Even though there have been great advancements across the board, Drupal 8 has a couple of almost revolutionary developments compared to its predecessor. Notable among these are the configuration API and the caching system, which are both light-years ahead of what was capable in Drupal 7. Another one is the multilingual initiative that sought to make Drupal fully multilingual out of the box--rather than having to use 20 contributed modules to achieve results that don't even come close. This also includes the internationalization (i18n: https://www.w3.org/standards/webdesign/i18n) aspect that allows sites to be translated in any of the installed languages.
In this chapter, we are going to talk about internationalization and multilingual features in Drupal 8 from the point of view of a module developer. Many of the built-in capabilities of...
