Source code
Revision control
Copy as Markdown
Other Tools
// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys
description: >
If "ownKeys" trap is null or undefined, [[OwnPropertyKeys]] call is
properly forwarded to [[ProxyTarget]] (which is also a Proxy object).
info: |
[[OwnPropertyKeys]] ( )
[...]
4. Let target be O.[[ProxyTarget]].
5. Let trap be ? GetMethod(handler, "ownKeys").
6. If trap is undefined, then
a. Return ? target.[[OwnPropertyKeys]]().
OrdinaryOwnPropertyKeys ( O )
1. Let keys be a new empty List.
2. For each own property key P of O that is an array index,
in ascending numeric index order, do
a. Add P as the last element of keys.
3. For each own property key P of O that is a String but is not an
array index, in ascending chronological order of property creation, do
a. Add P as the last element of keys.
[...]
5. Return keys.
includes: [compareArray.js]
features: [Proxy]
---*/
var plainObject = {
foo: 1,
"0": 2,
get bar() {},
"1": 4,
};
var plainObjectTarget = new Proxy(plainObject, {});
var plainObjectProxy = new Proxy(plainObjectTarget, {
ownKeys: null,
});
assert.compareArray(
Object.keys(plainObjectProxy),
["0", "1", "foo", "bar"]
);
reportCompare(0, 0);