This page contains the technical documentation for the WordPress Widgets API and is written for developers. If you're not a developer you may want to review the Widgets page.
Widget areas are special places on your site that can accept blocks. These vary by theme but are typically areas like your sidebar or footer.
Themes that support the Site Editor do not use widgets, so you won’t see Appearance → Widgets in your dashboard. Instead, you can edit all of your site in one place at Appearance → Editor. Click here to learn how to use the Site Editor.
from official doc
MSc Software Systems Technology (1991) BSc BA CIS (1989) Solaris 10 Admin 1 (2008) OCA DBA 11g (2011) Bio info: I started with WP in 2017, at the age of 55. I made this site in order to help others to learn it. My Web interests are WordPress, Joomla, Drupal, CodeIgniter, Gimp and, Moodle. I have worked as an Oracle...