From: Suraj Kurapati <snk@...>
Date: 2008-07-01T07:45:41+09:00
Subject: Re: Ruby good-practice

I単aki Baz Castillo wrote:
> El Martes, 1 de Julio de 2008, Justin To escribi坦:
> 
>> 1) What's the stance on global variables? When to use them, if at all?
> 
> AFAIK try not using them (except if they are really needed).

Agreed.  Prefer constants, class variables, then global variables, in 
that order.

>> 2) Two arrays that have related info. (i.e. a[0] relates to b[0]) or one
>> hash?
> 
> A Hash, of course (IMHO).

If the problem domain prefers arrays, you can iterate them using 
Array#zip:

a.zip(b).each {|ai,bi| ... } # ai is a[i], bi is b[i], where i = 0 to 
max(a,b)

Always use data structures that best suit the problem domain, IMHO.
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