Sava4

## 00_destructuring.md

      
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                Sava4
                / 00_destructuring.md
            
            
              Created
              March 20, 2017 16:03
                — forked from john2x/00_destructuring.md
            
              
                Clojure Destructuring Tutorial and Cheat Sheet
              
          
    Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)
Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.
Vectors


## core.clj
(ns maps.core)

;; In Clojure you can fetch items from a map three different ways.  Which should
;; you use when?

(= "bar" ({:foo "bar"} :foo))     ; map as function
(= "bar" (:foo {:foo "bar"}))     ; key as function
(= "bar" (get {:foo "bar"} :foo)) ; `get` as function

;; <INCIDENTALLY>
	(ns maps.core)

	;; In Clojure you can fetch items from a map three different ways. Which should
	;; you use when?

	(= "bar" ({:foo "bar"} :foo)) ; map as function
	(= "bar" (:foo {:foo "bar"})) ; key as function
	(= "bar" (get {:foo "bar"} :foo)) ; `get` as function

	;; <INCIDENTALLY>