If the comment is something like
//check fromIndex is greater than toIndex
then that is not any more individualistic or different than the actual function. Sadly, many people comment like this, on the other hand if it reproduced a comment with typos or something more complicated like
/* this hack is because Firefox's implementation of SVG z-indexing does not match how Chrome or Safari does it - please read this article ...url...*/
then yeah, then you would have something