Kevin Gibbons

This is now being discussed at https://github.com/tc39/proposal-decorator-metadata.

Thanks for the writeup, @rbuckton. I want to focus on the "immutable metadata key, TS wraps decorators" case, and in particular to focus on what "native JS emulation of RTTI"...

> I am not thrilled with the idea of having to patch the `context` object, as that approach feels very fragile. In what way? Do you think ES is likely...

LGTM other than https://github.com/tc39/proposal-destructuring-private/pull/8.

The devtools display in a given browser is not indicative of much of anything. Devtools are optimizing for displaying things to users, not reflecting underlying reality. If you look at...

The custom thing involves reading through the entire set, or at least some subset of it, for display. Which is fine for rendering it but not fine for random-access indexing....

That is not true. In some implementations there are indexes involved, but after items have been deleted these indexes do not correspond to the indexes you'd get from iterating in...

Yeah, I am interested in pursuing this, but don't have time to take it up right now. The place this got hung up on last time was subclassing, which is...

@zloirock In terms of this proposal it matters less what that proposal does for existing classes than what we decide we ought to do for new classes and methods in...

In many engines, spread arguments max out at less than a million elements. For example, running `Math.max(...Array.from({ length: 200_000 }, x => 1))` in Chrome throws a "Maximum call stack...