Tech News
All News AI & ML Architecture DevOps Open Source Programming Team Management Testing & QA Web

Testing & QA

⚑ Report a Problem

Latest 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
All EN RU
EN

Open Graph Image Sizes and Dimensions: The Complete 2026 Guide

When you paste a link into Slack, X, or iMessage and it unfurls into a rich card with a big image, that image comes from your page's Open Graph tags. …

webdevjavascriptseohtml
Dev.to Jun 16, 2026, 22:19 UTC
EN

How to E2E Test SendPigeon Email Workflows in Playwright

When you integrate SendPigeon into your app, you get three stages of email testing. Each stage solves a different problem. This guide walks through al…

playwrighttestingjavascriptwebdev
Dev.to Jun 16, 2026, 22:04 UTC
EN

Why PDF generation breaks in production (and why localhost lies)

PDF generation is one of those things that works perfectly… until real users touch it. On localhost: npm run dev Open Chrome → print → PDF. Done. Then…

webdevjavascriptbackendsass
Dev.to Jun 16, 2026, 20:44 UTC
EN

TypeScript Without tsc in 2026: Type-Stripping in Node.js 24, Bun, and Deno Compared

TypeScript Without tsc in 2026: Type-Stripping in Node.js 24, Bun, and Deno Compared The End of tsc: Why Type-Stripping Changed Everything in 2026 Mos…

typescriptnodejavascriptwebdev
Dev.to Jun 16, 2026, 18:18 UTC
EN

Stop Parsing PDFs at Render Time: A Better Architecture for Structured Extraction

TLDR: The reason most frontend PDF extraction is wrong is that developers try to infer document structure from the rendered visual output instead of f…

pdfjavascriptwebdev
Dev.to Jun 16, 2026, 14:30 UTC
EN

Handling Shadow DOMs in Agentic Scraping Workflows

TL;DR Web components encapsulate UI and data inside Shadow DOMs, hiding it from standard parsers like BeautifulSoup and document.querySelector . To ex…

dataextractionjavascriptplaywrightautomation
Dev.to Jun 16, 2026, 10:32 UTC
EN

The Day AI Argued With MDN (And Lost)

AI coding assistants have changed how we write software. They generate components, explain APIs, write tests, and even review pull requests. But there…

aiwebdevprogrammingjavascript
Dev.to Jun 16, 2026, 09:33 UTC
RU

Frontend Status: свежий дайджест фронтенда и AI — 15.06.2026

Привет! Это 18 выпуск Frontend Status — дайджеста по фронтенд-разработке. В этом выпуске: 📺 Экосистема TanStack кажется бесконечной, а browser gaming …

javascripttypescriptcssreactangularvue.jscss3браузерыnode.jsux
Habr Jun 16, 2026, 07:41 UTC
RU

Frontend Status: свежий дайджест фронтенда и AI — 15.06.2026

Привет! Это 18 выпуск Frontend Status — дайджеста по фронтенд-разработке. В этом выпуске: 📺 Экосистема TanStack кажется бесконечной, а browser gaming …

javascripttypescriptcssreactangularvue.jscss3браузерыnode.js
Habr Jun 16, 2026, 07:40 UTC
EN

TypeScript 6.0 Released: The Last JavaScript-Based Version — New Features, Breaking Changes, and Migration Guide

TypeScript 6.0 Released: The Last JavaScript-Based Version — New Features, Breaking Changes, and Migration Guide TypeScript 6.0: The End of an Era and…

javascripttypescriptprogrammingwebdev
Dev.to Jun 16, 2026, 01:36 UTC
EN

How I Built a Zero-Dependency Token Compressor for AI Coding Agents (During My High School Exams)

as developers, we are spending more and more time working alongside AI coding agents like Cursor , Claude Code , GitHub Copilot , Windsurf , or Cline …

aijavascriptnodeopensource
Dev.to Jun 15, 2026, 20:37 UTC
EN

I built a JS/TS runtime in Rust where nothing runs without your permission

Last week I shipped v2.0.2 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…

rustjavascriptsecuritynode
Dev.to Jun 15, 2026, 16:39 UTC
EN

I built a JS/TS runtime in Rust where nothing runs without your permission

Last week I shipped v2.0.0 of 3va — a JavaScript and TypeScript runtime written in Rust. Here is why I built it and what makes it different from Node.…

rustjavascriptsecuritynode
Dev.to Jun 15, 2026, 16:29 UTC
EN

OTP Verification in Playwright Without Regex

Every developer who has written a Playwright test for OTP verification has written this line: const otp = email . body . match ( / \b\d{6}\b / )?.[ 0 …

webdevplaywrighttestingjavascript
Dev.to Jun 15, 2026, 15:36 UTC
EN

Why recording video in the browser is harder than it looks

Hey folks! In this article, I want to share our experience building a screen recorder inside the browser. The product is Browser Recorder , a Chrome e…

