fix null check

5aacc3dc · SteVen Batten · c8b7d5d9 · 5aacc3dc
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src/vs/base/browser/ui/menu/menu.ts src/vs/base/browser/ui/menu/menu.ts +1 -1

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--- a/src/vs/base/browser/ui/menu/menu.ts
+++ b/src/vs/base/browser/ui/menu/menu.ts
@@ -59,7 +59,7 @@ export class Menu extends ActionBar {
 	private menuDisposables: IDisposable[];
 	private scrollableElement: DomScrollableElement;
 	private menuElement: HTMLElement;
-	private scrollTopHold: number;
+	private scrollTopHold: number | undefined;

 	private readonly _onScroll: Emitter<void>;