How can I check the marker is or isn't in the bounds using google maps v3

Question

This is my code, I think it may has some mistakes:

        var bounds_array;         google.maps.event.addListener(map,'bounds_changed', function (){             var bounds_=map.getBounds();             if(bounds_){                 var leftBottom=[bounds_.getSouthWest().lat(),bounds_.getSouthWest().lng()]                 var rightTop=[bounds_.getNorthEast().lat(),bounds_.getNorthEast().lng()]                 bounds_array=[leftBottom,rightTop];             }         });      function check_is_in_or_out(marker){         var leftBottom=bounds_array[0],rightTop=bounds_array[1];         var marker_p=[marker.getPosition().lat(),marker.getPosition().lng()];         if(marker_p[0]<leftBottom[0]||marker_p[0]>rightTop[0]||             marker_p[1]<leftBottom[1]||marker_p[1]>rightTop[1])return 0;//0 is out         else return 1;//1 is in     } 

Is this code enough to check the bounds is in or out?

Answer 1

The LatLngBounds object comes with a contains() method which takes a LatLng point and returns true if the point happens to be within the bounds, or false if outside.

Therefore, what about something like the following?

function check_is_in_or_out(marker){   return map.getBounds().contains(marker.getPosition()); }