On Sep 14, 2011, at 11:09 PM, Allen Wirfs-Brock wrote: > I would prefer ObjectMap (the keys are restricted to objects). Now that you point it out (again), I agree. People who know a bit about GC also confuse WeakMap with WeakRef/WeakPtr, which we have only in the strawman space: http://wiki.ecmascript.org/doku.php?id=strawman:weak_references /be