Drupal Resources and Reference

This article is a collection of important links and resources for drupal beginners and drupal experts

It will include reference resources, links, images, and even media.

Please comment with every important link.

Redirect needs were always important when developing with C, we remember how we use the Goto() command, and with Drupal 7 we had the Drupalgoto() command, but these options were deprecated within Drupal9 which become a fully object-oriented and object-derived system.

so how do we create Redirection commands?

There are a few options to do so, I will try to overview them all.

Form elements are a subset of render elements, representing elements for HTML forms, which can be referenced in form arrays.
See the Render API topic for an overview of render arrays and render elements, and the Form API topic for an overview of forms and form arrays.

entityQuery allows developers to query Drupal entities and fields in a SQL-like way.

A Drupal site's tables and fields are never a 1-to-1 match for the site's entities and fields - entityQuery allows us to query the database as if they were 1-to-1. 

Much like you could write some SQL that returns all rows of table1 where field1 is 14, using entityQuery you can ask Drupal to return all entities of type "basic page" where the value of field_some_field is 14.