itemExtent
itemExtent refers to the visual space an individual item occupies within a larger collection or list. It is a crucial concept in user interface design, particularly for scrollable lists, grids, and virtualized components. Understanding and managing item extent is essential for efficient rendering and smooth user interaction.
In virtualized lists, where only visible items are rendered to optimize performance, the item extent plays
Libraries and frameworks often provide mechanisms to handle variable item extents. This might involve pre-calculating extents,