如何遍历 clojure 中的地图列表并将其连接到字符串

Question

我有一个地图列表，其中包含两个键：path 和 :size

 listOfMaps ({:path "a " :size "1 "}{{:path "b " :size " 2"}...)

如何迭代它并将它的路径和大小连接到一个字符串，以便它介于两者之间

即

 str "initial" "a" "1" "b" "2" .... "end"

即通过循环填充的路径和大小应介于字符串 "initial" 和 "end"

之间

Answer 1

也许它很重，但我觉得它很有趣

(defn str-values [data]
  (as-> data d
        (map vec d)
        (flatten d)
        (remove keyword? d)
        (concat ["initial"] d ["end"])
        (apply str d)))

输出

"initiala1b2end"

这是你想要的吗？

编辑 OlegTheCat 更正

(defn str-values [data]
  (as-> data d
        (map (juxt :path :size) d)
        (flatten d)
        (remove keyword? d)
        (concat ["initial"] d ["end"])
        (apply str d)))

Answer 2

(apply str
       `("initial"
         ~@(mapcat (juxt :path :size) list-of-maps)
         "end"))

如何遍历 clojure 中的地图列表并将其连接到字符串

how to iterate over a list of maps in clojure and concatenate that to a string

clojure

clojure-java-interop