If your application is set up to load markers and shapes from a server
based on the current bounds, it seems like a good idea to "garbage
collect" items that are no longer within the current bounds. Doesn't
look like there is built-in support for this (?), so I'm curious what
solutions people have come up with.
I keep a map of items and their bounds. Then whenever the view bounds
change ("idle" event) I go through that map and call setMap(null) on
items whose bounds no longer overlap with the current view bounds. But
there may be a better approach?
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