Anatomy of a Module
Although it is possible to build relatively complex Drupal 8 sites without ever having to look at the internals of a module, there may be instances where you’ll need to understand some of the inner workings of a module in order to fully take advantage of the features that the module provides. In this chapter I’ll take you on a high-level tour of what constitutes a module in Drupal 8 by walking you through the creation of a simple Drupal 8 module.
Your First Drupal 8 Module
Don’t worry, we’ll keep it simple! Our example module does only one thing, but it does it very well: display the text “Hello Drupal 8 World!” ...