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acobster/oxford.clj

Created December 29, 2020 09:28
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Oxford Comma
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oxford.clj
(defn oxford-comma [phrases]
(if (> (count phrases) 2)
(join ", and " [(join ", " (butlast phrases)) (last phrases)])
(join " and " phrases)))
(oxford-comma []) ;; => ""
(oxford-comma ["one"]) ;; => "one"
(oxford-comma ["one" "two"]) ;; => "one and two"
(oxford-comma ["one" "two" "three"]) ;; => "one, two, and three"
(oxford-comma ["one" "two" "three" "four"]) ;; => "one, two, three, and four"
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