Andreas Kling e330d5b9ab LibWeb: Make Node::is_connected() O(1) via a cached flag ...

Previously this walked up the parent chain on every call, which shows
up as a 2.5% item in the profile while watching YouTube videos.

Cache an m_is_connected bit on Node instead, maintained by the DOM
insertion and removal steps.

2026-04-16 08:26:34 +02:00

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