How to use variables in SASS?

Question

Sass

There is such a code

.image
    position: relative
    @for $i from 0 to 7
      &:nth-child(#{$i + 1})
        &:before
          content: ''
          @include sprite($advantages-$i)

I want to use a cycle, in it @include sprite($advantages-1)- will return the styles for the image from the sprite.
How to use variables correctly so that at each iteration of the loop I would get @include sprite($advantages-1), @include sprite($advantages-2)etc.?

Answer 1

You have a cycle from 0, so you need to @include sprite($advantages - $i + 1)