Text substitution based on city?

Question

Yandex

There is a code

ymaps.ready()
  .then(() => ymaps.geolocation.get({autoReverseGeocode: false})
  .then(res => res.geoObjects.get(0).geometry.getCoordinates()))
  .then(ll => ($('#latlng').append(`Координаты: ${ll}`), ymaps.geocode(ll)))
  .then(res => res.geoObjects.get(0).getLocalities())
  .then(city => $('#city').append(`Город: ${city}`))
  .catch(err => $('#err').append(`Ошибка: ${err}`))

Which determines the coordinates and the city.
How can I display different text in a block depending on the city?