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Every frontend framework has to solve the same foundational challenge: when data changes in memory, how does the framework know which pixels on the sc
From Buggy Prototype to Polished Arcade: How I Upgraded Three Browser Games Over the past few days I've been deep in the trenches refactori
A footstep effect has two separate rates: how often the character asks for a puff, and how many particles each puff emits. Keeping those separate make
Request/response is how a microservice system starts, and events are how it stops being a distributed monolith. The moment orders has to call mailer,
A loan calculator that only prints a monthly payment is missing the part people usually need: how much of each payment buys down principal, how much i
I run a small analytics service for Figma plugins. One of the numbers people want from it is session length: how long the plugin panel stayed open. T
Ninety-seven malware advisories were published to the GitHub Advisory Database yesterday: 94 npm packages and 3 PyPI. I pulled them with type=malware
Hey DEV! I'm launching Trencada on here — https://trencada.com — a collection of 380+ free online tools for everyday tasks: PDF tools (merge, compres
TL;DR: Use next-intl for Next.js App Router apps: it translates in Server Components, ships locale routing and middleware, and uses ICU MessageFormat
As React applications grow, passing data through multiple components can quickly become difficult to manage. A value that starts in a parent component
Your Node.js API gets slow. The database looks fine. So do the downstream services. Yet p99 latency has tripled and even the health check takes 300ms.
The creator of One almost didn't post it. Nate Wienert, the guy behind Tamagui, opened his own Show HN with this line: "HN has really soured on fronte
What Is a Review Storm Analyzer? A shared spreadsheet that only one person knows how to work stops scaling the week a launch floods your te
In the previous post I showed how I test SMS OTP flows in Playwright without sending real texts. A few people asked about Cypress, and Cypress needs o
Cuando se modela una multa de tránsito, lo primero que aparece es un campo debe: true/false. Es el error más común. Una infracción pasa por etapas, y
An .eml file is a saved email. Open one and you get raw MIME: headers, a plain-text part, an HTML part, maybe some base64 attachments. The HTML part i
One of the most upvoted posts on Hacker News this weekend was an essay titled "Passkeys are a trap. Do not use them." Its argument is not that passkey
🔥 30 Days of Frontend — Day 4: Memoization in React
A compound-interest formula can give you a final number quickly, but it can also hide whether deposits happen monthly, annually, or not at all. I buil
Add a markdown editor to a Blade form the usual way and it looks fine, until the form silently refuses to submit: {{ old('content') }} //