http://jbylund.github.io/tags/javascript/Recent content in Javascript on Joe BylundHugo -- gohugo.ioen© 2026 Joe BylundWed, 02 Sep 2026 00:00:00 +0000http://jbylund.github.io/posts/00352_mana-symbol-rendering-regex/Wed, 02 Sep 2026 00:00:00 +0000http://jbylund.github.io/posts/00352_mana-symbol-rendering-regex/Replacing a per-symbol replaceAll loop with a single regex pass and a Map lookup cut mana symbol conversion time by 47×. The mechanism, the benchmark, and a gotcha with stateful regex.http://jbylund.github.io/posts/00256_autocomplete-card-types/Tue, 18 Aug 2026 00:00:00 +0000http://jbylund.github.io/posts/00256_autocomplete-card-types/When you type t:cre, the search box completes it to t:Creature before any network request leaves your browser. The type list lives in a frozen in-memory index, populated once at page load from the Rust engine.http://jbylund.github.io/posts/00192_progressive-enhancement-no-js/Tue, 04 Aug 2026 00:00:00 +0000http://jbylund.github.io/posts/00192_progressive-enhancement-no-js//?q=fire always returns fully rendered HTML — no JavaScript required. JS layers typeahead and live updates on top. The cost: two card renderers that have to stay in sync.