Oops, I forgot hook_uninstall

This is a bonus screenast in this chapter, created since I forgot to implement the hook_uninstall function in the Word list module. The uninstall hook is (mostly) used to remove module data from the database, and since this module stores information in the database it should also remove it when uninstalled. code added to wordlist.uninstall function wordlist_uninstall() { variable_del('wordlist_words'); } Trivia knowledge: The uninstall hook is the most used of all Drupal hooks.