clojure.core/aget

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Type: function Added: Clojure 1.0 Examples: 2 Runnable: 0

([array idx] [array idx & idxs])

Returns the value at the index/indices. Works on Java arrays of all types.

Examples

by dermatthias on 2010-09-11 . May have evaluation errors. ▶

;; create two arrays (def a1 (double-array '(1.0 2.0 3.0 4.0))) ;;=> #'user/a1 (def a2 (int-array '(9 8 7 6))) ;;=> #'user/a2 ;; get an item by index (aget a1 2) ;;=> 3.0 (aget a2 3) ;;=> 6 ;; 2d array and 2 indicies (def a3 (make-array Integer/TYPE 100 100)) ;;=> #'user/a3 (aget a3 23 42) ;;=> 0

by phreed on 2016-01-28 . May have evaluation errors. ▶

;; aget can be used to check the existence of an element ;; this approach works with documents in ClojureScript where core/contains? does not (aget js/document "getElementById") ;;=> #object[getElementById "function getElementById() { [native code] }"] (contains? js/document "getElementById") ;;=> false

See also

• clojure.core/aclone
• clojure.core/get (8)
• clojure.core/nth (1)
• clojure.core/contains? (2)
• clojure.core/aset (1)

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