Jason Williams
@Jason_williams
Followers
1K
Following
895
Media
53
Statuses
709
JavaScript Infrastructure & Tooling @Bloomberg, creator of @boa_engine
London
Joined May 2008
ECMAScript excitement π Congrats to @ManishEarth on unflagging @TC39 Stage 3 Temporal in V8 today. Heading for Chrome 144 π By many metrics this new date/time API is the single biggest change to JS ever π₯ It uses Boa's temporal_rs by @Jason_williams Kevin Ness & Manish π
5
24
198
Some discussion links HN - https://t.co/DzMwoGXhVD Lobsters - https://t.co/pVFCbYsdag Reddit -
reddit.com
Posted by Jayflux1 - 161 votes and 28 comments
0
0
0
temporal_rs has been released!!! This is the first public release of temporal_rs, a Rust implementation of the Temporal API powering Boa, Kiesel, V8 plus other engines. This will be shipping in Chromium soon More info in our blog post:
boajs.dev
Temporal_rs is here! The datetime library powering Temporal in Boa, Kiesel, and V8
3
11
72
The Bloomberg Terminal, believe it or not, is based on web technology π This deep-dive talk by @Jason_williams & @pcwilliams reveals what that looks like in terms of Chromium embedding. And has led to creating a new Web Perf API: Container Timing π₯ https://t.co/pGfXVtpcVu
2
3
39
The @PerfNowConf conference begins tomorrow in Amsterdam. It is going to be great π For the first time @pcwilliams & @Jason_williams will share the story of how the Bloomberg Terminal uses web tech & what this means for the wider web ecosystem π If you see us, come say hi π
1
6
20
Itβs been interesting following the work on this over the years, great to see it paying finally paying off. I hope we see a deeper dive on those perf improvements and changes @BenjaminPasero
π¦ a 2y journey to adopt ECMAScript modules in @code is coming to a successful end π we see massive startup performance improvements loading our main VS Code module Thanks Jo and @alexdima123 from the team for this joint effort π π https://t.co/Onc0QS47vr
0
0
4
TypeScript excitement π Congrats to @acutmore on releasing a brand new type-stripping compiler: ts-blank-space β¨ β‘οΈ 5.6x faster than tsc due to zero-codegen π· Written in TS π― Uses the official TS parser π― Accurate/preserved source locations πͺ Battle-tested in production
Today, I'm releasing a TypeScript compiler called ts-blank-space π We use this at @TechAtBloomberg to perform type-stripping on a modern subset of TypeScript. It's written in TypeScript and is fast because it uses whitespace to enable work-skipping. https://t.co/L2GCoK3YwN
6
32
215
We just added some more speakers to our #PerfNow line-up for November 14 and 15. @ericwbailey, Paul Williams, @tameverts, @ksylor, @Jason_williams and @Jack_Franklin will be with us as well!
1
8
21
We're proud to announceΒ @TechAtBloomberg as a sponsor of SquiggleConf 2024! β¨ Bloomberg runs one of the world's largest information networks, powered largely by web tech. Its engineers have contributed to many of the latest & greatest web dev tools, including TypeScript's
0
4
18
We got an email from the Serbian Registry of Internet Domain Names (RNIDS), the organisation that is responsible for the `.rs` top-level domain. Looks like they are a big fan of Rust. π
41
450
3K
Boa 0.18 has just been released! Boa is a #javascript engine written in #rustlang. It now passes 85% of the official ECMAScript suite, and it's much more performant! Check the full release post here: https://t.co/Ax3oC6Mngq /cc @rustlang @ThisWeekInRust
boajs.dev
Summary
1
9
20
This is unexpected. @deno_land we didn't know of any implementations in JS engines that pass all the compliance tests yet. will it be behind a flag?
2
0
6
.@TechAtBloomberg engineers out and about at @PerfNowConf in #Amsterdam. Thanks #PerfNow for a great conference. We will be back!
0
6
19
One the most significant group of attendees this year at @PerfNowConf. Thx for joining the Hallway Track @Jason_williams. β¨ππΎβ¨
.@TechAtBloomberg engineers out and about at @PerfNowConf in #Amsterdam. Thanks #PerfNow for a great conference. We will be back!
1
3
14
Had a great time doing a keynote at @ProssimoISRG on Microsoft approach to memory safety. Made a huge announcement - @microsoft is going big on Rust and spending $10 million to make it 1st class language in our engineering systems + $1 million @rustlang foundation.
22
162
512
Love a good deep dive, especially when thereβs a sword involved (and used as a pointer). @programmingart does it well. #perfnow
0
0
3
Thank you @PerfNowConf pre-event for having me come and talk about our work speeding up Heap Snapshots in Dev Tools alongside @igalia #perfnow. @TechAtBloomberg are really representing this year!
Our #JavaScript Infrastructure & Tooling team's @Jason_williams is talking at tonight's #PerfNow pre-event (6:30 PM CEST) about our work w/ @igalia to achieve a 100x speed boost to Heap Snapshot generation, making #JS memory analysis faster https://t.co/b6uuh2F3U9
#opensource
1
3
23
This is great work, borne out of an enduring, productive collaboration between @TechAtBloomberg & @Igalia. I spend a lot of time making sure a highly complex system (@TheTerminal) uses resources efficiently - thanks @jdapena @jason_williams & @acutmore for making my work easier.
π£ Debugging memory problems in @ChromeDevTools is now super fast β‘ @jdapena has made heap snapshot *much* quicker based on investigations by @Jason_williams & @acutmore and funding from @TechAtBloomberg π π§΅ https://t.co/Q8KEqfP0w5
0
3
9