From 456be79562e56379cb440aa9546d8eadc9223061 Mon Sep 17 00:00:00 2001 From: Rich Harris Date: Mon, 24 Feb 2025 07:40:54 -0500 Subject: [PATCH] tweak --- .../src/internal/client/dom/elements/class.js | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/packages/svelte/src/internal/client/dom/elements/class.js b/packages/svelte/src/internal/client/dom/elements/class.js index 5cd1c590f2..3308709a24 100644 --- a/packages/svelte/src/internal/client/dom/elements/class.js +++ b/packages/svelte/src/internal/client/dom/elements/class.js @@ -34,18 +34,13 @@ export function set_class(dom, is_html, value, hash, prev_classes, next_classes) // @ts-expect-error need to add __className to patched prototype dom.__className = value; } else if (next_classes) { - prev_classes = prev_classes ?? {}; + prev_classes ??= {}; - for (const key in next_classes) { - const is_present = !!next_classes[key]; + for (var key in next_classes) { + var is_present = !!next_classes[key]; if (is_present !== !!prev_classes[key]) { - // TODO : use dom.classList.toggle instead ? - if (is_present) { - dom.classList.add(key); - } else { - dom.classList.remove(key); - } + dom.classList.toggle(key, is_present); } } }