Guards on rustbiteshttps://www.rustbites.com/tags/guards/Recent content in Guards on rustbitesHugoenFri, 03 Apr 2026 15:22:15 +020058. Option::is_none_or — The Guard Clause You Were Missinghttps://www.rustbites.com/posts/bite-058/Fri, 03 Apr 2026 09:00:00 +0100https://www.rustbites.com/posts/bite-058/<p>You know <code>is_some_and</code> — it checks if the Option holds a value matching a predicate. But what about &ldquo;it&rsquo;s fine if it&rsquo;s missing, just validate it when it&rsquo;s there&rdquo;? That&rsquo;s <code>is_none_or</code>.</p>