Another common use case: leveraging the thrush operator.
(-> odd-coll :foo :bar :baz)
On Friday, December 21, 2012 12:57:15 AM UTC+1, tbc++ wrote:
>
> I use them sometimes in transversing deep maps:
>
> (def odd-coll [{:foo {:bar {:baz 42}}}
> {:foo {:bar {:baz 43}}}])
>
> (def find-it (comp :baz :bar :foo))
>
> (map find-it odd-coll)
>
> ; [42 43]
>
>
> On Thu, Dec 20, 2012 at 4:41 PM, Dave Ray <dav...@gmail.com
> <javascript:>>wrote:
>
>> You can avoid superfluous anonymous functions. For example, this:
>>
>> (map #(get % :id) my-sequence)
>>
>> vs this:
>>
>> (map :id my-sequence)
>>
>> Cheers,
>>
>> Dave
>>
>>
>> On Thu, Dec 20, 2012 at 3:13 PM, Jonathon McKitrick
>> <jmcki...@gmail.com <javascript:>> wrote:
>> > I thought it was pretty interesting to treat maps as functions, and even
>> > more intrigued at treating keywords as functions as well.
>> >
>> > What does this gain from a language design perspective, that you cannot
>> get
>> > with (get map keyword) or ever (map keyword)? Why the additional
>> option of
>> > (keyword map) ?
>> >
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>
>
>
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