DomUtils.existsOnefunction existsOne(test: (elem: Element) => boolean, nodes: Node[]): boolean;§existsOne(test: (elem: Element) => boolean, nodes: Node[]): boolean[src]§Parameters§test: (elem: Element) => boolean[src]Function to test nodes on. §nodes: Node[][src]Array of nodes to search. §Return Type§boolean[src]Whether a tree of nodes contains at least one node passing a test.