Mar 4 ยท 5 min read ยท Jest has been the default JavaScript test runner for years. But it was designed for CommonJS and requires significant configuration to handle modern ESM, TypeScript, and Vite projects. Vitest was built from the start for the modern JavaScript ecosyst...
Join discussionMar 3 ยท 6 min read ยท Testing Frameworks Compared: Jest, Vitest, Bun Test, and Playwright Choosing a test framework used to be simple: you picked Jest. Now there are genuinely good alternatives, each with different strengths. This guide compares the main options, covers d...
Join discussionFeb 12 ยท 3 min read ยท Vitest Browser Mode: Test Real Browser Behavior Fast The Challenge I Faced Three months ago, I was debugging the same issue over and over. Then I discovered this solution. Table of Contents Why This Matters Core Concepts Explained 5 Essential Patter...
Join discussionFeb 10 ยท 15 min read ยท Testing is one of those things that every developer knows they should do, but many put off until problems start appearing in production. If youโre building React applications with Vite, there's a testing framework that fits so naturally into your wor...
Join discussion
Jan 27 ยท 3 min read ยท If youโve been following the Angular ecosystem lately, you know that the "old way" of doing things is rapidly evolving. Weโve moved to Standalone Components, embraced Signals, and explored Zoneless applications. But for a long time, one piece of the ...
Join discussion
Jan 5 ยท 4 min read ยท ๋ค์ด๊ฐ๋ฉฐ ํ ์คํธ๋ ์ด์ โํ๋ฉด ์ข์ ๊ฒโ์ด ์๋๋ผ์ ํ๋ฉด ๋ถ์ํ ๊ฒ์ด ๋์์ต๋๋ค. ํ์ง๋ง ์ฌ์ ํ ๋ง์ ๊ฐ๋ฐ์๋ค์ด ์ด๋ ๊ฒ ๋๋๋๋ค. TDD๋ ์ด์์ ์ธ๋ฐ, ํ์ค์์๋ ๋๋ฌด ๋๋ฆฐ ๊ฒ ๊ฐ๋ค Jest ์ค์ ์ ์ ์ ๋ณต์กํด์ง๋ค Rollup ๋ผ์ด๋ธ๋ฌ๋ฆฌ์์๋ ํ ์คํธ๋ฅผ ์ด๋๊น์ง ํด์ผ ํ ์ง ๋ชจ๋ฅด๊ฒ ๋ค ์ด ๊ธ์์๋ ์ด๋ฐ ๊ณ ๋ฏผ์ ์ ์ ๋ก, Vitest๋ฅผ ์ด์ฉํด โํ์ค์ ์ผ๋ก ๋์๊ฐ๋ TDD ๊ฐ๋ฐ ํ๊ฒฝโ์ ๊ตฌ์ถํ๋ ๋ฐฉ๋ฒ ์ Rollup ๊ธฐ๋ฐ TypeScript ...
Join discussionDec 6, 2025 ยท 4 min read ยท You're running browser tests in your Next.js app with Vitest, and suddenly you're hit with a cascade of Vite pre-transform errors. This time for me it was a next-auth import type error and I couldn't figure out why, since I was importing the types on...
Join discussion
Dec 4, 2025 ยท 21 min read ยท Why I Chose Vitest Over Jest: 10x Faster Tests & Native ESM Support Ever waited 20 seconds for your tests to run, only to realize you made a typo? Yeah, me too. That's why I ditched Jest. After migrating my React component library to Vitest, my tests...
Join discussionNov 10, 2025 ยท 3 min read ยท ๐ Quick Summary: The vitest-react-profiler repository provides utilities for tracking React component renders and performance testing within Vitest. It allows developers to precisely measure render counts, monitor performance, detect render phases, ...
Join discussion