Limit the view of a map to a particular area for JS

[LefterisKoumis]

I came across this .net script and I was wondering if there is something similar for JS.

link 

[UndralBatsukh]

Yes you can set the geometry constraint on the MapView. You can see the behavior in this app: https://codepen.io/U_B_U/pen/zYyvWZQ?editors=100