{{dc:acf:post_field ifempty='hide'}} / display condition in string, not element

I’m trying to only show the event end date when there is an end date. most events are 1 day and the end date is not set.

my other hurdle is that I cannot use the elements condition tool, because this is all entered into a text field.

is there a contextual variable that can be used for an empty string condition key? something like fallback="" possibly? right now, when the end date doesn’t exist, it uses today’s day/date in place.

this is what I’m working on:
{{dc:acf:post_field field="event_end_date" type='date' format="j"}}

but this is the entire field:
<span id='month'>{{dc:acf:post_field field="event_date" type='date' format="M"}}.</span>&nbsp;<span id='day'>{{dc:acf:post_field field="event_date" type='date' format="j"}}</span><span id='endday'>{{dc:acf:post_field field="event_end_date" type='date' format="j" fallback=""}}</span>&nbsp;<span id='years'>{{dc:acf:post_field field="event_date" type='date' format="Y"}}</span>

It sounds like you want to use Twig. Specifically the Flow Control section. When Twig is enabled it will output different types of Dynamic Content. So try a simple example and you can try expanding it to your other fields. Let us know if this helps.

{% if acf.post_field({ "field": "event_date" }) %}
Your output
{% endif %}