From: Sebastian Hungerecker <sepp2k@...>
Date: 2009-01-08T20:21:14+09:00
Subject: Re: Can you guess what it will be happened?

Brian Candler wrote:
> irb(main):003:0> a.insert(a.length, *b)
> => [1, 2, 3, 4]
> irb(main):004:0> a
> => [1, 2, 3, 4]
>
> Of course, a += b is a simpler way to write this.

Actually a.concat(b) is the simpler way to write this. a += b does something 
slightly different (create a third array [1,2,3,4] and then assign that to a)

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