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58 lines
1.5 KiB
Clojure
58 lines
1.5 KiB
Clojure
(ns clojure-sample.core
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(:gen-class))
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(require '[clj-time.core :as t])
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(require '[clj-time.format :as f])
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;; Product record
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(defrecord Product [id name available price])
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;; Positional constructor
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(def product1 (->Product "1" "T-Shirt 1" true 15.00))
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;; Map constructor
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(def product2 (map->Product
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{:id "2"
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:name "T-Shirt 2"
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:available true
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:price 20.00}))
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;; Nested
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(def product3 {:id "1"
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:name "Product 1"
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:available true
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:sellers [{:id "1"
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:name "Seller 1"
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:stock 3},
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{:id 2
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:name "Seller 2"
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:stock 5}]})
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;; Set
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(def categories #{"shirts" "shoes" "belts"})
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;; List
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(def wishlist '(1 2))
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;; Recursion
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(defn factorial [value] (cond
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(<= value 1) 1
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:else (* value (factorial (- value 1)))))
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(def basic-formatter (f/formatter "YYYY-MM-dd hh:mm:ss"))
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(defn now [] (f/unparse basic-formatter (t/now)))
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(defn log
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([] (println (now) "No message"))
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([message] (println (now) message)))
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(defn -main
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[& args]
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(println (:id product1))
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(println (:name product2))
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(println (:name (get (:sellers product3) 0)))
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(println (first categories))
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(println wishlist)
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(println (factorial 5))
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(log)
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(log "Message"))
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