MapKit JS - Center Map Around Coordinates

I'm working with MapKit JS for the first time. I'm using the 'Annotations With a Custom Callout' sample code as my starting point as my map will need to work in a similar way to this one.

I've got the basics working but I would now like to specify the center coordinates for the map but can't get this to work and not sure of the correct syntax.

For example if I wanted that map to centre around these coordinates:

(37.8184493, -122.478409)

I'm not sure where/how to specify these. I've tried adding:

var center = new mapkit.Coordinate(37.8184493, -122.478409);

after:

const map = new mapkit.Map("map");

but this doesn't change how the map is displayed. Appreciate if someone can show me where/how to specify the center coordinates for this type of map.

MapKit JS - Center Map Around Coordinates
 
 
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