coffeePractise10.coffee

# 分割代入
[a, b, c] = [1, 5, 10]
console.log a for a in [a, b, c]
# 1 5 10

# 入れ替え
x = 10
y = 20
show = (a, b) -> console.log "#{a} : #{b}"
show(x, y)	# 10 : 20
[x, y] = [y, x]
show(x, y)	# 20 : 10

# 複数の値を返す関数
results = (x) -> [x, x ** 2, x ** 3]
[a, b, c] = results 5
console.log a for a in [a, b, c]
# 5 25 125

# オブジェクトから複数の値を取り出す
user = 
	name 	: "chuck"
	score	: 60
	email 	: "chuck@mail"

{name, email} = user

console.log name	# chuck
console.log email	# email