Config Sync Directory Setting Change In Drupal 9

I was recently working with a Drupal 9 site and found some strange behaviour when saving certain types of content. The page would appear to save, but much of the content appeared to be missing. It had even failed to generate the paths for the page based on the path auto rules.

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.

I was recently working on a Drupal form where I needed a user to select from a list of options that were available in a field attached to an entity. As the entity itself didn't exist when the user was filling in the form I needed a way of finding out the options that could be applied to the field. 

Composer is an excellent way of managing dependencies but in order to use it properly it does require a build and deployment process.

Google PageSpeed tool was created to give webmasters an indiction of how their site will perform when analysed by the Google search engine. As Google takes a variety of different factors into consideration when ranking sites the tool gives an indication of the health of the site.