On Mon, 2011-10-10 at 18:16 -0700, Ari wrote:
> Unfortunately, the
> solution wraps the result within another list, anyone know why?
> Thanks.
>
> (defn collapse [data & keys-coll]
> (if (map? data)
> (for [[k v] data]
> (collapse v (if (nil? keys-coll)
> (conj [] k)
> (conj (into [] keys-coll) k))))
> (hash-map (flatten keys-coll) data)))
I've reindented your example slightly, which should make it clearer: one
of your branches is a `for', which always yields a lazy sequence.
Rewriting to the equivalent `map' form would make it even clearer.
This does yield an interesting potential alternative, though: you could
think of maps and vectors as key/value sequences all the way down, so
producing a lazy result. You can always get the map back with (into
{} ...) at that point.
--
Stephen Compall
^aCollection allSatisfy: [:each|aCondition]: less is better
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