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https://github.com/janet-lang/janet
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23 lines
718 B
Plaintext
23 lines
718 B
Plaintext
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(defn put-in [coll keys val]
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(defn assoc [the-coll n]
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(if-let [current-key (get keys n)
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current-val (get the-coll current-key)]
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(put the-coll current-key (assoc current-val (inc n)))
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val))
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(assoc coll 0))
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(defn update-in [coll keys an-fn]
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(def new-keys (array-slice coll 0 -2) )
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(def last-key (get (array-slice coll -1 -2) 0))
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(defn assoc [the-coll n]
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(if-let [current-key (get keys n)
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current-val (get the-coll current-key)]
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(put the-coll current-key (assoc current-val (inc n)))
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( update the-coll last-key an-fn )))
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(assoc coll new-keys 0))
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;; (defn update-in-test [ ] (update-in @{:a "x" :b {:y {"pipa" 3}}} [:b :y "pipa"] type))
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