From: Robert Klemme <bob.news@...>
Date: 2006-02-23T18:18:34+09:00
Subject: Re: setting nil to zero

Botp wrote:
> Hi,
> 
> is there a setting to set nil to zero? something like $NIL=0, then
> set it back again to $NIL=nil... 
> 
> reason is i have quite a number of codes like ff
> 
> s.each do |w|
>   f[w] = 0 unless f[w] #i want to kill this lne since it does not
> jive with my pseudocode 
>   f[w] += 1
> end

.... and if f is not a Hash you can do

f[w] = (f[w] || 0) + 1

Kind regards

    robert