Say I've got this map of keys to integer values:
(def m {:one 0 :two 0 :three 0})
I want to write a function "inc-values-in-map" that takes such a map,
a collection of keys and will increment those keys' values in the map.
In other words, calling
(inc-values-in-map m [:one :three])
should return
{:one 1, :two 0, :three 1}
I've come up with this:
(defn inc-values-in-map
[map keys]
(merge-with + map (zipmap keys (repeat 1))))
Aren't there more elegant ways to implement this function?
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