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1.3.0 permalink

1.2.0
1.3.0

set

clojure.core

(set coll)

Returns a set of the distinct elements of coll.

2 Examples top

link | changes
```
;; returns distinct elements
user=> (set '(1 1 2 3 2 4 5 5))
#{1 2 3 4 5}

;; returns distinct elements (different nomenclature)
user=> (set [1 1 2 3 2 4 5 5])
#{1 2 3 4 5}

user=> (set [1 2 3 4 5])  
#{1 2 3 4 5}

user=> (set "abcd")
#{\a \b \c \d}

user=> (set '("a" "b" "c" "d"))
#{"a" "b" "c" "d"}

user=> (set {:one 1 :two 2 :three 3})
#{[:two 2] [:three 3] [:one 1]}
```
;; returns distinct elements user=> (set '(1 1 2 3 2 4 5 5)) #{1 2 3 4 5} ;; returns distinct elements (different nomenclature) user=> (set [1 1 2 3 2 4 5 5]) #{1 2 3 4 5} user=> (set [1 2 3 4 5]) #{1 2 3 4 5} user=> (set "abcd") #{\a \b \c \d} user=> (set '("a" "b" "c" "d")) #{"a" "b" "c" "d"} user=> (set {:one 1 :two 2 :three 3}) #{[:two 2] [:three 3] [:one 1]}
link | changes
```
(set [1 2 3 2 1 2 3])
-> #{1 2 3}

#{:a :b :c :d}
-> #{:d :a :b :c}

(hash-set :a :b :c :d)
-> #{:d :a :b :c}
 
(sorted-set :a :b :c :d)
-> #{:a :b :c :d}

;------------------------------------------------

(def s #{:a :b :c :d})
(conj s :e)
-> #{:d :a :b :e :c}
 
(count s)
-> 4
 
(seq s)
-> (:d :a :b :c)
 
(= (conj s :e) #{:a :b :c :d :e})
-> true

(s :b)
-> :b
 
(s :k)
-> nil
```
(set [1 2 3 2 1 2 3]) -> #{1 2 3} #{:a :b :c :d} -> #{:d :a :b :c} (hash-set :a :b :c :d) -> #{:d :a :b :c} (sorted-set :a :b :c :d) -> #{:a :b :c :d} ;------------------------------------------------ (def s #{:a :b :c :d}) (conj s :e) -> #{:d :a :b :e :c} (count s) -> 4 (seq s) -> (:d :a :b :c) (= (conj s :e) #{:a :b :c :d :e}) -> true (s :b) -> :b (s :k) -> nil

Source clojure/core.clj:3637 top

(defn set
  "Returns a set of the distinct elements of coll."
  {:added "1.0"
   :static true}
  [coll] (clojure.lang.PersistentHashSet/create (seq coll)))

Vars in clojure.core/set:

Used in 0 other vars

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Clojure Core

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set

clojure.core

2 Examples top

See Also top

Source clojure/core.clj:3637 top

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