From: "Darryl L. Pierce" <mcpierce@...>
Date: 2011-09-29T05:33:49+09:00
Subject: Re: Ruby Syntax @keywords ||= [ ]

On Thu, Sep 29, 2011 at 02:07:35AM +0900, Bhavesh Sharma wrote:
> Sorry if this comes across as a dumb question, but what does the
> following syntax mean in ruby.
> 
> @keywords ||= []
> 
> I understand that its setting the instance variable as an array but what
> is the logical operator '||' doing in there.

If @keywords is null then the above would assign the empty array to it.

-- 
Darryl L. Pierce <mcpierce@gmail.com>
http://mcpierce.multiply.com/
"What do you care what people think, Mr. Feynman?"