group-by is slightly different in that it wraps every value in a vector,
and those vectors will contain multiple items if there is an id collision.
So that may be what the OP wanted, but it also is a change in semantics.
I we can simplify the code a bit to (zipmap (map :id data) data) which is
about as simple as you are going to get.
Timothy
On Wed, Oct 12, 2016 at 9:29 AM, lvh <_...@lvh.io> wrote:
>
>
> On Oct 12, 2016, at 10:26 AM, tmountain <tinymount...@gmail.com> wrote:
>
> Hi, I'm trying to transform a sequence of data to a map, and I'm using the
> following pattern.
>
> (def data [ {:id 1, :name "foo"}, {:id 2, :name "bar"}])
>
> (zipmap (map #(:id %) data) data)
>
> ; result: {1 {:id 1, :name "foo"}, 2 {:id 2, :name "bar”}}
>
>
> Consider: (group-by :id data)
>
> Is this the most idiomatic way to accomplish this transformation? If not,
> what is?
>
> Thanks,
> Travis
>
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