From: Sharad Gupta <sharadg@...>
Date: 2007-03-15T23:57:04+09:00
Subject: Re: What does this do? :

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You have to see the statement in its entirety. Its centered around the
ternary operator ?:

What the code is doing is:
if (user.id == recipient_id) {
  sender
} else {
  recipient
}


On 3/15/07, jko170 <jko170@gmail.com> wrote:
>
> Looking at this piece of code, what does the colon do?
>
> def partner_to(user)
>     raise ArgumentError unless user
>     user.id == recipient_id ? sender : recipient
> end
>
> I got the code from this rails post:
>
> http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/7fdccddde9b97ffc/6112294580b9e0ce?lnk=gst&q=internal+mail&rnum=1#6112294580b9e0ce
>
> I'm just asking because I've never seen the colon used before.
>
>
>

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