Function isFolder

website/app/utils/docs/navigation.ts:25–26

(node: PageTree.Node)

	node.type === 'page';

const isFolder = (node: PageTree.Node): node is PageTree.Folder =>
	node.type === 'folder';

const firstInternalPageUrl = (node: PageTree.Node): string | undefined => {
	if (isPage(node)) return node.external ? undefined : node.url;