Object-Oriented Programming (OOP) in JavaScript: A Complete Guide with Real-World Examples
Object-Oriented Programming (OOP) is one of the most widely used programming paradigms in modern software development. Whether you're building a simpl…
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Stop refunding payments you should never have charged
I once shipped a checkout that charged the card the instant the customer hit pay, then ran the order validation afterward. Stock check, address valida…
Auto-Block Focus Time in Google Calendar — Building a Schedule-Based Chrome Extension
Most focus-time tools for Google Calendar require OAuth access and sync your calendar data to their servers. Clockwise shut down its free tier. Reclai…
TypeScript Without tsc in 2026: Type-Stripping in Node.js 24, Bun, and Deno Compared
TypeScript Without tsc in 2026: Type-Stripping in Node.js 24, Bun, and Deno Compared The End of tsc: Why Type-Stripping Changed Everything in 2026 Mos…
How I built Google Drive sync without a backend (and the 3 bugs that almost broke me)
When I started building PenPage — a privacy-first note app that stores everything in IndexedDB — I made one assumption that cost me three weeks of deb…
Stop Parsing PDFs at Render Time: A Better Architecture for Structured Extraction
TLDR: The reason most frontend PDF extraction is wrong is that developers try to infer document structure from the rendered visual output instead of f…
Handling Shadow DOMs in Agentic Scraping Workflows
TL;DR Web components encapsulate UI and data inside Shadow DOMs, hiding it from standard parsers like BeautifulSoup and document.querySelector . To ex…
Day 32 of Learning MERN Stack
Hello Dev Community! 👋 It is Day 32 of my continuous web development run, and today I jumped into a project that pushed my array manipulation and cond…
Wuchale: One Year of Compile-Time i18n
Photo by Bernd 📷 Dittrich on Unsplash It has now been one year since the initial commit of Wuchale! A lot has happened since then and I will explore s…
The exact math that made $40,000,000 out of Polymarket (Full roadmap)
While you're manually checking if YES + NO = 1 , quantitative systems are solving massive constraint satisfaction problems across thousands of correla…
package.json vs go.mod: Where Did the Version Field Go?
If you come to Go from JavaScript, one small thing surprises almost every developer. Open any package.json . Look near the top. It is always there: { …
The Day We Fixed Our Signup Pipeline
It started with a graph. Our signup numbers were climbing every week. The team was excited—growth was happening. But something felt off. A lot of thos…
TypeScript 6.0 Released: The Last JavaScript-Based Version — New Features, Breaking Changes, and Migration Guide
TypeScript 6.0 Released: The Last JavaScript-Based Version — New Features, Breaking Changes, and Migration Guide TypeScript 6.0: The End of an Era and…
How I Built a Cinematic Portfolio with React and Framer Motion
Hi, I'm Akshay Bhawar, a Full Stack Developer from Maharashtra, India. Recently, I decided to completely redesign my portfolio. Instead of going with …
Biome vs Oxlint in 2026: Which Rust-Powered Linter Should You Replace ESLint With
Biome vs Oxlint in 2026: Which Rust-Powered Linter Should You Replace ESLint With Most teams replacing ESLint in 2026 choose the wrong Rust-powered li…
I built a JS/TS runtime in Rust where nothing runs without your permission
Last week I shipped v2.0.2 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
I built a JS/TS runtime in Rust where nothing runs without your permission
Last week I shipped v2.0.0 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…
Why recording video in the browser is harder than it looks
Hey folks! In this article, I want to share our experience building a screen recorder inside the browser. The product is Browser Recorder , a Chrome e…
The Best React Data Grid Is the One You Will Not Hate After Feature Request Number Seven
I have never seen a product manager open a ticket called: Turn this table into a small operating system. It happens one perfectly reasonable request a…
Day 31 of learning MERN Stack
Hello Dev Community! 👋 It is officially Day 31 — stepping straight into my second month of documented full-stack engineering! Fresh off the 30-day mil…
I Built a PDF Toolbox That Never Uploads Your Files — Here's How
Every "free online PDF tool" uploads your files to a server. I built one that doesn't — and here's the technical breakdown. The Privacy Problem Try th…
# I Built a Full Stack Academic Management System for My College — Here's How
I Built a Full Stack Academic Management System for My College — Here's How For my B.Tech final year project, me and my team built Student Sphere — a …
Bun rewrote itself from Zig to Rust using an LLM in 9 days. That should terrify you.
A major runtime just got machine-translated to a completely different language and merged in under two weeks. Let me say that again slowly. Bun, the J…
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It)
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It) A real bug from building Flacron Gamezone — a live football platform bu…
Edge Computing in the Browser: How I Replaced a Backend Server with Web Workers & WASM
The obsession with centralizing heavy compute on backend servers is a massive bottleneck for both cost and latency. In 2026, as more applications move…
Generating valid .ics calendar feeds at build time
A few weeks ago I shipped a feature I'd been putting off because it felt like it needed a backend: subscribable calendar feeds. "Add this holiday to G…
Why I stopped hardcoding AI API keys in my frontend
A few months ago, I pushed a commit that accidentally exposed my OpenAI API key in a client-side JavaScript bundle. I caught it before anyone else did…
A Scatter-Plot Explorer for World Statistics — Log Scales and Hand-Rolled Pearson Correlation
"Do countries with higher GDP per capita also have longer life expectancy?" I built a tool that lets you explore questions like that across 48 countri…
JSONata Explained: Query and Transform JSON Without the Boilerplate
Working with complex JSON payloads can quickly become a nightmare. You end up chaining .map() , .filter() , and .reduce() calls across multiple lines …
Behind the Green Tests: My Honest HNG Internship Experience
Over the past two years, I've been a laravel developer. I've been so stuck with this framework that I felt like I didn't know much about actual progra…