Sass Functions

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Functions are another form super-variable, as it were, where you do a bunch of work that is assigned to something you can print out. But in this case you aren't injecting a bunch of CSS, instead you are just printing out a nice, final value. For many things you will want to do with functions, someone else has probably already written it. Sass comes with a lot of predefined functions for you to use, and there are libraries, like Compass, which provide many more. We'll take a look at some of the functions that Sass provides for us and see a function in action, along with our mixin, side by side, to really see the difference between them.

Additional resources

Sass Functions Documentation