SCSS modify parent selector-CodePudding

Is there a way to add a class to the first element of a nested selector with .scss? Imagine the example below:

body p {
  color: black;
}

body.other-mode p {
  color: red;
}

Would it be possible to express it like this (or in a similar way, since this won't compile)

body p {
  & {
    color: black;
  }
  .other-mode& {
    color: red;
  }
}

I'm aware this can be written like this, but that's just a different way of "solving" an example of the issue.

body {
  & p {
    color: black;
  }
  
  &.other-mode p {
    color: red;
  }
}

I also tried using some scss selectors but they don't work quite as expected, in the case below the selectors ends up being body p body.other-mode p instead of body p

body p {
  & {
    color: black;
  }
  #{selector-replace(&, "body", "body.other-mode")} {
    color: red;
  }
}

CodePudding user response：

To make your last solution work, you can use @at-root.

body p {
  & {
    color: black;
  }
  @at-root #{selector-replace(&, "body", "body.other-mode")} {
    color: red;
  }
}

compiles to

body p {
  color: black;
}
body.other-mode p {
  color: red;
}

But personally, I find your original solution the most readable.
body { &.other-mode p {color: red;} }
I find the split body and p more convenient in SCSS.