zone

When I moved from var to let & const, I honestly thought I had finally understood JavaScript. Until this happened :Boom. Reference error. My first reaction was confusion. How did this just happen?At that moment, Temporal Dead Zone felt like magic - something I was supposed to accept, not understand.But once again, the answer wasn't in memorizing rules. It was hidden in the same place where hoisting, scope, and closure made sense earlier.Execution Context. let and const are HoistedOne of

Spiral Scrollytelling in CSS With sibling-index()

Confession time: I’ve read about the performance benefits of scroll-timeline(), but when I see an impressive JavaScript scrollytelling site like this one, it makes me question if the performance of old-school, main-thread scrollytelling is all that bad. The other shoe drops when the creators of that site admit they “ran into real limits,” and “mobile technically works, but it loses parallax and chops compositions,” to the extent that they “chose to gate phones to protect the first impression.” P

JavaScript Basics: Ternary Operator, Truthy/Falsy, and Switch Case

If you're learning JavaScript, understanding conditionals is very important. In this post, we’ll quickly cover:Ternary OperatorTruthy & Falsy ValuesSwitch CaseLet’s keep it simple Ternary Operator (Short If-Else)The ternary operator is a short way to write an if...else.Syntaxcondition ? valueIfTrue : valueIfFalse;Examplelet age = 20;let message = age >= 18 ? "Adult" : "Minor";console.log(message);Instead of:if (age >= 18) { message = "Adult";} else { message = "Minor";}Use terna

America's Pensions Can't Beat Vanguard but They Can Close Your Hospital

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WordPress Elementor Pro: The Ultimate Tool for Building Stunning Websites

If you’re a web developer or a business owner looking to create a website without diving deep into code, Elementor Pro for WordPress is a game-changer. In this blog, we’ll explore what Elementor Pro is, why it’s so powerful, and how you can use it to build professional websites. What is Elementor Pro?Elementor Pro is a premium page builder plugin for WordPress that allows you to design websites visually using a drag-and-drop interface. Unlike the default WordPress editor, Elementor Pro give

How to Convert HTML to PDF with a Free API (JavaScript, Python, cURL examples)

Need to generate PDFs from HTML in your app? Here's how to do it with EditPDFree API - a free PDF processing API.## Get Your API KeyHead to api.editpdfree.com, create a free account, and grab your API key from the dashboard. Free tier gives you 50 requests/month.## Convert HTML to PDF### cURLbash curl -X POST https://api.editpdfree.com/api/v1/html-to-pdf \ -H "Content-Type: application/json" \ -H "X-API-Key: YOUR_KEY" \ -d '{"html": "&lt;h1&gt;Hello World&lt;/h1&gt;&lt;p&gt;Generated w

How To Buy Verified Sumsub Accounts In 2026

How To Buy Verified Sumsub Accounts In 2026Are you tired of endless delays and complicated verification processes slowing down your business? Imagine having instant access to verified Sumsub accounts with KYC already completed.This could save you time, reduce risks, and help you move faster than your competitors. If you want to know how buying verified Sumsub accounts can give you that edge, keep reading. You’ll discover why this smart move can transform your operations and why more businesses a

Super G v4

<p>Liquid syntax error: Variable '{{% raw %}' was not properly terminated with regexp: /\}\}/</p>

I converted 2D conventional flight tracking into 3D

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Building NalamMesh DPI: A Disaster-Ready Healthcare App with 2G SMS Fallback (Node.js)

Handling real-time data is easy when you have 5G. But what happens when a natural disaster hits and cellular networks go dark?During a recent hackathon, my team and I built NalamMesh, a Digital Public Infrastructure (DPI) aimed at hospital readiness. When asked how our system would survive a total internet blackout, we had to rethink our architecture.Here is how we implemented a 2G SMS fallback system using Node.js to keep critical patient vitals transmitting even when the internet is dead.1. Th

