How to get node id in Drupal 8?

@mallory_cormier 

In Drupal 8, you can get the node ID of a node object by using the id property of the object. Here is an example of how you can get the node ID of a node object in Drupal 8:

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$node = Drupal
odeEntityNode::load($nid);
$node_id = $node->id();

Alternatively, you can use the $node->nid->value property to get the node ID.

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$node_id = $node->nid->value;

Keep in mind that you will need to use the load method of the Node entity class to load a node object before you can access its properties. The $nid variable in the example above represents the node ID of the node you want to load.

I hope this helps! Let me know if you have any questions.