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New articles about Front End development. JS, CSS, React, Vue, Angular and others! Russian tech blog: @five_a_m Admin: @jem_jem
Updated: 2026-08-23
Blocked aria-hidden: The Warning is Right, and Every Fix You’ve Found is Wrong The warning is correct. And the recommended fixes you've probably seen are wrong. Here's what you can…
Migrating a Large Flow Monorepo to TypeScript https://engineeringblog.yelp.com/2026/08/migrating-a-large-flow-monorepo-to-typescript.html
Build an AI Agent with Real-Time Web Search in JavaScript Large language models (LLMs) are great at answering questions, but they have an important limitation: they don’t inherentl…
Scroll Axis Lock Go off the scroll rails with one CSS property https://nerdy.dev/css-scroll-axis-lock
Delayed-Then-Instant Tooltips with HTML & CSS Alone https://master.dev/blog/delayed-then-instant-tooltips-with-html-css-alone/
Progressive Enhancement inside of JavaScript Lately I've had the opportunity to travel by train and coach, during which time I also tend to work. It's really only during these peri…
The Intersection Observer API An in-depth tutorial on the Intersection Observer API: entries, thresholds, rootMargin, lazy loading, infinite scroll, scrollspy, visibility tracking,…
Animating CSS border-image Border images are an overlooked feature. One neat fact is that border image slices can run across entire borders on an element, and animating it creates …
A head-to-head of how Backpack and Phantom advertise on Telegram — the Solana-rooted exchange-and-wallet versus the leading self-custody wallet, their creative and targeting differences, and what the Telegram Ads Spy archive reveals.
How advertisers reach Belgian audiences on Telegram — one of Europe's toughest gambling and ad-restriction regimes pushing operators offshore, a Dutch/French/German language split, and EU-regulated crypto and trading.
How advertisers reach Irish audiences on Telegram — an English-speaking EU member inside the UK-Ireland creative pool, a fintech and tech-HQ hub, EU-regulated crypto and forex, and offshore gambling under a tightening licensing regime.
How advertisers reach Korean audiences on Telegram — the real-name banking regime that pushes activity offshore, one of the world's most intense retail-crypto cultures, gaming and esports adjacency, and won-denominated payment friction.
Flags — the regions we asked our observer pool for while recording this ad in this channel. That is a label on our request, not a confirmed place of viewing: when no account is available in the requested country the pool silently substitutes another and does not say so. It is not the advertiser's targeting country either. We stopped requesting the region on {date}, so newer creatives carry no flags at all. The channel's main country (by its language) is highlighted in blue; regions under 5% are collapsed into +N.