From: "S.Z." <zbl@...>
Date: 2006-09-20T22:35:12+09:00
Subject: Re: the point of omitting parentheses

Timothy Goddard писал(а):

> > 2) such methods as DRb::start_service or join need empty parentheses --
> > like start_service() or join();
>
> No, they don't.
The motivation follows:
join without parentheses is a function call like self.join, returning
String for Array.
I should add () to emphasize that the join is an action -- not a value.
If I wrote join without () this means self.join with self omited.

> > 3) methods with one String argument like puts "Hello!"  or p
> > self.inspect need no parentheses;
>
> Correct again.
>
> > 4) p with two or more arguments or with one argument of type different
> > from String need parentheses.
>
> Did you bother to check this?
Yes I did.
In addition, I do write
    print "#{a.inspect}"
insted of
    print a.inspect
I think of the reader. Is it axtra-thinking? -- may be.

> I prefer the lack of parentheses for the first function on a line. I
> always parenthesise functions passed as an argument to another even
> where only a single argument is taken though.
It is a rule.  Thanks.

Respects,
S.Z.