Safe Get-Function & Call

NOTE: There are only rare cases
where you might actually need this.
Read my article for more details .

Sass 3.5+ includes support for
first-class functions .
In brief,
we have to start useing
get-function('function-name')
before calling a function using
call() —
but only in newer versions of Sass.

Safe Get-Function

safe-get-function($function)

Safe Get Function accepts either a string or a function,
and returns the proper value for the version of Sass being used.

• If we get a string, and need a string => do nothing.
• If we get a string, and need a function => get-function.
• If we get a function, and need a function, do nothing.
• There is no way to get a function if we need a string...

Safe Call

safe-call($function, $args...)

Safe Call is a shortcut for getting (if needed)
and calling a function
all at once.