Building a Browser-Based Line Break Remover with Local-First Text Processing
Removing line breaks looks like a one-regex job. text.replace(/\n/g, '') and you're done. Then real text shows up, and it turns out line endings are a…
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Responsive Design With Bootstrap 5: Tips That Actually Make a Difference
Bootstrap 5's responsive system is more capable than most developers use. Everyone knows col-md-6 . Fewer people know the patterns that make the diffe…
Приложение открывается только с VPN. Разбирался почему
Пользователи из регионов начали писать в поддержку одно и то же: приложение не открывается. Симптомы у всех разные. У кого-то вечная загрузка, у кого-…
Building a Browser-Based Sentence Counter with Local-First Text Processing
Many text utilities are simple enough to run entirely in the browser. A sentence counter is a good example. The browser already has everything it need…
Part 4: When an Angular Component Becomes Too Large to Maintain
Part 4 of the Angular in Production series One thing I've noticed after working on larger Angular applications is that components rarely becomes diffi…
Опенсорсная Весёлая Ферма: поднимаем preview‑окружения без боли
Каждый пул‑реквест хочется не просто проверить тестами, а показать вживую — дизайнеру, менеджеру, соседней команде, чтобы все они смогл…
React Compiler in Production: Adoption, Measurement & Safe Rollout
Start with a user-facing performance baseline The compiler optimizes how React derives and reuses UI, so its value is most visible in interfaces that …
Frontend Observability for Startups: Choosing Tools That Actually Save You Time
How modern frontend teams can use observability tools like Sentry, SonarQube, and LogRocket to debug faster, write cleaner code, and stop bugs before …
Feels like a feature until it's infrastructure
A while ago I wrote about pricing logic and why it deserves to be treated as infrastructure instead of a pile of UI code. This is the same lesson, cau…
Фиксатон VK: как мы за три дня обработали 1500 багов в 12 продуктах и довели 420 фиксов до прода
Привет, Хабр! Я Оля Шишенина, отвечаю за обучение и развитие сотрудников VK. Хочу рассказать про внутреннее мероприятие для инженеров, которое мы пров…
Design a Health Dashboard That Exposes Uncertainty and Connection Errors
A lab card says “No data,” but that phrase could mean no matching record, a disconnected source, a delayed refresh, a filter mismatch, or a request fa…
How to structure CLAUDE.md, Skills and Agents
Hi friends Here's a tip for when you're setting up Claude Code (or any coding agent) in a real codebase, this came in clutch for me when I discovered …
# 📓 TanStack Query: Core Concepts & Summary
1. Introduction: What is TanStack Query? TanStack Query (formerly React Query) is a framework-agnostic state management library designed specifically …
Frontend-Only SaaS: The Rise of Static Utility Sites
Frontend-Only SaaS The combination of fast browser APIs (Web Crypto, Workers, WebAssembly) and generous third-party APIs (mail.gw, webhook.site) means…
4 ways canvas text rendering breaks in multilingual apps (that en/ja testing will never catch)
I run a large fleet of "preview it, then download it as PNG" web tools — name tags, certificate generators, price cards, badges — in five languages: J…
Our login hung for exactly 10 seconds. Our own security headers did it.
For about a week, returning users who opened our portal watched the word "Loading…" sit on the screen for ten seconds before the login page appeared. …
I REBUILT MY SITE WITH ASTRO & SANITY
A couple of years ago, when I was deciding which platform to use for web development projects, I was very keen on the idea of using Webflow. It felt l…
Tailwind CSS v4: Architecture, Features, and Performance Upgrades Deep Dive
Originally published on tamiz.pro . Tailwind CSS has fundamentally changed how many developers approach styling web applications. With the impending r…
Keep Keyboard Focus Stable When a Virtualized Grid Recycles Its Rows
A keyboard user focuses row 40, column 3. Scrolling recycles that DOM node. Focus falls to <body> , while a screen reader announces the wrong ro…
Modern Frontend Testing Is Mostly About State, Timing, and Geometry
Frontend testing used to sound simple: open a page, find an element, click it, and verify the result. That description still works for basic workflows…
The redesign shipped. The smoke test kept walking the old UI.
Originally published at nlqdb.com/blog Our acceptance walkers pin literal UI strings on purpose. A walker asserts the homepage placeholder reads exact…
The Liquid you lint isn't the Liquid Shopify runs
shopify theme check passed clean. The validator I run before every commit passed too. Then I opened the page on the dev store, and a size chart that b…
Stop Uninstalling Your App to Test Staging and Production: A Proper Multi-Environment Setup for Mobile Development
reactnative #expo #mobile #frontend If you've worked with a web app before, you know how convenient it is to run staging/development and production si…
Build an Accessible Code Diff With One Reading Order and Navigable Hunks
A side-by-side code diff is visually efficient. It can become incoherent when assistive technology reads the entire old file and then the entire new f…
"Why I Build Serverless, Client-Side Utilities: The Architecture of QuickQR and ARTRES"
In a development culture obsessed with heavy frameworks and complex backend infrastructure, there is massive, untapped power in pure client-side execu…
auto-animate now speaks marko
As of @formkit/[email protected] , the library ships an official Marko adapter ( PR #239 ). If you write Marko 6, you can now get animated list addi…
Query, Mutation, and Stream Are Not the Same Kind of Async Work
In the previous article, I discussed a common but dangerous oversimplification: Async work should not be reduced to Promise.resolve() followed by setS…
Ng-News 26/17: PrimeNG's New Licensing, and A2UI for Angular
PrimeNG's new licensing model and A2UI for model-controlled Angular interfaces are the headline topics this week. Also in brief: OpenNG's community fo…
Your dropdown is a div. The browser has a native popover now.
You've written some version of this before: function toggleMenu () { setOpen ( prev => ! prev ); } useEffect (() => { const handler = ( e ) =>…
Managing Dependencies in Legacy Front-end Projects: A Practical Guide to Cleaning Up a Messy package.json
A practical walkthrough of auditing, updating, and replacing dependencies using Yarn . Front-end projects rarely become hard to maintain overnight. In…