constant

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`constant`

constant checks if a variable has the exact same value as a constant. You can use either global constants or class constants:

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        {% if post.status is constant('Post::PUBLISHED') %}
    the status attribute is exactly the same as Post::PUBLISHED
{% endif %}
    

You can test constants from object instances as well:

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        {% if post.status is constant('PUBLISHED', post) %}
    the status attribute is exactly the same as Post::PUBLISHED
{% endif %}
    