Function findParent

lib/html/syntax.js:4778–4793

(/** @type {HtmlNode} */ node)

	};

	const findParent = (/** @type {HtmlNode} */ node) => {
		// search the whole document tree for the parent of node
		/** @type {(HtmlElement | HtmlDocument | HtmlDocumentFragment)[]} */
		const stack = [doc];
		while (stack.length) {
			const x =
				/** @type {HtmlElement | HtmlDocument | HtmlDocumentFragment} */ (
					stack.pop()
				);
			for (const k of childrenOf(x)) {
				if (k === node) return x;
				if (k.type === NodeType.Element) stack.push(k);
			}
		}
		return null;
	};

	const insertAtPlace = (
		/** @type {InsertionPlace} */ place,