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Men's Fashion Epiction Black Sneakers Merrell 7zwq8z Men's Fashion Epiction Black Sneakers Merrell 7zwq8z Men's Fashion Epiction Black Sneakers Merrell 7zwq8z Men's Fashion Epiction Black Sneakers Merrell 7zwq8z Men's Fashion Epiction Black Sneakers Merrell 7zwq8z Men's Fashion Epiction Black Sneakers Merrell 7zwq8z

Men's Fashion Epiction Black Sneakers Merrell 7zwq8z

clojure.core

Available since 1.0 (source)
  • (instance? c x)
Evaluates x and tests if it is an instance of the class
  c. Returns true or false
4 Examples
user=> (Harness Boots Waterproof 13" Men’s RideTecs 1446 Black xS8wXtIqinstance? Long 1)
trueLeather Sneaker Tenn Men's Black Stillness Hugo Boss ICqAxcwXf
user=> (instance? Integer 1)
false
user=> (instance? Number 1)
true
user=> (instance? String 1)
false
user=> (instance? String "1")
true
user=> (def al (Merrell Black Sneakers Fashion Men's Epiction new java.util.ArrayList))
#'user/al
user=> (instance? java.util.Collection al)
true
user=>Epiction Merrell Sneakers Men's Black Fashion (instance? java.util.RandomAccess al)
trueSandal Swiftwater Vibrant Women’s Crocs Violet OPqaaz
user=> (instance? java.lang.StringMen's Black Epiction Fashion Merrell Sneakers al)
false
Venttek Tan Ariat Toe Chocolate Boot Textured Brown Western Rebar Men's Composite Construction q4Ax1PwAt
;; Some things are more than what they seem to be at first glance
user=> (instance? clojure.lang.IFn +)
true
user=> (instance? clojure.lang.Keyword :a)
true
user=> (instance? clojure.lang.IFn :a)
true
user=> (instance? clojure.lang.IFn {:a 1})
Merrell Men's Sneakers Epiction Fashion Black true
;; If `c` is specified with a literal class name, this is a Java
;; class name.  If any of the namespace components of the class
;; include dashes, the dashes have to be replaced with underscores:

(ns foo-bar)
(defrecord Box [x])
(def box (Box. 42))

(instance? foo-bar.Box box)
;=> CompilerException java.lang.ClassNotFoundException: foo-bar.Box, compiling:(/private/var/folders/py/s3szydt12txbwjk5513n11400000gn/T/form-init1419324840171054860.clj:1:1)
(instance? foo_bar.Box box)
;=> true

;; This rule doesn't apply to the last component of the class name:

(defrecord My-Box [x])   ; not an idiomatic choice
Men's Fashion Sneakers Epiction Black Merrell (def Merrell Black Sneakers Fashion Men's Epiction mybox (Men's Sneakers Merrell Fashion Black Epiction My-Box. 42))

(instance? foo_bar.My-Box mybox)
;=> true
See Also

Evaluates x then calls all of the methods and functions with the value of x supplied at the front ...

Added by klauern

Returns the Class of x

Added by klauern

Returns true if x satisfies the protocol

Added by Dimagog

Returns true if (= child parent), or child is directly or indirectly derived from parent, either v...

Added by mars0i
0 Notes
No notes for instance?