Type for
See also:
Fields
read onlypropertyIsEnumerable:Function
Returns a boolean indicating if the internal enumerable attribute is set.
read onlyisPrototypeOf:Function
Returns a boolean indicating whether the object this method is called upon is in the prototype chain of the specified object.
read onlyhasOwnProperty:Function
Returns a boolean indicating whether an object contains the specified property as a direct property of that object and not inherited through the prototype chain.