set

function

since v0.0-927

clojure.core/set

Edit

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Details:

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See Also:

• hash-set
• sorted-set
• conj
• disj
• distinct
• clojure.set/join
• clojure.set/select
• clojure.set/difference
• clojure.set/intersection
• clojure.set/union
• clojure.set/index
• clojure.set/project
• clojure.set/rename
• clojure.set/rename-keys
• clojure.set/map-invert

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Source docstring:

Returns a set of the distinct elements of coll.

(defn set
  [coll]
  (if (set? coll)
    (with-meta coll nil)
    (let [in (seq coll)]
      (cond
        (nil? in) #{}

        (and (instance? IndexedSeq in) (zero? (.-i in)))
        (.createAsIfByAssoc PersistentHashSet (.-arr in))

        :else
        (loop [^not-native in  in
               ^not-native out (-as-transient #{})]
          (if-not (nil? in)
            (recur (next in) (-conj! out (-first in)))
            (persistent! out)))))))

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