clojure.set/subset?

function

since v0.0-927

clojure.set/subset?

(subset? set1 set2)

Details:

Returns true if a is a subset of b, false otherwise.

In other words, returns true if all the elements of a can be found in b.

See Also:

Source docstring:

Is set1 a subset of set2?

Source code @ clojurescript:src/main/cljs/clojure/set.cljs

(defn subset? 
  [set1 set2]
  (and (<= (count set1) (count set2))
       (every? #(contains? set2 %) set1)))