Elliott

screenshot of github copilot chat saying "Sorry, the response matched public code so it was blocked. Please rephrase your prompt. Learn more."

Yes, Copilot, I know, I wrote and publicly committed that code and asked you to look it up

You will know if I've been replaced by an LLM if my code starts saying

// console.log(myVal); // remove this line

👍

JS generators 👍

> A problem with this solution is that it disables the Google Toolbar (for those who are still using this no longer supported tool, especially for its "I fell lucky" button and its personalized buttons).

This Microsoft support forum thread lives in my mind rent free

G̶o̶o̶g̶l̶e̶r̶… ex-Googler.

nerdy.dev/ex-googler

Thanks for the heads up, we have a fix in the pipeline!

I finally found a use for one of my lingering domain names! $1/month justified!

Lit Table | TanStack Table Lit Docs The @tanstack/lit-table adapter is a wrapper around the core table logic. Most of it's job is related to managing state the "lit" way, providing types and the rendering implementation of cell/header/f...

Someone posted a link to TanStack Table on the @lit.dev discord. I didn't know about this before, and wow! it looks awesome!

The examples show very idiomatic Lit patterns for a headless UI utility. Reactive controllers, repeat(), `@state()`, and more.

tanstack.com/table/v8/doc...

@tanstack.com

My kingdom for regex search in Chrome cmd+f

AI coding agents are a useful bridge for lacking docs

The JavaScript Oxidation Compiler A collection of high-performance JavaScript tools written in Rust

Announcing Oxlint Beta: oxc.rs/blog/2025-03...

Yoof that sounds like a nightmare to maintain. Typically every repo at Airbnb has some sort of platform team behind it, but the large repo runs into issues around getting reviewers and tooling around that which I think would be easier for more focused repos

Though in all likelihood I would probably clone before and just FS across repos when necessary because clones take a long time for us and our repos tend to be sufficiently large that migrations tend to be in a few repos

This is all in one repo, our TS / web repo. Most our repo groupings tend to be around language

There’s also Roo Code or Cline which are excellent for smaller migrations where you want more interactivity (or Cursor if you have that legally approved)

Happy to chat some more, I’ll clear what I am able to share with someone with a bigger wig

I think the impressive part is how unimpressive and ad hoc the setup is. You have an endpoint to talk to an LLM, write a js async function around it, you tell Claude to output XML, you have a fault-tolerant XML reader to get the output out of the response and you fs your way to glory

It’s not cheap though, because the most capable LLMs are pricey, but luckily our leadership was receptive to the cost benefit analysis of $10s of K’s for LLM costs vs keeping two people on the project for a year and a half

LLMs have been a godsend for us at Airbnb. I basically only write codemods these days just to gather data and context for the LLMs.

The problem with the LLM approach though is that you spend lots more time in verification vs a codemod where you can be 80% sure it’s correct.

Manager, Engineering - Web Platform - Careers at Airbnb Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco …

My team is also looking for a manager if that's your thing

careers.airbnb.com/positions/64...

Accelerating Large-Scale Test Migration with LLMs How Airbnb migrated nearly 3.5K Enzyme test files to React Testing Library in just 6 weeks using automation and LLMs

My team has been doing some really fun stuff with LLMs and code migrations!

medium.com/airbnb-engin...

I think I just realized that I styled the dark mode colors of lit.dev on my old WoW days using Tukui

A 10x Faster TypeScript - TypeScript Embarking on a native port of the existing TypeScript compiler and toolset to achieve a 10x performance speed-up.

Today we're thrilled to announce our effort to port the TypeScript compiler and language service to native code, gaining a 10x speed boost in build times and editor responsiveness!

devblogs.microsoft.com/typescript/t...

Whomever decided golang variables should be 1-3 chars should be thrown into the fires of my build errors

After writing a mini-html AST builder, I'm impressed at how quickly HTML as a language bails on unexpected tokens and just calls it Text or a Bogus Comment

If you run into trouble and if you're not already on it, the Lit Discord is pretty helpful for general web-component-related stuff and is probably the biggest concentration of people that have used DSD

lit.dev/discord

Sometimes RSCs feel like the tail wagging the dog

Preact Signals just got a huge performance boost:

Signals rendered as text/props & effects only "pull" as fast as needed for rendering. Since computeds run as-needed, they now only re-run as often as their downstream DOM output can be painted.

H/t to @jovidecroock.com for making this happen.

This is when you stop using the web app and start using the API