Display field's label only when any value added to it For example Taxonomy Terms field Label is always displayed even if no tags added to it. How can I show Taxonomy Terms field's Label and its values (tag's links), only when there have been a value added to it?

I try to achieve that by adding conditionals based fields, something like below code to node template:

{% if content.field_tag is not empty %}
{{ content.field_tag }}
{% endif %}


or

{% if content.field_tag %}
{{ content.field_tag }}
{% endif %}


According to the article:Comparison of PHP Template and Twig theming paradigms but whatever I try I can't get any result.
almost you did , instead of content.FIELD_MACHINENAME use node.FIELD_MACHINENAME.value
I mean try something like 

{% if node.field_tag.value %}
{{ content.field_tag }}
{% endif %}


for make sure that this solution work correctly(for debug) try {{ kint(node.field_tag }}.