From: thomas Mulvaney <mulvaneyenator@...>
Date: 2011-07-30T10:18:32+09:00
Subject: Dynamic creation of variables

Hi everyone!
I am building a interactive shell for chemistry related tasks and am
stuck.
The program loads all the elements of the periodic table and there
properties, into an array of objects.

Eg:

elements[0] is the element hydrogen.
puts elements[0].name #=> "hydrogen"
puts elements[0].mass #=> 1.0079
puts elements[0].symbol #=> "H"

I am also making them available by the symbol as follows

@elements.each do |e|
                instance_variable_set("@" + e.symbol, e)
        end

thus:

puts elements[0].name #=> "hydrogen"
puts @H.name #=> "hydrogen"

But i would prefer it if the elements were loaded up as normal variables
without the '@' in front.

is this possible?

Thanks in advance, Tom

-- 
Posted via http://www.ruby-forum.com/.