How ESLint Actually Works: The Quality Gate Behind Modern JavaScript
A few days ago, I shared an article: You Don't Need Another Agent. You Need a Linter. Then I did what I do with anything I write: shared it around — a…
Testing & QA
⚑ Report a ProblemLatest Testing & QA news from Tech News
All topics
agents
ai
api
architecture
automation
aws
beginners
career
claude
cybersecurity
database
devchallenge
devops
discuss
javascript
llm
machinelearning
mcp
opensource
performance
productivity
programming
python
security
showdev
softwareengineering
testing
tutorial
typescript
webdev
CSS box-shadow: The Complete Guide to Multi-Layer Shadows
The box-shadow property is one of the most underused tools in CSS. Most developers use it for a single subtle drop shadow and stop there — but the ful…
Frontend Testing in 2026: The Problems That Actually Break Your UI
Frontend testing has become weirdly broad. A few years ago, a lot of teams treated it as "write some Cypress tests" or "run Selenium in CI." That was …
Micro-Frontends vs. Monoliths in 2026: A Real-World Performance Teardown
The architectural pendulum of frontend engineering has spent the last decade swinging violently. We watched the industry consolidate around massive mo…
BurnLink: An Open-Source End-to-End Encrypted File Sharing Platform
Executive Summary I built BurnLink, an open-source file sharing service that prioritizes privacy through client-side encryption and zero-knowledge arc…
The Day I Broke Production Because of an Icon
I'm a big fan of aviation, and one lesson from aviation safety has always stuck with me: accidents rarely happen because of a single mistake. Instead,…
60fps Real-Time Graphics: OffscreenCanvas in Next.js ⚡
The Interactive Dashboard Bottleneck Modern enterprise platforms at Smart Tech Devs demand high-density data visualizations. We build tracking spaces …
What I Learned After Building a Signal System from Scratch
Recap At this point, this series on Signals and fine-grained reactivity is temporarily coming to an end. This article will not introduce new technical…
Clean Architecture on the Frontend: Beyond Smart and Dumb Components
For a long time, frontend architecture meant one thing to me: split components into smart and dumb. Smart components fetch data, hold state, call muta…
Why we still hand-code marketing sites in 2026 (GSAP, no page builder)
Page builders won. Wix, Squarespace, Webflow, and Framer cover most small business needs in an afternoon. So why would anyone still hand-code a market…
From Rust CLI bug-hunting to a massive Portfolio overhaul
23 commits, 3 PRs, and a 7-day streak. This week was a balance of deep-diving into Rust CLI logic, refining my Neovim setup, and a massive +4,500 line…
My First React Project (Part 3): Reusable Components, Framer Motion Animation, and Key Lessons Learned
This is the third and final part of my first React project for the Frontend Mentor's Digital Bank Landing Page Challenge . I'm excited to say that I f…
The evolution of fetch libraries: from Promise to strategies
Introduction Frontend data fetching has gone through several paradigm shifts: from XMLHttpRequest callbacks, to Promise chains with fetch and axios, t…
Automating the Localization Pipeline: Extraction to TMS to CI
Designing a resilient end-to-end localization workflow Automating string extraction and reliable TMS integration CI/CD localization: keep translations…
Building a Self-Cheering Microservice: Observability-Driven Resilience in a Real-Time Analytics Pipe
Building a Self-Cheering Microservice: Observability-Driven Resilience in a Real-Time Analytics Pipe Building a Self-Cheering Microservice: Observabil…
Designing a Resilient Event-Driven Data Pipeline with Change Data Capture
Designing a Resilient Event-Driven Data Pipeline with Change Data Capture Designing a Resilient Event-Driven Data Pipeline with Change Data Capture In…
A Practical Guide to Building a Developer-Focused Internal Metrics Dashboard
A Practical Guide to Building a Developer-Focused Internal Metrics Dashboard A Practical Guide to Building a Developer-Focused Internal Metrics Dashbo…
Building a developer-friendly feature flag system: architecture, best practices, and a practical imp
Building a developer-friendly feature flag system: architecture, best practices, and a practical imp Building a developer-friendly feature flag system…
Building a Resilient Real-Time Chat System with WebRTC, Faye, and WebSockets: A Practical End-to-End
Building a Resilient Real-Time Chat System with WebRTC, Faye, and WebSockets: A Practical End-to-End Building a Resilient Real-Time Chat System with W…
Designing a scalable event-sourced analytics platform
Designing a scalable event-sourced analytics platform Designing a scalable event-sourced analytics platform In modern data systems, you often need to …
Building a Local-First Frontend State Sync with Conflict-Free Replicated Data Types (CRDTs)
Building a Local-First Frontend State Sync with Conflict-Free Replicated Data Types (CRDTs) Building a Local-First Frontend State Sync with Conflict-F…
Building a Real-Time, Event-Sourced Feature Flag System with Rust and WebAssembly
Building a Real-Time, Event-Sourced Feature Flag System with Rust and WebAssembly Building a Real-Time, Event-Sourced Feature Flag System with Rust an…
Building a Self-Healing Data Pipeline with Event-Driven Idempotence
Building a Self-Healing Data Pipeline with Event-Driven Idempotence Building a Self-Healing Data Pipeline with Event-Driven Idempotence A senior engin…
Visual regression testing for modern web apps: strategies, tooling, and a practical pipeline
Visual regression testing for modern web apps: strategies, tooling, and a practical pipeline Visual regression testing for modern web apps: strategies…
The Pragmatic Guide to Velocity-Driven Debugging for Modern Dev Teams
The Pragmatic Guide to Velocity-Driven Debugging for Modern Dev Teams The Pragmatic Guide to Velocity-Driven Debugging for Modern Dev Teams Debugging …
Building a Modern Software Engineer Portfolio: A Practical, Actionable Roadmap
Building a Modern Software Engineer Portfolio: A Practical, Actionable Roadmap Building a Modern Software Engineer Portfolio: A Practical, Actionable …
Building a Real-Time WebSocket-Based Chat Server with Rust and WASM
Building a Real-Time WebSocket-Based Chat Server with Rust and WASM Building a Real-Time WebSocket-Based Chat Server with Rust and WASM In this tutori…
Annotated Git Hooks: Automating Your Local Workflow with a Practical, Portable Hook System
Annotated Git Hooks: Automating Your Local Workflow with a Practical, Portable Hook System Annotated Git Hooks: Automating Your Local Workflow with a …
SVG Icon Accessibility: Decorative vs Meaningful Icons
SVG icons are everywhere in modern interfaces: buttons, menus, alerts, dashboards, empty states, navigation bars, and product UIs. They look small. Th…
Designing a Personal Engineering Niche: Building a Revenue-Grade Side Project Trail
Designing a Personal Engineering Niche: Building a Revenue-Grade Side Project Trail Designing a Personal Engineering Niche: Building a Revenue-Grade S…