Function assertElementNode

src/cdk/drag-drop/directives/assertions.ts:14–20

(node: Node, name: string)

 * @param name Name to attach to the error message.
 */
export function assertElementNode(node: Node, name: string): asserts node is HTMLElement {
  if (node.nodeType !== 1) {
    throw Error(
      `${name} must be attached to an element node. ` + `Currently attached to "${node.nodeName}".`,
    );
  }
}