how to redirect http to https with htaccess code example

Example 1: htaccess redirect to https

RewriteEngine On
RewriteBase /
RewriteCond %{HTTPS} !=on
RewriteCond %{HTTP_HOST} ^yourdomain\.com [OR]
RewriteCond %{HTTP_HOST} ^www\.yourdomain\.com
RewriteRule .* https://yourdomain.com%{REQUEST_URI} [R=301,L]

Example 2: redirect htaccess http to https

RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [R,L]

Example 3: enable https://www htaccess

RewriteEngine On 
RewriteCond %{HTTPS} off 
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]