CSSFunctionRule: returnType property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The returnType property of the CSSFunctionRule interface returns a string representing the custom function's return type.
Value
A string.
If no return type is specified in the associated @function at-rule, returnType returns *.
Examples
See the main CSSFunctionRule reference page for an example.
Specifications
| Specification |
|---|
| CSS Functions and Mixins Module # dom-cssfunctionrule-returntype |