cat

function

since v0.0-2341

clojure.core/cat

Edit

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Source docstring:

A transducer which concatenates the contents of each input, which must be a
collection, into the reduction.

(defn cat
  {:added "1.7"}
  [rf]
  (let [rf1 (preserving-reduced rf)]
    (fn
      ([] (rf))
      ([result] (rf result))
      ([result input]
         (reduce rf1 result input)))))

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