Metaprogramming

You might be wondering what metaprogramming actually is. Well, it is utilized by most programming languages. Technically, it's a piece of code that writes code by itself dynamically. With metaprogramming, you can create methods and classes at runtime. It allows you to reopen or even modify classes, as well as add methods to classes on the fly. It helps to maintain the Don't Repeat Yourself (DRY) principle in programming; however, it is a hard concept to grasp and get right.

Let's imagine the scenario of a chef in a restaurant. This chef needs to know many recipes and be able to put together food for their customers. Each food item requires different steps for preparation. There are some steps that need to be done before, during, and after the food is prepared. In order to create a simulation for these steps to be performed by an automated system, you might consider using the metaprogramming feature provided by the Ruby language.

Metaprogramming...