Check twig file field is empty or not.

For check Twig file field is empty or not, look at the syntax..

 

{% if content.field_machine_name[0] is not empty %}
           /* write comment here */
{% else %}
          /* write comment here */
{% endif %}

                                 OR

{% if content.field_machine_name|render %}
       /* write comment here */
{% endif %}


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