bounded-count

function

since v1.9.85

clojure.core/bounded-count

Edit

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Source docstring:

If coll is counted? returns its count, else will count at most the first n
elements of coll using its seq

(defn bounded-count
  {:added "1.9"}
  [n coll]
  (if (counted? coll)
    (count coll)
    (loop [i 0 s (seq coll)]
      (if (and (not (nil? s)) (< i n))
        (recur (inc i) (next s))
        i))))

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