Drupal 8.x

Using the image field, I would like to have these images saved in a node-specific directory, using the node ID or the node title.

Problem: none of these tokens about the "node that is about to be saved" is supported by the field.

Is there a way to achieve this?

I am new to drupal 8 php unit test. I have written a custom service that will take user id and gives an array of user details. I have tried to unit test this function but getting error on $user->get() function.

Here is my module/custom/common/src/CommonService.php

Hi.

Is there a module in Drupal 8 which offers a way to assign a css class to an image  placed in page content in editor?

missing assign css class form

DRUPAL 8

I installed the bootstrap 3 theme and created the sub-theme.
Before continuing with the installation of the library (bootstrap_library) I have a doubt as to whether or not to install the jquery update module.
I looked around and saw the jquery form page. But the version for drupal 8 is not present.
I argue that there is no need to install it.
Am I wrong?

for the bootstrap menu I read that it can be multilevel. In the management of the blocks I have indicated 3 as a level. I return to the site but it only displays the first level. Is there any other setting to do?