Topic - Edition
I run a small click speed test, CPSBench. Once a site has a leaderboard, the first entries that look too good arrive almost before the real ones do. I can't see anyone's hand. The browser gives me a list of numbers:…
Disclosure: Album Map is the product associated with this account. This tutorial was prepared with an AI agent, and the JavaScript example was executed before publication. A travel video needs a clear relationship…
Why an AI‑Generated Podcast? Podcasts are exploding, but producing a high‑quality episode still means spending hours on scripting, recording, editing, and post‑production. What if you could automate most of that…
Have you ever stopped to think about where your files go when you use online PDF tools like Smallpdf, iLovePDF, or Adobe Online? If you are signing a sensitive NDA, merging tax returns, or compressing medical records,…
Deno Deploy has six months left. The Deno runtime has one year of patch releases, and then, in the announcement's own words, "we will end our development of the Deno runtime." The whole team is going to Cloudflare. Ryan…
Playwright is very good at following instructions. Tell it to click a button, it clicks the button. Tell it to fill an input, it fills the input. Give it a test with 40 steps and, assuming the page behaves, it'll run…
As of October 8, 2026 "\u{1F44D}\u{1F3FD}".length is 4. A reader looking at the resulting single modified thumbs-up symbol sees one symbol. JavaScript sees four UTF-16 code units. Neither observation is broken; they…
Regular expressions are useful for input validation, text extraction, log analysis, and everyday JavaScript development. But copying a regex from the internet without understanding its limitations can create unexpected…
Most chains let anyone push a token balance into any address for free. That is why "holders" is a nearly meaningless metric almost everywhere — an airdrop to 100,000 addresses costs the sender gas and nothing else. The…
If you are building financial software, fintech applications, or double-entry accounting ledgers in TypeScript, we need to have an uncomfortable conversation. Every single day, senior engineers write code like this:…
Converting JPG to PPTX isn't as straightforward as it seems; many developers overlook the need for an efficient API to handle this task. A poor approach could lead to image quality loss or formatting issues in…
A few days ago I had a simple, slightly weird idea: What if every string was just an array of single letters… and I could rebuild words, paths, and API links by pointing at index ranges? That experiment turned into…
If you've ever exported cookies with curl -c, yt-dlp, a browser extension or an antidetect browser, you've met cookies.txt — the Netscape cookie format. And if you've tried to import that file into something that…
Original: https://codingcat.dev/post/dockerless-serverless-gpus-fast-cheap-ai-saas-with-runpod-flash Commercial AI image generation APIs like Google Vertex AI charge 3 to 4 cents per generation. Spend $1, and you get…
⚡ TL;DR: Internalize the single-threaded event loop and the sync, microtask, macrotask ordering it enforces. That one model explains promises, event delegation, and why a long task freezes your UI, plus how to avoid…
A Steam wishlist campaign needs links that tell you which channel a visitor came from. Here is the small helper we use for our October studio posts. It generates one URL per game and channel, so the copy and the link…
Every Chrome extension I install asks for something. Read and change all your data on all websites, usually. So when I built five small developer utilities as extensions, I wanted to know how far I could get with the…
State Lifting in React When building a React application, different components often need to share the same data. Normally, each component can manage its own state using the useState hook. However, when multiple…
Series: Building PdfWord — a free, no-backend PDF tools site (Part 16) Nobody searches for "PdfWord." Why would they — it didn't exist until I built it. People search for "merge pdf without account", "compress pdf for…
Most hospital EMR systems treat clinical encounters as structured text or generic intake forms. When building Dentiva, a clinical management platform for dental practices, we hit an immediate engineering wall: dentistry…
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