Reference home > @af-utils/virtual-core > VirtualScrollerInitialParams > estimatedWidgetSize

VirtualScrollerInitialParams.estimatedWidgetSize property

Estimated size of scroll element.


estimatedWidgetSize?: number;


Actual size is always reported by ResizeObserver, but this property together with VirtualScrollerRuntimeParams.estimatedItemSize and VirtualScrollerRuntimeParams.overscanCount can be used in server-side rendering.

Quantity of SSR-rendered elements can be calculated this way:

Math.min( itemCount, Math.ceil( estimatedWidgetSize / estimatedItemSize ) + overscanCount )