Daily edition · JavaScript
TILens turns technical updates into a focused daily brief: official releases, trusted reporting, and practitioner analysis, deduplicated and organized by topic.
44 articles · 2 sources ·
Top topics: JavaScript · AI · PostgreSQL
Shipping a profitable Manifest V3 Chrome Extension in 2026 comes down to solving two engineering problems that trip up most solo developers: Host-Page CSS Collision: Injecting a floating toolbar, sidebar, or inline…
Modern B2B SaaS procurement and frontend engineering share a common blind spot: silent state transitions. On the procurement side, SaaS billing systems use silent seat promotions ("zombie seats") and 30-to-60-day…
Every engineering team building with Claude Code, Cursor, or v0 eventually hits the same visual wall: unless you constrain the model at the token level, every generated interface converges on the same generic template.…
Print a QR code from most "free QR generator" sites and two things happen that nobody mentions at the counter: the code does not point at your URL, and the company keeps a kill switch. The code points at their redirect…
Between Wappalyzer/BuiltWith ($99–$295/mo), UI/CSS inspection tools, and technical SEO browser plugins, B2B founders and growth engineers easily burn $290+/month on browser extensions that either lock basic exports…
XState v5 shipped in December 2023, and its migration guide lists a breaking change that is easy to miss: implementation functions now take a single object argument with context, event and other properties. Code written…
Every bookkeeper knows this dance: the bank gives you a CSV, QuickBooks wants a different CSV, Xero wants a third one. Date formats flip (MM/DD vs DD/MM), debit and credit live in one signed column or two, and the payee…
NestJS 12 is the first major release of the Node.js framework since v11. It was released on August 27, 2026, and 12.1.3 is the current version. The headline changes are ESM-only packages, built-in Standard Schema…
I recently built Wordlyo, a free word counter, as part of a small suite of text tools. No backend, no database, no tracking — everything runs in vanilla JavaScript in the browser. It was a small project, but it taught…
Consider this small delimited file: id,name;label 1,A;B With a comma delimiter, it has two columns: [ ["id", "name;label"], ["1", "A;B"] ] With a semicolon delimiter, it also has two columns: [ ["id,name", "label"],…
A CSV import can have the right number of columns and still contain damaged text. The damage may happen before the CSV parser receives a string. JavaScript's TextDecoder replaces malformed byte sequences by default.…
Most flaky tests in agent-authored patches are not mysterious. They read a clock somewhere in the call path, and the assertion compares two readings that were never taken at the same instant. Freezing that test turns…
A small browser game with a focused loop I built a simple landing page for Martin No Filter Fighters, an unofficial fan-made browser fighting game. The goal was to keep the page focused: open it, start the game, and…
A small filter should not decide whether a visitor can reach a service page. In the Laravel storefront I run, Blade renders the available service cards and their links. JavaScript narrows that list. It does not fetch or…
Monday, September 8, 2025 A maintainer of some of the most-used packages on npm gets an email. It says their two-factor settings need updating before the 10th. The link looks like npm. It isn't. Minutes later, new…
VedaX VedaX turns Vedic Mathematics into a structured learning journey — helping learners learn techniques, practice with purpose, understand their mistakes, and build mastery. Learn the technique. Practice with…
From a fresh Termux terminal to a real, inspectable JavaScript analysis report. No desktop computer, no API key, no AI account required. What this guide does: installs the published sentinel-ir@0.1.1 package,…
I write a small zero-dependency library, llm-stream-guardrails, that strips secrets and PII out of an LLM's output stream before it reaches a screen or a log. Last week it was leaking a private key. This is the bug, how…
I spend a lot of time on DEV these days. Reading posts, finding interesting projects, participating in challenges, and occasionally writing something myself. I also like daily.dev. Having a feed of developer content…
The Dynamic Duo of the DOM: Mastering Resize Observer and Mutation Observer Ever felt like your web page was a shy chameleon, struggling to adapt to its ever-changing environment? Maybe you’ve battled with JavaScript…
Showing 1 day · 44 items available
