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doc source examples comments

1.3.0

empty?

clojure.core

(empty? coll)

Returns true if coll has no items - same as (not (seq coll)).
Please use the idiom (seq x) rather than (not (empty? x))

3 Examples top

link | changes
```
user=> (empty? ())
true
user=> (empty? '(1))
false
```
<pre>user=> (empty? ()) true user=> (empty? '(1)) false</pre>
link | changes
```
user=> (every? empty? ["" [] () '() {} #{} nil])
true

;example of recommended idiom for testing if not empty
user=> (every? seq ["1" [1] '(1) {:1 1} #{1}])
true
```
user=> (every? empty? ["" [] () '() {} #{} nil]) true ;example of recommended idiom for testing if not empty user=> (every? seq ["1" [1] '(1) {:1 1} #{1}]) true
link | changes
```
user=> (drop-while empty? ["" [] "foobar"])
("foobar")
```
<pre> user=> (drop-while empty? ["" [] "foobar"]) ("foobar") </pre>

Source clojure/core.clj:5446 top

(defn empty?
  "Returns true if coll has no items - same as (not (seq coll)).
  Please use the idiom (seq x) rather than (not (empty? x))"
  {:added "1.0"
   :static true}
  [coll] (not (seq coll)))

Vars in clojure.core/empty?:

Used in 0 other vars

ClojureDocs(beta)

Clojure Core

Namespaces

empty?

clojure.core

3 Examples top

See Also top

Source clojure/core.clj:5446 top

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