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Date: Wed, 22 Apr 2009 16:00:04 +0200
Message-ID: <9acd6e550904220700m2657cca8sdf51dae370e84d48@mail.gmail.com>
Subject: Re: The sum function (used in reduce)
From: Thomas Heller <th.heller@gmail.com>
To: user@couchdb.apache.org
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Hey,

you can find it in COUCH_HOME/share/server/main.js

sum = function(values) {
  var rv = 0;
  for (var i in values) {
    rv += values[i];
  }
  return rv;
}

And no, its the only "helper" function.

Regards,
/thomas


On Wed, Apr 22, 2009 at 3:55 PM, Rangachari Anand <rxanand@gmail.com> wrote:

> I searched all over the wiki and did not see any description of the
> sum function that can be called in the reduce method of
> a view. I can guess what it does but a pointer to more
> concrete information would be appreciated.
>
> There is only a passing reference to it in the page
> http://wiki.apache.org/couchdb/Introduction_to_CouchDB_views
>
> Are there any other handy functions that could be called from inside
> map or reduce?
>
> Thanks
> Rangachari Anand
>

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