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18 headlines · 4 outlets · 2011-12-07 → 2026-10-04 · Wikipedia ↗ · 🔒 Follow
Every day, developers, lawyers, and founders paste confidential source code, customer records, and internal business metrics directly into ChatGPT, Claude, and Gemini . When you paste raw client data like "Sarah Jenkins from TechNova GmbH paid $45,000" into public LLM chats, that private…
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What if you could send a file from one device to another with no cable, no Bluetooth and no cloud upload, using only a screen and a camera? That was the idea behind QR File Transfer , a small project I built with Spring Boot, MySQL and plain JavaScript. The sender's screen plays a stream of QR…
In a small retail shop, a fast billing screen beats a heavy app. Here is a minimal point-of-sale billing page you can run in any browser — no frameworks needed. 1. The layout Two columns: product buttons on the left, the running bill on the right. <div class= "pos" > <div class= "products" >…
consultar el dólar BCV con JavaScript Si estás desarrollando una aplicación web para Venezuela y necesitas consultar automáticamente la tasa del dólar del Banco Central de Venezuela (BCV), una API JSON permite hacerlo sin tener que extraer el dato directamente de una página HTML. En este tutorial…
If you've scrolled through dev.to lately, you've probably seen headlines like "Say goodbye to try/catch!" promoting a new JavaScript operator: ?= , the safe assignment operator . It's a neat idea, and worth understanding. But before you rewrite your codebase, there's an important caveat: you can't…
