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1 | ``constant`` | ||
2 | ============ | ||
3 | |||
4 | .. versionadded: 1.12.1 | ||
5 | constant now accepts object instances as the second argument. | ||
6 | |||
7 | ``constant`` returns the constant value for a given string: | ||
8 | |||
9 | .. code-block:: jinja | ||
10 | |||
11 | {{ some_date|date(constant('DATE_W3C')) }} | ||
12 | {{ constant('Namespace\\Classname::CONSTANT_NAME') }} | ||
13 | |||
14 | As of 1.12.1 you can read constants from object instances as well: | ||
15 | |||
16 | .. code-block:: jinja | ||
17 | |||
18 | {{ constant('RSS', date) }} | ||