The `is_taxonomy_viewable()` function in WordPress checks if a taxonomy is viewable, which can be useful when determining if certain parts of your website should be visible to users
The article provides an introduction to using the WordPress `is_taxonomy()` function, which checks whether a given taxonomy exists in your site's database
The `is_super_admin()` function in WordPress checks if a user has the highest level of administrative privileges on a site, known as super administrator status