From: Love U Ruby <lists@...>
Date: 2013-05-13T23:06:55+09:00
Subject: Re: Unexpected output from Array#<< method.

John W Higgins wrote in post #1108782:

> irb(main):001:0> a = ["a"]
> => ["a"]
> irb(main):002:0> a[0].concat("b")
> => "ab"
> irb(main):003:0> a
> => ["ab"]
> irb(main):004:0> a << a[0]
> => ["ab", "ab"]
> irb(main):005:0> a[0].concat("c")
> => "abc"
> irb(main):006:0> a
> => ["abc", "abc"]

Perfect! Thanks for the wright directions.

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