Components of the Composite Design Pattern

The components of the Composite Design Pattern include:

• Component: The `Component` is an Abstract class (or sometimes Interface) that defines all the methods or common operations for both Leaf and Composite classes.

Note: JavaScript doesn’t support Interfaces directly. An alterative could be create a class and modify accordingly.

• Leaf: The Leaf is a class that extends or implements the Component to provide the implementation for the declared methods in it. The Leaf class represents the individual components that do not have any child classes or nodes in the hierarchy.
• Composite: The Composite is a class that represents the composite nodes that can hold leaf nodes. It implements the Component interface and provides methods to add, remove, and manipulate child components.
• Client: The client manipulates the objects in the composition through the component interface.

The Composite Design pattern is a way of organizing objects. It helps us handle different objects in a similar way when they are put together to create a structure with parts and wholes. These parts and wholes are like building blocks that can be split into smaller pieces and then put together to make a tree-like structure.

The composite design pattern allows us to build structures so that clients can work with both individual elements and collections of elements seamlessly and consistently and makes it easy to add new types of components (individual or composite) without modifying the client code promoting flexibility and reusability.