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update-in

functionv1.0

clojure.core/update-in

Available in:BBCLJCLJS
(update-in [m ks f & args])
'Updates' a value in a nested associative structure, where ks is a sequence of keys and f is a function that will take the old value and any supplied args and return the new value, and returns a new nested structure. If any levels do not exist, hash-maps will be created.

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