Tests whether the specified object o has a property p on itself or
in its prototype chain.
Tests whether the specified object o has a property p on itself or
in its prototype chain.
This method is the equivalent of p in o in JavaScript.
Returns the names of all the enumerable properties of the specified
object o, including properties in its prototype chain.
Returns the names of all the enumerable properties of the specified
object o, including properties in its prototype chain.
This method returns the same set of names that would be enumerated by a for-in loop in JavaScript, but not necessarily in the same order.
If the underlying implementation guarantees an order for for-in loops, then this is guaranteed to be consistent with js.Object.keys, in the sense that the list returned by js.Object.keys is a sublist of the list returned by this method (not just a subset).
(objectCompanionOps: StringAdd).self
(objectCompanionOps: StringFormat).self
(objectCompanionOps: ArrowAssoc[ObjectCompanionOps]).x
(Since version 2.10.0) Use leftOfArrow instead
(objectCompanionOps: Ensuring[ObjectCompanionOps]).x
(Since version 2.10.0) Use resultOfEnsuring instead