Check if an array is not empty in Jinja2

Question

I need to check if the variable texts is defined or not in index.html.

If the variable is defined and not empty then I should render the loop.

Answer 1

This is what worked for my use case in my Django app:

I needed to pass a queryset as context to an html template and display the block only if the queryset had values

Queryset:

events = Event.objects.filter(schedule_end__gte=date.today()).order_by('-created_at')

Passed context dictionary as follows:

{ "events" : events }

HTML template

{% if events %}
  
Upcoming Events
  

    {% for event in events %}
    
{{ event.title }}
    {% endfor %}
  
{% endif %}