JavaScript – Object constructor Property
The Object constructor property returns the function that created the Object prototype.
JavaScript – Object.keys() Method
The Object.keys() method returns an array iterator object with the keys of an object, without changing the original object.
JavaScript – Object prototype Property
The Object prototype property allows the addition of new properties and methods to objects.
JavaScript – Object toString() Method
The Object toString() method returns an object as a string or “[object Object]” if it cannot return a string.
JavaScript – Object valueOf() Method
The Object valueOf() method returns the primitive value of an object, or the object itself if it has no primitive.