Comment in css about line position in sass?

Question

css

Repeatedly came across similar comments in sass, scss files. I
/* line 45, ../sass/day12.scss */
suspect that this is some kind of plugin that makes a comment about the line number in the sass file where this section of styles is located. I don’t even know how to google, Google doesn’t understand all my wording) maybe someone knows which way to dig?

Answer 1

gulp-sourcemaps

Answer 2

This is most likely what Compass does.
In general, I recommend using Source Maps.