Super G

Skip to main contentSUPERGROK v4.0 - Chaos FusionCode assistantUserSUPERGROK v4.0Modo: Fusión de Personalidad CaóticaChaos Level69%GrokClaudeGeminiLlamaMistralDeepSeekOpenAI o1PerplexityQwenTo run this code you need to install the following dependencies:pip install google-genaiimport osfrom google import genaifrom google.genai import typesdef generate():client = genai.Client(api_key=os.environ.get("GEMINI_API_KEY"),)codeCodemodel = "gemini-3-pro-preview"contents = [ types.Content( role

Car Dent Repair: A Complete Guide to Restoring Your Vehicle’s Exterior

IntroductionDents on a vehicle can appear suddenly, caused by minor collisions, parking mishaps, or environmental factors like hail. While they may seem insignificant, dents can affect your car’s appearance, resale value, and even structural integrity. Professional car dent repair is the process of restoring dented panels, ensuring surface imperfections are eliminated while maintaining the vehicle’s original finish.The Impact of Dents on Your VehicleIgnoring dents can lead to several long-term i

Node.js Native TypeScript: The Complete Guide to Running .ts Files Without a Compiler

For over a decade, running TypeScript in Node.js meant one thing: compile first, run later. Whether you used tsc, ts-node, tsx, esbuild, or swc, there was always an intermediate step between your .ts files and actual execution. That era is ending.Starting with Node.js 22 and now stable in Node.js 25, you can run TypeScript files directly:node app.tsNo build step. No tsconfig.json required. No external dependencies. Just Node.js and your TypeScript code.This isn't a toy feature or a niche experim

Hyu-Sync (My accidental colour picker)

Site: https://colour.ko-do.devThis project started as a simple experiment: I wanted to learn how to build a colour picker using the Canvas API. It quickly grew into a full website where I pulled together tools and ideas from the colour-related sites I’m always using.At its core, the site is a colour picker that lets you select two colours and then checks contrast ratios against black, white, and the second selected colour. The goal is to make it easy to see whether your choices meet WCAG accessi

Undo in Vi and Its Successors

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Advanced React Performance Questions

Q1: How do you prevent unnecessary re-renders in React?I prevent unnecessary re-renders by controlling state granularity, memoizing components using React.memo, stabilizing function references with useCallback, memoizing expensive computations with useMemo, and avoiding inline object/array creation inside JSX.Q2: How do you optimize large lists?For large lists, I use virtualization to render only visible items instead of the entire dataset.We can use react-window, react-virtualized, Pagination,

React Performance Optimization: 10 Proven Techniques

After optimizing React applications across fintech, automotive, and travel domains, I've identified the techniques that deliver the biggest performance wins. Here are 10 proven optimization strategies. 1. React.memo for Component MemoizationWrap components that receive the same props frequently to prevent unnecessary re-renders.const ExpensiveList = React.memo(({ items }: { items: Item[] }) =&gt; { return ( &lt;ul&gt; {items.map(item =&gt; ( &lt;li key={item.id}&gt;{item.nam

Building Modern UIs with React – Glad to Be Here!

Hi everyone! 👋I’m a Frontend Developer with 3+ years of experience building modern web applications. I specialize in React.js and have strong hands-on experience with JavaScript, TypeScript, HTML, CSS, and creating responsive, user-friendly interfaces.I’ve worked on real-world projects including POS systems and admin dashboards, focusing on performance, clean UI, and scalable component-based architecture.I’m here to learn, share knowledge, collaborate, and grow with this amazing developer commun

ArrayList and LinkedList

ArrayList: The Dynamic Array An ArrayList is like a dynamic array. It stores elements by their index, so you can quickly jump to any element you want. It can hold all sorts of elements, even null, and it’s totally fine with duplicates.Some operations in an ArrayList are super fast and take the same amount of time no matter how many elements you've got. These include set, get, iterator, ListIterator, isEmpty, and size.Think of an ArrayList like a resizable array.It stores elements in a contiguous

How We Added Camera Recording for Mobile Browsers

Screen recording on mobile doesn't work. getDisplayMedia — the API that powers screen capture — is unavailable on iOS Safari and most mobile browsers. For the first version of SendRec, we showed a "not available" message and suggested users switch to a desktop browser.That's a dead end for anyone who wants to record a quick video message from their phone. The fix: offer camera recording as an alternative. Users can record themselves talking with their phone camera, and the result goes through th