user> (let [inputs (concat e1 e2)]
(map (partial apply merge)
(vals (group-by :a inputs))))
({:d "blah", :a 1, :b "b", :c 300} {:d "blah2", :a 2, :b "a", :c 500})
On May 10, 10:10 am, clj123123 <ariela2...@gmail.com> wrote:
> 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 <odysso...@gmail.com>
> wrote:
>
> > use (merge e1 e2)
>
> > Jonathan
>
> > On Tue, May 10, 2011 at 6:11 PM, clj123123 <ariela2...@gmail.com> 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.
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