Objects are not just containers for data; they can also contain functions, known as methods, that allow you to work with the data they store. Object methods provide an elegant and logical way to couple data and related functionality within an object.

Let's explore object methods and how they can help organize and encapsulate logic within objects.

Bringing Logic and Data Together

Object methods allow us to group related data and operations within a single entity. This coupling of data and behavior makes the code more logical and syntactically clear.

Consider the following example:

In this example, the shoppingCart is an object that couples data (product and quantity) with the method (function getProduct). This method provides a logical and syntactic connection to the data it manipulates.

Advantages of Object Methods

• Logical Organization: Object methods allow us to logically group data and related functionality;
• Data Encapsulation: Methods can directly access and manipulate the object's data;
• Readability: Object methods make the code more readable and self-explanatory. When we see a method within an object, we know it's related to that object's data.

In the next chapter, we will dive deeper into the practical usage of object methods.