Idioms on rustbiteshttps://www.rustbites.com/tags/idioms/Recent content in Idioms on rustbitesHugoenSun, 28 Jun 2026 10:27:19 +0200227. trim_matches — Strip the Same Char Off Both Ends, However Many There Arehttps://www.rustbites.com/posts/bite-227/Sun, 28 Jun 2026 09:00:00 +0100https://www.rustbites.com/posts/bite-227/<p><code>trim()</code> only knows about whitespace, and <code>strip_prefix</code> peels off one occurrence. When you need to shave <em>every</em> leading and trailing <code>.</code> (or <code>0</code>, or quote) off a string, reach for <code>trim_matches</code>.</p>226. unwrap_or_default — Stop Spelling Out the Empty Valuehttps://www.rustbites.com/posts/bite-226/Sat, 27 Jun 2026 17:00:00 +0100https://www.rustbites.com/posts/bite-226/<p>Writing <code>.unwrap_or(0)</code> or <code>.unwrap_or_else(String::new)</code> to fall back to an empty value? If the type already has a <code>Default</code>, <code>unwrap_or_default</code> says it for you.</p>225. Option::map_or — Transform-or-Default in One Call, Skip the matchhttps://www.rustbites.com/posts/bite-225/Sat, 27 Jun 2026 09:00:00 +0100https://www.rustbites.com/posts/bite-225/<p>Reaching for a four-line <code>match</code> just to turn an <code>Option</code> into a plain value? <code>map_or</code> does the transform <em>and</em> the fallback in a single call.</p>