javascriptchromeperformancewebdev
Dev.to Jun 15, 2026, 15:26 UTC
EN

Build scrub-bar thumbnail previews with FFmpeg and a WebVTT sprite

TL;DR We're going to add hover-preview thumbnails (the little image that follows your cursor on a video scrub bar) to a player. Backend is one FFmpeg …

videoffmpegwebdevjavascript
Dev.to Jun 15, 2026, 09:32 UTC
EN

LLM Cost Optimization: How We Cut Reply Generation from $0.011 to $0.0009

When we shipped the first version of AI-generated replies for HelperX , each reply cost us about $0.011 in API spend. That sounds tiny until you multi…

aillmjavascriptnode
Dev.to Jun 15, 2026, 05:21 UTC
EN

# I Built a Full Stack Academic Management System for My College — Here's How

I Built a Full Stack Academic Management System for My College — Here's How For my B.Tech final year project, me and my team built Student Sphere — a …

webdevjavascriptnodemongodb
Dev.to Jun 15, 2026, 04:08 UTC
EN

How to Build One Web App That Works on iOS, Android, and Desktop

I was working on a project a while back where the users had to use the app in three different places. They needed to use it on desktop computers at th…

javascriptmobiletutorialwebdev
Dev.to Jun 14, 2026, 20:21 UTC
EN

I built an offline wiki that fits in a single 19 KB HTML file

I kept hitting the same wall looking for an offline wiki. Kiwix is great, but it's an app plus multi-GB ZIM files. IPFS needs connectivity and setup. …

opensourceshowdevwebdevjavascript
Dev.to Jun 14, 2026, 19:42 UTC
EN

Bun rewrote itself from Zig to Rust using an LLM in 9 days. That should terrify you.

A major runtime just got machine-translated to a completely different language and merged in under two weeks. Let me say that again slowly. Bun, the J…

aijavascriptrustopensource
Dev.to Jun 14, 2026, 13:10 UTC
RU

[Перевод] Немного магии: как устроен API фикстур в Playwright

Playwright использует довольно необычный подход в реализации своего JavaScript API для фикстур. Чтобы понять, как это работает, мне пришлось заглянуть…

javascriptplaywrightapinode.js
Habr Jun 14, 2026, 11:02 UTC
EN

Generating valid .ics calendar feeds at build time

A few weeks ago I shipped a feature I'd been putting off because it felt like it needed a backend: subscribable calendar feeds. "Add this holiday to G…

javascriptnextjstutorialwebdev
Dev.to Jun 14, 2026, 03:45 UTC
EN

Why I Replaced a Node.js Service with 30 Lines of Bash — and When You Shouldn't

A few months ago I had a small job to automate: every day, take a list of URLs from my site and notify Google and Bing that they'd changed, so new pag…

automationdevopsjavascriptnode
Dev.to Jun 14, 2026, 01:24 UTC
EN

I built an SEO-first internet radio site — and learned why `curl` can't validate audio streams

I recently built Radio Balkan — a single-page web player that puts 750+ Balkan radio stations in one place: no ads, no sign-up, no cookie banners. It'…

webdevjavascriptsupabaseseo
Dev.to Jun 13, 2026, 21:18 UTC
EN

JSONata Explained: Query and Transform JSON Without the Boilerplate

Working with complex JSON payloads can quickly become a nightmare. You end up chaining .map() , .filter() , and .reduce() calls across multiple lines …

javascriptwebdevjsonproductivity
Dev.to Jun 13, 2026, 18:26 UTC
EN

Behind the Green Tests: My Honest HNG Internship Experience

Over the past two years, I've been a laravel developer. I've been so stuck with this framework that I felt like I didn't know much about actual progra…

softwarewebdevprogrammingjavascript
Dev.to Jun 13, 2026, 11:21 UTC
EN

MediaPipe Hand Tracking & Face Detection in JavaScript

A beginner MediaPipe JavaScript example: build a rainbow drawing app in the browser. No npm, no backend, one HTML file. Try the live demo What You'll …

mediapipewebcamwebgljavascript
Dev.to Jun 13, 2026, 10:43 UTC
EN

Idempotency Is More Important Than You Think

Most developers don't think about idempotency until production breaks. That's not because idempotency is an advanced concept. It's because everything …

webdevprogrammingproductivityjavascript
Dev.to Jun 13, 2026, 06:21 UTC
EN

The Best JavaScript Slider Library? Introducing Pagiflow: A Zero-Dependency, High-Performance Carousel

Have you ever noticed how quickly a web page's performance can drop when you add a slider or carousel? For years, web developers have had to choose be…

javascriptwebdevopensourcereact
Dev.to Jun 12, 2026, 17:32 UTC

© Tech News — Headline Aggregator

Sitemap Legal Notice Privacy Terms Copyright / Removal DSA Contact

Leaving the site

You are about to open an external website:

Continue →