From: Trys <trys@...>
Date: 2008-07-12T01:30:57+09:00
Subject: Re: Beginner: if statement in one line?

Chris Chris wrote:

> Hi,
>
> a simple question, however I did not find an answer for this:
>
> How can I put a statement like
>
> if 5 == 5
>     puts '5'
> end
>
> in one line?
>
> Just writing them all statements together in one line didn't work,
> and a syntax like if 5 == 5 {puts '5'} end didn't either.

AFAIK, you can't use {} brackets to mark block for "if" statement, so 
anything with them won't work.

"If" uses "then" to mark beginning of its block and ends it with usual 
"end".

if 5 == 5 then
   puts '5'
end

But you can omit "then" if you have multiple lines:

if 5 == 5
   puts '5'
end

but for one-liners it is a must. So what you need is either:

if 5 == 5 then puts '5' end

or even shorter switching "then" for ":"

if 5 == 5 : puts '5' end