如果向量大小小于一定量，则连接到clojure向量

我有三个向量：

(def v1 ["one" "two" "three"])
(def v2 ["one" "two" "three" "four"])
(def v3 ["one" "two" "three" "four" "five"])

我需要确保向量的大小始终为5个元素。我想要一个函数传递给每个函数，当大小小于5时，该函数将检查大小并将空字符串作为占位符连接，这样我可以得到：

(def new-v1 ["one" "two" "three" "" ""])
(def new-v2 ["one" "two" "three" "four" ""])
(def new-v3 ["one" "two" "three" "four" "five"])

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谢谢。

您可以为vector++重复的空字符串创建一个惰性seq，并从中提取5个元素：

(defn process [items]
  (into [] (take 5 (concat items (repeat "")))))

user> (process ["a" "b"])
["a" "b" "" "" ""]

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您可以为vector++重复的空字符串创建一个惰性seq，并从中获取5个元素：

(defn process [items]
  (into [] (take 5 (concat items (repeat "")))))

user> (process ["a" "b"])
["a" "b" "" "" ""]

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太完美了！谢谢，太完美了！谢谢