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doc source examples comments

1.3.0

ref-history-count

clojure.core

(ref-history-count ref)

Returns the history count of a ref

© Rich Hickey. All rights reserved. Eclipse Public License 1.0

1 Example top

link | changes
```
user=> (def store (ref {}))
#'user/store
user=> (ref-history-count store)
0
user=> (ref-max-history store)
10
user=> (ref-min-history store)
0
```
user=> (def store (ref {})) #'user/store user=> (ref-history-count store) 0 user=> (ref-max-history store) 10 user=> (ref-min-history store) 0

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See Also top

0
clojure.core/ref-min-history
Gets the min-history of a ref, or sets it and returns the ref
0
clojure.core/ref-max-history
Gets the max-history of a ref, or sets it and returns the ref

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Source clojure/core.clj:2200 top

(defn ref-history-count
  "Returns the history count of a ref"
  {:added "1.1"
   :static true}
  [^clojure.lang.Ref ref]
    (.getHistoryCount ref))

© Rich Hickey. All rights reserved. Eclipse Public License 1.0

Vars in clojure.core/ref-history-count:

Used in 0 other vars

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