Drupal 8: Detecting An Anonymous User

The lazy builder API in Drupal allows the creation of highly dynamic content within a render array without having to disable the cache for the entire render array or the page the content is attached to.

The cache system in Drupal has a number of different components with time, contexts and tags being used to determine the cache.

This is probably not relevant to some people, but I find that I'm always searching for this information when I need to print out a URL or find the current page path.

Drupal 9 gives you a lot of flexibility to place node fields into different areas of the site, but there are some limitations. You could use the field display manager to change the order and format of the fields, or install the layout builder module and organise fields into sections.

When creating Drupal modules I like to keep the hard coded components to a minimum. This helps when changing parts of the module in the future as hard coded links and other elements will require manual intervention and slow down maintenance.

If you've been building websites sites for a while you will realise that no site lives in isolation.