How to loop through classes in sass?

Question

Sass

There are a number of buttons with the class "button"
To all of them, for example, add the name of the colors to get the following:
class="button--red"
class="button--blue"
class="button--green"
class ="button--white"
class="button--yellow"
And so on .
I think this is implemented in a loop, and the class names are taken from an array. But how do you write it down?

Answer 1

Answer 2

And what about sass? sass - css preprocessor, it does not affect the dom in any way