Prototype Pattern:

The Prototype design pattern is a creational pattern that involves creating objects by cloning an existing object instead of creating new objects from scratch. It is very useful when object creation is expensive and requires a lot of time and resources. In the prototype pattern, a prototype instance is created first, and new objects are created by copying the prototype. This pattern is used when the type of objects to create is determined by a prototypical instance, which is cloned to produce new objects. The Prototype pattern involves two key parts: 1. Prototype (interface): This declares the operations that all prototypes should have. The main operation is the clone method. 2. Concrete Prototype (implementation): This is an object that implements the clone method defined in the prototype interface. This method returns a copy of itself. Consider the process of manufacturing cars. Creating a new model of car is a complex and costly process. Once a model is made, it becomes a prototype. If you want to create more cars of the same model, you don't need to go through the complex creation process again. Instead, you clone the prototype. This is more efficient and less error-prone because you're copying a successfully built model. Implementation in Go: