How to properly write scss class enum?

Question

webpack

.theme-name-1, .theme-lastname-1,
.theme-name-2, .theme-lastname-2,
.theme-name-3, .theme-lastname-3 {
....
}

I understand that a cycle is needed, but I don’t understand how to make an enumeration into a string (

@mixin column-type($name, $number) { 
        @for $i from 1 through $number {
            .col-#{$name}-#{$i}  {
               color: red;
             }
        }
   }

Answer 1

https://webpack.js.org/concepts/plugins/

Answer 2

blog.teamtreehouse.com/extending-placeholder-select...