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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: 2026-08-24
Frontend Dependency Injection: From Context API to Composition Root https://itnext.io/frontend-dependency-injection-from-context-api-to-composition-root-20eedaf8593d
Balancing flex items with flex-wrap: balance A look at how flex items wrap and how to balance them across lines. https://ishadeed.com/article/flex-wrap-balance/
Every major browser engine is converging on JPEG XL. Keep your fallbacks anyway Safari already decodes JPEG XL and Firefox targets default support in version 157, but Firefox's SDR…
How to group array items with Object.groupBy() Group an array by a property with Object.groupBy() instead of a reduce loop. See a realistic expense example and Map.groupBy() for ob…
High-Frequency Real-Time Data in React: From Ring Buffers to OffscreenCanvas React is great at many things. But if you've ever tried pushing thousands of data points per second thr…
CSS:the bomb inside your inbox Gareth Heyes - [email protected] - @garethheyes It's quite common for webmail clients to render untrusted CSS in a trusted UI. They attemp…
My HTML boilerplate in 2026 Every element I use for the basic structure of a HTML document, with explanations why. https://www.matuzo.at/blog/2026/html-boilerplate
Almost nobody pays attention to web standards anymore Are web coders losing their respect for standards? A recent review of the world’s largest sites sugg ... https://www.devclass.…
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.