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"Never put a JWT in localStorage" is the most repeated piece of frontend security advice and the least measured. So I measured it. 258,117 source files. 1,423 touch web storage — that is the denominator, found by reading source text before any rule…
I measured fourteen lint rules against a real codebase. Six found nothing. The tempting move is to switch those six off. The report says zero, zero looks like dead weight, and a shorter config is easier to defend. That instinct…
A debugging war-story about async def, a blocking call, and the event-loop trap that makes a fast framework crawl. The alert came in at the worst possible time, the way they always do. Our FastAPI service (the one we'd migrated…
Here is the entire job of a package called is-promise: One function. It checks whether something looks like a Promise. In April 2020, it was being downloaded around 12 million times a week. GitHub counted about 3.5 million projects depending on it, mostly…
By Mikhail Oskola, founder of Retailbox Automation. A contact record's value usually isn't the name and email - it's the years of notes, emails, and call logs attached to it. Most migration tools move the object cleanly and leave the timeline…
The truth is that DRF validation is a small, orderly pipeline. Data comes in, passes through three distinct levels of checks in a specific sequence, and comes out the other side as clean validated_data you can trust. Once you know the…
TestMu AI (formerly LambdaTest), the Full Stack Agentic AI Quality Engineering platform, announced real device support in Kane CLI. Developers can now test a mobile app on a real phone or tablet in the TestMu AI cloud straight from the terminal:…
Windows stores temporary files in several places -- both on a per-user and per-system basis. While these locations are documented, they're not always well understood, especially in terms of which kinds of temporary files are stored in which folders. It's important…
Before you import a lead list or send a campaign, you want to drop the junk: typos, fake domains, throwaway inboxes. Many verifiers do this by opening SMTP connections to each mail server, which is slow and often gets IPs…
Uploading a file is straightforward. Keeping its bytes, metadata, permissions, history, and copies on several intermittently connected devices consistent is the real system-design problem. Consider a document named report.docx. You edit it on your laptop, close the lid halfway…