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You're viewing version 1.2.0 of number?. The latest stable version of Clojure Core is 1.3.0.

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1.2.0

1.2.0
1.3.0

number?

clojure.core

(number? x)

Returns true if x is a Number

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

1 Example top

link | changes
```
user=> (number? 1)
true
user=> (number? 1.0)
true
user=> (number? :a)
false
user=> (number? nil)
false
user=> (number? "23")
false
```
user=> (number? 1) true user=> (number? 1.0) true user=> (number? :a) false user=> (number? nil) false user=> (number? "23") false

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See Also top

0
clojure.core/num
Coerce to Number

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Source clojure/core.clj:2718 top

(defn number?
  "Returns true if x is a Number"
  {:added "1.0"}
  [x]
  (instance? Number x))

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

Vars in clojure.core/number?: defn instance?

Used in 12 other vars bigdec bigint show abs quantile combine-with length diag make-matrix transform-with deriv* all-numbers?

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