How to remove the slash at the end of a link that has query parameters in htaccess?

Question

Apache HTTP Server

There is a link:
http://mysite.com/articles?p=3/
Need to do:
http://mysite.com/articles?p=3
That is, without a slash at the end
These are pagination pages, so you need to take into account that the "p" parameter can have other values

Answer 1

I answer myself.
This kind of redirect worked:

RewriteCond %{QUERY_STRING} ^p=(\d+)/
RewriteRule ^(.*) /$1?p=%1 [R=301,L]

Answer 2

RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} (.*)
RewriteCond %{REQUEST_URI} /$ [NC]
RewriteRule ^(.*)(/)$ $1 [L,R=301]
Please note that this method may not always work if the URL requires a mandatory slash, for example site.com/user/ the user will be redirected to site.com/user, of course, with the parameters preserved.