Map#get needs a default value param?

Brendan Eich brendan at
Tue Jun 12 10:30:09 PDT 2012

Tab Atkins Jr. wrote:
> This isn't too bad, and we can always wait for the language to expand
> with subtypes of Map that handle this behavior better (or use a
> library), like the aforementioned Counter and DefaultDict of Python.

et seq.


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