関数の引数がないときはカッコを省略できない
a1 = -> alert 'hi everyone!' a2 = -> alert 'good bye everyone' square = (n) -> n * n a2 #<- This doesn't work, that is require parenthesis a1()
a1 = -> alert 'hi everyone!' a2 = -> alert 'good bye everyone' square = (n) -> n * n a2 #<- This doesn't work, that is require parenthesis a1()