To add a little, into is generic and has no special treatment if the
collection is a map, but works with maps if the elements are vectors
because map associations of key-value pairs are a subclass of vector. The
other way around:
user=> (for [elem {:foo :bar}] elem)
([:foo :bar]) ; extracts :foo -> :bar as a vector
On Wednesday, March 26, 2014 5:51:09 PM UTC-7, Robert Marianski wrote:
> into expects that because it is implemented with conj.
>
> > (conj {} [:foo :bar])
> {:foo :bar}
>
>
> On Wednesday, March 26, 2014 4:41:16 PM UTC-4, Michael Gardner wrote:
>>
>> For reasons unclear to me, (into {} ...) expects a sequence of 2-element
>> *vectors*, not just 2-element collections. partition returns a seq of
>> lists, not vectors, which is why you're getting that exception. You could
>> try (into {} (map vec (partition 2 2 "12"))) instead.
>>
>> On Mar 26, 2014, at 15:36 , Andy Smith <[email protected]> wrote:
>>
>> > Hi all,
>> >
>> > I was wondering why this doesn't create a map 1 -> 2 :
>> >
>> > (into {} (partition 2 2 "12"))
>> >
>> > Must be yet another misunderstanding of mine.
>> >
>> > Thanks
>> >
>> > Andy
>> >
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