for-in reconfigure

test-enumerate.md

Test file

let obj = {};
Object.defineProperty(obj, 'a', { enumerable: true, configurable: true });
Object.defineProperty(obj, 'b', { enumerable: true, configurable: true });
Object.defineProperty(obj, 'c', { enumerable: true, configurable: true });

let visited = []
for(prop in obj) {
  Object.defineProperty(obj, 'c', { enumerable: false });
  visited.push(prop);
}

print(visited.join(", "));

sm

a, b, c

d8

a, b, c

chakra

a, b

Can someone get me JSC results for this test? :)

JSC on WebKit Nightly 9.0.3 (11601.4.4, r195810) gives

a, b, c