Auto-aggregated global tech articles · 468 posts
Acabei de lançar a versão 2.0 do validation-br, uma biblioteca em TypeScript para validar documentos brasileiros: CPF, CNPJ (numérico e alfanumérico), CEP, Boleto, chave Pix, Pix Copia e Cola, Título de Eleitor, PIS/PASEP, CNH, RENAVAM e mais uma dezena de outros formatos. A grande mudança da 2.0 é
A lot of this project's specification lives in markdown tables, and several tools read them. Parsing a table row looks like a solved problem: const cells = line.split('|').slice(1, -1).map((s) => s.trim()); That line is in more places than anyone had counted. Two cells broke it
Pricing web design projects is one of the most challenging decisions freelancers face. Price too low, and you'll burn out working for peanuts. Price too high, and you'll lose clients to competitors. The key is finding the sweet spot—pricing that reflects your value while remaining competitive in you
Enough has been said recently about why having a semantic layer is a good thing. Unfortunately, each of them has its own data model and corresponding storage format for storing those models, so migrating from one to another was a nontrivial endeavour. Apache Ossie sets out to change that. It is an
A decorative animation can sit outside a scroll viewport while its widget still reports isVisible() == true. A timer that only checks that property can keep advancing the animation even when the user cannot see it. Qt's visibility documentation distinguishes a widget's visible state from whether it
Season one of this story, From Prompt to Production, ended with a retrospective and a working app: ClinicLive books appointments, checks patients in at a kiosk, and calls them from a live waiting-room board — tested, hardened, deployed. It also looks exactly like the template it was born from. This
Creating a good compiler is a two-fold juggling task. On one hand, the compiler itself should run quickly and use very little memory. On the other hand, the machine code it produces should actually be fast too. Over the last few months, I have discovered that balancing between these two values is an
TLDR: I made "poor man’s" DSSM (Deep Structured Semantic Model) — the count-based translation table that can enrich the inverted index for full-text search. This trick can improve baseline BM25. So the idea is the following: - You have supervised pairs (query, relevant document), e.g., MS MARCO or c
If a payment API starts timing out, every checkout request sits and waits for the full timeout before failing, holding a worker the whole time. A circuit breaker stops that by failing fast once enough recent calls have failed. That is easy in one process, but once your app runs on more than one inst
Ahnii! northway is a Go service that turns approved sources into small, ranked, source-backed news feeds for AI agents, deployed Pi-first. Before committing that UX to the single-process Go build, I prototyped it in the browser first — a plain HTML/CSS/JS reader backed by a small Node.js proxy. Wha
⚡ Playwright Performance Bottleneck Solved: How do you implement an efficient and robust authentication strategy in Playwright for E2E tests, minimizing setup time and ensuring reliability across test runs? 📌 Problem Statement Many E2E test suites suffer from slow execution and flakiness due to rep
Introduction Data does not always come in a structure that is ready for analysis. For example, sales information may be stored separately from customer details, product information, dates and locations.Before creating reports, visuals or doing calculations in Power BI, it is important to understan
Introduction Data modeling is the foundational chapter of any power BI project; if the model is weak, the entire project including performance, calculations, and maintenance will suffer. the following article outlines the core concepts of data modelling. Data modeling This is the proce
When a WordPress site feels slow, the first recommendation is often “install a caching plugin.” Sometimes that works. Sometimes it hides the symptom for logged-out visitors while the dashboard, checkout, search, or API remains slow. Across more than 200 WordPress projects, I have found that slow Ti
You finish teaching props. You drew the box diagram, you gave examples. And they got it — you ask a question in class, they answer it fine. Next week, in the homework, the same student asks: "how do I know where this total comes from?" He didn't forget what you said. He knows what props are. He ju
[ EXECUTIVE TEARDOWN // TL;DR ] At 60fps, setState is the wrong tool; React batches faster than it flushes, so you pay for reconciliation and still get a laggy meter. Use a fixed typed-array ring buffer written by the socket and read once per animation frame. React should render the canvas e
Choosing a platform for a developer blog in 2026 means picking between three very different mental models: a fully programmable headless CMS (Sanity), a managed developer blogging network (Hashnode), and an open community platform (Dev.to). The right answer depends on how much you value SEO control,
A free game center at wqnlll.github.io — no framework, no build step, no npm install. Just HTML files on GitHub Pages. Here are the bugs that actually taught me something. Most "I built a game" posts show you the finished thing. This one is about the parts that broke, because those are the parts
What is Debouncing? Debouncing is a programming practice that ensures a specific task is only executed after a set amount of time has passed since the last time it was triggered. Essentially, it waits for a "pause" in activity before performing an action, preventing a function from running too man
@puneetkumar2010 , @akhourianmolkumar The KODA Code Jam crowned its first Champion. Now, we're going bigger. Meet Scribe — the markdown formatter I built in 48 hours to solve a problem every developer faces: "Why does formatting code snippets and documentation have to be so annoying?" Scribe
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![MS MARCO click-translation expansion tables ("poor man's" DSSM) [P]](/storage/uploads/covers/2026/09/e103b8cf-9677-4c25-a839-2a5f01408c74.webp)
