How to limit the display area on the map using the Yandex.Map API?

Question

JavaScript

The essence of the task: It is necessary to display a map of the city on the site and limit movement on it to the area of ​​this city. I found a special parameter restrictMapArea
in the API description , but for some reason it is ignored when the map is initialized:

function inc() {
            var map = new ymaps.Map("map", {
                center: [56.3177, 38.1368],
                restrictMapArea:,
                zoom: 15
            });
        }

Actually, what am I doing wrong? Whether there are not "crutch" alternatives?

Answer 1

You are trying to pass map options as the second parameter instead of the third.
https://tech.yandex.ru/maps/doc/jsapi/2.1/ref/ref...

Answer 2

Service for determining coordinates https://nominatim.openstreetmap.org/ui/search.html