Tag
dom-mutation
- Jul 30, 2026 Keeping Focus Stable in Virtualized and Reordered Lists Why windowing libraries lose focus when they recycle nodes, how sorting a list breaks a tab stop, and what content-visibility does to the focusability of skipped subtrees. accessibility
- Apr 24, 2026 Restoring Focus After the Focused Element Disappears When a focused node is removed the browser falls back to the body, and the next Tab press restarts at the top of the page. How to choose a restoration target from structure rather than from memory. accessibility
- Dec 11, 2023 MutationObserver Records, Batching, and Microtask Delivery Observers accumulate a record per mutation and deliver them once per microtask checkpoint, which coalesces bursts into a single callback and makes delivery timing a question about the event loop. web platform