Planning
A11y Testing Strategy for Dynamic UIs
Repeatable gates for keyboard, focus, and screen reader behavior when the DOM updates without full page loads.
Level: macro
Patterns
Planning
Cache Invalidation and SWR
Serve cached UI fast while revalidating in the background and invalidating precisely after mutations.
Level: macro
Planning
Debounce vs Throttle
Pace high-frequency events (typing, scroll, resize) so work stays responsive without overloading the network or main thread.
Level: micro
Planning
LexoRank for card ordering
Lexicographic ranks between neighbors so inserts and reorders touch O(1) rows—Atlassian’s LexoRank is the usual production reference for boards and lists.
Level: meso
Planning
Optimistic UI and Rollback
Apply local updates immediately, then confirm or roll back from server responses—central to fast boards and feeds.
Level: meso
Planning
Pagination: Offset vs Cursor vs Infinite
How to page through large lists without breaking order when data changes underneath the user.
Level: meso
Planning
Realtime Transport: SSE vs WebSocket vs Long Poll
Pick a live channel that matches direction, frequency, and infra constraints for collaborative UIs.
Level: macro
Planning
Request Cancellation and Stale Protection
Abort or ignore out-of-date async results so slower responses never overwrite newer user intent.
Level: micro
Planning
Virtualization Strategies
Render only visible rows in long lists so memory and layout cost stay bounded.
Level: meso