From: Li Chen <chen_li3@...>
Date: 2009-07-22T11:33:28+09:00
Subject: why I get an empty hash?

Hi all,

 I modify James' code and want to return a hash with all values set to
0. But I only get an empty hash. I wonder what is wrong with my codes.

Thanks,

Li

def table(array,word_size=1,word='')
  hash_table=Hash.new(0)

  array.each do |e|

    if word_size==1
             hash_table["#{word+e}" ]=0
    else
      table(array,word_size-1,word+e )
   end
 end
return  hash_table
end

######################
array=['A','C','G','T']
p table(array,2)



### here is ressults:###

>ruby table2.rb    
{}
>Exit code: 0
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