如何在ClojureScript中使用命名參數？

Question

在clojure中，我可以使用defnk來獲取命名參數。 如何在ClojureScript中實現相同的功能？

Answer 1

ClojureScript中命名的args功能與Clojure中的相同：

(defn f [x & {:keys [a b]}] 
  (println (str "a is " a " and b is " b)))

(f 1)
; a is  and b is 

(f 1 :a 42)
; a is 42 and b is 

(f 1 :a 42 :b 108)
; a is 42 and b is 108

如果您需要默認值，請將原始內容更改為：

(defn f [x & {:keys [a b] :or {a 999 b 9}}]
  (println (str "a is " a " and b is " b)))

(f 1)
; a is 999 and b is 9

這與Clojure的好答案有關- 命名參數