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specter 2025-05-14
Christian Dean 2025-05-14T13:59:42.492539Z
If I have a vector of strings, like this ["text" "text" "text"], and I have another empty vector which i want to transform to create maps for every string, like [{:key "text"} {:key "text"} {:key "text"}], how do I do that? The main constraint here is that i will also later add other keys to these maps, like [{:key "text" :other-key ""} {:key "text" :other-key ""} {:key "text" :other-key ""}], so I need a way to do this without removing or modifying the :other-keys in each map.
Christian Dean 2025-05-14T14:16:56.204679Z
This is how you do it without specter:
(def strings (r/atom ["text" "text" "text"]))
(def maps (r/atom []))
(defn sync-maps-with-strings! []
(let [current-strings @strings
current-maps @maps]
(reset! maps
(mapv
(fn [idx s]
(if (< idx (count current-maps))
;; Update existing map
(assoc (nth current-maps idx) :key s)
{:key s}))
(range (count current-strings))
current-strings))))
xificurC 2025-05-14T14:39:02.378469Z
you could also collapse in your solution the if to just
(assoc (nth current-maps idx {}) :key s)