Jest 30 has just shipped. It's faster, uses less memory and brings new testing APIs.

Having users keep a list of ESM-only dependencies to ignore "transform" on is the, as advertised, delightful Jest experience? As a maintainer of ESM-only modules I am not delighted being the support channel for @jestjs_ users who struggle to use web-compatible ESM modules.

Jest 30 is releasing soon. Please try `jest@next` and report how much it improves on performance and memory consumption!.

Watch @MuseBj48222, and I test a @Reactjs app in under a minute using @Jestjs_ 👇. 🔗 Full video:

Tools die but ideas don't! @vitest_dev and @vite_js are amazing tools that re-imagine older tools (@jestjs_ + @webpack). Catch the full ep w/@cpojer this Friday!

Hey Everyone,.What is the preferred #JavaScript Testing Framework?. @jestjs_ .#Mocha.@Cypress_io

⚛️ Why did @facebook open source @jestjs_? . Join us this Friday as we talk to @cpojer about all the amazing projects he's worked on and his next chapter

Thanks ⁦@cpojer⁩, #unrs_resolver migration is now merged into ⁦@jestjs_⁩! 🥳. I'll do some even more improvements/optimizations soon later! 🤩

Day 45 #100DaysOfCode .Testing in React with @jestjs_ and React Testing Library. Embracing the "power of testing" 🦸🏾‍♀️ Today felt like familiar ground, the journey from clueless to confident continues. #WomenWhoCode #BlackGirlsInTech #GirlsWhoCode

Did you know that Reporter has advanced functions? 👇 . Add more artifacts, logs and steps to your test results. Supported for:.@playwrightweb.@CodeceptJS .#Cucumber .@jestjs_ .#Mochajs. Cool 😎 Huh?!

I made my own test-runner because tools like @vitest_dev and @jestjs_ didn't quite fit my use-case. It's both pretty simple and very difficult if you're not using a build system. Because Async Context is not a thing in JS yet (stage 2 @TC39), I used hacky Error stacks.

When @jestjs_ will make a new release ?. the last release was 2023

Product Digest #102.#Zarthi is out on a mission to inform the community about the #technologies we use on a daily basis. We are covering 365 #products for 365 days of the year. Drop us a follow and start your mornings with Zarthi #ProductDigest!. #testing #js @jestjs_

Just crafted my first testing code for an Express API using @jestjs_ 🚀.#Jest #Testing

✅ No matter your #javascript #testing framework — @jestjs_, @vitest_dev, @nodejs:test, . — "mocks"/stubs are rarely as type-safe as you think. 🗺️ It is NOT just a technical issue — it is a testing strategy problem. 🩹 You can keep patching. or just go fake 😉. 📖

Jest 30 has launched! It brings massively improved ESM and TypeScript support! .

📣 Detox v20.40.1 is out with full support for the recent @jestjs_ v30 release!.

@_panva @jestjs_ The only answer to jest user is to… stop using jest.

Ever wondered why many @jestjs_ setups use "--maxWorkers=50%"?