From: "David A. Black" <dblack@...>
Date: 2008-08-31T03:21:39+09:00
Subject: Re: Show elements of array separated

Hi --

On Sat, 30 Aug 2008, Michael Morin wrote:

> Robert Klemme wrote:
>> irb(main):010:0> foo.inject {|a,b| "#{a}, #{b}"}
>> => "a, b, c"
>> irb(main):011:0> ["a"].inject {|a,b| "#{a}, #{b}"}
>> => "a"
>> irb(main):012:0> [].inject {|a,b| "#{a}, #{b}"}
>> => nil
>> irb(main):013:0>
>> 
>> But note the empty Array case.
>> 
>> Kind regards
>>
>>     robert
>
> irb(main):006:0> [].inject{|a,b| "#{a}, #{b}" } or ""
> => ""

Or:

  [].inject {...}.to_s

In any case I think this is a job for #join :-)


David

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