From: "Kroeger, Simon (ext)" <simon.kroeger.ext@...>
Date: 2006-06-22T16:55:40+09:00
Subject: Re: The difference between s=s+"a" ans s<< "a"

> From: Pete [mailto:pertl@gmx.org] 
> Sent: Wednesday, June 21, 2006 11:45 PM
> 
> Most readable + safe for me is e.g.:
> 
> puts "Hello, #{name}!"
> 
> puts "your calculation: #{arg1} * #{arg2} = #{arg1 * arg2}"

In case this wasn't obvious: this was an example. 

As there is no syntactical difference between pass by value 
and pass by reference in ruby I try to avoid modifying 
parameters and would use += in favour of <<. (at least in such
cases)

cheers

Simon

p.s.: oh well, I know there is no such thing as pass by value 
in ruby at all, it just feels like it for immediate values.