Items with :key attributes are matched by key across renders — existing DOM nodes are reused, stale nodes removed, new nodes inserted in order. Falls back to clear-and-rerender without keys. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Items with :key attributes are matched by key across renders — existing DOM nodes are reused, stale nodes removed, new nodes inserted in order. Falls back to clear-and-rerender without keys. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>