constant

The constant test checks if a variable has the exact same value as a constant.

You can use either global constants or class constants:

{% 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:

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

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Deprecated functions

The following Canvas functions are considered deprecated.

defined

The defined test checks if a variable is defined in the current context.