text: export default function asyncComponent(router, component, resolve, reject) {
    function resolvePromise(componentPromise) {
      componentPromise
        .then((c) => {
          // eslint-disable-next-line
          resolve({ component: c.default || c._default || c });
        })
        .catch((err) => {
          reject();
          throw new Error(err);
        });
    }
    if (component instanceof Promise) {
      resolvePromise(component);
      return;
    }
    const asyncComponentResult = component.call(router);
    if (asyncComponentResult instanceof Promise) {
      resolvePromise(asyncComponentResult);
    } else {
      resolve({ component: asyncComponentResult });
    }
  }
  