Map#get needs a default value param?
hemanth.hm at gmail.com
Tue Jun 12 09:16:56 PDT 2012
True! It will be confusing; || is uber kool :)
On Tue, Jun 12, 2012 at 9:37 PM, David Bruant <bruant.d at gmail.com> wrote:
> Le 12/06/2012 18:02, Tab Atkins Jr. a écrit :
> On Tue, Jun 12, 2012 at 7:36 AM, David Bruant<bruant.d at gmail.com> wrote:
>>> Le 12/06/2012 16:19, Hemanth H.M a écrit :
>>> Would it be useful to have something like sum[value] = sum.get(value, 0)
>>> + 1
>>> You can always do
>>> sum[value] = (sum.get(value) || 0) + 1;
>>> I think it's simple enough to justify not having an additional (and
>>> potentially confusing) argument, but I'm open to debate.
>> The default argument in python's Dict.get doesn't seem confusing, and
>> I've used it plenty. (I've also used the more specialized Dict
>> variants that obviate it - Counter and DefaultDict.)
> and falsy values) as to when the value is 0, while for "sum.get(value, 0)",
> the implicit part is in the semantics of the function for which you need to
> look at the spec, that's what I find more confusing. YMMV.
*'I am what I am because of who we all are'*
*-- Hemanth HM *
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