.htaccess - redirect page to different domain

I've changed the domain of this blog to a subdomain and I needed to redirect old post to new URL.

On old domain in .htaccess file I've added rewrite rules.

RewriteEngine On
RewriteRule ^javascript-array-sort  https://snippets.slepko.co.uk/javascript-array-sort/ [r=301,l]

Request to https://DOMAIN/javascript-array-sort will be redirected to https://snippets.slepko.co.uk/javascript-array-sort/.

r=301 - permanent redirect l (lowercase l) - last, this is the last rule and stop processing the ruleset

Apache + PHP - disable functions to increase securityJavascript array sort