Modifying an existing design pattern to fit different use cases

Patterns are not commandments received from a higher plane. They have their origins in, and have been refined from, real-world engineering projects. Patterns can be modified to fit new situations better.

In this recipe, we'll see how to modify the factory pattern to make creating missions easier.

Getting ready

This recipe assumes you already have a workspace that allows you to create and run ES modules in your browser. If you don't, please see the first two chapters.

How to do it...

1. Open your command-line application and navigate to your workspace.
2. Create a new folder named 09-06-modifying-existing-design-pattern-to-fit-differet-use-cases.
3. Copy or create an index.html that loads and runs a main function from main.js.
4. Create a main.js file that defines a new class named Mission. Add a constructor that takes a name constructor argument and assigns it to an instance property. Also, define a simple print method:

// main.js 
class Mission...