Clojure Core

Namespaces

clojure
- core
  - protocols
- data
- inspector
- java
  - browse
  - browse-ui
  - io
  - javadoc
  - shell
- main
- pprint
- reflect
- repl
- set
- stacktrace
- string
- template
- test
  - junit
  - tap
- walk
- xml
- zip

1.3.0

=

Equality. Returns true if x equals y, false if not. Same as
Java x.equals(y) except it also works for nil, and compares
numbers and collections in a type-independent manner. Clojure's immutable data
structures define equals() (and thus =) as a value, not an identity,
comparison.

1 Example top

link | changes
```
user=> (= 1)
true
user=> (= 1 1)
true
user=> (= 1 2)
false
user=> (= 1 1 1)
true
user=> (= 1 1 2)
false
user=> (= '(1 2) [1 2])
true
user=> (= nil nil)
true

;; It should be noted that equality is not defined for Java arrays.
;; Instead you can convert them into sequences and compare them that way.
;; (= (seq array1) (seq array2))
```
user=> (= 1) true user=> (= 1 1) true user=> (= 1 2) false user=> (= 1 1 1) true user=> (= 1 1 2) false user=> (= '(1 2) [1 2]) true user=> (= nil nil) true ;; It should be noted that equality is not defined for Java arrays. ;; Instead you can convert them into sequences and compare them that way. ;; (= (seq array1) (seq array2))

Source clojure/core.clj:718 top

(defn =
  "Equality. Returns true if x equals y, false if not. Same as
  Java x.equals(y) except it also works for nil, and compares
  numbers and collections in a type-independent manner.  Clojure's immutable data
  structures define equals() (and thus =) as a value, not an identity,
  comparison."
  {:inline (fn [x y] `(. clojure.lang.Util equiv ~x ~y))
   :inline-arities #{2}
   :added "1.0"}
  ([x] true)
  ([x y] (clojure.lang.Util/equiv x y))
  ([x y & more]
   (if (= x y)
     (if (next more)
       (recur y (first more) (next more))
       (= y (first more)))
     false)))

Vars in clojure.core/=:

Used in 0 other vars

ClojureDocs(beta)

Clojure Core

Namespaces

=

clojure.core

1 Example top

See Also top

Source clojure/core.clj:718 top

Comments top

No comments for =. Log in to add a comment.