These properties are defined on Object.prototype and shared by all Object instances.
Object.prototype.proto Deprecated
Points to the object which was used as prototype when the object was instantiated.
Object.prototype.constructor
The constructor function that created the instance object. For plain Object instances, the initial value is the Object constructor. Instances of other constructors each inherit the constructor property from their respective Constructor.prototype object.
These properties are defined on Object.prototype and shared by all Object instances.
Object.prototype.proto Deprecated Points to the object which was used as prototype when the object was instantiated.
Object.prototype.constructor The constructor function that created the instance object. For plain Object instances, the initial value is the Object constructor. Instances of other constructors each inherit the constructor property from their respective Constructor.prototype object.