From: Jimi Damon <jdamon@...>
Date: 2007-12-08T07:42:12+09:00
Subject: Problem with Hash of Arrays

I am new to Ruby , but I consider this feature to be a bug.


What is happening is that i am creating a new Hash of Arrays.  The
following code works fine


a = Hash.new(Array.new())


a[:first] += ["this"]
a[:first] += ["is a"]
a[:first] += ["string"]
puts a.to_yaml

The following also works...

a = Hash.new(Array.new())

a[:key] += ["first"]
a[:key].push("second")
a[:key].push("third")
puts a.to_yaml


But this does not

a = Hash.new(Array.new())

a[:key].push("first")
a[:key].push("second")
a[:key].push("third")


However, this does not work if you don't use the "+=" operator first.
Note, this "feature" also
occurs for the "<<" operator , or any other methods that expect that
a[:key] is already a defined array.


I think if you already specified what the new object is going to be ,
then you should be able to call a method of that object.
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