Hello,
I'm not seeing clearly what you're after.
Given your example, it seems that it can be solved just by the following code:
=> (def e1 [{:a 1 :b "b" :c 300 }{:a 2 :b "a" :c 500 }])
(def e2 [{:a 1 :d "blah"}{:a 2 :d "blah2"}])
#'user/e1
#'user/e2
=> (map merge e1 e2)
({:d "blah", :a 1, :b "b", :c 300} {:d "blah2", :a 2, :b "a", :c 500})
(cause map can take more than one coll)
So I think the example may not be representative, and I'm missing something ...
2011/5/10 clj123123 <[email protected]>:
> I wanted to merge ArrayMap in a vector. Is there a way to do that?
> I put this together but wondering it there's already a library for
> that.
>
> (defn merge-by-field
> "xt must have field vals unique"
> [xs xt field]
> (let [fmerge (fn [id s]
> (merge s (first (filter #(= id (val (find % field)))
> xt))))]
> (for [i xs]
> (fmerge (field i) i))))
>
> (def e1 [{:a 1 :b "b" :c 300 }{:a 2 :b "a" :c 500 }])
> (def e2 [{:a 1 :d "blah"}{:a 2 :d "blah2"}])
>
> (merge-by-field e1 e2 :a)
>
>
> output:
> ({:d "blah", :a 1, :b "b", :c 300} {:d "blah2", :a 2, :b "a", :c 500})
>
>
> On May 10, 9:31 am, Jonathan Fischer Friberg <[email protected]>
> wrote:
>> use (merge e1 e2)
>>
>> Jonathan
>>
>>
>>
>> On Tue, May 10, 2011 at 6:11 PM, clj123123 <[email protected]> wrote:
>> > (def e1 {:a 1 :b "b" :c 300 })
>> > (def e2 {:a1 :d "blah"})
>>
>> > how to merge to get that?
>>
>> > {:a 1 :b "b" :c 300 :d "blah"}
>>
>> > also is there a way to merge if the ArrayMap was in a vector?
>>
>> > Thanks.
>>
>> > --
>> > You received this message because you are subscribed to the Google
>> > Groups "Clojure" group.
>> > To post to this group, send email to [email protected]
>> > Note that posts from new members are moderated - please be patient with
>> > your first post.
>> > To unsubscribe from this group, send email to
>> > [email protected]
>> > For more options, visit this group at
>> >http://groups.google.com/group/clojure?hl=en- Hide quoted text -
>>
>> - Show quoted text -
>
> --
> You received this message because you are subscribed to the Google
> Groups "Clojure" group.
> To post to this group, send email to [email protected]
> Note that posts from new members are moderated - please be patient with your
> first post.
> To unsubscribe from this group, send email to
> [email protected]
> For more options, visit this group at
> http://groups.google.com/group/clojure?hl=en
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to [email protected]
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
