how to execute google maps event “bounds_changed” only once

问题

How do I tell the google map event "bounds_change" to only work when the map is initially loaded, and not after user change?

回答1:

from the documentation

addListenerOnce(instance:Object, eventName:string, handler:function(?))
Return Value: MapsEventListener Like addListener, but the handler removes itself after handling the first event.

google.maps.event.addListenerOnce(map,'bounds_changed', function() {});

来源：https://stackoverflow.com/questions/30601828/how-to-execute-google-maps-event-bounds-changed-only-once