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Time zones are one of those topics that look simple until you ship something and a user in another country sees the wrong time. Here are the traps I k
If you have ever received a photo from an iPhone and gotten a .heic file that Windows refuses to preview, you have met Apple's High Efficiency Image C
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Is your text readable on that background? There's a precise, math-backed answer — the WCAG contrast ratio — and you can compute it in ~10 lines. Here'
A carousel is one of the most-requested UI components — and you don't need Swiper or a framework for the basics. It's one flex row and a translateX. H
Wordle looks simple — until you try to color a guess with a repeated letter correctly. That edge case is the whole interview question hiding inside th
useMemo and useCallback confuse people because the thing they fix is invisible: object and function identity. So I built a tool that makes identity vi
Cut LLM prompt tokens on structured data — losslessly A small, dependency-free tool for shrinking logs, JSON, and CSV in prompts — without
Every approach to capturing a screenshot from a URL falls into one of three categories: call an API, run a local headless browser, or use a client-sid
If you're building a Node.js API, you already know the basics: write endpoints, add error handling, deploy. But how do you know your API is actually u
Password protecting a PDF sounds trivial, but building it client-side has a few gotchas. Users expect to type a password, hit a button, and get a lock
Hey everyone! 👋 I'm Mantu from India, and I'm just getting started with open source. Recently, I decided to begin preparing for Google Summer of Code
While frontend engineers keep rebuilding their projects around new build tools, JavaScript itself keeps getting faster, safer, and more mature. Here's
Introduction to Base and the Beryl Hard Fork Base, a significant player in the blockchain landscape, has confirmed a delay for its Beryl ma
I woke up this morning with no idea what to build. By the end of the day I had a live SaaS product with auth, a database, automated emails, a custom d
Cómo solucionar el bucle infinito en useEffect con objetos y arrays en React Explicación técnica El problema ocurre porque useEf
What building Pagelyze taught me about React best practices - and why it has very little to do with hooks. Building Pagelyze has made me think more c
If you only need to take a screenshot, Puppeteer and Playwright are closer than the endless "which is better" debates suggest. Both control a headless
You've been generating UUID v4 for your primary keys. It works. Nothing is on fire. But your database is slowly getting slower, and you might not have
Originally published at norvik.tech Introduction Explora la nueva versión de Node.js 24.18.0 y cómo impacta el desarrollo web moderno. A