Check if a field is empty inside a twig paragraph template

Question

I know how to check if a field is empty in a twig template (example node--lorem.html.twig):

{% if node.field_lorem.value is not empty %}

    <p>not empty</p>

{% else %}  

    <p>empty</p>

{% endif %}  

I would like to check if a field is not empty inside a paragraph twig template (example paragraph--lorem.html.twig). But this doesn't work :

{% if content.field_lorem.value is not empty %}

or

{% if node.field_lorem.value is not empty %}

I can display this field value like this :

{{ content.field_lorem }}

Answer 1

To check if a field is empty use ItemList::isEmpty

Node

{% if node.field_example.isempty %}
  <p>Field is empty</p>
{% endif %}

Paragraph

{% if paragraph.field_example.isempty %}
  <p>Field is empty</p>
{% endif %}