Redirect in .htaccess from http + www to https + www?

Question

htaccess

the site already has a redirect to www

RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.
RewriteRule (.*) http://www.%{HTTP_HOST}/$1 [R=301,L]

you need to set another redirect to https

Answer 1

RewriteEngine on
RewriteCond %{HTTP} On
RewriteCond %{HTTP_HOST} !^www.(.+) [NC]
RewriteRule (.*) https://www.%{HTTP_HOST}/$1 [R=301,L]

I think it's obvious.