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1.3.0

while

clojure.core

(while test & body)

Repeatedly executes body while test expression is true. Presumes
some side-effect will cause test to become false/nil. Returns nil

1 Example top

link | changes
```
user=> (def a (atom 10))                                
#'user/a

user=> (while (pos? @a) (do (println @a) (swap! a dec)))
10
9
8
7
6
5
4
3
2
1
nil
```
user=> (def a (atom 10)) #'user/a user=> (while (pos? @a) (do (println @a) (swap! a dec))) 10 9 8 7 6 5 4 3 2 1 nil

Source clojure/core.clj:5569 top

(defmacro while
  "Repeatedly executes body while test expression is true. Presumes
  some side-effect will cause test to become false/nil. Returns nil"
  {:added "1.0"}
  [test & body]
  `(loop []
     (when ~test
       ~@body
       (recur))))

Vars in clojure.core/while:

Used in 0 other vars

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Clojure Core

Namespaces

while

clojure.core

1 Example top

See Also top

Source clojure/core.clj:5569 top

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