Поиск полного имени в угловом

const response = forkJoin([
  this.service.getUserByFirstName(this.firstName),
  this.service.getUserByLastName(this.lastName)
]);

response.subscribe(
  ([firstNameUsers, lastNameUsers]) => this.users = lodash.intersectionWith(firstNameUsers, lastNameUsers, lodash.isEqual)
);
Doubtful Donkey