giles
d294443627
js-on-sx: 10 new Object.* globals (getPrototypeOf, create, is, hasOwn, defineProperty, ...)
Extends the Object global dict with:
- getPrototypeOf / setPrototypeOf — read/write __proto__ chain
- create(proto, props?) — builds new obj with proto and optional descriptors
- defineProperty / defineProperties — descriptor.value only (no getters/setters)
- getOwnPropertyNames / getOwnPropertyDescriptor(s) — simple shapes
- isExtensible / isFrozen / isSealed (permissive stubs)
- seal / preventExtensions (no-ops)
- is — SameValue (NaN is NaN, -0 vs +0 distinguished via inspect string)
- fromEntries — inverse of entries
- hasOwn — explicit owner check for string keys
9 new unit tests, 506/508 total.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-24 07:47:34 +00:00
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