J. S. Choi

icon indicating a website link https://jschoi.org/ icon indicating an email [email protected]

icon company @university-of-utah, @indiana-university, @regenstrief icon location Board-certified physician-scientist of internal medicine and clinical informatics at the University of Utah. Also in @tc39.

Results 211 comments of J. S. Choi

Deeply nested expressions A(B(C(D(E(…), …), …), …), …) vs. temp variables

> "Do expressions" proposal is stage 1 with no activity in the last 4 years. In other words, it's [confirmed](https://github.com/tc39/proposal-do-expressions/issues/79) **dead.** @WillAvudim * I would gently push back and say...

Deeply nested expressions A(B(C(D(E(…), …), …), …), …) vs. temp variables

This article and a Hacker News thread that came from has a good discussion about variable shadowing / reassignment, in which temporary variable(s) with the same name is used as...

Deeply nested expressions A(B(C(D(E(…), …), …), …), …) vs. temp variables

> The trick is to > > * Declare the variable separately from its first assignment (i.e. don't do `let _ = 'foo'`) > * Don't give it an explicit...

gpui: Improve displayed keybinds shown in MacOS application menus

The original issue was fixed when Vim mode is off, ~~but a new issue with the displayed keybindings has appeared: https://github.com/zed-industries/zed/issues/28164#issuecomment-2854921866.~~ ~~(The displayed keybindings no longer update in the Menu...

Tools : List of Tools and Stakeholders

@rbuckton is deeply involved in both TypeScript and TC39. He may be able to participate in this initiative, or he may have suggestions for TypeScript team members.

Disallow primitives in `GetIterator()` for async iterables

The proposal here from @petamoriken seems to ask that new built-in APIs that accept async iterable inputs (like Array.fromAsync) reject string inputs. Regarding Array.fromAsync, I am sympathetic to the dislike...

State of JS 2025 Suggestions

I’m leaving some feedback here about the “New Proposals” subsection, as per https://github.com/tc39/tg5/issues/33#issuecomment-2785679230. * Pipe operator: * Its description in 2024 still uses the outdated “F# pipe” version that uses...

State of CSS 2025 Preview

Given that [writing modes are a major focus area of Interop 2025](https://github.com/web-platform-tests/interop/blob/main/2025/README.md#writing-modes), it may be worth keeping it another year (or two?). Note that Interop 2025 considers logical properties such...

Implementation Tracking

Excellent—thank you for collating all of this together. I plan on progressing this later this year. First we need to address the still-outstanding tasks in https://github.com/tc39/proposal-array-from-async/issues/14#issuecomment-1789806147. I have had little...

Implementation Tracking

Engines will need to update their behavior to close sync iterables when they yield rejected promises (#49). There is a pending test262 pull request (tc39/test262#4450). This change came from upstream...