Happy holidays all 🥳

`cat blob.json | jless` such a useful tool for visually browsing around a huge json file

thanks to hidden classes, deopts, etc. - did TypeScript actually do a bad thing by popularising tagged unions? 👀 maybe we should be pushing people to do this kind of thing more often if it'd help: ```ts { kind, value } // value is the variable shape thing ```

we released the new @e18e.dev ESLint plugin today! 🎉 this comes with 3 categories of rules: modernisation, performance, replacements it also works with oxlint and most of the rules have auto-fixes 🛠️ try it out and let us know any feedback/rule suggestions in discord/bsky/github!

fast-equals went from 280KB to 100KB in the last release! 🎉 we still use dequal in most places but this is handy for where you need to compare more complex values

Super happy to have found good people to help me move a bunch of important projects along 🙏 I was struggling to do all of this myself, but now we have a lot of awesome projects on the horizon 😍

i said i'd cut a release of something a week ago, but i seem to have forgotten what it was 😂

have a typed ESLint rule which passes locally but not in CI because all the types resolve to `{}` 😭 never encountered this before

thought i'd dig through the esm vs cjs dataset to see if there's any i can contribute a migration to many of the top few hundred, though, are packages we shouldn't even need anymore 😅

React is having a fun month isn't it 😅

More of this please 😄

Back in the UK 🥳 Belgium was good fun as ever!

Love a good SPA with a regular, separate API codebase 😅

To Antwerp I go!

Great day in London catching up with people. I need to do this more often 😀 so nice to see @orta.io @robpalmer.bsky.social @fabiospampinato.bsky.social and many more 🩵

Trying to review a heavily ai driven contribution is proving to be a slow process 😬

Had good fun doing a talk at a local meetup tonight 😄 maybe this can become a more common occurrence 👀

we're trying to come up with some good lint rules for performant syntax. if you have any ideas, let us know in the issue! ideally things which are provably faster or more efficient with memory across all engines

building another ESLint plugin 👀

Time to start planning my yearly get together 🥳

its so great seeing dependabot bump TSESLint and drop a whole bunch of dependencies because of it

the new @e18e.dev MCP server is here! this will advise agents on modern and performant best practices going forward. this is increasingly important, especially to help reduce "AI slop" and emit of outdated/legacy code big thanks to @paolo.ricciuti.me who is leading this 💙

churned out a bunch more codemods 👀 we'll add tooling around these ultimately but you can programmatically use them today. each one is a modernisation codemod, in that it migrates from older syntax to new

Thanks so much to those of you who reached out about helping lead some of the e18e projects 🙏 lots of progress already being made!

Got a very chilled out weekend ahead before a non stop week of socials 😄

chokidar 5 published 🎉 now ESM only! 185KB -> 105KB install size

we've started tracking the ongoing and upcoming projects better on the e18e site hopefully this gives a better idea of the things we're building!

new release of @bomb.sh clack! this one comes with a bunch of nice bug fixes, and `withGuide` if you want to use the prompts standalone

i have a growing @e18e.dev roadmap of very useful tools we could all benefit from to make it happen, we need two things: sponsors, and leads/champions 👀 if you're interested in either, come chat to me and i'd be happy to show you through the roadmap we have!

have been using preact for a side project recently and am thoroughly enjoying it the signals dev tools are super nice too. would love to see similar exist for other frameworks, even just to visualise the signal networks/flows

one downside of LLMs in OSS is _huge_ walls of text in issues, where the text does technically make sense but reads like a student trying to meet a character limit 😅

had a slow week or two thanks to travel and what not kicking off work on some fun @e18e.dev initiatives today though 👀

reviving my XPS laptop, its nice to see a linux desktop again :D

the hackery it takes to get it to behave

thought i'd give the node test runner a go again 20.x - pass 22.x - tries to run ts sources try turn off ts 20.x - no such option as "no-experimental-strip-types" 22.x - pass lets try a glob instead 20.x - could not find "lib/**/*_test.js" (20 doesn't support globs) 22.x - pass

its always good fun when something as ancient as glob has a CVE

bleh, cloudflare outage this time 😭

Quite a few micro utils exist to brute force an "on exit" listener, i.e they listen on 10-20 different events to try ensure all kinds of exit are accounted for Surely in modern times, we can just listen for `exit`? 👀

Been a very busy week just gone, finally time to catch up on all the GitHub!

cracked it! terminal rendering goodness

figuring out a nice, difficult bug in clack that'll fix a whole bunch of weird edge case issues 😅

DEP0190 is just going to make `--disable-warning` common usage

new version of module-replacements published! this is the core @e18e.dev data set used by various tools to suggest more performant packages. big thanks to @outslept.bsky.social for sorting the docs and everyone who added more replacements this time around 🎉

roughly figured out our bun test failures - turns out bun itself just has a very unhappy `fs.watch` implementation 😬

tinyglobby is a great success, and has shown us how much we can improve perf for everyone. here's some of the story! big thanks to @superchupu.dev and @benmccann.com for putting so much work into this and the migrations/adoption. we're lucky to have both in the @e18e.dev community 💙

filesystem tests are the flakiest

what a great success 🎉 if you don't use knip already, be sure to check it out! would love to see more perf focused tools like this

Plans fell apart so I spent the weekend hiking and cafe hopping 😀 still a big fan of Zurich

If your code runs in a browser, your tests should too

quick trip to switzerland!