Is there a difference in using a constructor to create an object versus returning an object?

Question

Is there any difference in how these functions operate? The first one is more typically of what I think about when thinking of a constructor.

Example 1: using t

Answer 1

The difference is the constructor used to create the object returned.

new Book('A Good Book', '500 pages');

creates a Book object instance, with the instance inheriting properties from Book.prototype, including a constructor property value of Book. The Book.prototype object itself inherits from Object.prototype.

var other = Movie('Gladiator', '180');

uses Movie as a factory function (new not required) and returns an Object object instance, with the instance inheriting properties directly fromObject.prototype, including a constructor property value of Object.

More briefly stated, Object literal syntax creates an Object object.