Might it be possible to use a map instead? Maps are designed to look values
up by a key which may differ from the value, which seems to be your use
case here.
If you have
{1 {:id 1, :foo "bar"},
2 {:id 2, :foo "car"}}
You can just do
(disj my-map 2)
To convert the original set into a map, you could do something like:
(into {} (map (juxt :id identity) my-set))
Phil
On Mar 23, 2012 2:59 AM, "Leandro Oliveira" <lolive...@gmail.com> wrote:
>
> Hi all,
>
> I have a set of hash like this:
>
> #{{:id 1, :foo "bar"} {:id 2, :foo "car"}}
>
> and I'd like to remove an item based on its id value.
>
> Unfortunately, disj requires that I pass the whole map as key to remove
it.
>
> Can I remove the map from the set only using the id?
>
> My intention is to avoid a lookup on set to get the whole map back.
>
> Any suggestions?
>
>
> Thanks in advance.
> leandro.
>
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