📢I wrote a blog post on how @TechAtBloomberg uses TypeScript.

"10 Insights from Adopting TypeScript at Scale"

techatbloomberg.com/blog/10-insigh… This is the first time we've really talked about our TypeScript infrastructure, despite it being used by over 300 internal projects. So there is a lot to unpack 🎁

Here's the OMGTLDR...

ECMAScript excitement 😉

TC39 has advanced these proposals.

💡Resizable ArrayBuffers➡️2
💡Error Cause➡️1
💡Double-Ended Iterator & Destructuring➡️1
💡Intl.DisplayNames V2➡️1
💡Intl Locale Info➡️1
💡Modulus & Additional Integer Math➡️1
💡Standardized Debug➡️1
💡String Dedent➡️1 In-Place Resizable and Growable ArrayBuffers ➡️ Stage 2

github.com/tc39/proposal-…

ECMAScript excitement 😉

Congrats to my colleagues @TechAtBloomberg @maxheiber @joeywatts96 @Neuroboy23 for implementing TC39 Stage 3 Private Class Fields in TypeScript 3.8

Thanks to @typescript team for a fun collaboration
@drosenwasser @SeaRyanC @rbuckton @sanders_n @orta

https://twitter.com/typescript/status/1230629807991341058

You'll be able to hear the whole story of Private Class Fields at @tsconfeu on 31 March where @maxheiber will be talking about how to contribute a feature to TypeScript.

Warning: May contain puns 😉

tsconf.eu/speakers/max-h…

Super excited for the first ever WebAssembly Summit today in MV. Thanks to @DasSurma for arranging 👍

Includes talks by @linclark @kripken @ag_dubs @tadeuzagallo @salomonsen_p @beriberikix @KevinHoffman @brionv @binjimint

webassembly-summit.org Surma kicks thing off. Much whooping.

A very enjoyable & interactive evening at the London TypeScript Meetup @LndTypeScript organised by @wodlander.

Early doors shout to Optional Chaining landing in TypeScript 3.7 💥 @dereknordgren shared his experience of championing the introduction of TypeScript @Hudl.

@mrbrentkelly explained the jump from Flow.

Sporty summary: "Just do it"

Today the @TechAtBloomberg JavaScript Guild are hosting an internal hackathon in London to onboard contributors to key open source JS projects, guest starring @littledan. Here are the @babeljs contributors, who are receiving live remote support from core maintainer @NicoloRibaudo. Thank you Nicolo!

@r_ricard is making great progress getting test262 working on Babel!

Rome is the most ambitious new project in the JS tooling space.

It aims to unify compiling, bundling, linting, testing around a central project in order to achieve better DX and efficiency wins.

This 80-min podcast is the most in-depth explanation of Rome so far.

https://twitter.com/left_pad/status/1146069623940558849

I really enjoyed hearing @sebmck and @left_pad's thoughts and experience with keeping tools maintainable as they grow:

- the power/efficiency of starting solo
- minimising dependencies
- being thoughtful about plugin API exposure risk
- being considerate about community demands

Last week @MylesBorins successfully pushed Top-Level Await to Stage 3 at TC39 🚀

I'd like to say thank you for the input from the JS tooling community on this proposal.

TLA is a widely demanded feature that allows you to await promises from outside of functions.

(1/n) The spec is here: github.com/tc39/proposal-…

Before we had TLA you end up wrapping calls to `await` like this:

(async function(){
await myPromise
})()

With TLA can simply write:

await myPromise