What are Twig Functions & Filters?

Twig filters are used to modify variables in templates. Twig functions are another way to do things in templates, but they don’t require an original variable to modify.

Examples

Example 5a - simple twig filter

Example 5b - simple twig function

References and further reading

• Drupal core twig functions - The twig functions included with Drupal core
• Drupal core twig filters - The twig filters included with Drupal core
• Twig Tweak - provides a number of useful twig functions and filters
• Twig Real Content - provides a useful real_content condition to check if a rendered string contains actual data and not just empty wrappers