``reverse`` =========== .. versionadded:: 1.6 Support for strings has been added in Twig 1.6. The ``reverse`` filter reverses a sequence, a mapping, or a string: .. code-block:: jinja {% for user in users|reverse %} ... {% endfor %} {{ '1234'|reverse }} {# outputs 4321 #} .. tip:: For sequences and mappings, numeric keys are not preserved. To reverse them as well, pass ``true`` as an argument to the ``reverse`` filter: .. code-block:: jinja {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse %} {{ key }}: {{ value }} {%- endfor %} {# output: 0: c 1: b 2: a #} {% for key, value in {1: "a", 2: "b", 3: "c"}|reverse(true) %} {{ key }}: {{ value }} {%- endfor %} {# output: 3: c 2: b 1: a #} .. note:: It also works with objects implementing the `Traversable`_ interface. Arguments --------- * ``preserve_keys``: Preserve keys when reversing a mapping or a sequence. .. _`Traversable`: http://php.net/Traversable