Display map on page when needed?

Question

JavaScript

Hello Tosturians!
This is the problem, it’s not the first time I’ve encountered it and I don’t know how to solve it correctly: there are maps on the site (several, on different pages), their initialization is written in the general script, when I open a page that does not have a container for some kind of map, it gives an error in the console that it was not possible to do this or that action.
There is a suspicion that beyond the moment where the error is thrown, the script does not execute, how to make it determine whether there is a block on the page and has already initialized it, is this or that block on the page?

Answer 1

if($('#MAPCONTAINER').length){
  //инициализируем карту
}