From: Robert Klemme <shortcutter@...>
Date: 2006-10-20T00:05:13+09:00
Subject: Re: array trouble

On 19.10.2006 16:59, Gijs Nijholt wrote:
> Hi
> 
> I want to add a value to an arrays' values like this:
> 
> ret = ""
> "abcd".to_a.each do |w|
>  ret += " "
> end
> 
> this gives => "abcd" in IRB
> but I expected it to give "a b c d "
> 
> why doesnt this work as such?

First, String#to_a does not what you probably expect:
irb(main):001:0> "abcd".to_a
=> ["abcd"]

Here are workable solutions:

irb(main):002:0> "abcd".gsub(/./, '\\& ')
=> "a b c d "
irb(main):003:0> "abcd".split(//).map {|s| s + " "}.join
=> "a b c d "

Kind regards

	robert