From: Arun Kumar <arunnandu@...>
Date: 2008-05-02T20:52:14+09:00
Subject: Beginner Question on Ruby

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Hi all,

I am beginning to learn ruby and cant seem to reason this behaviour. I
expect since empty or nill is the array, arr*n shouldnt change it.

Why is this behaviour so?

Code:

num_arr = Array.new
puts "Num Alpha: #{num_arr} and size: #{num_arr.size}"
puts "Num Alpha: #{num_arr << num_arr} and size: #{num_arr.size}"
num_arr.insert(-1, num_arr << num_arr)
puts "Num Alpha: #{num_arr} and size: #{num_arr.size}"

Output:

Num Alpha:  and size: 0
Num Alpha: [...] and size: 1
Num Alpha: [...][...][...][...][...][...][...][...][...] and size: 3

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