From: Son SonOfLilit <sonoflilit@...>
Date: 2006-06-03T23:20:07+09:00
Subject: Re: []= and two dimensional arrays

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Thank you very much. Didn't know I could do   a = Array.new(4) { Array.new(4)
{ "x" }} :-)

Nive to learn something new.

SonOfLilit

On 6/3/06, Dave Burt <dave@burt.id.au> wrote:
>
> OK, here's the key.
>
>   a = Array.new.fill(Array.new.fill("x", 0, 4), 0, 4)
>
> 1) create an array (the inner "Array.new")
> 2) fill it with 4 "x"s
> 3) create another array (the outer "Array.new")
> 4) fill it with 4 references to the first array
>
> What you want is probably:
>
>   a = Array.new(4) { Array.new(4, "x") }
>
> or
>
>   a = Array.new(4) { Array.new(4) { "x" }}
>
> That will create a new array for each of the four elements it
> initializes the outer array with.
>
> The second version will give you 16 strings instead of just 4.
>
> Cheers,
> Dave
>
>

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