clojure.core/var

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Type: var Added: Clojure unknown Examples: 3 Runnable: 0

()

The symbol must resolve to a var, and the Var object itself (not its value) is returned. The reader macro #'x expands to (var x). See http://clojure.org/special_forms for more information.

Examples

by boxie on 2010-11-08 . May have evaluation errors. ▶

;;getting meta-data for a defined symbol (as opposed to what it's pointing to. meta #<core$meta clojure.core$meta@2e257f1b> (var meta) #'clojure.core/meta ;; Reader shortcut for var is #' #'meta #'clojure.core/meta (meta (var meta)) {:ns #<Namespace clojure.core>, :name meta, :file "clojure/core.clj", :line 178, :arglists ([obj]), :doc "Returns the metadata of obj, returns nil if there is no metadata.", :added "1.0"}

by AtKaaZ on 2013-02-28 . May have evaluation errors. ▶

=> *clojure-version* {:major 1, :minor 5, :incremental 0, :qualifier "RC17"} => var ;CompilerException java.lang.RuntimeException: Unable to resolve symbol: var in this context, compiling:(NO_SOURCE_PATH:1:42) => (var) ;CompilerException java.lang.NullPointerException, compiling:(NO_SOURCE_PATH:1:1) => (var 1) ;CompilerException java.lang.ClassCastException: java.lang.Long cannot be cast to clojure.lang.Symbol, compiling:(NO_SOURCE_PATH:1:1) => (var defn) #'clojure.core/defn => (var defn 1 2 3 4) #'clojure.core/defn

by beoliver on 2017-10-29 . May have evaluation errors. ▶

(def a 1) #'user/a (def b (var a)) #'user/b (alter-var-root (var a) inc) 2 (alter-var-root b inc) 3 (deref b) 3

See also

• clojure.core/meta (0)
• clojure.core/symbol (0)
• clojure.core/symbol?
• clojure.core/var? (0)
• clojure.core/binding (2)
• clojure.core/with-redefs (1)
• clojure.core/with-redefs-fn (0)
• clojure.core/set! (1)
• clojure.core/var-set (1)
• clojure.core/var-get (1)
• clojure.core/with-local-vars (0)

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