Drupal 8 loop through and print paragraph fields in field.html.twig

field--paragraph-field--view-mode.html.twig

<div{{ attributes }}>
{# First check if there is a section video #}
{% for item in items if item.content['#paragraph'].field_section_video is not null %}
  {% if loop.first %}
    <div{{ item.attributes }}>{{ item.content }}</div>
  {% endif %}
{% else %}
  {# If no video was found, check if there is a section_image #}
  {% for item in items if item.content['#paragraph'].field_section_image is not null %}
    {% if loop.first %}
      <div{{ item.attributes }}>{{ item.content }}</div>
    {% endif %}
  {% else %}
    {# Revert to default#}
    <div {{ item.attributes }} class="no-media">No Media</div>
  {% endfor %}
{% endfor %}
</div>