0_start

$ brew install leiningen
$ lein repl

start.clj

; define function
(defn square [x] (* x x))
(defn square "This return square of number" [x] (* x x))

; character
\a

; string
"abc"

; vector(関数定義時の引数とか)
[1 2 3]
[1, 2, 3]
(= [] '()) ; => true

; map
{:a 1 :b 2 :c 3}
{:a 1, :b 2, :c 3}
(hash-map :a 1 :b 2 :c 3) ; without macro
(hash-map :a 1, :b 2, :c 3) ; without macro

; hashSet
#{1 2 3}
#{1, 2, 3}
(hash-set 1 2 3) ; without macro
(hash-set 1, 2, 3) ; without macro