sass-site/source/documentation/values/functions.md

title
Functions

{% render 'doc_snippets/call-impl-status' %}

Functions can be values too! You can't directly write a function as a value, but you can pass a function's name to the meta.get-function() function to get it as a value. Once you have a function value, you can pass it to the meta.call() function to call it. This is useful for writing higher-order functions that call other functions.

{% render 'code_snippets/example-first-class-function' %}