Chouser wrote:
> On Fri, Oct 30, 2009 at 11:30 AM, Alex Osborne <a...@meshy.org> wrote:
>> John Harrop wrote:
>>> Was something wrong with this?:
>>>
>>> (defn my-zipmap
>>>   "Returns a map with the keys mapped to the corresponding vals."
>>>   [keys vals]
>>>   (into {} (map vec (partition 2 (interleave keys vals)))))
>>>
>>> :)
>> One reason might be that the original zipmap is 5-10 times faster for
>> large numbers of entries as it doesn't create all the temporary seqs.
> 
> Another might be that into, partition and interleave don't exist
> yet when zipmap is defined.

Yep, although nothing else in core uses zipmap, so it could be moved 
after them.

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