JavaScript applications can improve in clarity and quality by allowing for the greater degree of control and structure that object-orientation can bring to the code. JavaScript object-orientation is based on the function prototypes and prototypal inheritance. These two ideas can provide an incredible amount of wealth to developers.

In this chapter, we saw basic object creation and manipulation. We looked at how constructor functions are used to create objects. We dived into prototype chains and how inheritance operates on the idea of prototype chains. These foundations will be used to build your knowledge of JavaScript patterns that we will explore in the next module. We will discuss various testing and debugging techniques in the next chapter.