Sava4

Clojure Destructuring Tutorial and Cheat Sheet

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.

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	(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 pneumatic-tubes.core
	(:require-macros [cljs.core.async.macros :refer [go-loop]])
	(:require [cljs.core.async :refer [close! chan <! put!]]
	[clojure.string :as str]
	[cognitect.transit :as t]))

	(def ^:private instances (atom {}))

	(def r (t/reader :json))
	(def w (t/writer :json))

Sava4

Clojure Destructuring Tutorial and Cheat Sheet

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