From: Clifford Heath <no@...>
Date: 2008-02-06T07:15:07+09:00
Subject: Re: creating a 2d array

Adam Akhtar wrote:
>> Todd's suggestion will work, but I prefer:
>> rows, cols = 2,3
>> mat = Array.new(rows) { Array.new(cols) }
>>
>> Cameron
> 
> Why do you use the {}? Arent they used when your creating hashes.

This is a block (like do...end), not a Hash, in this context.
The block is passed to the Array constructor and which calls it
with each index to yield a value for the elements of the outer
array being constructed.

Clifford Heath.