From: Dominik Bathon <dbatml@...>
Date: 2006-07-21T22:35:20+09:00
Subject: Re: "" vs ''

On Thu, 20 Jul 2006 20:48:09 +0200, Ben Johnson <bjohnson@contuitive.com>  
wrote:

> I know this is a very simply question, but I've seen many different
> responses.
>
> Isn't it better to use 'some string' instead of "some string".
> Because the "" goes through a lot more working interpreting any
> variable that might be in the string, etc. Where as '' is just literal.

There is no difference at all after parsing, both get turned into a  
NODE_STR (unless there are interpolations):

>> %{"abc"}.parse_to_nodes.transform
=> [:str, {:lit=>"abc"}]
>> %{'abc'}.parse_to_nodes.transform
=> [:str, {:lit=>"abc"}]

And I don't think that there is any significant performance difference  
while parsing, so use whatever you like more.


Dominik