twig implementation

[github/wallabag/wallabag.git] / vendor / twig / twig / doc / tests / empty.rst

``empty``
=========

``empty`` checks if a variable is empty:

.. code-block:: jinja

    {# evaluates to true if the foo variable is null, false, an empty array, or the empty string #}
    {% if foo is empty %}
        ...
    {% endif %}