Object.keys( O )

When the keys function is called with argument O, the following steps are taken:

Object.values( O )

When the values function is called with argument O, the following steps are taken:

When the entries function is called with argument O, the following steps are taken:

When the abstract operation EnumerableOwnProperties is called with Object O and String kind the following steps are taken:

Assert: Type(O) is Object.
Let ownKeys be ? O.[OwnPropertyKeys].
Let properties be a new empty List.
Repeat, for each element key of ownKeys in List order 1. If Type(key) is String, then
1. Let desc be ? O.[GetOwnProperty].
2. If desc is not undefined and desc.[[Enumerable]] is true, then
3. If kind is "key", append key to properties.
4. Else, 1. Let value be ? Get(O, key). 1. If kind is "value", append value to properties. 1. Else,
  1. Assert: kind is "key+value".
  2. Let entry be CreateArrayFromList(« key, value »).
  3. Append entry to properties.
Order the elements of properties so they are in the same relative order as would be produced by the Iterator that would be returned if the EnumerateObjectProperties internal method was invoked with O.
Return properties.

Note: The "EnumerableOwnNames" section is deleted. Any existing references to EnumerableOwnNames(x) should be changed to EnumerableOwnProperties(x, "key")