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

I think your best bet is a combination of defined() check along with looking at the length of the array via length() function:

{% if texts is defined and texts|length > 0 %}
    ...
{% endif %}