- A UI rendering optimization technique that displays only the portion of a large data set that is currently visible within a scrollable viewport, rather than rendering all items at once. It dynamically calculates which items should be rendered based on scroll position and container dimensions, creating and destroying UI elements as they enter and leave the visible area. Windowing enables smooth performance when working with large lists, tables, or grids by maintaining constant memory usage and rendering overhead regardless of the total data size.
- Related terms: User interface, Server-side rendering, Viewport, Large viewport
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