Hi :
Say, I have a (def *a (ref {:b [{:c 5}]})) .
I want to add 1 to the :c inside, how would I write?
(Note: the value 5 is in (:b 0 :c), while 0 is the array index)
(dosync (alter *a ______ )) ; please help me fill the blank.
Someone mention I can use the zipper library or the walker library,
but after I checked I still have no idea how to make it.
Thanks.
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