Function isContainerMarkedAsRoot

lib/assets/react-source/development/react.js:11523–11525

(node)

	  node[internalContainerInstanceKey] = null;
	}
	function isContainerMarkedAsRoot(node) {
	  return !!node[internalContainerInstanceKey];
	} // Given a DOM node, return the closest HostComponent or HostText fiber ancestor.
	// If the target node is part of a hydrated or not yet rendered subtree, then
	// this may also return a SuspenseComponent or HostRoot to indicate that.
	// Conceptually the HostRoot fiber is a child of the Container node. So if you