Remove empty class

sveltejs · Apr 23, 2024 · eda555e · eda555e
1 parent 6ac3218
commit eda555e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/packages/svelte/src/internal/client/dom/elements/class.js b/packages/svelte/src/internal/client/dom/elements/class.js
@@ -80,6 +80,10 @@ export function set_class_list(dom, value) {
 
 	var next_class_name = dom.className;
 
+	// for performance reason remove this
+	if (!next_class_name) {
+		dom.removeAttribute('class');
+	}
 	// Set the updated className
 	// @ts-expect-error need to add __className to patched prototype
 	dom.__className = next_class_name;