coffeePractise7.coffee

# for

# スタンダードな使い方。
sum = 0
for i in [0..9]
	sum += i
console.log sum

# 処理文と条件文の順序を逆にすることもできる
sum = 0 
sum += i for i in [0..9]
console.log sum

# 2コ飛ばし
sum = 0
sum += i for i in[0..9] by 2
console.log sum

# 配列内包
sum = 0
total = (sum += i for i in [0..9])
console.log total # [0, 1, 3, 6, 10, 15 ....]

# while
i = 0
sum = 0
while i < 10
	sum += i
	i++
console.log sum