clojure.core/vary-meta

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Type: function Added: Clojure 1.0 Examples: 2 Runnable: 1

([obj f & args])

Returns an object of the same type and value as obj, with (apply f (meta obj) args) as its metadata.

Examples

by devn on 2010-08-02 ▶

(meta (vary-meta 'foo assoc :a 1)) {:a 1}

by mmwaikar on 2013-02-01 . May have evaluation errors. ▶

;; continuing from the previous with-meta example (def wm (with-meta [1 2 3] {:my "meta"})) #'user/wm wm [1 2 3] (meta wm) {:my "meta"} (def new-wm (vary-meta wm assoc :your "new meta")) #'user/new-wm new-wm [1 2 3] (meta new-wm) {:my "meta", :your "new meta"}

See also

• clojure.core/with-meta (1)
• clojure.core/alter-meta!

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