How To Attach Library To A Specific Content Type
If you need to upload a library with a module during its operation, in Drupal it's called attaching file.
Attaching a library can be done in several ways depending on your needs.
Remember that the library is always registered by its module or theme name followed by the library name.
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Code Snippet
function rwcenter_page_attachments(array &$attachments) {
$attachments['#attached']['library'][] = 'rwcenter/content';
$node = \Drupal::routeMatch()->getParameter('node') ?? \Drupal::routeMatch()->getParameter('node_preview');
if (is_null($node)) {}
else {
if ($node->getType()=='rwcenter') {
$attachments['#attached']['library'][] = 'rwcenter/content';
}
}
}
