bail if value is undefined

2 years ago · 487c55ae88
parent b296bb048c
commit 487c55ae88
1 changed files with 3 additions and 1 deletions
--- a/packages/svelte/src/internal/client/dom/elements/bindings/window.js
+++ b/packages/svelte/src/internal/client/dom/elements/bindings/window.js
@ -32,7 +32,9 @@ export function bind_window_scroll(type, get_value, update) {
 	};

 	render_effect(() => {
-		latest_value = (get_value() ?? window[is_scrolling_x ? 'scrollX' : 'scrollY']) || 0;
+		latest_value = get_value();
+		if (latest_value === undefined) return;
+
 		if (!scrolling) {
 			scrolling = true;
 			clearTimeout(timeout);