how to use comment in htaccess file

we can do it for commenting and we can put in the beginning ‘#’ and that line would be called commented file
and always keep in your mind never put even any dot for nothing that would really created a web page for you saying that “
internal serverl error “. and nothing else you get it and now time begins for you how you would tackle the error for yourself.
it would may take from you 1 minute to 10 days or more or less , it would depend on you , how you you tackle it .
thanks for reading !