Thoughts on WeakMaps

Brendan Eich brendan at
Tue Jun 7 09:02:03 PDT 2011

On Jun 7, 2011, at 7:41 AM, David Bruant wrote:

> Le 06/06/2011 17:31, David Bruant a écrit :
>> myWeakMap.set(key, value) doesn't return anything. It could return the previous value for the key (if such a thing exists). Is it intentional that the set function doesn't return anything?
> Anyone has thoughts on this point?

I've used that "return the old value" pattern with success before. Mark may have a reason for not using it here, though.

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