From: Roseanne Zhang <roseanne@...>
Date: 2006-11-22T02:48:54+09:00
Subject: Re: array question

Edwin Fine wrote:
> Li Chen wrote:
>> ####
>> array=[1,2,3,4,5]
>> 
>> array_new=Array.new
>> array.each {|e| array_new<<[e,e]}
>> 
>> array_new.flatten![1..-2].each{|e| print "#{e}\t" }
>> 
>> puts
>> 
>> ##output
>>>ruby sur3.rb
>> 1	2	2	3	3	4	4	5

I don't know why we need flatten, it is flatten before you do it.

[code]
array_new=[]
array.each {|e| array_new+=[e,e]} #use << will get the same result
array_new = array_new[1..-2]
puts [array_new.join(' ')]
[/code]



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