From: Robert Klemme <shortcutter@...>
Date: 2007-09-11T17:46:07+09:00
Subject: Re: Accessing variable names in ruby

2007/9/7, Todd A. Jacobs <tjacobs-sndr-019fdb@codegnome.org>:
> I found myself trying to do a bit of ruby debugging, and was going crazy
> trying to figure out how to display a variable's name instead of its
> value in a string. There may be a more elegant way, but I found that
> symbols did what I wanted:
>
>     if $DEBUG
>         [:my_email, :my_resume, :my_logfile].each do |v|
>             $stderr.puts "DEBUG: #{v} = #{eval v.to_s}"
>         end
>     end
>
> Is there a better way?

When you use %w you can easily use strings for this.  I'd also use
#inspect as it is generally better for debugging purposes:

%w[my_email my_resume my_logfile].each do |v|
  $stderr.puts "DEBUG: #{v} = #{eval(v).inspect}"
end if $DEBUG

Kind regards

robert